/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifdef WIN32
#include <windows.h>
#endif

#ifdef XP_UNIX
#include <unistd.h>  /* for close() */
#endif

#include "prinit.h"
#include "prio.h"
#include "prlog.h"
#include "prprf.h"
#include "prnetdb.h"

#include "private/pprio.h"

#define CLIENT_LOOPS    5
#define BUF_SIZE        128

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

#ifdef WINCE

int main(int argc, char **argv)
{
    fprintf(stderr, "Invalid/Broken Test for WinCE/WinMobile\n");
    exit(1);
}

#else

static void
clientThreadFunc(void *arg)
{
    PRUint16 port = (PRUint16) arg;
    PRFileDesc *sock;
    PRNetAddr addr;
    char buf[BUF_SIZE];
    int i;

    addr.inet.family = PR_AF_INET;
    addr.inet.port = PR_htons(port);
    addr.inet.ip = PR_htonl(PR_INADDR_LOOPBACK);
    PR_snprintf(buf, sizeof(buf), "%hu", port);

    for (i = 0; i < 5; i++) {
        sock = PR_NewTCPSocket();
        PR_Connect(sock, &addr, PR_INTERVAL_NO_TIMEOUT);

        PR_Write(sock, buf, sizeof(buf));
        PR_Close(sock);
    }
}

int main(int argc, char **argv)
{
    PRFileDesc *listenSock1, *listenSock2;
    PRFileDesc *badFD;
    PRUint16 listenPort1, listenPort2;
    PRNetAddr addr;
    char buf[BUF_SIZE];
    PRThread *clientThread;
    PRPollDesc pds0[10], pds1[10], *pds, *other_pds;
    PRIntn npds;
    PRInt32 retVal;
    PRInt32 rv;
    PROsfd sd;
    struct sockaddr_in saddr;
    PRIntn saddr_len;
    PRUint16 listenPort3;
    PRFileDesc *socket_poll_fd;
    PRIntn i, j;

    PR_Init(PR_USER_THREAD, PR_PRIORITY_NORMAL, 0);
    PR_STDIO_INIT();

    printf("This program tests PR_Poll with sockets.\n");
    printf("Timeout, error reporting, and normal operation are tested.\n\n");

    /* Create two listening sockets */
    if ((listenSock1 = PR_NewTCPSocket()) == NULL) {
        fprintf(stderr, "Can't create a new TCP socket\n");
        exit(1);
    }
    addr.inet.family = PR_AF_INET;
    addr.inet.ip = PR_htonl(PR_INADDR_ANY);
    addr.inet.port = PR_htons(0);
    if (PR_Bind(listenSock1, &addr) == PR_FAILURE) {
        fprintf(stderr, "Can't bind socket\n");
        exit(1);
    }
    if (PR_GetSockName(listenSock1, &addr) == PR_FAILURE) {
        fprintf(stderr, "PR_GetSockName failed\n");
        exit(1);
    }
    listenPort1 = PR_ntohs(addr.inet.port);
    if (PR_Listen(listenSock1, 5) == PR_FAILURE) {
        fprintf(stderr, "Can't listen on a socket\n");
        exit(1);
    }

    if ((listenSock2  = PR_NewTCPSocket()) == NULL) {
        fprintf(stderr, "Can't create a new TCP socket\n");
        exit(1);
    }
    addr.inet.family = PR_AF_INET;
    addr.inet.ip = PR_htonl(PR_INADDR_ANY);
    addr.inet.port = PR_htons(0);
    if (PR_Bind(listenSock2, &addr) == PR_FAILURE) {
        fprintf(stderr, "Can't bind socket\n");
        exit(1);
    }
    if (PR_GetSockName(listenSock2, &addr) == PR_FAILURE) {
        fprintf(stderr, "PR_GetSockName failed\n");
        exit(1);
    }
    listenPort2 = PR_ntohs(addr.inet.port);
    if (PR_Listen(listenSock2, 5) == PR_FAILURE) {
        fprintf(stderr, "Can't listen on a socket\n");
        exit(1);
    }
    /* Set up the poll descriptor array */
    pds = pds0;
    other_pds = pds1;
    memset(pds, 0, sizeof(pds));
    npds = 0;
    pds[npds].fd = listenSock1;
    pds[npds].in_flags = PR_POLL_READ;
    npds++;
    pds[npds].fd = listenSock2;
    pds[npds].in_flags = PR_POLL_READ;
    npds++;

    sd = socket(AF_INET, SOCK_STREAM, 0);
    PR_ASSERT(sd >= 0);
    memset((char *) &saddr, 0, sizeof(saddr));
    saddr.sin_family = AF_INET;
    saddr.sin_addr.s_addr = htonl(INADDR_ANY);
    saddr.sin_port = htons(0);

    rv = bind(sd, (struct sockaddr *)&saddr, sizeof(saddr));
    PR_ASSERT(rv == 0);
    saddr_len = sizeof(saddr);
    rv = getsockname(sd, (struct sockaddr *) &saddr, &saddr_len);
    PR_ASSERT(rv == 0);
    listenPort3 = ntohs(saddr.sin_port);

    rv = listen(sd, 5);
    PR_ASSERT(rv == 0);
    pds[npds].fd = socket_poll_fd = PR_CreateSocketPollFd(sd);
    PR_ASSERT(pds[npds].fd);
    pds[npds].in_flags = PR_POