Google Git
Sign in
nest-open-source / nest-learning-thermostat / 5.1.7 / nspr / d9983f48184703e94753a0cafe2f85a103be5000 / . / nspr-4.8.6 / mozilla / nsprpub / pr / src / pthreads / ptio.c
blob: 23f415ccb0f389c5c94de3055693e43974dabd4a [file] [log] [blame]
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
/* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is the Netscape Portable Runtime (NSPR).
*
* The Initial Developer of the Original Code is
* Netscape Communications Corporation.
* Portions created by the Initial Developer are Copyright (C) 1998-2000
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
/*
** File: ptio.c
** Descritpion: Implemenation of I/O methods for pthreads
*/
#if defined(_PR_PTHREADS)
#if defined(_PR_POLL_WITH_SELECT)
#if !(defined(HPUX) && defined(_USE_BIG_FDS))
/* set fd limit for select(), before including system header files */
#define FD_SETSIZE (16 * 1024)
#endif
#endif
#include <pthread.h>
#include <string.h> /* for memset() */
#include <sys/types.h>
#include <dirent.h>
#include <fcntl.h>
#include <unistd.h>
#include <sys/socket.h>
#include <sys/stat.h>
#include <sys/uio.h>
#include <sys/file.h>
#include <sys/ioctl.h>
#if defined(DARWIN)
#include <sys/utsname.h> /* for uname */
#endif
#if defined(SOLARIS) || defined(UNIXWARE)
#include <sys/filio.h> /* to pick up FIONREAD */
#endif
#ifdef _PR_POLL_AVAILABLE
#include <poll.h>
#endif
#ifdef AIX
/* To pick up sysconf() */
#include <unistd.h>
#include <dlfcn.h> /* for dlopen */
#else
/* To pick up getrlimit() etc. */
#include <sys/time.h>
#include <sys/resource.h>
#endif
#ifdef SOLARIS
/*
* Define HAVE_SENDFILEV if the system has the sendfilev() system call.
* Code built this way won't run on a system without sendfilev().
* We can define HAVE_SENDFILEV by default when the minimum release
* of Solaris that NSPR supports has sendfilev().
*/
#ifdef HAVE_SENDFILEV
#include <sys/sendfile.h>
#define SOLARIS_SENDFILEV(a, b, c, d) sendfilev((a), (b), (c), (d))
#else
#include <dlfcn.h> /* for dlopen */
/*
* Match the definitions in <sys/sendfile.h>.
*/
typedef struct sendfilevec {
int sfv_fd; /* input fd */
uint_t sfv_flag; /* flags */
off_t sfv_off; /* offset to start reading from */
size_t sfv_len; /* amount of data */
} sendfilevec_t;
#define SFV_FD_SELF (-2)
/*
* extern ssize_t sendfilev(int, const struct sendfilevec *, int, size_t *);
*/
static ssize_t (*pt_solaris_sendfilev_fptr)() = NULL;
#define SOLARIS_SENDFILEV(a, b, c, d) \
(*pt_solaris_sendfilev_fptr)((a), (b), (c), (d))
#endif /* HAVE_SENDFILEV */
#endif /* SOLARIS */
/*
* The send_file() system call is available in AIX 4.3.2 or later.
* If this file is compiled on an older AIX system, it attempts to
* look up the send_file symbol at run time to determine whether
* we can use the faster PR_SendFile/PR_TransmitFile implementation based on
* send_file(). On AIX 4.3.2 or later, we can safely skip this
* runtime function dispatching and just use the send_file based
* implementation.
*/
#ifdef AIX
#ifdef SF_CLOSE
#define HAVE_SEND_FILE
#endif
#ifdef HAVE_SEND_FILE
#define AIX_SEND_FILE(a, b, c) send_file(a, b, c)
#else /* HAVE_SEND_FILE */
/*
* The following definitions match those in <sys/socket.h>
* on AIX 4.3.2.
*/
/*
* Structure for the send_file() system call
*/
struct sf_parms {
/* --------- header parms ---------- */
void *header_data; /* Input/Output. Points to header buf */
uint_t header_length; /* Input/Output. Length of the header */
/* --------- file parms ------------ */
int file_descriptor; /* Input. File descriptor of the file */
unsigned long long file_size; /* Output. Size of the file */
unsigned long long file_offset; /* Input/Output. Starting offset */
long long file_bytes; /* Input/Output. no. of bytes to send */
/* --------- trailer parms --------- */
void *trailer_data; /* Input/Output. Points to trailer buf */
uint_t trailer_length; /* Input/Output. Length of the trailer */
/* --------- return info ----------- */
unsigned long long bytes_sent; /* Output. no. of bytes sent */
};
/*
* Flags for the send_file() system call
*/
#define SF_CLOSE 0x00000001 /* close the socket after completion */
#define SF_REUSE 0x00000002 /* reuse socket. not supported */
#define SF_DONT_CACHE 0x00000004 /* don't apply network buffer cache */
#define SF_SYNC_CACHE 0x00000008 /* sync/update network buffer cache */
/*
* prototype: size_t send_file(int *, struct sf_parms *, uint_t);
*/
static ssize_t (*pt_aix_sendfile_fptr)() = NULL;
#define AIX_SEND_FILE(a, b, c) (*pt_aix_sendfile_fptr)(a, b, c)
#endif /* HAVE_SEND_FILE */
#endif /* AIX */
#ifdef LINUX
#include <sys/sendfile.h>
#endif
#include "primpl.h"
#ifdef HAVE_NETINET_TCP_H
#include <netinet/tcp.h> /* TCP_NODELAY, TCP_MAXSEG */
#endif
#ifdef LINUX
/* TCP_CORK is not defined in <netinet/tcp.h> on Red Hat Linux 6.0 */
#ifndef TCP_CORK
#define TCP_CORK 3
#endif
#endif
#ifdef _PR_IPV6_V6ONLY_PROBE
static PRBool _pr_ipv6_v6only_on_by_default;
#endif
#if (defined(HPUX) && !defined(HPUX10_30) && !defined(HPUX11))
#define _PRSelectFdSetArg_t int *
#elif defined(AIX4_1)
#define _PRSelectFdSetArg_t void *
#elif defined(IRIX) || (defined(AIX) && !defined(AIX4_1)) \
|| defined(OSF1) || defined(SOLARIS) \
|| defined(HPUX10_30) || defined(HPUX11) \
|| defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \
|| defined(FREEBSD) || defined(NETBSD) || defined(OPENBSD) \
|| defined(BSDI) || defined(NTO) || defined(DARWIN) \
|| defined(UNIXWARE) || defined(RISCOS) || defined(SYMBIAN)
#define _PRSelectFdSetArg_t fd_set *
#else
#error "Cannot determine architecture"
#endif
static PRFileDesc *pt_SetMethods(
PRIntn osfd, PRDescType type, PRBool isAcceptedSocket, PRBool imported);
static PRLock *_pr_flock_lock; /* For PR_LockFile() etc. */
static PRCondVar *_pr_flock_cv; /* For PR_LockFile() etc. */
static PRLock *_pr_rename_lock; /* For PR_Rename() */
/**************************************************************************/
/* These two functions are only used in assertions. */
#if defined(DEBUG)
PRBool IsValidNetAddr(const PRNetAddr *addr)
{
if ((addr != NULL)
&& (addr->raw.family != AF_UNIX)
&& (addr->raw.family != PR_AF_INET6)
&& (addr->raw.family != AF_INET)) {
return PR_FALSE;
}
return PR_TRUE;
}
static PRBool IsValidNetAddrLen(const PRNetAddr *addr, PRInt32 addr_len)
{
/*
* The definition of the length of a Unix domain socket address
* is not uniform, so we don't check it.
*/
if ((addr != NULL)
&& (addr->raw.family != AF_UNIX)
&& (PR_NETADDR_SIZE(addr) != addr_len)) {
#if defined(LINUX) && __GLIBC__ == 2 && __GLIBC_MINOR__ == 1
/*
* In glibc 2.1, struct sockaddr_in6 is 24 bytes. In glibc 2.2
* and in the 2.4 kernel, struct sockaddr_in6 has the scope_id
* field and is 28 bytes. It is possible for socket functions
* to return an addr_len greater than sizeof(struct sockaddr_in6).
* We need to allow that. (Bugzilla bug #77264)
*/
if ((PR_AF_INET6 == addr->raw.family)
&& (sizeof(addr->ipv6) == addr_len)) {
return PR_TRUE;
}
#endif
return PR_FALSE;
}
return PR_TRUE;
}
#endif /* DEBUG */
/*****************************************************************************/
/************************* I/O Continuation machinery ************************/
/*****************************************************************************/
/*
* The polling interval defines the maximum amount of time that a thread
* might hang up before an interrupt is noticed.
*/
#define PT_DEFAULT_POLL_MSEC 5000
#if defined(_PR_POLL_WITH_SELECT)
#define PT_DEFAULT_SELECT_SEC (PT_DEFAULT_POLL_MSEC/PR_MSEC_PER_SEC)
#define PT_DEFAULT_SELECT_USEC \
((PT_DEFAULT_POLL_MSEC % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC)
#endif
/*
* pt_SockLen is the type for the length of a socket address
* structure, used in the address length argument to bind,
* connect, accept, getsockname, getpeername, etc. Posix.1g
* defines this type as socklen_t. It is size_t or int on
* most current systems.
*/
#if defined(HAVE_SOCKLEN_T) \
|| (defined(__GLIBC__) && __GLIBC__ >= 2)
typedef socklen_t pt_SockLen;
#elif (defined(AIX) && !defined(AIX4_1))
typedef PRSize pt_SockLen;
#else
typedef PRIntn pt_SockLen;
#endif
typedef struct pt_Continuation pt_Continuation;
typedef PRBool (*ContinuationFn)(pt_Continuation *op, PRInt16 revents);
typedef enum pr_ContuationStatus
{
pt_continuation_pending,
pt_continuation_done
} pr_ContuationStatus;
struct pt_Continuation
{
/* The building of the continuation operation */
ContinuationFn function; /* what function to continue */
union { PRIntn osfd; } arg1; /* #1 - the op's fd */
union { void* buffer; } arg2; /* #2 - primary transfer buffer */
union {
PRSize amount; /* #3 - size of 'buffer', or */
pt_SockLen *addr_len; /* - length of address */
#ifdef HPUX11
/*
* For sendfile()
*/
struct file_spec {
off_t offset; /* offset in file to send */
size_t nbytes; /* length of file data to send */
size_t st_size; /* file size */
} file_spec;
#endif
} arg3;
union { PRIntn flags; } arg4; /* #4 - read/write flags */
union { PRNetAddr *addr; } arg5; /* #5 - send/recv address */
#ifdef HPUX11
/*
* For sendfile()
*/
int filedesc; /* descriptor of file to send */
int nbytes_to_send; /* size of header and file */
#endif /* HPUX11 */
#ifdef SOLARIS
/*
* For sendfilev()
*/
int nbytes_to_send; /* size of header and file */
#endif /* SOLARIS */
#ifdef LINUX
/*
* For sendfile()
*/
int in_fd; /* descriptor of file to send */
off_t offset;
size_t count;
#endif /* LINUX */
PRIntervalTime timeout; /* client (relative) timeout */
PRInt16 event; /* flags for poll()'s events */
/*
** The representation and notification of the results of the operation.
** These function can either return an int return code or a pointer to
** some object.
*/
union { PRSize code; void *object; } result;
PRIntn syserrno; /* in case it failed, why (errno) */
pr_ContuationStatus status; /* the status of the operation */
};
#if defined(DEBUG)
PTDebug pt_debug; /* this is shared between several modules */
PR_IMPLEMENT(void) PT_FPrintStats(PRFileDesc *debug_out, const char *msg)
{
PTDebug stats;
char buffer[100];
PRExplodedTime tod;
PRInt64 elapsed, aMil;
stats = pt_debug; /* a copy */
PR_ExplodeTime(stats.timeStarted, PR_LocalTimeParameters, &tod);
(void)PR_FormatTime(buffer, sizeof(buffer), "%T", &tod);
LL_SUB(elapsed, PR_Now(), stats.timeStarted);
LL_I2L(aMil, 1000000);
LL_DIV(elapsed, elapsed, aMil);
if (NULL != msg) PR_fprintf(debug_out, "%s", msg);
PR_fprintf(
debug_out, "\tstarted: %s[%lld]\n", buffer, elapsed);
PR_fprintf(
debug_out, "\tlocks [created: %u, destroyed: %u]\n",
stats.locks_created, stats.locks_destroyed);
PR_fprintf(
debug_out, "\tlocks [acquired: %u, released: %u]\n",
stats.locks_acquired, stats.locks_released);
PR_fprintf(
debug_out, "\tcvars [created: %u, destroyed: %u]\n",
stats.cvars_created, stats.cvars_destroyed);
PR_fprintf(
debug_out, "\tcvars [notified: %u, delayed_delete: %u]\n",
stats.cvars_notified, stats.delayed_cv_deletes);
} /* PT_FPrintStats */
#else
PR_IMPLEMENT(void) PT_FPrintStats(PRFileDesc *debug_out, const char *msg)
{
/* do nothing */
} /* PT_FPrintStats */
#endif /* DEBUG */
#if defined(_PR_POLL_WITH_SELECT)
/*
* OSF1 and HPUX report the POLLHUP event for a socket when the
* shutdown(SHUT_WR) operation is called for the remote end, even though
* the socket is still writeable. Use select(), instead of poll(), to
* workaround this problem.
*/
static void pt_poll_now_with_select(pt_Continuation *op)
{
PRInt32 msecs;
fd_set rd, wr, *rdp, *wrp;
struct timeval tv;
PRIntervalTime epoch, now, elapsed, remaining;
PRBool wait_for_remaining;
PRThread *self = PR_GetCurrentThread();
PR_ASSERT(PR_INTERVAL_NO_WAIT != op->timeout);
PR_ASSERT(op->arg1.osfd < FD_SETSIZE);
switch (op->timeout) {
case PR_INTERVAL_NO_TIMEOUT:
tv.tv_sec = PT_DEFAULT_SELECT_SEC;
tv.tv_usec = PT_DEFAULT_SELECT_USEC;
do
{
PRIntn rv;
if (op->event & POLLIN) {
FD_ZERO(&rd);
FD_SET(op->arg1.osfd, &rd);
rdp = &rd;
} else
rdp = NULL;
if (op->event & POLLOUT) {
FD_ZERO(&wr);
FD_SET(op->arg1.osfd, &wr);
wrp = &wr;
} else
wrp = NULL;
rv = select(op->arg1.osfd + 1, rdp, wrp, NULL, &tv);
if (_PT_THREAD_INTERRUPTED(self))
{
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if ((-1 == rv) && ((errno == EINTR) || (errno == EAGAIN)))
continue; /* go around the loop again */
if (rv > 0)
{
PRInt16 revents = 0;
if ((op->event & POLLIN) && FD_ISSET(op->arg1.osfd, &rd))
revents |= POLLIN;
if ((op->event & POLLOUT) && FD_ISSET(op->arg1.osfd, &wr))
revents |= POLLOUT;
if (op->function(op, revents))
op->status = pt_continuation_done;
} else if (rv == -1) {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
/* else, select timed out */
} while (pt_continuation_done != op->status);
break;
default:
now = epoch = PR_IntervalNow();
remaining = op->timeout;
do
{
PRIntn rv;
if (op->event & POLLIN) {
FD_ZERO(&rd);
FD_SET(op->arg1.osfd, &rd);
rdp = &rd;
} else
rdp = NULL;
if (op->event & POLLOUT) {
FD_ZERO(&wr);
FD_SET(op->arg1.osfd, &wr);
wrp = &wr;
} else
wrp = NULL;
wait_for_remaining = PR_TRUE;
msecs = (PRInt32)PR_IntervalToMilliseconds(remaining);
if (msecs > PT_DEFAULT_POLL_MSEC) {
wait_for_remaining = PR_FALSE;
msecs = PT_DEFAULT_POLL_MSEC;
}
tv.tv_sec = msecs/PR_MSEC_PER_SEC;
tv.tv_usec = (msecs % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC;
rv = select(op->arg1.osfd + 1, rdp, wrp, NULL, &tv);
if (_PT_THREAD_INTERRUPTED(self))
{
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if (rv > 0) {
PRInt16 revents = 0;
if ((op->event & POLLIN) && FD_ISSET(op->arg1.osfd, &rd))
revents |= POLLIN;
if ((op->event & POLLOUT) && FD_ISSET(op->arg1.osfd, &wr))
revents |= POLLOUT;
if (op->function(op, revents))
op->status = pt_continuation_done;
} else if ((rv == 0) ||
((errno == EINTR) || (errno == EAGAIN))) {
if (rv == 0) { /* select timed out */
if (wait_for_remaining)
now += remaining;
else
now += PR_MillisecondsToInterval(msecs);
} else
now = PR_IntervalNow();
elapsed = (PRIntervalTime) (now - epoch);
if (elapsed >= op->timeout) {
op->result.code = -1;
op->syserrno = ETIMEDOUT;
op->status = pt_continuation_done;
} else
remaining = op->timeout - elapsed;
} else {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
} while (pt_continuation_done != op->status);
break;
}
} /* pt_poll_now_with_select */
#endif /* _PR_POLL_WITH_SELECT */
static void pt_poll_now(pt_Continuation *op)
{
PRInt32 msecs;
PRIntervalTime epoch, now, elapsed, remaining;
PRBool wait_for_remaining;
PRThread *self = PR_GetCurrentThread();
PR_ASSERT(PR_INTERVAL_NO_WAIT != op->timeout);
#if defined (_PR_POLL_WITH_SELECT)
/*
* If the fd is small enough call the select-based poll operation
*/
if (op->arg1.osfd < FD_SETSIZE) {
pt_poll_now_with_select(op);
return;
}
#endif
switch (op->timeout) {
case PR_INTERVAL_NO_TIMEOUT:
msecs = PT_DEFAULT_POLL_MSEC;
do
{
PRIntn rv;
struct pollfd tmp_pfd;
tmp_pfd.revents = 0;
tmp_pfd.fd = op->arg1.osfd;
tmp_pfd.events = op->event;
rv = poll(&tmp_pfd, 1, msecs);
if (_PT_THREAD_INTERRUPTED(self))
{
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if ((-1 == rv) && ((errno == EINTR) || (errno == EAGAIN)))
continue; /* go around the loop again */
if (rv > 0)
{
PRInt16 events = tmp_pfd.events;
PRInt16 revents = tmp_pfd.revents;
if ((revents & POLLNVAL) /* busted in all cases */
|| ((events & POLLOUT) && (revents & POLLHUP)))
/* write op & hup */
{
op->result.code = -1;
if (POLLNVAL & revents) op->syserrno = EBADF;
else if (POLLHUP & revents) op->syserrno = EPIPE;
op->status = pt_continuation_done;
} else {
if (op->function(op, revents))
op->status = pt_continuation_done;
}
} else if (rv == -1) {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
/* else, poll timed out */
} while (pt_continuation_done != op->status);
break;
default:
now = epoch = PR_IntervalNow();
remaining = op->timeout;
do
{
PRIntn rv;
struct pollfd tmp_pfd;
tmp_pfd.revents = 0;
tmp_pfd.fd = op->arg1.osfd;
tmp_pfd.events = op->event;
wait_for_remaining = PR_TRUE;
msecs = (PRInt32)PR_IntervalToMilliseconds(remaining);
if (msecs > PT_DEFAULT_POLL_MSEC)
{
wait_for_remaining = PR_FALSE;
msecs = PT_DEFAULT_POLL_MSEC;
}
rv = poll(&tmp_pfd, 1, msecs);
if (_PT_THREAD_INTERRUPTED(self))
{
self->state &= ~PT_THREAD_ABORTED;
op->result.code = -1;
op->syserrno = EINTR;
op->status = pt_continuation_done;
return;
}
if (rv > 0)
{
PRInt16 events = tmp_pfd.events;
PRInt16 revents = tmp_pfd.revents;
if ((revents & POLLNVAL) /* busted in all cases */
|| ((events & POLLOUT) && (revents & POLLHUP)))
/* write op & hup */
{
op->result.code = -1;
if (POLLNVAL & revents) op->syserrno = EBADF;
else if (POLLHUP & revents) op->syserrno = EPIPE;
op->status = pt_continuation_done;
} else {
if (op->function(op, revents))
{
op->status = pt_continuation_done;
}
}
} else if ((rv == 0) ||
((errno == EINTR) || (errno == EAGAIN))) {
if (rv == 0) /* poll timed out */
{
if (wait_for_remaining)
now += remaining;
else
now += PR_MillisecondsToInterval(msecs);
}
else
now = PR_IntervalNow();
elapsed = (PRIntervalTime) (now - epoch);
if (elapsed >= op->timeout) {
op->result.code = -1;
op->syserrno = ETIMEDOUT;
op->status = pt_continuation_done;
} else
remaining = op->timeout - elapsed;
} else {
op->result.code = -1;
op->syserrno = errno;
op->status = pt_continuation_done;
}
} while (pt_continuation_done != op->status);
break;
}
} /* pt_poll_now */
static PRIntn pt_Continue(pt_Continuation *op)
{
op->status = pt_continuation_pending; /* set default value */
/*
* let each thread call poll directly
*/
pt_poll_now(op);
PR_ASSERT(pt_continuation_done == op->status);
return op->result.code;
} /* pt_Continue */
/*****************************************************************************/
/*********************** specific continuation functions *********************/
/*****************************************************************************/
static PRBool pt_connect_cont(pt_Continuation *op, PRInt16 revents)
{
op->syserrno = _MD_unix_get_nonblocking_connect_error(op->arg1.osfd);
if (op->syserrno != 0) {
op->result.code = -1;
} else {
op->result.code = 0;
}
return PR_TRUE; /* this one is cooked */
} /* pt_connect_cont */
static PRBool pt_accept_cont(pt_Continuation *op, PRInt16 revents)
{
op->syserrno = 0;
op->result.code = accept(
op->arg1.osfd, op->arg2.buffer, op->arg3.addr_len);
if (-1 == op->result.code)
{
op->syserrno = errno;
if (EWOULDBLOCK == errno || EAGAIN == errno || ECONNABORTED == errno)
return PR_FALSE; /* do nothing - this one ain't finished */
}
return PR_TRUE;
} /* pt_accept_cont */
static PRBool pt_read_cont(pt_Continuation *op, PRInt16 revents)
{
/*
* Any number of bytes will complete the operation. It need
* not (and probably will not) satisfy the request. The only
* error we continue is EWOULDBLOCK|EAGAIN.
*/
op->result.code = read(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount);
op->syserrno = errno;
return ((-1 == op->result.code) &&
(EWOULDBLOCK == op->syserrno || EAGAIN == op->syserrno)) ?
PR_FALSE : PR_TRUE;
} /* pt_read_cont */
static PRBool pt_recv_cont(pt_Continuation *op, PRInt16 revents)
{
/*
* Any number of bytes will complete the operation. It need
* not (and probably will not) satisfy the request. The only
* error we continue is EWOULDBLOCK|EAGAIN.
*/
#if defined(SOLARIS)
if (0 == op->arg4.flags)
op->result.code = read(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount);
else
op->result.code = recv(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags);
#else
op->result.code = recv(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags);
#endif
op->syserrno = errno;
return ((-1 == op->result.code) &&
(EWOULDBLOCK == op->syserrno || EAGAIN == op->syserrno)) ?
PR_FALSE : PR_TRUE;
} /* pt_recv_cont */
static PRBool pt_send_cont(pt_Continuation *op, PRInt16 revents)
{
PRIntn bytes;
#if defined(SOLARIS)
PRInt32 tmp_amount = op->arg3.amount;
#endif
/*
* We want to write the entire amount out, no matter how many
* tries it takes. Keep advancing the buffer and the decrementing
* the amount until the amount goes away. Return the total bytes
* (which should be the original amount) when finished (or an
* error).
*/
#if defined(SOLARIS)
retry:
bytes = write(op->arg1.osfd, op->arg2.buffer, tmp_amount);
#else
bytes = send(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags);
#endif
op->syserrno = errno;
#if defined(SOLARIS)
/*
* The write system call has been reported to return the ERANGE error
* on occasion. Try to write in smaller chunks to workaround this bug.
*/
if ((bytes == -1) && (op->syserrno == ERANGE))
{
if (tmp_amount > 1)
{
tmp_amount = tmp_amount/2; /* half the bytes */
goto retry;
}
}
#endif
if (bytes >= 0) /* this is progress */
{
char *bp = (char*)op->arg2.buffer;
bp += bytes; /* adjust the buffer pointer */
op->arg2.buffer = bp;
op->result.code += bytes; /* accumulate the number sent */
op->arg3.amount -= bytes; /* and reduce the required count */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
{
op->result.code = -1;
return PR_TRUE;
}
else return PR_FALSE;
} /* pt_send_cont */
static PRBool pt_write_cont(pt_Continuation *op, PRInt16 revents)
{
PRIntn bytes;
/*
* We want to write the entire amount out, no matter how many
* tries it takes. Keep advancing the buffer and the decrementing
* the amount until the amount goes away. Return the total bytes
* (which should be the original amount) when finished (or an
* error).
*/
bytes = write(op->arg1.osfd, op->arg2.buffer, op->arg3.amount);
op->syserrno = errno;
if (bytes >= 0) /* this is progress */
{
char *bp = (char*)op->arg2.buffer;
bp += bytes; /* adjust the buffer pointer */
op->arg2.buffer = bp;
op->result.code += bytes; /* accumulate the number sent */
op->arg3.amount -= bytes; /* and reduce the required count */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
{
op->result.code = -1;
return PR_TRUE;
}
else return PR_FALSE;
} /* pt_write_cont */
static PRBool pt_writev_cont(pt_Continuation *op, PRInt16 revents)
{
PRIntn bytes;
struct iovec *iov = (struct iovec*)op->arg2.buffer;
/*
* Same rules as write, but continuing seems to be a bit more
* complicated. As the number of bytes sent grows, we have to
* redefine the vector we're pointing at. We might have to
* modify an individual vector parms or we might have to eliminate
* a pair altogether.
*/
bytes = writev(op->arg1.osfd, iov, op->arg3.amount);
op->syserrno = errno;
if (bytes >= 0) /* this is progress */
{
PRIntn iov_index;
op->result.code += bytes; /* accumulate the number sent */
for (iov_index = 0; iov_index < op->arg3.amount; ++iov_index)
{
/* how much progress did we make in the i/o vector? */
if (bytes < iov[iov_index].iov_len)
{
/* this element's not done yet */
char **bp = (char**)&(iov[iov_index].iov_base);
iov[iov_index].iov_len -= bytes; /* there's that much left */
*bp += bytes; /* starting there */
break; /* go off and do that */
}
bytes -= iov[iov_index].iov_len; /* that element's consumed */
}
op->arg2.buffer = &iov[iov_index]; /* new start of array */
op->arg3.amount -= iov_index; /* and array length */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
{
op->result.code = -1;
return PR_TRUE;
}
else return PR_FALSE;
} /* pt_writev_cont */
static PRBool pt_sendto_cont(pt_Continuation *op, PRInt16 revents)
{
PRIntn bytes = sendto(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount, op->arg4.flags,
(struct sockaddr*)op->arg5.addr, PR_NETADDR_SIZE(op->arg5.addr));
op->syserrno = errno;
if (bytes >= 0) /* this is progress */
{
char *bp = (char*)op->arg2.buffer;
bp += bytes; /* adjust the buffer pointer */
op->arg2.buffer = bp;
op->result.code += bytes; /* accumulate the number sent */
op->arg3.amount -= bytes; /* and reduce the required count */
return (0 == op->arg3.amount) ? PR_TRUE : PR_FALSE;
}
else if ((EWOULDBLOCK != op->syserrno) && (EAGAIN != op->syserrno))
{
op->result.code = -1;
return PR_TRUE;
}
else return PR_FALSE;
} /* pt_sendto_cont */
static PRBool pt_recvfrom_cont(pt_Continuation *op, PRInt16 revents)
{
pt_SockLen addr_len = sizeof(PRNetAddr);
op->result.code = recvfrom(
op->arg1.osfd, op->arg2.buffer, op->arg3.amount,
op->arg4.flags, (struct sockaddr*)op->arg5.addr, &addr_len);
op->syserrno = errno;
return ((-1 == op->result.code) &&
(EWOULDBLOCK == op->syserrno || EAGAIN == op->syserrno)) ?
PR_FALSE : PR_TRUE;
} /* pt_recvfrom_cont */
#ifdef AIX
static PRBool pt_aix_sendfile_cont(pt_Continuation *op, PRInt16 revents)
{
struct sf_parms *sf_struct = (struct sf_parms *) op->arg2.buffer;
ssize_t rv;
unsigned long long saved_file_offset;
long long saved_file_bytes;
saved_file_offset = sf_struct->file_offset;
saved_file_bytes = sf_struct->file_bytes;
sf_struct->bytes_sent = 0;
if ((sf_struct->file_bytes > 0) && (sf_struct->file_size > 0))
PR_ASSERT((sf_struct->file_bytes + sf_struct->file_offset) <=
sf_struct->file_size);
rv = AIX_SEND_FILE(&op->arg1.osfd, sf_struct, op->arg4.flags);
op->syserrno = errno;
if (rv != -1) {
op->result.code += sf_struct->bytes_sent;
/*
* A bug in AIX 4.3.2 prevents the 'file_bytes' field from
* being updated. So, 'file_bytes' is maintained by NSPR to
* avoid conflict when this bug is fixed in AIX, in the future.
*/
if (saved_file_bytes != -1)
saved_file_bytes -= (sf_struct->file_offset - saved_file_offset);
sf_struct->file_bytes = saved_file_bytes;
} else if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN) {
op->result.code = -1;
} else {
return PR_FALSE;
}
if (rv == 1) { /* more data to send */
return PR_FALSE;
}
return PR_TRUE;
}
#endif /* AIX */
#ifdef HPUX11
static PRBool pt_hpux_sendfile_cont(pt_Continuation *op, PRInt16 revents)
{
struct iovec *hdtrl = (struct iovec *) op->arg2.buffer;
int count;
count = sendfile(op->arg1.osfd, op->filedesc, op->arg3.file_spec.offset,
op->arg3.file_spec.nbytes, hdtrl, op->arg4.flags);
PR_ASSERT(count <= op->nbytes_to_send);
op->syserrno = errno;
if (count != -1) {
op->result.code += count;
} else if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN) {
op->result.code = -1;
} else {
return PR_FALSE;
}
if (count != -1 && count < op->nbytes_to_send) {
if (count < hdtrl[0].iov_len) {
/* header not sent */
hdtrl[0].iov_base = ((char *) hdtrl[0].iov_base) + count;
hdtrl[0].iov_len -= count;
} else if (count < (hdtrl[0].iov_len + op->arg3.file_spec.nbytes)) {
/* header sent, file not sent */
PRUint32 file_nbytes_sent = count - hdtrl[0].iov_len;
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
op->arg3.file_spec.offset += file_nbytes_sent;
op->arg3.file_spec.nbytes -= file_nbytes_sent;
} else if (count < (hdtrl[0].iov_len + op->arg3.file_spec.nbytes +
hdtrl[1].iov_len)) {
PRUint32 trailer_nbytes_sent = count - (hdtrl[0].iov_len +
op->arg3.file_spec.nbytes);
/* header sent, file sent, trailer not sent */
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
/*
* set file offset and len so that no more file data is
* sent
*/
op->arg3.file_spec.offset = op->arg3.file_spec.st_size;
op->arg3.file_spec.nbytes = 0;
hdtrl[1].iov_base =((char *) hdtrl[1].iov_base)+ trailer_nbytes_sent;
hdtrl[1].iov_len -= trailer_nbytes_sent;
}
op->nbytes_to_send -= count;
return PR_FALSE;
}
return PR_TRUE;
}
#endif /* HPUX11 */
#ifdef SOLARIS
static PRBool pt_solaris_sendfile_cont(pt_Continuation *op, PRInt16 revents)
{
struct sendfilevec *vec = (struct sendfilevec *) op->arg2.buffer;
size_t xferred;
ssize_t count;
count = SOLARIS_SENDFILEV(op->arg1.osfd, vec, op->arg3.amount, &xferred);
op->syserrno = errno;
PR_ASSERT((count == -1) || (count == xferred));
if (count == -1) {
if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN
&& op->syserrno != EINTR) {
op->result.code = -1;
return PR_TRUE;
}
count = xferred;
} else if (count == 0) {
/*
* We are now at EOF. The file was truncated. Solaris sendfile is
* supposed to return 0 and no error in this case, though some versions
* may return -1 and EINVAL .
*/
op->result.code = -1;
op->syserrno = 0; /* will be treated as EOF */
return PR_TRUE;
}
PR_ASSERT(count <= op->nbytes_to_send);
op->result.code += count;
if (count < op->nbytes_to_send) {
op->nbytes_to_send -= count;
while (count >= vec->sfv_len) {
count -= vec->sfv_len;
vec++;
op->arg3.amount--;
}
PR_ASSERT(op->arg3.amount > 0);
vec->sfv_off += count;
vec->sfv_len -= count;
PR_ASSERT(vec->sfv_len > 0);
op->arg2.buffer = vec;
return PR_FALSE;
}
return PR_TRUE;
}
#endif /* SOLARIS */
#ifdef LINUX
static PRBool pt_linux_sendfile_cont(pt_Continuation *op, PRInt16 revents)
{
ssize_t rv;
off_t oldoffset;
oldoffset = op->offset;
rv = sendfile(op->arg1.osfd, op->in_fd, &op->offset, op->count);
op->syserrno = errno;
if (rv == -1) {
if (op->syserrno != EWOULDBLOCK && op->syserrno != EAGAIN) {
op->result.code = -1;
return PR_TRUE;
}
rv = 0;
}
PR_ASSERT(rv == op->offset - oldoffset);
op->result.code += rv;
if (rv < op->count) {
op->count -= rv;
return PR_FALSE;
}
return PR_TRUE;
}
#endif /* LINUX */
void _PR_InitIO(void)
{
#if defined(DEBUG)
memset(&pt_debug, 0, sizeof(PTDebug));
pt_debug.timeStarted = PR_Now();
#endif
_pr_flock_lock = PR_NewLock();
PR_ASSERT(NULL != _pr_flock_lock);
_pr_flock_cv = PR_NewCondVar(_pr_flock_lock);
PR_ASSERT(NULL != _pr_flock_cv);
_pr_rename_lock = PR_NewLock();
PR_ASSERT(NULL != _pr_rename_lock);
_PR_InitFdCache(); /* do that */
_pr_stdin = pt_SetMethods(0, PR_DESC_FILE, PR_FALSE, PR_TRUE);
_pr_stdout = pt_SetMethods(1, PR_DESC_FILE, PR_FALSE, PR_TRUE);
_pr_stderr = pt_SetMethods(2, PR_DESC_FILE, PR_FALSE, PR_TRUE);
PR_ASSERT(_pr_stdin && _pr_stdout && _pr_stderr);
#ifdef _PR_IPV6_V6ONLY_PROBE
/* In Mac OS X v10.3 Panther Beta the IPV6_V6ONLY socket option
* is turned on by default, contrary to what RFC 3493, Section
* 5.3 says. So we have to turn it off. Find out whether we
* are running on such a system.
*/
{
int osfd;
osfd = socket(AF_INET6, SOCK_STREAM, 0);
if (osfd != -1) {
int on;
int optlen = sizeof(on);
if (getsockopt(osfd, IPPROTO_IPV6, IPV6_V6ONLY,
&on, &optlen) == 0) {
_pr_ipv6_v6only_on_by_default = on;
}
close(osfd);
}
}
#endif
} /* _PR_InitIO */
void _PR_CleanupIO(void)
{
_PR_Putfd(_pr_stdin);
_pr_stdin = NULL;
_PR_Putfd(_pr_stdout);
_pr_stdout = NULL;
_PR_Putfd(_pr_stderr);
_pr_stderr = NULL;
_PR_CleanupFdCache();
if (_pr_flock_cv)
{
PR_DestroyCondVar(_pr_flock_cv);
_pr_flock_cv = NULL;
}
if (_pr_flock_lock)
{
PR_DestroyLock(_pr_flock_lock);
_pr_flock_lock = NULL;
}
if (_pr_rename_lock)
{
PR_DestroyLock(_pr_rename_lock);
_pr_rename_lock = NULL;
}
} /* _PR_CleanupIO */
PR_IMPLEMENT(PRFileDesc*) PR_GetSpecialFD(PRSpecialFD osfd)
{
PRFileDesc *result = NULL;
PR_ASSERT(osfd >= PR_StandardInput && osfd <= PR_StandardError);
if (!_pr_initialized) _PR_ImplicitInitialization();
switch (osfd)
{
case PR_StandardInput: result = _pr_stdin; break;
case PR_StandardOutput: result = _pr_stdout; break;
case PR_StandardError: result = _pr_stderr; break;
default:
(void)PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
}
return result;
} /* PR_GetSpecialFD */
/*****************************************************************************/
/***************************** I/O private methods ***************************/
/*****************************************************************************/
static PRBool pt_TestAbort(void)
{
PRThread *me = PR_GetCurrentThread();
if(_PT_THREAD_INTERRUPTED(me))
{
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0);
me->state &= ~PT_THREAD_ABORTED;
return PR_TRUE;
}
return PR_FALSE;
} /* pt_TestAbort */
static void pt_MapError(void (*mapper)(PRIntn), PRIntn syserrno)
{
switch (syserrno)
{
case EINTR:
PR_SetError(PR_PENDING_INTERRUPT_ERROR, 0); break;
case ETIMEDOUT:
PR_SetError(PR_IO_TIMEOUT_ERROR, 0); break;
default:
mapper(syserrno);
}
} /* pt_MapError */
static PRStatus pt_Close(PRFileDesc *fd)
{
if ((NULL == fd) || (NULL == fd->secret)
|| ((_PR_FILEDESC_OPEN != fd->secret->state)
&& (_PR_FILEDESC_CLOSED != fd->secret->state)))
{
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
if (pt_TestAbort()) return PR_FAILURE;
if (_PR_FILEDESC_OPEN == fd->secret->state)
{
if (-1 == close(fd->secret->md.osfd))
{
#ifdef OSF1
/*
* Bug 86941: On Tru64 UNIX V5.0A and V5.1, the close()
* system call, when called to close a TCP socket, may
* return -1 with errno set to EINVAL but the system call
* does close the socket successfully. An application
* may safely ignore the EINVAL error. This bug is fixed
* on Tru64 UNIX V5.1A and later. The defect tracking
* number is QAR 81431.
*/
if (PR_DESC_SOCKET_TCP != fd->methods->file_type
|| EINVAL != errno)
{
pt_MapError(_PR_MD_MAP_CLOSE_ERROR, errno);
return PR_FAILURE;
}
#else
pt_MapError(_PR_MD_MAP_CLOSE_ERROR, errno);
return PR_FAILURE;
#endif
}
fd->secret->state = _PR_FILEDESC_CLOSED;
}
_PR_Putfd(fd);
return PR_SUCCESS;
} /* pt_Close */
static PRInt32 pt_Read(PRFileDesc *fd, void *buf, PRInt32 amount)
{
PRInt32 syserrno, bytes = -1;
if (pt_TestAbort()) return bytes;
bytes = read(fd->secret->md.osfd, buf, amount);
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
&& (!fd->secret->nonblocking))
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = buf;
op.arg3.amount = amount;
op.timeout = PR_INTERVAL_NO_TIMEOUT;
op.function = pt_read_cont;
op.event = POLLIN | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes < 0)
pt_MapError(_PR_MD_MAP_READ_ERROR, syserrno);
return bytes;
} /* pt_Read */
static PRInt32 pt_Write(PRFileDesc *fd, const void *buf, PRInt32 amount)
{
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
if (pt_TestAbort()) return bytes;
bytes = write(fd->secret->md.osfd, buf, amount);
syserrno = errno;
if ( (bytes >= 0) && (bytes < amount) && (!fd->secret->nonblocking) )
{
buf = (char *) buf + bytes;
amount -= bytes;
fNeedContinue = PR_TRUE;
}
if ( (bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
&& (!fd->secret->nonblocking) )
{
bytes = 0;
fNeedContinue = PR_TRUE;
}
if (fNeedContinue == PR_TRUE)
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.timeout = PR_INTERVAL_NO_TIMEOUT;
op.result.code = bytes; /* initialize the number sent */
op.function = pt_write_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes == -1)
pt_MapError(_PR_MD_MAP_WRITE_ERROR, syserrno);
return bytes;
} /* pt_Write */
static PRInt32 pt_Writev(
PRFileDesc *fd, const PRIOVec *iov, PRInt32 iov_len, PRIntervalTime timeout)
{
PRIntn iov_index;
PRBool fNeedContinue = PR_FALSE;
PRInt32 syserrno, bytes, rv = -1;
struct iovec osiov_local[PR_MAX_IOVECTOR_SIZE], *osiov;
int osiov_len;
if (pt_TestAbort()) return rv;
/* Ensured by PR_Writev */
PR_ASSERT(iov_len <= PR_MAX_IOVECTOR_SIZE);
/*
* We can't pass iov to writev because PRIOVec and struct iovec
* may not be binary compatible. Make osiov a copy of iov and
* pass osiov to writev. We can modify osiov if we need to
* continue the operation.
*/
osiov = osiov_local;
osiov_len = iov_len;
for (iov_index = 0; iov_index < osiov_len; iov_index++)
{
osiov[iov_index].iov_base = iov[iov_index].iov_base;
osiov[iov_index].iov_len = iov[iov_index].iov_len;
}
rv = bytes = writev(fd->secret->md.osfd, osiov, osiov_len);
syserrno = errno;
if (!fd->secret->nonblocking)
{
if (bytes >= 0)
{
/*
* If we moved some bytes, how does that implicate the
* i/o vector list? In other words, exactly where are
* we within that array? What are the parameters for
* resumption? Maybe we're done!
*/
for ( ;osiov_len > 0; osiov++, osiov_len--)
{
if (bytes < osiov->iov_len)
{
/* this one's not done yet */
osiov->iov_base = (char*)osiov->iov_base + bytes;
osiov->iov_len -= bytes;
break; /* go off and do that */
}
bytes -= osiov->iov_len; /* this one's done cooked */
}
PR_ASSERT(osiov_len > 0 || bytes == 0);
if (osiov_len > 0)
{
if (PR_INTERVAL_NO_WAIT == timeout)
{
rv = -1;
syserrno = ETIMEDOUT;
}
else fNeedContinue = PR_TRUE;
}
}
else if (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else
{
rv = 0;
fNeedContinue = PR_TRUE;
}
}
}
if (fNeedContinue == PR_TRUE)
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)osiov;
op.arg3.amount = osiov_len;
op.timeout = timeout;
op.result.code = rv;
op.function = pt_writev_cont;
op.event = POLLOUT | POLLPRI;
rv = pt_Continue(&op);
syserrno = op.syserrno;
}
if (rv == -1) pt_MapError(_PR_MD_MAP_WRITEV_ERROR, syserrno);
return rv;
} /* pt_Writev */
static PRInt32 pt_Seek(PRFileDesc *fd, PRInt32 offset, PRSeekWhence whence)
{
return _PR_MD_LSEEK(fd, offset, whence);
} /* pt_Seek */
static PRInt64 pt_Seek64(PRFileDesc *fd, PRInt64 offset, PRSeekWhence whence)
{
return _PR_MD_LSEEK64(fd, offset, whence);
} /* pt_Seek64 */
static PRInt32 pt_Available_f(PRFileDesc *fd)
{
PRInt32 result, cur, end;
cur = _PR_MD_LSEEK(fd, 0, PR_SEEK_CUR);
if (cur >= 0)
end = _PR_MD_LSEEK(fd, 0, PR_SEEK_END);
if ((cur < 0) || (end < 0)) {
return -1;
}
result = end - cur;
_PR_MD_LSEEK(fd, cur, PR_SEEK_SET);
return result;
} /* pt_Available_f */
static PRInt64 pt_Available64_f(PRFileDesc *fd)
{
PRInt64 result, cur, end;
PRInt64 minus_one;
LL_I2L(minus_one, -1);
cur = _PR_MD_LSEEK64(fd, LL_ZERO, PR_SEEK_CUR);
if (LL_GE_ZERO(cur))
end = _PR_MD_LSEEK64(fd, LL_ZERO, PR_SEEK_END);
if (!LL_GE_ZERO(cur) || !LL_GE_ZERO(end)) return minus_one;
LL_SUB(result, end, cur);
(void)_PR_MD_LSEEK64(fd, cur, PR_SEEK_SET);
return result;
} /* pt_Available64_f */
static PRInt32 pt_Available_s(PRFileDesc *fd)
{
PRInt32 rv, bytes = -1;
if (pt_TestAbort()) return bytes;
rv = ioctl(fd->secret->md.osfd, FIONREAD, &bytes);
if (rv == -1)
pt_MapError(_PR_MD_MAP_SOCKETAVAILABLE_ERROR, errno);
return bytes;
} /* pt_Available_s */
static PRInt64 pt_Available64_s(PRFileDesc *fd)
{
PRInt64 rv;
LL_I2L(rv, pt_Available_s(fd));
return rv;
} /* pt_Available64_s */
static PRStatus pt_FileInfo(PRFileDesc *fd, PRFileInfo *info)
{
PRInt32 rv = _PR_MD_GETOPENFILEINFO(fd, info);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_FileInfo */
static PRStatus pt_FileInfo64(PRFileDesc *fd, PRFileInfo64 *info)
{
PRInt32 rv = _PR_MD_GETOPENFILEINFO64(fd, info);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_FileInfo64 */
static PRStatus pt_Synch(PRFileDesc *fd)
{
return (NULL == fd) ? PR_FAILURE : PR_SUCCESS;
} /* pt_Synch */
static PRStatus pt_Fsync(PRFileDesc *fd)
{
PRIntn rv = -1;
if (pt_TestAbort()) return PR_FAILURE;
rv = fsync(fd->secret->md.osfd);
if (rv < 0) {
pt_MapError(_PR_MD_MAP_FSYNC_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Fsync */
static PRStatus pt_Connect(
PRFileDesc *fd, const PRNetAddr *addr, PRIntervalTime timeout)
{
PRIntn rv = -1, syserrno;
pt_SockLen addr_len;
const PRNetAddr *addrp = addr;
#if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRUint16 md_af = addr->raw.family;
PRNetAddr addrCopy;
#endif
if (pt_TestAbort()) return PR_FAILURE;
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
addr_len = PR_NETADDR_SIZE(addr);
#if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
md_af = AF_INET6;
#ifndef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
#endif
}
#endif
#ifdef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
#endif
rv = connect(fd->secret->md.osfd, (struct sockaddr*)addrp, addr_len);
syserrno = errno;
if ((-1 == rv) && (EINPROGRESS == syserrno) && (!fd->secret->nonblocking))
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)addrp;
op.arg3.amount = addr_len;
op.timeout = timeout;
op.function = pt_connect_cont;
op.event = POLLOUT | POLLPRI;
rv = pt_Continue(&op);
syserrno = op.syserrno;
}
}
if (-1 == rv) {
pt_MapError(_PR_MD_MAP_CONNECT_ERROR, syserrno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Connect */
static PRStatus pt_ConnectContinue(
PRFileDesc *fd, PRInt16 out_flags)
{
int err;
PRInt32 osfd;
if (out_flags & PR_POLL_NVAL)
{
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
if ((out_flags & (PR_POLL_WRITE | PR_POLL_EXCEPT | PR_POLL_ERR)) == 0)
{
PR_ASSERT(out_flags == 0);
PR_SetError(PR_IN_PROGRESS_ERROR, 0);
return PR_FAILURE;
}
osfd = fd->secret->md.osfd;
err = _MD_unix_get_nonblocking_connect_error(osfd);
if (err != 0)
{
_PR_MD_MAP_CONNECT_ERROR(err);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_ConnectContinue */
PR_IMPLEMENT(PRStatus) PR_GetConnectStatus(const PRPollDesc *pd)
{
/* Find the NSPR layer and invoke its connectcontinue method */
PRFileDesc *bottom = PR_GetIdentitiesLayer(pd->fd, PR_NSPR_IO_LAYER);
if (NULL == bottom)
{
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
return pt_ConnectContinue(bottom, pd->out_flags);
} /* PR_GetConnectStatus */
static PRFileDesc* pt_Accept(
PRFileDesc *fd, PRNetAddr *addr, PRIntervalTime timeout)
{
PRFileDesc *newfd = NULL;
PRIntn syserrno, osfd = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
#ifdef SYMBIAN
PRNetAddr dummy_addr;
#endif
if (pt_TestAbort()) return newfd;
#ifdef SYMBIAN
/* On Symbian OS, accept crashes if addr is NULL. */
if (!addr)
addr = &dummy_addr;
#endif
#ifdef _PR_STRICT_ADDR_LEN
if (addr)
{
/*
* Set addr->raw.family just so that we can use the
* PR_NETADDR_SIZE macro.
*/
addr->raw.family = fd->secret->af;
addr_len = PR_NETADDR_SIZE(addr);
}
#endif
osfd = accept(fd->secret->md.osfd, (struct sockaddr*)addr, &addr_len);
syserrno = errno;
if (osfd == -1)
{
if (fd->secret->nonblocking) goto failed;
if (EWOULDBLOCK != syserrno && EAGAIN != syserrno
&& ECONNABORTED != syserrno)
goto failed;
else
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = addr;
op.arg3.addr_len = &addr_len;
op.timeout = timeout;
op.function = pt_accept_cont;
op.event = POLLIN | POLLPRI;
osfd = pt_Continue(&op);
syserrno = op.syserrno;
}
if (osfd < 0) goto failed;
}
}
#ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr)
{
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
#endif /* _PR_HAVE_SOCKADDR_LEN */
#ifdef _PR_INET6
if (addr && (AF_INET6 == addr->raw.family))
addr->raw.family = PR_AF_INET6;
#endif
newfd = pt_SetMethods(osfd, PR_DESC_SOCKET_TCP, PR_TRUE, PR_FALSE);
if (newfd == NULL) close(osfd); /* $$$ whoops! this doesn't work $$$ */
else
{
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
#ifdef LINUX
/*
* On Linux, experiments showed that the accepted sockets
* inherit the TCP_NODELAY socket option of the listening
* socket.
*/
newfd->secret->md.tcp_nodelay = fd->secret->md.tcp_nodelay;
#endif
}
return newfd;
failed:
pt_MapError(_PR_MD_MAP_ACCEPT_ERROR, syserrno);
return NULL;
} /* pt_Accept */
static PRStatus pt_Bind(PRFileDesc *fd, const PRNetAddr *addr)
{
PRIntn rv;
pt_SockLen addr_len;
const PRNetAddr *addrp = addr;
#if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRUint16 md_af = addr->raw.family;
PRNetAddr addrCopy;
#endif
if (pt_TestAbort()) return PR_FAILURE;
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
if (addr->raw.family == AF_UNIX)
{
/* Disallow relative pathnames */
if (addr->local.path[0] != '/')
{
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
}
#if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
md_af = AF_INET6;
#ifndef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
#endif
}
#endif
addr_len = PR_NETADDR_SIZE(addr);
#ifdef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
#endif
rv = bind(fd->secret->md.osfd, (struct sockaddr*)addrp, addr_len);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_BIND_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Bind */
static PRStatus pt_Listen(PRFileDesc *fd, PRIntn backlog)
{
PRIntn rv;
if (pt_TestAbort()) return PR_FAILURE;
rv = listen(fd->secret->md.osfd, backlog);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_LISTEN_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Listen */
static PRStatus pt_Shutdown(PRFileDesc *fd, PRIntn how)
{
PRIntn rv = -1;
if (pt_TestAbort()) return PR_FAILURE;
rv = shutdown(fd->secret->md.osfd, how);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_SHUTDOWN_ERROR, errno);
return PR_FAILURE;
}
return PR_SUCCESS;
} /* pt_Shutdown */
static PRInt16 pt_Poll(PRFileDesc *fd, PRInt16 in_flags, PRInt16 *out_flags)
{
*out_flags = 0;
return in_flags;
} /* pt_Poll */
static PRInt32 pt_Recv(
PRFileDesc *fd, void *buf, PRInt32 amount,
PRIntn flags, PRIntervalTime timeout)
{
PRInt32 syserrno, bytes = -1;
PRIntn osflags;
if (0 == flags)
osflags = 0;
else if (PR_MSG_PEEK == flags)
{
#ifdef SYMBIAN
/* MSG_PEEK doesn't work as expected. */
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return bytes;
#else
osflags = MSG_PEEK;
#endif
}
else
{
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return bytes;
}
if (pt_TestAbort()) return bytes;
/* recv() is a much slower call on pre-2.6 Solaris than read(). */
#if defined(SOLARIS)
if (0 == osflags)
bytes = read(fd->secret->md.osfd, buf, amount);
else
bytes = recv(fd->secret->md.osfd, buf, amount, osflags);
#else
bytes = recv(fd->secret->md.osfd, buf, amount, osflags);
#endif
syserrno = errno;
if ((bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
&& (!fd->secret->nonblocking))
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = buf;
op.arg3.amount = amount;
op.arg4.flags = osflags;
op.timeout = timeout;
op.function = pt_recv_cont;
op.event = POLLIN | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
}
if (bytes < 0)
pt_MapError(_PR_MD_MAP_RECV_ERROR, syserrno);
return bytes;
} /* pt_Recv */
static PRInt32 pt_SocketRead(PRFileDesc *fd, void *buf, PRInt32 amount)
{
return pt_Recv(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
} /* pt_SocketRead */
static PRInt32 pt_Send(
PRFileDesc *fd, const void *buf, PRInt32 amount,
PRIntn flags, PRIntervalTime timeout)
{
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
#if defined(SOLARIS)
PRInt32 tmp_amount = amount;
#endif
/*
* Under HP-UX DCE threads, pthread.h includes dce/cma_ux.h,
* which has the following:
* # define send cma_send
* extern int cma_send (int , void *, int, int );
* So we need to cast away the 'const' of argument #2 for send().
*/
#if defined (HPUX) && defined(_PR_DCETHREADS)
#define PT_SENDBUF_CAST (void *)
#else
#define PT_SENDBUF_CAST
#endif
if (pt_TestAbort()) return bytes;
/*
* On pre-2.6 Solaris, send() is much slower than write().
* On 2.6 and beyond, with in-kernel sockets, send() and
* write() are fairly equivalent in performance.
*/
#if defined(SOLARIS)
PR_ASSERT(0 == flags);
retry:
bytes = write(fd->secret->md.osfd, PT_SENDBUF_CAST buf, tmp_amount);
#else
bytes = send(fd->secret->md.osfd, PT_SENDBUF_CAST buf, amount, flags);
#endif
syserrno = errno;
#if defined(SOLARIS)
/*
* The write system call has been reported to return the ERANGE error
* on occasion. Try to write in smaller chunks to workaround this bug.
*/
if ((bytes == -1) && (syserrno == ERANGE))
{
if (tmp_amount > 1)
{
tmp_amount = tmp_amount/2; /* half the bytes */
goto retry;
}
}
#endif
if ( (bytes >= 0) && (bytes < amount) && (!fd->secret->nonblocking) )
{
if (PR_INTERVAL_NO_WAIT == timeout)
{
bytes = -1;
syserrno = ETIMEDOUT;
}
else
{
buf = (char *) buf + bytes;
amount -= bytes;
fNeedContinue = PR_TRUE;
}
}
if ( (bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
&& (!fd->secret->nonblocking) )
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else
{
bytes = 0;
fNeedContinue = PR_TRUE;
}
}
if (fNeedContinue == PR_TRUE)
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.timeout = timeout;
op.result.code = bytes; /* initialize the number sent */
op.function = pt_send_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes == -1)
pt_MapError(_PR_MD_MAP_SEND_ERROR, syserrno);
return bytes;
} /* pt_Send */
static PRInt32 pt_SocketWrite(PRFileDesc *fd, const void *buf, PRInt32 amount)
{
return pt_Send(fd, buf, amount, 0, PR_INTERVAL_NO_TIMEOUT);
} /* pt_SocketWrite */
static PRInt32 pt_SendTo(
PRFileDesc *fd, const void *buf,
PRInt32 amount, PRIntn flags, const PRNetAddr *addr,
PRIntervalTime timeout)
{
PRInt32 syserrno, bytes = -1;
PRBool fNeedContinue = PR_FALSE;
pt_SockLen addr_len;
const PRNetAddr *addrp = addr;
#if defined(_PR_HAVE_SOCKADDR_LEN) || defined(_PR_INET6)
PRUint16 md_af = addr->raw.family;
PRNetAddr addrCopy;
#endif
if (pt_TestAbort()) return bytes;
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
#if defined(_PR_INET6)
if (addr->raw.family == PR_AF_INET6) {
md_af = AF_INET6;
#ifndef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
addrCopy.raw.family = AF_INET6;
addrp = &addrCopy;
#endif
}
#endif
addr_len = PR_NETADDR_SIZE(addr);
#ifdef _PR_HAVE_SOCKADDR_LEN
addrCopy = *addr;
((struct sockaddr*)&addrCopy)->sa_len = addr_len;
((struct sockaddr*)&addrCopy)->sa_family = md_af;
addrp = &addrCopy;
#endif
bytes = sendto(
fd->secret->md.osfd, buf, amount, flags,
(struct sockaddr*)addrp, addr_len);
syserrno = errno;
if ( (bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
&& (!fd->secret->nonblocking) )
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else fNeedContinue = PR_TRUE;
}
if (fNeedContinue == PR_TRUE)
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = (void*)buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.arg5.addr = (PRNetAddr*)addrp;
op.timeout = timeout;
op.result.code = 0; /* initialize the number sent */
op.function = pt_sendto_cont;
op.event = POLLOUT | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes < 0)
pt_MapError(_PR_MD_MAP_SENDTO_ERROR, syserrno);
return bytes;
} /* pt_SendTo */
static PRInt32 pt_RecvFrom(PRFileDesc *fd, void *buf, PRInt32 amount,
PRIntn flags, PRNetAddr *addr, PRIntervalTime timeout)
{
PRBool fNeedContinue = PR_FALSE;
PRInt32 syserrno, bytes = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) return bytes;
bytes = recvfrom(
fd->secret->md.osfd, buf, amount, flags,
(struct sockaddr*)addr, &addr_len);
syserrno = errno;
if ( (bytes == -1) && (syserrno == EWOULDBLOCK || syserrno == EAGAIN)
&& (!fd->secret->nonblocking) )
{
if (PR_INTERVAL_NO_WAIT == timeout) syserrno = ETIMEDOUT;
else fNeedContinue = PR_TRUE;
}
if (fNeedContinue == PR_TRUE)
{
pt_Continuation op;
op.arg1.osfd = fd->secret->md.osfd;
op.arg2.buffer = buf;
op.arg3.amount = amount;
op.arg4.flags = flags;
op.arg5.addr = addr;
op.timeout = timeout;
op.function = pt_recvfrom_cont;
op.event = POLLIN | POLLPRI;
bytes = pt_Continue(&op);
syserrno = op.syserrno;
}
if (bytes >= 0)
{
#ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr)
{
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
#endif /* _PR_HAVE_SOCKADDR_LEN */
#ifdef _PR_INET6
if (addr && (AF_INET6 == addr->raw.family))
addr->raw.family = PR_AF_INET6;
#endif
}
else
pt_MapError(_PR_MD_MAP_RECVFROM_ERROR, syserrno);
return bytes;
} /* pt_RecvFrom */
#ifdef AIX
#ifndef HAVE_SEND_FILE
static pthread_once_t pt_aix_sendfile_once_block = PTHREAD_ONCE_INIT;
static void pt_aix_sendfile_init_routine(void)
{
void *handle = dlopen(NULL, RTLD_NOW | RTLD_GLOBAL);
pt_aix_sendfile_fptr = (ssize_t (*)()) dlsym(handle, "send_file");
dlclose(handle);
}
/*
* pt_AIXDispatchSendFile
*/
static PRInt32 pt_AIXDispatchSendFile(PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
int rv;
rv = pthread_once(&pt_aix_sendfile_once_block,
pt_aix_sendfile_init_routine);
PR_ASSERT(0 == rv);
if (pt_aix_sendfile_fptr) {
return pt_AIXSendFile(sd, sfd, flags, timeout);
} else {
return PR_EmulateSendFile(sd, sfd, flags, timeout);
}
}
#endif /* !HAVE_SEND_FILE */
/*
* pt_AIXSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the send_file() system
* call available in AIX 4.3.2.
*/
static PRInt32 pt_AIXSendFile(PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
struct sf_parms sf_struct;
uint_t send_flags;
ssize_t rv;
int syserrno;
PRInt32 count;
unsigned long long saved_file_offset;
long long saved_file_bytes;
sf_struct.header_data = (void *) sfd->header; /* cast away the 'const' */
sf_struct.header_length = sfd->hlen;
sf_struct.file_descriptor = sfd->fd->secret->md.osfd;
sf_struct.file_size = 0;
sf_struct.file_offset = sfd->file_offset;
if (sfd->file_nbytes == 0)
sf_struct.file_bytes = -1;
else
sf_struct.file_bytes = sfd->file_nbytes;
sf_struct.trailer_data = (void *) sfd->trailer;
sf_struct.trailer_length = sfd->tlen;
sf_struct.bytes_sent = 0;
saved_file_offset = sf_struct.file_offset;
saved_file_bytes = sf_struct.file_bytes;
send_flags = 0; /* flags processed at the end */
/* The first argument to send_file() is int*. */
PR_ASSERT(sizeof(int) == sizeof(sd->secret->md.osfd));
do {
rv = AIX_SEND_FILE(&sd->secret->md.osfd, &sf_struct, send_flags);
} while (rv == -1 && (syserrno = errno) == EINTR);
if (rv == -1) {
if (syserrno == EAGAIN || syserrno == EWOULDBLOCK) {
count = 0; /* Not a real error. Need to continue. */
} else {
count = -1;
}
} else {
count = sf_struct.bytes_sent;
/*
* A bug in AIX 4.3.2 prevents the 'file_bytes' field from
* being updated. So, 'file_bytes' is maintained by NSPR to
* avoid conflict when this bug is fixed in AIX, in the future.
*/
if (saved_file_bytes != -1)
saved_file_bytes -= (sf_struct.file_offset - saved_file_offset);
sf_struct.file_bytes = saved_file_bytes;
}
if ((rv == 1) || ((rv == -1) && (count == 0))) {
pt_Continuation op;
op.arg1.osfd = sd->secret->md.osfd;
op.arg2.buffer = &sf_struct;
op.arg4.flags = send_flags;
op.result.code = count;
op.timeout = timeout;
op.function = pt_aix_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
}
if (count == -1) {
pt_MapError(_MD_aix_map_sendfile_error, syserrno);
return -1;
}
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == (sfd->hlen + sfd->tlen +
((sfd->file_nbytes == 0) ?
sf_struct.file_size - sfd->file_offset :
sfd->file_nbytes)));
return count;
}
#endif /* AIX */
#ifdef HPUX11
/*
* pt_HPUXSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the sendfile() system
* call available in HP-UX B.11.00.
*/
static PRInt32 pt_HPUXSendFile(PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
struct stat statbuf;
size_t nbytes_to_send, file_nbytes_to_send;
struct iovec hdtrl[2]; /* optional header and trailer buffers */
int send_flags;
PRInt32 count;
int syserrno;
if (sfd->file_nbytes == 0) {
/* Get file size */
if (fstat(sfd->fd->secret->md.osfd, &statbuf) == -1) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
file_nbytes_to_send = statbuf.st_size - sfd->file_offset;
} else {
file_nbytes_to_send = sfd->file_nbytes;
}
nbytes_to_send = sfd->hlen + sfd->tlen + file_nbytes_to_send;
hdtrl[0].iov_base = (void *) sfd->header; /* cast away the 'const' */
hdtrl[0].iov_len = sfd->hlen;
hdtrl[1].iov_base = (void *) sfd->trailer;
hdtrl[1].iov_len = sfd->tlen;
/*
* SF_DISCONNECT seems to close the socket even if sendfile()
* only does a partial send on a nonblocking socket. This
* would prevent the subsequent sendfile() calls on that socket
* from working. So we don't use the SD_DISCONNECT flag.
*/
send_flags = 0;
do {
count = sendfile(sd->secret->md.osfd, sfd->fd->secret->md.osfd,
sfd->file_offset, file_nbytes_to_send, hdtrl, send_flags);
} while (count == -1 && (syserrno = errno) == EINTR);
if (count == -1 && (syserrno == EAGAIN || syserrno == EWOULDBLOCK)) {
count = 0;
}
if (count != -1 && count < nbytes_to_send) {
pt_Continuation op;
if (count < sfd->hlen) {
/* header not sent */
hdtrl[0].iov_base = ((char *) sfd->header) + count;
hdtrl[0].iov_len = sfd->hlen - count;
op.arg3.file_spec.offset = sfd->file_offset;
op.arg3.file_spec.nbytes = file_nbytes_to_send;
} else if (count < (sfd->hlen + file_nbytes_to_send)) {
/* header sent, file not sent */
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
op.arg3.file_spec.offset = sfd->file_offset + count - sfd->hlen;
op.arg3.file_spec.nbytes = file_nbytes_to_send - (count - sfd->hlen);
} else if (count < (sfd->hlen + file_nbytes_to_send + sfd->tlen)) {
PRUint32 trailer_nbytes_sent;
/* header sent, file sent, trailer not sent */
hdtrl[0].iov_base = NULL;
hdtrl[0].iov_len = 0;
/*
* set file offset and len so that no more file data is
* sent
*/
op.arg3.file_spec.offset = statbuf.st_size;
op.arg3.file_spec.nbytes = 0;
trailer_nbytes_sent = count - sfd->hlen - file_nbytes_to_send;
hdtrl[1].iov_base = ((char *) sfd->trailer) + trailer_nbytes_sent;
hdtrl[1].iov_len = sfd->tlen - trailer_nbytes_sent;
}
op.arg1.osfd = sd->secret->md.osfd;
op.filedesc = sfd->fd->secret->md.osfd;
op.arg2.buffer = hdtrl;
op.arg3.file_spec.st_size = statbuf.st_size;
op.arg4.flags = send_flags;
op.nbytes_to_send = nbytes_to_send - count;
op.result.code = count;
op.timeout = timeout;
op.function = pt_hpux_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
}
if (count == -1) {
pt_MapError(_MD_hpux_map_sendfile_error, syserrno);
return -1;
}
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == nbytes_to_send);
return count;
}
#endif /* HPUX11 */
#ifdef SOLARIS
/*
* pt_SolarisSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the sendfilev() system
* call available in Solaris 8.
*/
static PRInt32 pt_SolarisSendFile(PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
struct stat statbuf;
size_t nbytes_to_send, file_nbytes_to_send;
struct sendfilevec sfv_struct[3];
int sfvcnt = 0;
size_t xferred;
PRInt32 count;
int syserrno;
if (sfd->file_nbytes == 0) {
/* Get file size */
if (fstat(sfd->fd->secret->md.osfd, &statbuf) == -1) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
file_nbytes_to_send = statbuf.st_size - sfd->file_offset;
} else {
file_nbytes_to_send = sfd->file_nbytes;
}
nbytes_to_send = sfd->hlen + sfd->tlen + file_nbytes_to_send;
if (sfd->hlen != 0) {
sfv_struct[sfvcnt].sfv_fd = SFV_FD_SELF;
sfv_struct[sfvcnt].sfv_flag = 0;
sfv_struct[sfvcnt].sfv_off = (off_t) sfd->header;
sfv_struct[sfvcnt].sfv_len = sfd->hlen;
sfvcnt++;
}
if (file_nbytes_to_send != 0) {
sfv_struct[sfvcnt].sfv_fd = sfd->fd->secret->md.osfd;
sfv_struct[sfvcnt].sfv_flag = 0;
sfv_struct[sfvcnt].sfv_off = sfd->file_offset;
sfv_struct[sfvcnt].sfv_len = file_nbytes_to_send;
sfvcnt++;
}
if (sfd->tlen != 0) {
sfv_struct[sfvcnt].sfv_fd = SFV_FD_SELF;
sfv_struct[sfvcnt].sfv_flag = 0;
sfv_struct[sfvcnt].sfv_off = (off_t) sfd->trailer;
sfv_struct[sfvcnt].sfv_len = sfd->tlen;
sfvcnt++;
}
if (0 == sfvcnt) {
count = 0;
goto done;
}
/*
* Strictly speaking, we may have sent some bytes when the
* sendfilev() is interrupted and we should retry it from an
* updated offset. We are not doing that here.
*/
count = SOLARIS_SENDFILEV(sd->secret->md.osfd, sfv_struct,
sfvcnt, &xferred);
PR_ASSERT((count == -1) || (count == xferred));
if (count == -1) {
syserrno = errno;
if (syserrno == EINTR
|| syserrno == EAGAIN || syserrno == EWOULDBLOCK) {
count = xferred;
}
} else if (count == 0) {
/*
* We are now at EOF. The file was truncated. Solaris sendfile is
* supposed to return 0 and no error in this case, though some versions
* may return -1 and EINVAL .
*/
count = -1;
syserrno = 0; /* will be treated as EOF */
}
if (count != -1 && count < nbytes_to_send) {
pt_Continuation op;
struct sendfilevec *vec = sfv_struct;
PRInt32 rem = count;
while (rem >= vec->sfv_len) {
rem -= vec->sfv_len;
vec++;
sfvcnt--;
}
PR_ASSERT(sfvcnt > 0);
vec->sfv_off += rem;
vec->sfv_len -= rem;
PR_ASSERT(vec->sfv_len > 0);
op.arg1.osfd = sd->secret->md.osfd;
op.arg2.buffer = vec;
op.arg3.amount = sfvcnt;
op.arg4.flags = 0;
op.nbytes_to_send = nbytes_to_send - count;
op.result.code = count;
op.timeout = timeout;
op.function = pt_solaris_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
}
done:
if (count == -1) {
pt_MapError(_MD_solaris_map_sendfile_error, syserrno);
return -1;
}
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == nbytes_to_send);
return count;
}
#ifndef HAVE_SENDFILEV
static pthread_once_t pt_solaris_sendfilev_once_block = PTHREAD_ONCE_INIT;
static void pt_solaris_sendfilev_init_routine(void)
{
void *handle;
PRBool close_it = PR_FALSE;
/*
* We do not want to unload libsendfile.so. This handle is leaked
* intentionally.
*/
handle = dlopen("libsendfile.so", RTLD_LAZY | RTLD_GLOBAL);
PR_LOG(_pr_io_lm, PR_LOG_DEBUG,
("dlopen(libsendfile.so) returns %p", handle));
if (NULL == handle) {
/*
* The dlopen(0, mode) call is to allow for the possibility that
* sendfilev() may become part of a standard system library in a
* future Solaris release.
*/
handle = dlopen(0, RTLD_LAZY | RTLD_GLOBAL);
PR_LOG(_pr_io_lm, PR_LOG_DEBUG,
("dlopen(0) returns %p", handle));
close_it = PR_TRUE;
}
pt_solaris_sendfilev_fptr = (ssize_t (*)()) dlsym(handle, "sendfilev");
PR_LOG(_pr_io_lm, PR_LOG_DEBUG,
("dlsym(sendfilev) returns %p", pt_solaris_sendfilev_fptr));
if (close_it) {
dlclose(handle);
}
}
/*
* pt_SolarisDispatchSendFile
*/
static PRInt32 pt_SolarisDispatchSendFile(PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
int rv;
rv = pthread_once(&pt_solaris_sendfilev_once_block,
pt_solaris_sendfilev_init_routine);
PR_ASSERT(0 == rv);
if (pt_solaris_sendfilev_fptr) {
return pt_SolarisSendFile(sd, sfd, flags, timeout);
} else {
return PR_EmulateSendFile(sd, sfd, flags, timeout);
}
}
#endif /* !HAVE_SENDFILEV */
#endif /* SOLARIS */
#ifdef LINUX
/*
* pt_LinuxSendFile
*
* Send file sfd->fd across socket sd. If specified, header and trailer
* buffers are sent before and after the file, respectively.
*
* PR_TRANSMITFILE_CLOSE_SOCKET flag - close socket after sending file
*
* return number of bytes sent or -1 on error
*
* This implementation takes advantage of the sendfile() system
* call available in Linux kernel 2.2 or higher.
*/
static PRInt32 pt_LinuxSendFile(PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
struct stat statbuf;
size_t file_nbytes_to_send;
PRInt32 count = 0;
ssize_t rv;
int syserrno;
off_t offset;
PRBool tcp_cork_enabled = PR_FALSE;
int tcp_cork;
if (sfd->file_nbytes == 0) {
/* Get file size */
if (fstat(sfd->fd->secret->md.osfd, &statbuf) == -1) {
_PR_MD_MAP_FSTAT_ERROR(errno);
return -1;
}
file_nbytes_to_send = statbuf.st_size - sfd->file_offset;
} else {
file_nbytes_to_send = sfd->file_nbytes;
}
if ((sfd->hlen != 0 || sfd->tlen != 0)
&& sd->secret->md.tcp_nodelay == 0) {
tcp_cork = 1;
if (setsockopt(sd->secret->md.osfd, SOL_TCP, TCP_CORK,
&tcp_cork, sizeof tcp_cork) == 0) {
tcp_cork_enabled = PR_TRUE;
} else {
syserrno = errno;
if (syserrno != EINVAL) {
_PR_MD_MAP_SETSOCKOPT_ERROR(syserrno);
return -1;
}
/*
* The most likely reason for the EINVAL error is that
* TCP_NODELAY is set (with a function other than
* PR_SetSocketOption). This is not fatal, so we keep
* on going.
*/
PR_LOG(_pr_io_lm, PR_LOG_WARNING,
("pt_LinuxSendFile: "
"setsockopt(TCP_CORK) failed with EINVAL\n"));
}
}
if (sfd->hlen != 0) {
count = PR_Send(sd, sfd->header, sfd->hlen, 0, timeout);
if (count == -1) {
goto failed;
}
}
if (file_nbytes_to_send != 0) {
offset = sfd->file_offset;
do {
rv = sendfile(sd->secret->md.osfd, sfd->fd->secret->md.osfd,
&offset, file_nbytes_to_send);
} while (rv == -1 && (syserrno = errno) == EINTR);
if (rv == -1) {
if (syserrno != EAGAIN && syserrno != EWOULDBLOCK) {
_MD_linux_map_sendfile_error(syserrno);
count = -1;
goto failed;
}
rv = 0;
}
PR_ASSERT(rv == offset - sfd->file_offset);
count += rv;
if (rv < file_nbytes_to_send) {
pt_Continuation op;
op.arg1.osfd = sd->secret->md.osfd;
op.in_fd = sfd->fd->secret->md.osfd;
op.offset = offset;
op.count = file_nbytes_to_send - rv;
op.result.code = count;
op.timeout = timeout;
op.function = pt_linux_sendfile_cont;
op.event = POLLOUT | POLLPRI;
count = pt_Continue(&op);
syserrno = op.syserrno;
if (count == -1) {
pt_MapError(_MD_linux_map_sendfile_error, syserrno);
goto failed;
}
}
}
if (sfd->tlen != 0) {
rv = PR_Send(sd, sfd->trailer, sfd->tlen, 0, timeout);
if (rv == -1) {
count = -1;
goto failed;
}
count += rv;
}
failed:
if (tcp_cork_enabled) {
tcp_cork = 0;
if (setsockopt(sd->secret->md.osfd, SOL_TCP, TCP_CORK,
&tcp_cork, sizeof tcp_cork) == -1 && count != -1) {
_PR_MD_MAP_SETSOCKOPT_ERROR(errno);
count = -1;
}
}
if (count != -1) {
if (flags & PR_TRANSMITFILE_CLOSE_SOCKET) {
PR_Close(sd);
}
PR_ASSERT(count == sfd->hlen + sfd->tlen + file_nbytes_to_send);
}
return count;
}
#endif /* LINUX */
#ifdef AIX
extern int _pr_aix_send_file_use_disabled;
#endif
static PRInt32 pt_SendFile(
PRFileDesc *sd, PRSendFileData *sfd,
PRTransmitFileFlags flags, PRIntervalTime timeout)
{
if (pt_TestAbort()) return -1;
/* The socket must be in blocking mode. */
if (sd->secret->nonblocking)
{
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return -1;
}
#ifdef HPUX11
return(pt_HPUXSendFile(sd, sfd, flags, timeout));
#elif defined(AIX)
#ifdef HAVE_SEND_FILE
/*
* A bug in AIX 4.3.2 results in corruption of data transferred by
* send_file(); AIX patch PTF U463956 contains the fix. A user can
* disable the use of send_file function in NSPR, when this patch is
* not installed on the system, by setting the envionment variable
* NSPR_AIX_SEND_FILE_USE_DISABLED to 1.
*/
if (_pr_aix_send_file_use_disabled)
return(PR_EmulateSendFile(sd, sfd, flags, timeout));
else
return(pt_AIXSendFile(sd, sfd, flags, timeout));
#else
return(PR_EmulateSendFile(sd, sfd, flags, timeout));
/* return(pt_AIXDispatchSendFile(sd, sfd, flags, timeout));*/
#endif /* HAVE_SEND_FILE */
#elif defined(SOLARIS)
#ifdef HAVE_SENDFILEV
return(pt_SolarisSendFile(sd, sfd, flags, timeout));
#else
return(pt_SolarisDispatchSendFile(sd, sfd, flags, timeout));
#endif /* HAVE_SENDFILEV */
#elif defined(LINUX)
return(pt_LinuxSendFile(sd, sfd, flags, timeout));
#else
return(PR_EmulateSendFile(sd, sfd, flags, timeout));
#endif
}
static PRInt32 pt_TransmitFile(
PRFileDesc *sd, PRFileDesc *fd, const void *headers,
PRInt32 hlen, PRTransmitFileFlags flags, PRIntervalTime timeout)
{
PRSendFileData sfd;
sfd.fd = fd;
sfd.file_offset = 0;
sfd.file_nbytes = 0;
sfd.header = headers;
sfd.hlen = hlen;
sfd.trailer = NULL;
sfd.tlen = 0;
return(pt_SendFile(sd, &sfd, flags, timeout));
} /* pt_TransmitFile */
static PRInt32 pt_AcceptRead(
PRFileDesc *sd, PRFileDesc **nd, PRNetAddr **raddr,
void *buf, PRInt32 amount, PRIntervalTime timeout)
{
PRInt32 rv = -1;
if (pt_TestAbort()) return rv;
/* The socket must be in blocking mode. */
if (sd->secret->nonblocking)
{
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return rv;
}
rv = PR_EmulateAcceptRead(sd, nd, raddr, buf, amount, timeout);
return rv;
} /* pt_AcceptRead */
static PRStatus pt_GetSockName(PRFileDesc *fd, PRNetAddr *addr)
{
PRIntn rv = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) return PR_FAILURE;
rv = getsockname(
fd->secret->md.osfd, (struct sockaddr*)addr, &addr_len);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_GETSOCKNAME_ERROR, errno);
return PR_FAILURE;
} else {
#ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr)
{
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
#endif /* _PR_HAVE_SOCKADDR_LEN */
#ifdef _PR_INET6
if (AF_INET6 == addr->raw.family)
addr->raw.family = PR_AF_INET6;
#endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
return PR_SUCCESS;
}
} /* pt_GetSockName */
static PRStatus pt_GetPeerName(PRFileDesc *fd, PRNetAddr *addr)
{
PRIntn rv = -1;
pt_SockLen addr_len = sizeof(PRNetAddr);
if (pt_TestAbort()) return PR_FAILURE;
rv = getpeername(
fd->secret->md.osfd, (struct sockaddr*)addr, &addr_len);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_GETPEERNAME_ERROR, errno);
return PR_FAILURE;
} else {
#ifdef _PR_HAVE_SOCKADDR_LEN
/* ignore the sa_len field of struct sockaddr */
if (addr)
{
addr->raw.family = ((struct sockaddr*)addr)->sa_family;
}
#endif /* _PR_HAVE_SOCKADDR_LEN */
#ifdef _PR_INET6
if (AF_INET6 == addr->raw.family)
addr->raw.family = PR_AF_INET6;
#endif
PR_ASSERT(IsValidNetAddr(addr) == PR_TRUE);
PR_ASSERT(IsValidNetAddrLen(addr, addr_len) == PR_TRUE);
return PR_SUCCESS;
}
} /* pt_GetPeerName */
static PRStatus pt_GetSocketOption(PRFileDesc *fd, PRSocketOptionData *data)
{
PRIntn rv;
pt_SockLen length;
PRInt32 level, name;
/*
* PR_SockOpt_Nonblocking is a special case that does not
* translate to a getsockopt() call
*/
if (PR_SockOpt_Nonblocking == data->option)
{
data->value.non_blocking = fd->secret->nonblocking;
return PR_SUCCESS;
}
rv = _PR_MapOptionName(data->option, &level, &name);
if (PR_SUCCESS == rv)
{
switch (data->option)
{
case PR_SockOpt_Linger:
{
struct linger linger;
length = sizeof(linger);
rv = getsockopt(
fd->secret->md.osfd, level, name, (char *) &linger, &length);
PR_ASSERT((-1 == rv) || (sizeof(linger) == length));
data->value.linger.polarity =
(linger.l_onoff) ? PR_TRUE : PR_FALSE;
data->value.linger.linger =
PR_SecondsToInterval(linger.l_linger);
break;
}
case PR_SockOpt_Reuseaddr:
case PR_SockOpt_Keepalive:
case PR_SockOpt_NoDelay:
case PR_SockOpt_Broadcast:
{
PRIntn value;
length = sizeof(PRIntn);
rv = getsockopt(
fd->secret->md.osfd, level, name, (char*)&value, &length);
PR_ASSERT((-1 == rv) || (sizeof(PRIntn) == length));
data->value.reuse_addr = (0 == value) ? PR_FALSE : PR_TRUE;
break;
}
case PR_SockOpt_McastLoopback:
{
PRUint8 xbool;
length = sizeof(xbool);
rv = getsockopt(
fd->secret->md.osfd, level, name,
(char*)&xbool, &length);
PR_ASSERT((-1 == rv) || (sizeof(xbool) == length));
data->value.mcast_loopback = (0 == xbool) ? PR_FALSE : PR_TRUE;
break;
}
case PR_SockOpt_RecvBufferSize:
case PR_SockOpt_SendBufferSize:
case PR_SockOpt_MaxSegment:
{
PRIntn value;
length = sizeof(PRIntn);
rv = getsockopt(
fd->secret->md.osfd, level, name, (char*)&value, &length);
PR_ASSERT((-1 == rv) || (sizeof(PRIntn) == length));
data->value.recv_buffer_size = value;
break;
}
case PR_SockOpt_IpTimeToLive:
case PR_SockOpt_IpTypeOfService:
{
length = sizeof(PRUintn);
rv = getsockopt(
fd->secret->md.osfd, level, name,
(char*)&data->value.ip_ttl, &length);
PR_ASSERT((-1 == rv) || (sizeof(PRIntn) == length));
break;
}
case PR_SockOpt_McastTimeToLive:
{
PRUint8 ttl;
length = sizeof(ttl);
rv = getsockopt(
fd->secret->md.osfd, level, name,
(char*)&ttl, &length);
PR_ASSERT((-1 == rv) || (sizeof(ttl) == length));
data->value.mcast_ttl = ttl;
break;
}
case PR_SockOpt_AddMember:
case PR_SockOpt_DropMember:
{
struct ip_mreq mreq;
length = sizeof(mreq);
rv = getsockopt(
fd->secret->md.osfd, level, name, (char*)&mreq, &length);
PR_ASSERT((-1 == rv) || (sizeof(mreq) == length));
data->value.add_member.mcaddr.inet.ip =
mreq.imr_multiaddr.s_addr;
data->value.add_member.ifaddr.inet.ip =
mreq.imr_interface.s_addr;
break;
}
case PR_SockOpt_McastInterface:
{
length = sizeof(data->value.mcast_if.inet.ip);
rv = getsockopt(
fd->secret->md.osfd, level, name,
(char*)&data->value.mcast_if.inet.ip, &length);
PR_ASSERT((-1 == rv)
|| (sizeof(data->value.mcast_if.inet.ip) == length));
break;
}
default:
PR_NOT_REACHED("Unknown socket option");
break;
}
if (-1 == rv) _PR_MD_MAP_GETSOCKOPT_ERROR(errno);
}
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_GetSocketOption */
static PRStatus pt_SetSocketOption(PRFileDesc *fd, const PRSocketOptionData *data)
{
PRIntn rv;
PRInt32 level, name;
/*
* PR_SockOpt_Nonblocking is a special case that does not
* translate to a setsockopt call.
*/
if (PR_SockOpt_Nonblocking == data->option)
{
fd->secret->nonblocking = data->value.non_blocking;
return PR_SUCCESS;
}
rv = _PR_MapOptionName(data->option, &level, &name);
if (PR_SUCCESS == rv)
{
switch (data->option)
{
case PR_SockOpt_Linger:
{
struct linger linger;
linger.l_onoff = data->value.linger.polarity;
linger.l_linger = PR_IntervalToSeconds(data->value.linger.linger);
rv = setsockopt(
fd->secret->md.osfd, level, name, (char*)&linger, sizeof(linger));
break;
}
case PR_SockOpt_Reuseaddr:
case PR_SockOpt_Keepalive:
case PR_SockOpt_NoDelay:
case PR_SockOpt_Broadcast:
{
PRIntn value = (data->value.reuse_addr) ? 1 : 0;
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&value, sizeof(PRIntn));
#ifdef LINUX
/* for pt_LinuxSendFile */
if (name == TCP_NODELAY && rv == 0) {
fd->secret->md.tcp_nodelay = value;
}
#endif
break;
}
case PR_SockOpt_McastLoopback:
{
PRUint8 xbool = data->value.mcast_loopback ? 1 : 0;
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&xbool, sizeof(xbool));
break;
}
case PR_SockOpt_RecvBufferSize:
case PR_SockOpt_SendBufferSize:
case PR_SockOpt_MaxSegment:
{
PRIntn value = data->value.recv_buffer_size;
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&value, sizeof(PRIntn));
break;
}
case PR_SockOpt_IpTimeToLive:
case PR_SockOpt_IpTypeOfService:
{
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&data->value.ip_ttl, sizeof(PRUintn));
break;
}
case PR_SockOpt_McastTimeToLive:
{
PRUint8 ttl = data->value.mcast_ttl;
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&ttl, sizeof(ttl));
break;
}
case PR_SockOpt_AddMember:
case PR_SockOpt_DropMember:
{
struct ip_mreq mreq;
mreq.imr_multiaddr.s_addr =
data->value.add_member.mcaddr.inet.ip;
mreq.imr_interface.s_addr =
data->value.add_member.ifaddr.inet.ip;
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&mreq, sizeof(mreq));
break;
}
case PR_SockOpt_McastInterface:
{
rv = setsockopt(
fd->secret->md.osfd, level, name,
(char*)&data->value.mcast_if.inet.ip,
sizeof(data->value.mcast_if.inet.ip));
break;
}
default:
PR_NOT_REACHED("Unknown socket option");
break;
}
if (-1 == rv) _PR_MD_MAP_SETSOCKOPT_ERROR(errno);
}
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* pt_SetSocketOption */
/*****************************************************************************/
/****************************** I/O method objects ***************************/
/*****************************************************************************/
static PRIOMethods _pr_file_methods = {
PR_DESC_FILE,
pt_Close,
pt_Read,
pt_Write,
pt_Available_f,
pt_Available64_f,
pt_Fsync,
pt_Seek,
pt_Seek64,
pt_FileInfo,
pt_FileInfo64,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
static PRIOMethods _pr_pipe_methods = {
PR_DESC_PIPE,
pt_Close,
pt_Read,
pt_Write,
pt_Available_s,
pt_Available64_s,
pt_Synch,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
static PRIOMethods _pr_tcp_methods = {
PR_DESC_SOCKET_TCP,
pt_Close,
pt_SocketRead,
pt_SocketWrite,
pt_Available_s,
pt_Available64_s,
pt_Synch,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
pt_Writev,
pt_Connect,
pt_Accept,
pt_Bind,
pt_Listen,
pt_Shutdown,
pt_Recv,
pt_Send,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
pt_AcceptRead,
pt_TransmitFile,
pt_GetSockName,
pt_GetPeerName,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
pt_GetSocketOption,
pt_SetSocketOption,
pt_SendFile,
pt_ConnectContinue,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
static PRIOMethods _pr_udp_methods = {
PR_DESC_SOCKET_UDP,
pt_Close,
pt_SocketRead,
pt_SocketWrite,
pt_Available_s,
pt_Available64_s,
pt_Synch,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
pt_Writev,
pt_Connect,
(PRAcceptFN)_PR_InvalidDesc,
pt_Bind,
pt_Listen,
pt_Shutdown,
pt_Recv,
pt_Send,
pt_RecvFrom,
pt_SendTo,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
pt_GetSockName,
pt_GetPeerName,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
pt_GetSocketOption,
pt_SetSocketOption,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
static PRIOMethods _pr_socketpollfd_methods = {
(PRDescType) 0,
(PRCloseFN)_PR_InvalidStatus,
(PRReadFN)_PR_InvalidInt,
(PRWriteFN)_PR_InvalidInt,
(PRAvailableFN)_PR_InvalidInt,
(PRAvailable64FN)_PR_InvalidInt64,
(PRFsyncFN)_PR_InvalidStatus,
(PRSeekFN)_PR_InvalidInt,
(PRSeek64FN)_PR_InvalidInt64,
(PRFileInfoFN)_PR_InvalidStatus,
(PRFileInfo64FN)_PR_InvalidStatus,
(PRWritevFN)_PR_InvalidInt,
(PRConnectFN)_PR_InvalidStatus,
(PRAcceptFN)_PR_InvalidDesc,
(PRBindFN)_PR_InvalidStatus,
(PRListenFN)_PR_InvalidStatus,
(PRShutdownFN)_PR_InvalidStatus,
(PRRecvFN)_PR_InvalidInt,
(PRSendFN)_PR_InvalidInt,
(PRRecvfromFN)_PR_InvalidInt,
(PRSendtoFN)_PR_InvalidInt,
pt_Poll,
(PRAcceptreadFN)_PR_InvalidInt,
(PRTransmitfileFN)_PR_InvalidInt,
(PRGetsocknameFN)_PR_InvalidStatus,
(PRGetpeernameFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRGetsocketoptionFN)_PR_InvalidStatus,
(PRSetsocketoptionFN)_PR_InvalidStatus,
(PRSendfileFN)_PR_InvalidInt,
(PRConnectcontinueFN)_PR_InvalidStatus,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt,
(PRReservedFN)_PR_InvalidInt
};
#if defined(HPUX) || defined(OSF1) || defined(SOLARIS) || defined (IRIX) \
|| defined(LINUX) || defined(__GNU__) || defined(__GLIBC__) \
|| defined(AIX) || defined(FREEBSD) || defined(NETBSD) \
|| defined(OPENBSD) || defined(BSDI) || defined(NTO) \
|| defined(DARWIN) || defined(UNIXWARE) || defined(RISCOS) \
|| defined(SYMBIAN)
#define _PR_FCNTL_FLAGS O_NONBLOCK
#else
#error "Can't determine architecture"
#endif
/*
* Put a Unix file descriptor in non-blocking mode.
*/
static void pt_MakeFdNonblock(PRIntn osfd)
{
PRIntn flags;
flags = fcntl(osfd, F_GETFL, 0);
flags |= _PR_FCNTL_FLAGS;
(void)fcntl(osfd, F_SETFL, flags);
}
/*
* Put a Unix socket fd in non-blocking mode that can
* ideally be inherited by an accepted socket.
*
* Why doesn't pt_MakeFdNonblock do? This is to deal with
* the special case of HP-UX. HP-UX has three kinds of
* non-blocking modes for sockets: the fcntl() O_NONBLOCK
* and O_NDELAY flags and ioctl() FIOSNBIO request. Only
* the ioctl() FIOSNBIO form of non-blocking mode is
* inherited by an accepted socket.
*
* Other platforms just use the generic pt_MakeFdNonblock
* to put a socket in non-blocking mode.
*/
#ifdef HPUX
static void pt_MakeSocketNonblock(PRIntn osfd)
{
PRIntn one = 1;
(void)ioctl(osfd, FIOSNBIO, &one);
}
#else
#define pt_MakeSocketNonblock pt_MakeFdNonblock
#endif
static PRFileDesc *pt_SetMethods(
PRIntn osfd, PRDescType type, PRBool isAcceptedSocket, PRBool imported)
{
PRFileDesc *fd = _PR_Getfd();
if (fd == NULL) PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
else
{
fd->secret->md.osfd = osfd;
fd->secret->state = _PR_FILEDESC_OPEN;
if (imported) fd->secret->inheritable = _PR_TRI_UNKNOWN;
else
{
/* By default, a Unix fd is not closed on exec. */
#ifdef DEBUG
PRIntn flags;
flags = fcntl(osfd, F_GETFD, 0);
PR_ASSERT(0 == flags);
#endif
fd->secret->inheritable = _PR_TRI_TRUE;
}
switch (type)
{
case PR_DESC_FILE:
fd->methods = PR_GetFileMethods();
break;
case PR_DESC_SOCKET_TCP:
fd->methods = PR_GetTCPMethods();
#ifdef _PR_ACCEPT_INHERIT_NONBLOCK
if (!isAcceptedSocket) pt_MakeSocketNonblock(osfd);
#else
pt_MakeSocketNonblock(osfd);
#endif
break;
case PR_DESC_SOCKET_UDP:
fd->methods = PR_GetUDPMethods();
pt_MakeFdNonblock(osfd);
break;
case PR_DESC_PIPE:
fd->methods = PR_GetPipeMethods();
pt_MakeFdNonblock(osfd);
break;
default:
break;
}
}
return fd;
} /* pt_SetMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetFileMethods(void)
{
return &_pr_file_methods;
} /* PR_GetFileMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetPipeMethods(void)
{
return &_pr_pipe_methods;
} /* PR_GetPipeMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetTCPMethods(void)
{
return &_pr_tcp_methods;
} /* PR_GetTCPMethods */
PR_IMPLEMENT(const PRIOMethods*) PR_GetUDPMethods(void)
{
return &_pr_udp_methods;
} /* PR_GetUDPMethods */
static const PRIOMethods* PR_GetSocketPollFdMethods(void)
{
return &_pr_socketpollfd_methods;
} /* PR_GetSocketPollFdMethods */
PR_IMPLEMENT(PRFileDesc*) PR_AllocFileDesc(
PRInt32 osfd, const PRIOMethods *methods)
{
PRFileDesc *fd = _PR_Getfd();
if (NULL == fd) goto failed;
fd->methods = methods;
fd->secret->md.osfd = osfd;
/* Make fd non-blocking */
if (osfd > 2)
{
/* Don't mess around with stdin, stdout or stderr */
if (&_pr_tcp_methods == methods) pt_MakeSocketNonblock(osfd);
else pt_MakeFdNonblock(osfd);
}
fd->secret->state = _PR_FILEDESC_OPEN;
fd->secret->inheritable = _PR_TRI_UNKNOWN;
return fd;
failed:
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return fd;
} /* PR_AllocFileDesc */
#if !defined(_PR_INET6) || defined(_PR_INET6_PROBE)
PR_EXTERN(PRStatus) _pr_push_ipv6toipv4_layer(PRFileDesc *fd);
#if defined(_PR_INET6_PROBE)
extern PRBool _pr_ipv6_is_present(void);
PR_IMPLEMENT(PRBool) _pr_test_ipv6_socket()
{
PRInt32 osfd;
#if defined(DARWIN)
/*
* Disable IPv6 if Darwin version is less than 7.0.0 (OS X 10.3). IPv6 on
* lesser versions is not ready for general use (see bug 222031).
*/
{
struct utsname u;
if (uname(&u) != 0 || atoi(u.release) < 7)
return PR_FALSE;
}
#endif
/*
* HP-UX only: HP-UX IPv6 Porting Guide (dated February 2001)
* suggests that we call open("/dev/ip6", O_RDWR) to determine
* whether IPv6 APIs and the IPv6 stack are on the system.
* Our portable test below seems to work fine, so I am using it.
*/
osfd = socket(AF_INET6, SOCK_STREAM, 0);
if (osfd != -1) {
close(osfd);
return PR_TRUE;
}
return PR_FALSE;
}
#endif /* _PR_INET6_PROBE */
#endif
PR_IMPLEMENT(PRFileDesc*) PR_Socket(PRInt32 domain, PRInt32 type, PRInt32 proto)
{
PRIntn osfd;
PRDescType ftype;
PRFileDesc *fd = NULL;
PRInt32 tmp_domain = domain;
if (!_pr_initialized) _PR_ImplicitInitialization();
if (pt_TestAbort()) return NULL;
if (PF_INET != domain
&& PR_AF_INET6 != domain
&& PF_UNIX != domain)
{
PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, 0);
return fd;
}
if (type == SOCK_STREAM) ftype = PR_DESC_SOCKET_TCP;
else if (type == SOCK_DGRAM) ftype = PR_DESC_SOCKET_UDP;
else
{
(void)PR_SetError(PR_ADDRESS_NOT_SUPPORTED_ERROR, 0);
return fd;
}
#if defined(_PR_INET6_PROBE)
if (PR_AF_INET6 == domain)
domain = _pr_ipv6_is_present() ? AF_INET6 : AF_INET;
#elif defined(_PR_INET6)
if (PR_AF_INET6 == domain)
domain = AF_INET6;
#else
if (PR_AF_INET6 == domain)
domain = AF_INET;
#endif
osfd = socket(domain, type, proto);
if (osfd == -1) pt_MapError(_PR_MD_MAP_SOCKET_ERROR, errno);
else
{
#ifdef _PR_IPV6_V6ONLY_PROBE
if ((domain == AF_INET6) && _pr_ipv6_v6only_on_by_default)
{
int on = 0;
(void)setsockopt(osfd, IPPROTO_IPV6, IPV6_V6ONLY,
&on, sizeof(on));
}
#endif
fd = pt_SetMethods(osfd, ftype, PR_FALSE, PR_FALSE);
if (fd == NULL) close(osfd);
}
#ifdef _PR_NEED_SECRET_AF
if (fd != NULL) fd->secret->af = domain;
#endif
#if defined(_PR_INET6_PROBE) || !defined(_PR_INET6)
if (fd != NULL) {
/*
* For platforms with no support for IPv6
* create layered socket for IPv4-mapped IPv6 addresses
*/
if (PR_AF_INET6 == tmp_domain && PR_AF_INET == domain) {
if (PR_FAILURE == _pr_push_ipv6toipv4_layer(fd)) {
PR_Close(fd);
fd = NULL;
}
}
}
#endif
return fd;
} /* PR_Socket */
/*****************************************************************************/
/****************************** I/O public methods ***************************/
/*****************************************************************************/
PR_IMPLEMENT(PRFileDesc*) PR_OpenFile(
const char *name, PRIntn flags, PRIntn mode)
{
PRFileDesc *fd = NULL;
PRIntn syserrno, osfd = -1, osflags = 0;;
if (!_pr_initialized) _PR_ImplicitInitialization();
if (pt_TestAbort()) return NULL;
if (flags & PR_RDONLY) osflags |= O_RDONLY;
if (flags & PR_WRONLY) osflags |= O_WRONLY;
if (flags & PR_RDWR) osflags |= O_RDWR;
if (flags & PR_APPEND) osflags |= O_APPEND;
if (flags & PR_TRUNCATE) osflags |= O_TRUNC;
if (flags & PR_EXCL) osflags |= O_EXCL;
if (flags & PR_SYNC)
{
#if defined(O_SYNC)
osflags |= O_SYNC;
#elif defined(O_FSYNC)
osflags |= O_FSYNC;
#else
#error "Neither O_SYNC nor O_FSYNC is defined on this platform"
#endif
}
/*
** We have to hold the lock across the creation in order to
** enforce the sematics of PR_Rename(). (see the latter for
** more details)
*/
if (flags & PR_CREATE_FILE)
{
osflags |= O_CREAT;
if (NULL !=_pr_rename_lock)
PR_Lock(_pr_rename_lock);
}
osfd = _md_iovector._open64(name, osflags, mode);
syserrno = errno;
if ((flags & PR_CREATE_FILE) && (NULL !=_pr_rename_lock))
PR_Unlock(_pr_rename_lock);
if (osfd == -1)
pt_MapError(_PR_MD_MAP_OPEN_ERROR, syserrno);
else
{
fd = pt_SetMethods(osfd, PR_DESC_FILE, PR_FALSE, PR_FALSE);
if (fd == NULL) close(osfd); /* $$$ whoops! this is bad $$$ */
}
return fd;
} /* PR_OpenFile */
PR_IMPLEMENT(PRFileDesc*) PR_Open(const char *name, PRIntn flags, PRIntn mode)
{
return PR_OpenFile(name, flags, mode);
} /* PR_Open */
PR_IMPLEMENT(PRStatus) PR_Delete(const char *name)
{
PRIntn rv = -1;
if (!_pr_initialized) _PR_ImplicitInitialization();
if (pt_TestAbort()) return PR_FAILURE;
rv = unlink(name);
if (rv == -1) {
pt_MapError(_PR_MD_MAP_UNLINK_ERROR, errno);
return PR_FAILURE;
} else
return PR_SUCCESS;
} /* PR_Delete */
PR_IMPLEMENT(PRStatus) PR_Access(const char *name, PRAccessHow how)
{
PRIntn rv;
if (pt_TestAbort()) return PR_FAILURE;
switch (how)
{
case PR_ACCESS_READ_OK:
rv = access(name, R_OK);
break;
case PR_ACCESS_WRITE_OK:
rv = access(name, W_OK);
break;
case PR_ACCESS_EXISTS:
default:
rv = access(name, F_OK);
}
if (0 == rv) return PR_SUCCESS;
pt_MapError(_PR_MD_MAP_ACCESS_ERROR, errno);
return PR_FAILURE;
} /* PR_Access */
PR_IMPLEMENT(PRStatus) PR_GetFileInfo(const char *fn, PRFileInfo *info)
{
PRInt32 rv = _PR_MD_GETFILEINFO(fn, info);
return (0 == rv) ? PR_SUCCESS : PR_FAILURE;
} /* PR_GetFileInfo */
PR_IMPLEMENT(PRStatus) PR_GetFileInfo64(const char *fn, PRFileInfo64 *info)
{
PRInt32 rv;
if (!_pr_initialized) _PR_ImplicitInitialization();
rv = _PR_MD_GETFILEINFO64(fn, info);
return (0 == rv) ? PR_SUCCESS : PR_FAILURE;
} /* PR_GetFileInfo64 */
PR_IMPLEMENT(PRStatus) PR_Rename(const char *from, const char *to)
{
PRIntn rv = -1;
if (pt_TestAbort()) return PR_FAILURE;
/*
** We have to acquire a lock here to stiffle anybody trying to create
** a new file at the same time. And we have to hold that lock while we
** test to see if the file exists and do the rename. The other place
** where the lock is held is in PR_Open() when possibly creating a
** new file.
*/
PR_Lock(_pr_rename_lock);
rv = access(to, F_OK);
if (0 == rv)
{
PR_SetError(PR_FILE_EXISTS_ERROR, 0);
rv = -1;
}
else
{
rv = rename(from, to);
if (rv == -1)
pt_MapError(_PR_MD_MAP_RENAME_ERROR, errno);
}
PR_Unlock(_pr_rename_lock);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* PR_Rename */
PR_IMPLEMENT(PRStatus) PR_CloseDir(PRDir *dir)
{
if (pt_TestAbort()) return PR_FAILURE;
if (NULL != dir->md.d)
{
if (closedir(dir->md.d) == -1)
{
_PR_MD_MAP_CLOSEDIR_ERROR(errno);
return PR_FAILURE;
}
dir->md.d = NULL;
PR_DELETE(dir);
}
return PR_SUCCESS;
} /* PR_CloseDir */
PR_IMPLEMENT(PRStatus) PR_MakeDir(const char *name, PRIntn mode)
{
PRInt32 rv = -1;
if (pt_TestAbort()) return PR_FAILURE;
/*
** This lock is used to enforce rename semantics as described
** in PR_Rename.
*/
if (NULL !=_pr_rename_lock)
PR_Lock(_pr_rename_lock);
rv = mkdir(name, mode);
if (-1 == rv)
pt_MapError(_PR_MD_MAP_MKDIR_ERROR, errno);
if (NULL !=_pr_rename_lock)
PR_Unlock(_pr_rename_lock);
return (-1 == rv) ? PR_FAILURE : PR_SUCCESS;
} /* PR_Makedir */
PR_IMPLEMENT(PRStatus) PR_MkDir(const char *name, PRIntn mode)
{
return PR_MakeDir(name, mode);
} /* PR_Mkdir */
PR_IMPLEMENT(PRStatus) PR_RmDir(const char *name)
{
PRInt32 rv;
if (pt_TestAbort()) return PR_FAILURE;
rv = rmdir(name);
if (0 == rv) {
return PR_SUCCESS;
} else {
pt_MapError(_PR_MD_MAP_RMDIR_ERROR, errno);
return PR_FAILURE;
}
} /* PR_Rmdir */
PR_IMPLEMENT(PRDir*) PR_OpenDir(const char *name)
{
DIR *osdir;
PRDir *dir = NULL;
if (pt_TestAbort()) return dir;
osdir = opendir(name);
if (osdir == NULL)
pt_MapError(_PR_MD_MAP_OPENDIR_ERROR, errno);
else
{
dir = PR_NEWZAP(PRDir);
if (dir)
dir->md.d = osdir;
else
(void)closedir(osdir);
}
return dir;
} /* PR_OpenDir */
static PRInt32 _pr_poll_with_poll(
PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout)
{
PRInt32 ready = 0;
/*
* For restarting poll() if it is interrupted by a signal.
* We use these variables to figure out how much time has
* elapsed and how much of the timeout still remains.
*/
PRIntervalTime start, elapsed, remaining;
if (pt_TestAbort()) return -1;
if (0 == npds) PR_Sleep(timeout);
else
{
#define STACK_POLL_DESC_COUNT 64
struct pollfd stack_syspoll[STACK_POLL_DESC_COUNT];
struct pollfd *syspoll;
PRIntn index, msecs;
if (npds <= STACK_POLL_DESC_COUNT)
{
syspoll = stack_syspoll;
}
else
{
PRThread *me = PR_GetCurrentThread();
if (npds > me->syspoll_count)
{
PR_Free(me->syspoll_list);
me->syspoll_list =
(struct pollfd*)PR_MALLOC(npds * sizeof(struct pollfd));
if (NULL == me->syspoll_list)
{
me->syspoll_count = 0;
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
}
me->syspoll_count = npds;
}
syspoll = me->syspoll_list;
}
for (index = 0; index < npds; ++index)
{
PRInt16 in_flags_read = 0, in_flags_write = 0;
PRInt16 out_flags_read = 0, out_flags_write = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags))
{
if (pds[index].in_flags & PR_POLL_READ)
{
in_flags_read = (pds[index].fd->methods->poll)(
pds[index].fd,
pds[index].in_flags & ~PR_POLL_WRITE,
&out_flags_read);
}
if (pds[index].in_flags & PR_POLL_WRITE)
{
in_flags_write = (pds[index].fd->methods->poll)(
pds[index].fd,
pds[index].in_flags & ~PR_POLL_READ,
&out_flags_write);
}
if ((0 != (in_flags_read & out_flags_read))
|| (0 != (in_flags_write & out_flags_write)))
{
/* this one is ready right now */
if (0 == ready)
{
/*
* We will return without calling the system
* poll function. So zero the out_flags
* fields of all the poll descriptors before
* this one.
*/
int i;
for (i = 0; i < index; i++)
{
pds[i].out_flags = 0;
}
}
ready += 1;
pds[index].out_flags = out_flags_read | out_flags_write;
}
else
{
/* now locate the NSPR layer at the bottom of the stack */
PRFileDesc *bottom = PR_GetIdentitiesLayer(
pds[index].fd, PR_NSPR_IO_LAYER);
PR_ASSERT(NULL != bottom); /* what to do about that? */
pds[index].out_flags = 0; /* pre-condition */
if ((NULL != bottom)
&& (_PR_FILEDESC_OPEN == bottom->secret->state))
{
if (0 == ready)
{
syspoll[index].fd = bottom->secret->md.osfd;
syspoll[index].events = 0;
if (in_flags_read & PR_POLL_READ)
{
pds[index].out_flags |=
_PR_POLL_READ_SYS_READ;
syspoll[index].events |= POLLIN;
}
if (in_flags_read & PR_POLL_WRITE)
{
pds[index].out_flags |=
_PR_POLL_READ_SYS_WRITE;
syspoll[index].events |= POLLOUT;
}
if (in_flags_write & PR_POLL_READ)
{
pds[index].out_flags |=
_PR_POLL_WRITE_SYS_READ;
syspoll[index].events |= POLLIN;
}
if (in_flags_write & PR_POLL_WRITE)
{
pds[index].out_flags |=
_PR_POLL_WRITE_SYS_WRITE;
syspoll[index].events |= POLLOUT;
}
if (pds[index].in_flags & PR_POLL_EXCEPT)
syspoll[index].events |= POLLPRI;
}
}
else
{
if (0 == ready)
{
int i;
for (i = 0; i < index; i++)
{
pds[i].out_flags = 0;
}
}
ready += 1; /* this will cause an abrupt return */
pds[index].out_flags = PR_POLL_NVAL; /* bogii */
}
}
}
else
{
/* make poll() ignore this entry */
syspoll[index].fd = -1;
syspoll[index].events = 0;
pds[index].out_flags = 0;
}
}
if (0 == ready)
{
switch (timeout)
{
case PR_INTERVAL_NO_WAIT: msecs = 0; break;
case PR_INTERVAL_NO_TIMEOUT: msecs = -1; break;
default:
msecs = PR_IntervalToMilliseconds(timeout);
start = PR_IntervalNow();
}
retry:
ready = poll(syspoll, npds, msecs);
if (-1 == ready)
{
PRIntn oserror = errno;
if (EINTR == oserror)
{
if (timeout == PR_INTERVAL_NO_TIMEOUT)
goto retry;
else if (timeout == PR_INTERVAL_NO_WAIT)
ready = 0; /* don't retry, just time out */
else
{
elapsed = (PRIntervalTime) (PR_IntervalNow()
- start);
if (elapsed > timeout)
ready = 0; /* timed out */
else
{
remaining = timeout - elapsed;
msecs = PR_IntervalToMilliseconds(remaining);
goto retry;
}
}
}
else
{
_PR_MD_MAP_POLL_ERROR(oserror);
}
}
else if (ready > 0)
{
for (index = 0; index < npds; ++index)
{
PRInt16 out_flags = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags))
{
if (0 != syspoll[index].revents)
{
if (syspoll[index].revents & POLLIN)
{
if (pds[index].out_flags
& _PR_POLL_READ_SYS_READ)
{
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags
& _PR_POLL_WRITE_SYS_READ)
{
out_flags |= PR_POLL_WRITE;
}
}
if (syspoll[index].revents & POLLOUT)
{
if (pds[index].out_flags
& _PR_POLL_READ_SYS_WRITE)
{
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags
& _PR_POLL_WRITE_SYS_WRITE)
{
out_flags |= PR_POLL_WRITE;
}
}
if (syspoll[index].revents & POLLPRI)
out_flags |= PR_POLL_EXCEPT;
if (syspoll[index].revents & POLLERR)
out_flags |= PR_POLL_ERR;
if (syspoll[index].revents & POLLNVAL)
out_flags |= PR_POLL_NVAL;
if (syspoll[index].revents & POLLHUP)
out_flags |= PR_POLL_HUP;
}
}
pds[index].out_flags = out_flags;
}
}
}
}
return ready;
} /* _pr_poll_with_poll */
#if defined(_PR_POLL_WITH_SELECT)
/*
* OSF1 and HPUX report the POLLHUP event for a socket when the
* shutdown(SHUT_WR) operation is called for the remote end, even though
* the socket is still writeable. Use select(), instead of poll(), to
* workaround this problem.
*/
static PRInt32 _pr_poll_with_select(
PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout)
{
PRInt32 ready = 0;
/*
* For restarting select() if it is interrupted by a signal.
* We use these variables to figure out how much time has
* elapsed and how much of the timeout still remains.
*/
PRIntervalTime start, elapsed, remaining;
if (pt_TestAbort()) return -1;
if (0 == npds) PR_Sleep(timeout);
else
{
#define STACK_POLL_DESC_COUNT 64
int stack_selectfd[STACK_POLL_DESC_COUNT];
int *selectfd;
fd_set rd, wr, ex, *rdp = NULL, *wrp = NULL, *exp = NULL;
struct timeval tv, *tvp;
PRIntn index, msecs, maxfd = 0;
if (npds <= STACK_POLL_DESC_COUNT)
{
selectfd = stack_selectfd;
}
else
{
PRThread *me = PR_GetCurrentThread();
if (npds > me->selectfd_count)
{
PR_Free(me->selectfd_list);
me->selectfd_list = (int *)PR_MALLOC(npds * sizeof(int));
if (NULL == me->selectfd_list)
{
me->selectfd_count = 0;
PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
return -1;
}
me->selectfd_count = npds;
}
selectfd = me->selectfd_list;
}
FD_ZERO(&rd);
FD_ZERO(&wr);
FD_ZERO(&ex);
for (index = 0; index < npds; ++index)
{
PRInt16 in_flags_read = 0, in_flags_write = 0;
PRInt16 out_flags_read = 0, out_flags_write = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags))
{
if (pds[index].in_flags & PR_POLL_READ)
{
in_flags_read = (pds[index].fd->methods->poll)(
pds[index].fd,
pds[index].in_flags & ~PR_POLL_WRITE,
&out_flags_read);
}
if (pds[index].in_flags & PR_POLL_WRITE)
{
in_flags_write = (pds[index].fd->methods->poll)(
pds[index].fd,
pds[index].in_flags & ~PR_POLL_READ,
&out_flags_write);
}
if ((0 != (in_flags_read & out_flags_read))
|| (0 != (in_flags_write & out_flags_write)))
{
/* this one is ready right now */
if (0 == ready)
{
/*
* We will return without calling the system
* poll function. So zero the out_flags
* fields of all the poll descriptors before
* this one.
*/
int i;
for (i = 0; i < index; i++)
{
pds[i].out_flags = 0;
}
}
ready += 1;
pds[index].out_flags = out_flags_read | out_flags_write;
}
else
{
/* now locate the NSPR layer at the bottom of the stack */
PRFileDesc *bottom = PR_GetIdentitiesLayer(
pds[index].fd, PR_NSPR_IO_LAYER);
PR_ASSERT(NULL != bottom); /* what to do about that? */
pds[index].out_flags = 0; /* pre-condition */
if ((NULL != bottom)
&& (_PR_FILEDESC_OPEN == bottom->secret->state))
{
if (0 == ready)
{
PRBool add_to_rd = PR_FALSE;
PRBool add_to_wr = PR_FALSE;
PRBool add_to_ex = PR_FALSE;
selectfd[index] = bottom->secret->md.osfd;
if (in_flags_read & PR_POLL_READ)
{
pds[index].out_flags |=
_PR_POLL_READ_SYS_READ;
add_to_rd = PR_TRUE;
}
if (in_flags_read & PR_POLL_WRITE)
{
pds[index].out_flags |=
_PR_POLL_READ_SYS_WRITE;
add_to_wr = PR_TRUE;
}
if (in_flags_write & PR_POLL_READ)
{
pds[index].out_flags |=
_PR_POLL_WRITE_SYS_READ;
add_to_rd = PR_TRUE;
}
if (in_flags_write & PR_POLL_WRITE)
{
pds[index].out_flags |=
_PR_POLL_WRITE_SYS_WRITE;
add_to_wr = PR_TRUE;
}
if (pds[index].in_flags & PR_POLL_EXCEPT)
{
add_to_ex = PR_TRUE;
}
if ((selectfd[index] > maxfd) &&
(add_to_rd || add_to_wr || add_to_ex))
{
maxfd = selectfd[index];
/*
* If maxfd is too large to be used with
* select, fall back to calling poll.
*/
if (maxfd >= FD_SETSIZE)
break;
}
if (add_to_rd)
{
FD_SET(bottom->secret->md.osfd, &rd);
rdp = &rd;
}
if (add_to_wr)
{
FD_SET(bottom->secret->md.osfd, &wr);
wrp = &wr;
}
if (add_to_ex)
{
FD_SET(bottom->secret->md.osfd, &ex);
exp = &ex;
}
}
}
else
{
if (0 == ready)
{
int i;
for (i = 0; i < index; i++)
{
pds[i].out_flags = 0;
}
}
ready += 1; /* this will cause an abrupt return */
pds[index].out_flags = PR_POLL_NVAL; /* bogii */
}
}
}
else
{
pds[index].out_flags = 0;
}
}
if (0 == ready)
{
if (maxfd >= FD_SETSIZE)
{
/*
* maxfd too large to be used with select, fall back to
* calling poll
*/
return(_pr_poll_with_poll(pds, npds, timeout));
}
switch (timeout)
{
case PR_INTERVAL_NO_WAIT:
tv.tv_sec = 0;
tv.tv_usec = 0;
tvp = &tv;
break;
case PR_INTERVAL_NO_TIMEOUT:
tvp = NULL;
break;
default:
msecs = PR_IntervalToMilliseconds(timeout);
tv.tv_sec = msecs/PR_MSEC_PER_SEC;
tv.tv_usec = (msecs % PR_MSEC_PER_SEC) * PR_USEC_PER_MSEC;
tvp = &tv;
start = PR_IntervalNow();
}
retry:
ready = select(maxfd + 1, rdp, wrp, exp, tvp);
if (-1 == ready)
{
PRIntn oserror = errno;
if ((EINTR == oserror) || (EAGAIN == oserror))
{
if (timeout == PR_INTERVAL_NO_TIMEOUT)
goto retry;
else if (timeout == PR_INTERVAL_NO_WAIT)
ready = 0; /* don't retry, just time out */
else
{
elapsed = (PRIntervalTime) (PR_IntervalNow()
- start);
if (elapsed > timeout)
ready = 0; /* timed out */
else
{
remaining = timeout - elapsed;
msecs = PR_IntervalToMilliseconds(remaining);
tv.tv_sec = msecs/PR_MSEC_PER_SEC;
tv.tv_usec = (msecs % PR_MSEC_PER_SEC) *
PR_USEC_PER_MSEC;
goto retry;
}
}
} else if (EBADF == oserror)
{
/* find all the bad fds */
ready = 0;
for (index = 0; index < npds; ++index)
{
pds[index].out_flags = 0;
if ((NULL != pds[index].fd) &&
(0 != pds[index].in_flags))
{
if (fcntl(selectfd[index], F_GETFL, 0) == -1)
{
pds[index].out_flags = PR_POLL_NVAL;
ready++;
}
}
}
} else
_PR_MD_MAP_SELECT_ERROR(oserror);
}
else if (ready > 0)
{
for (index = 0; index < npds; ++index)
{
PRInt16 out_flags = 0;
if ((NULL != pds[index].fd) && (0 != pds[index].in_flags))
{
if (FD_ISSET(selectfd[index], &rd))
{
if (pds[index].out_flags
& _PR_POLL_READ_SYS_READ)
{
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags
& _PR_POLL_WRITE_SYS_READ)
{
out_flags |= PR_POLL_WRITE;
}
}
if (FD_ISSET(selectfd[index], &wr))
{
if (pds[index].out_flags
& _PR_POLL_READ_SYS_WRITE)
{
out_flags |= PR_POLL_READ;
}
if (pds[index].out_flags
& _PR_POLL_WRITE_SYS_WRITE)
{
out_flags |= PR_POLL_WRITE;
}
}
if (FD_ISSET(selectfd[index], &ex))
out_flags |= PR_POLL_EXCEPT;
}
pds[index].out_flags = out_flags;
}
}
}
}
return ready;
} /* _pr_poll_with_select */
#endif /* _PR_POLL_WITH_SELECT */
PR_IMPLEMENT(PRInt32) PR_Poll(
PRPollDesc *pds, PRIntn npds, PRIntervalTime timeout)
{
#if defined(_PR_POLL_WITH_SELECT)
return(_pr_poll_with_select(pds, npds, timeout));
#else
return(_pr_poll_with_poll(pds, npds, timeout));
#endif
}
PR_IMPLEMENT(PRDirEntry*) PR_ReadDir(PRDir *dir, PRDirFlags flags)
{
struct dirent *dp;
if (pt_TestAbort()) return NULL;
for (;;)
{
errno = 0;
dp = readdir(dir->md.d);
if (NULL == dp)
{
pt_MapError(_PR_MD_MAP_READDIR_ERROR, errno);
return NULL;
}
if ((flags & PR_SKIP_DOT)
&& ('.' == dp->d_name[0])
&& (0 == dp->d_name[1])) continue;
if ((flags & PR_SKIP_DOT_DOT)
&& ('.' == dp->d_name[0])
&& ('.' == dp->d_name[1])
&& (0 == dp->d_name[2])) continue;
if ((flags & PR_SKIP_HIDDEN) && ('.' == dp->d_name[0]))
continue;
break;
}
dir->d.name = dp->d_name;
return &dir->d;
} /* PR_ReadDir */
PR_IMPLEMENT(PRFileDesc*) PR_NewUDPSocket(void)
{
PRIntn domain = PF_INET;
return PR_Socket(domain, SOCK_DGRAM, 0);
} /* PR_NewUDPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_NewTCPSocket(void)
{
PRIntn domain = PF_INET;
return PR_Socket(domain, SOCK_STREAM, 0);
} /* PR_NewTCPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_OpenUDPSocket(PRIntn af)
{
return PR_Socket(af, SOCK_DGRAM, 0);
} /* PR_NewUDPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_OpenTCPSocket(PRIntn af)
{
return PR_Socket(af, SOCK_STREAM, 0);
} /* PR_NewTCPSocket */
PR_IMPLEMENT(PRStatus) PR_NewTCPSocketPair(PRFileDesc *fds[2])
{
#ifdef SYMBIAN
/*
* For the platforms that don't have socketpair.
*
* Copied from prsocket.c, with the parameter f[] renamed fds[] and the
* _PR_CONNECT_DOES_NOT_BIND code removed.
*/
PRFileDesc *listenSock;
PRNetAddr selfAddr, peerAddr;
PRUint16 port;
fds[0] = fds[1] = NULL;
listenSock = PR_NewTCPSocket();
if (listenSock == NULL) {
goto failed;
}
PR_InitializeNetAddr(PR_IpAddrLoopback, 0, &selfAddr); /* BugZilla: 35408 */
if (PR_Bind(listenSock, &selfAddr) == PR_FAILURE) {
goto failed;
}
if (PR_GetSockName(listenSock, &selfAddr) == PR_FAILURE) {
goto failed;
}
port = ntohs(selfAddr.inet.port);
if (PR_Listen(listenSock, 5) == PR_FAILURE) {
goto failed;
}
fds[0] = PR_NewTCPSocket();
if (fds[0] == NULL) {
goto failed;
}
PR_InitializeNetAddr(PR_IpAddrLoopback, port, &selfAddr);
/*
* Only a thread is used to do the connect and accept.
* I am relying on the fact that PR_Connect returns
* successfully as soon as the connect request is put
* into the listen queue (but before PR_Accept is called).
* This is the behavior of the BSD socket code. If
* connect does not return until accept is called, we
* will need to create another thread to call connect.
*/
if (PR_Connect(fds[0], &selfAddr, PR_INTERVAL_NO_TIMEOUT)
== PR_FAILURE) {
goto failed;
}
/*
* A malicious local process may connect to the listening
* socket, so we need to verify that the accepted connection
* is made from our own socket fds[0].
*/
if (PR_GetSockName(fds[0], &selfAddr) == PR_FAILURE) {
goto failed;
}
fds[1] = PR_Accept(listenSock, &peerAddr, PR_INTERVAL_NO_TIMEOUT);
if (fds[1] == NULL) {
goto failed;
}
if (peerAddr.inet.port != selfAddr.inet.port) {
/* the connection we accepted is not from fds[0] */
PR_SetError(PR_INSUFFICIENT_RESOURCES_ERROR, 0);
goto failed;
}
PR_Close(listenSock);
return PR_SUCCESS;
failed:
if (listenSock) {
PR_Close(listenSock);
}
if (fds[0]) {
PR_Close(fds[0]);
}
if (fds[1]) {
PR_Close(fds[1]);
}
return PR_FAILURE;
#else
PRInt32 osfd[2];
if (pt_TestAbort()) return PR_FAILURE;
if (socketpair(AF_UNIX, SOCK_STREAM, 0, osfd) == -1) {
pt_MapError(_PR_MD_MAP_SOCKETPAIR_ERROR, errno);
return PR_FAILURE;
}
fds[0] = pt_SetMethods(osfd[0], PR_DESC_SOCKET_TCP, PR_FALSE, PR_FALSE);
if (fds[0] == NULL) {
close(osfd[0]);
close(osfd[1]);
return PR_FAILURE;
}
fds[1] = pt_SetMethods(osfd[1], PR_DESC_SOCKET_TCP, PR_FALSE, PR_FALSE);
if (fds[1] == NULL) {
PR_Close(fds[0]);
close(osfd[1]);
return PR_FAILURE;
}
return PR_SUCCESS;
#endif
} /* PR_NewTCPSocketPair */
PR_IMPLEMENT(PRStatus) PR_CreatePipe(
PRFileDesc **readPipe,
PRFileDesc **writePipe
)
{
int pipefd[2];
if (pt_TestAbort()) return PR_FAILURE;
if (pipe(pipefd) == -1)
{
/* XXX map pipe error */
PR_SetError(PR_UNKNOWN_ERROR, errno);
return PR_FAILURE;
}
*readPipe = pt_SetMethods(pipefd[0], PR_DESC_PIPE, PR_FALSE, PR_FALSE);
if (NULL == *readPipe)
{
close(pipefd[0]);
close(pipefd[1]);
return PR_FAILURE;
}
*writePipe = pt_SetMethods(pipefd[1], PR_DESC_PIPE, PR_FALSE, PR_FALSE);
if (NULL == *writePipe)
{
PR_Close(*readPipe);
close(pipefd[1]);
return PR_FAILURE;
}
return PR_SUCCESS;
}
/*
** Set the inheritance attribute of a file descriptor.
*/
PR_IMPLEMENT(PRStatus) PR_SetFDInheritable(
PRFileDesc *fd,
PRBool inheritable)
{
/*
* Only a non-layered, NSPR file descriptor can be inherited
* by a child process.
*/
if (fd->identity != PR_NSPR_IO_LAYER)
{
PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
return PR_FAILURE;
}
if (fd->secret->inheritable != inheritable)
{
if (fcntl(fd->secret->md.osfd, F_SETFD,
inheritable ? 0 : FD_CLOEXEC) == -1)
{
_PR_MD_MAP_DEFAULT_ERROR(errno);
return PR_FAILURE;
}
fd->secret->inheritable = (_PRTriStateBool) inheritable;
}
return PR_SUCCESS;
}
/*****************************************************************************/
/***************************** I/O friends methods ***************************/
/*****************************************************************************/
PR_IMPLEMENT(PRFileDesc*) PR_ImportFile(PRInt32 osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = pt_SetMethods(osfd, PR_DESC_FILE, PR_FALSE, PR_TRUE);
if (NULL == fd) close(osfd);
return fd;
} /* PR_ImportFile */
PR_IMPLEMENT(PRFileDesc*) PR_ImportPipe(PRInt32 osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = pt_SetMethods(osfd, PR_DESC_PIPE, PR_FALSE, PR_TRUE);
if (NULL == fd) close(osfd);
return fd;
} /* PR_ImportPipe */
PR_IMPLEMENT(PRFileDesc*) PR_ImportTCPSocket(PRInt32 osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = pt_SetMethods(osfd, PR_DESC_SOCKET_TCP, PR_FALSE, PR_TRUE);
if (NULL == fd) close(osfd);
#ifdef _PR_NEED_SECRET_AF
if (NULL != fd) fd->secret->af = PF_INET;
#endif
return fd;
} /* PR_ImportTCPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_ImportUDPSocket(PRInt32 osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = pt_SetMethods(osfd, PR_DESC_SOCKET_UDP, PR_FALSE, PR_TRUE);
if (NULL != fd) close(osfd);
return fd;
} /* PR_ImportUDPSocket */
PR_IMPLEMENT(PRFileDesc*) PR_CreateSocketPollFd(PRInt32 osfd)
{
PRFileDesc *fd;
if (!_pr_initialized) _PR_ImplicitInitialization();
fd = _PR_Getfd();
if (fd == NULL) PR_SetError(PR_OUT_OF_MEMORY_ERROR, 0);
else
{
fd->secret->md.osfd = osfd;
fd->secret->inheritable = _PR_TRI_FALSE;
fd->secret->state = _PR_FILEDESC_OPEN;
fd->methods = PR_GetSocketPollFdMethods();
}
return fd;
} /* PR_CreateSocketPollFD */
PR_IMPLEMENT(PRStatus) PR_DestroySocketPollFd(PRFileDesc *fd)
{
if (NULL == fd)
{
PR_SetError(PR_BAD_DESCRIPTOR_ERROR, 0);
return PR_FAILURE;
}
fd->secret->state = _PR_FILEDESC_CLOSED;
_PR_Putfd(fd);
return PR_SUCCESS;
} /* PR_DestroySocketPollFd */
PR_IMPLEMENT(PRInt32) PR_FileDesc2NativeHandle(PRFileDesc *bottom)
{
PRInt32 osfd = -1;
bottom = (NULL == bottom) ?
NULL : PR_GetIdentitiesLayer(bottom, PR_NSPR_IO_LAYER);
if (NULL == bottom) PR_SetError(PR_INVALID_ARGUMENT_ERROR, 0);
else osfd = bottom->secret->md.osfd;
return osfd;
} /* PR_FileDesc2NativeHandle */
PR_IMPLEMENT(void) PR_ChangeFileDescNativeHandle(PRFileDesc *fd,
PRInt32 handle)
{
if (fd) fd->secret->md.osfd = handle;
} /* PR_ChangeFileDescNativeHandle*/
PR_IMPLEMENT(PRStatus) PR_LockFile(PRFileDesc *fd)
{
PRStatus status = PR_SUCCESS;
if (pt_TestAbort()) return PR_FAILURE;
PR_Lock(_pr_flock_lock);
while (-1 == fd->secret->lockCount)
PR_WaitCondVar(_pr_flock_cv, PR_INTERVAL_NO_TIMEOUT);
if (0 == fd->secret->lockCount)
{
fd->secret->lockCount = -1;
PR_Unlock(_pr_flock_lock);
status = _PR_MD_LOCKFILE(fd->secret->md.osfd);
PR_Lock(_pr_flock_lock);
fd->secret->lockCount = (PR_SUCCESS == status) ? 1 : 0;
PR_NotifyAllCondVar(_pr_flock_cv);
}
else
{
fd->secret->lockCount += 1;
}
PR_Unlock(_pr_flock_lock);
return status;
} /* PR_LockFile */
PR_IMPLEMENT(PRStatus) PR_TLockFile(PRFileDesc *fd)
{
PRStatus status = PR_SUCCESS;
if (pt_TestAbort()) return PR_FAILURE;
PR_Lock(_pr_flock_lock);
if (0 == fd->secret->lockCount)
{
status = _PR_MD_TLOCKFILE(fd->secret->md.osfd);
if (PR_SUCCESS == status) fd->secret->lockCount = 1;
}
else fd->secret->lockCount += 1;
PR_Unlock(_pr_flock_lock);
return status;
} /* PR_TLockFile */
PR_IMPLEMENT(PRStatus) PR_UnlockFile(PRFileDesc *fd)
{
PRStatus status = PR_SUCCESS;
if (pt_TestAbort()) return PR_FAILURE;
PR_Lock(_pr_flock_lock);
if (fd->secret->lockCount == 1)
{
status = _PR_MD_UNLOCKFILE(fd->secret->md.osfd);
if (PR_SUCCESS == status) fd->secret->lockCount = 0;
}
else fd->secret->lockCount -= 1;
PR_Unlock(_pr_flock_lock);
return status;
}
/*
* The next two entry points should not be in the API, but they are
* defined here for historical (or hysterical) reasons.
*/
PR_IMPLEMENT(PRInt32) PR_GetSysfdTableMax(void)
{
#if defined(AIX) || defined(SYMBIAN)
return sysconf(_SC_OPEN_MAX);
#else
struct rlimit rlim;
if ( getrlimit(RLIMIT_NOFILE, &rlim) < 0)
return -1;
return rlim.rlim_max;
#endif
}
PR_IMPLEMENT(PRInt32) PR_SetSysfdTableSize(PRIntn table_size)
{
#if defined(AIX) || defined(SYMBIAN)
return -1;
#else
struct rlimit rlim;
PRInt32 tableMax = PR_GetSysfdTableMax();
if (tableMax < 0) return -1;
rlim.rlim_max = tableMax;
/* Grow as much as we can; even if too big */
if ( rlim.rlim_max < table_size )
rlim.rlim_cur = rlim.rlim_max;
else
rlim.rlim_cur = table_size;
if ( setrlimit(RLIMIT_NOFILE, &rlim) < 0)
return -1;
return rlim.rlim_cur;
#endif
}
/*
* PR_Stat is supported for backward compatibility; some existing Java
* code uses it. New code should use PR_GetFileInfo.
*/
#ifndef NO_NSPR_10_SUPPORT
PR_IMPLEMENT(PRInt32) PR_Stat(const char *name, struct stat *buf)
{
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_Stat", "PR_GetFileInfo");
if (pt_TestAbort()) return -1;
if (-1 == stat(name, buf)) {
pt_MapError(_PR_MD_MAP_STAT_ERROR, errno);
return -1;
} else {
return 0;
}
}
#endif /* ! NO_NSPR_10_SUPPORT */
PR_IMPLEMENT(void) PR_FD_ZERO(PR_fd_set *set)
{
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_ZERO (PR_Select)", "PR_Poll");
memset(set, 0, sizeof(PR_fd_set));
}
PR_IMPLEMENT(void) PR_FD_SET(PRFileDesc *fh, PR_fd_set *set)
{
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_SET (PR_Select)", "PR_Poll");
PR_ASSERT( set->hsize < PR_MAX_SELECT_DESC );
set->harray[set->hsize++] = fh;
}
PR_IMPLEMENT(void) PR_FD_CLR(PRFileDesc *fh, PR_fd_set *set)
{
PRUint32 index, index2;
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_CLR (PR_Select)", "PR_Poll");
for (index = 0; index<set->hsize; index++)
if (set->harray[index] == fh) {
for (index2=index; index2 < (set->hsize-1); index2++) {
set->harray[index2] = set->harray[index2+1];
}
set->hsize--;
break;
}
}
PR_IMPLEMENT(PRInt32) PR_FD_ISSET(PRFileDesc *fh, PR_fd_set *set)
{
PRUint32 index;
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_ISSET (PR_Select)", "PR_Poll");
for (index = 0; index<set->hsize; index++)
if (set->harray[index] == fh) {
return 1;
}
return 0;
}
PR_IMPLEMENT(void) PR_FD_NSET(PRInt32 fd, PR_fd_set *set)
{
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_NSET (PR_Select)", "PR_Poll");
PR_ASSERT( set->nsize < PR_MAX_SELECT_DESC );
set->narray[set->nsize++] = fd;
}
PR_IMPLEMENT(void) PR_FD_NCLR(PRInt32 fd, PR_fd_set *set)
{
PRUint32 index, index2;
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_NCLR (PR_Select)", "PR_Poll");
for (index = 0; index<set->nsize; index++)
if (set->narray[index] == fd) {
for (index2=index; index2 < (set->nsize-1); index2++) {
set->narray[index2] = set->narray[index2+1];
}
set->nsize--;
break;
}
}
PR_IMPLEMENT(PRInt32) PR_FD_NISSET(PRInt32 fd, PR_fd_set *set)
{
PRUint32 index;
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete("PR_FD_NISSET (PR_Select)", "PR_Poll");
for (index = 0; index<set->nsize; index++)
if (set->narray[index] == fd) {
return 1;
}
return 0;
}
#include <sys/types.h>
#include <sys/time.h>
#if !defined(SUNOS4) && !defined(HPUX) \
&& !defined(LINUX) && !defined(__GNU__) && !defined(__GLIBC__)
#include <sys/select.h>
#endif
static PRInt32
_PR_getset(PR_fd_set *pr_set, fd_set *set)
{
PRUint32 index;
PRInt32 max = 0;
if (!pr_set)
return 0;
FD_ZERO(set);
/* First set the pr file handle osfds */
for (index=0; index<pr_set->hsize; index++) {
FD_SET(pr_set->harray[index]->secret->md.osfd, set);
if (pr_set->harray[index]->secret->md.osfd > max)
max = pr_set->harray[index]->secret->md.osfd;
}
/* Second set the native osfds */
for (index=0; index<pr_set->nsize; index++) {
FD_SET(pr_set->narray[index], set);
if (pr_set->narray[index] > max)
max = pr_set->narray[index];
}
return max;
}
static void
_PR_setset(PR_fd_set *pr_set, fd_set *set)
{
PRUint32 index, last_used;
if (!pr_set)
return;
for (last_used=0, index=0; index<pr_set->hsize; index++) {
if ( FD_ISSET(pr_set->harray[index]->secret->md.osfd, set) ) {
pr_set->harray[last_used++] = pr_set->harray[index];
}
}
pr_set->hsize = last_used;
for (last_used=0, index=0; index<pr_set->nsize; index++) {
if ( FD_ISSET(pr_set->narray[index], set) ) {
pr_set->narray[last_used++] = pr_set->narray[index];
}
}
pr_set->nsize = last_used;
}
PR_IMPLEMENT(PRInt32) PR_Select(
PRInt32 unused, PR_fd_set *pr_rd, PR_fd_set *pr_wr,
PR_fd_set *pr_ex, PRIntervalTime timeout)
{
fd_set rd, wr, ex;
struct timeval tv, *tvp;
PRInt32 max, max_fd;
PRInt32 rv;
/*
* For restarting select() if it is interrupted by a Unix signal.
* We use these variables to figure out how much time has elapsed
* and how much of the timeout still remains.
*/
PRIntervalTime start, elapsed, remaining;
static PRBool unwarned = PR_TRUE;
if (unwarned) unwarned = _PR_Obsolete( "PR_Select", "PR_Poll");
FD_ZERO(&rd);
FD_ZERO(&wr);
FD_ZERO(&ex);
max_fd = _PR_getset(pr_rd, &rd);
max_fd = (max = _PR_getset(pr_wr, &wr))>max_fd?max:max_fd;
max_fd = (max = _PR_getset(pr_ex, &ex))>max_fd?max:max_fd;
if (timeout == PR_INTERVAL_NO_TIMEOUT) {
tvp = NULL;
} else {
tv.tv_sec = (PRInt32)PR_IntervalToSeconds(timeout);
tv.tv_usec = (PRInt32)PR_IntervalToMicroseconds(
timeout - PR_SecondsToInterval(tv.tv_sec));
tvp = &tv;
start = PR_IntervalNow();
}
retry:
rv = select(max_fd + 1, (_PRSelectFdSetArg_t) &rd,
(_PRSelectFdSetArg_t) &wr, (_PRSelectFdSetArg_t) &ex, tvp);
if (rv == -1 && errno == EINTR) {
if (timeout == PR_INTERVAL_NO_TIMEOUT) {
goto retry;
} else {
elapsed = (PRIntervalTime) (PR_IntervalNow() - start);
if (elapsed > timeout) {
rv = 0; /* timed out */
} else {
remaining = timeout - elapsed;
tv.tv_sec = (PRInt32)PR_IntervalToSeconds(remaining);
tv.tv_usec = (PRInt32)PR_IntervalToMicroseconds(
remaining - PR_SecondsToInterval(tv.tv_sec));
goto retry;
}
}
}
if (rv > 0) {
_PR_setset(pr_rd, &rd);
_PR_setset(pr_wr, &wr);
_PR_setset(pr_ex, &ex);
} else if (rv == -1) {
pt_MapError(_PR_MD_MAP_SELECT_ERROR, errno);
}
return rv;
}
#endif /* defined(_PR_PTHREADS) */
#ifdef MOZ_UNICODE
/* ================ UTF16 Interfaces ================================ */
PR_IMPLEMENT(PRFileDesc*) PR_OpenFileUTF16(
const PRUnichar *name, PRIntn flags, PRIntn mode)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PR_IMPLEMENT(PRStatus) PR_CloseDirUTF16(PRDir *dir)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
PR_IMPLEMENT(PRDirUTF16*) PR_OpenDirUTF16(const PRUnichar *name)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PR_IMPLEMENT(PRDirEntryUTF16*) PR_ReadDirUTF16(PRDirUTF16 *dir, PRDirFlags flags)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return NULL;
}
PR_IMPLEMENT(PRStatus) PR_GetFileInfo64UTF16(const PRUnichar *fn, PRFileInfo64 *info)
{
PR_SetError(PR_NOT_IMPLEMENTED_ERROR, 0);
return PR_FAILURE;
}
/* ================ UTF16 Interfaces ================================ */
#endif /* MOZ_UNICODE */
/* ptio.c */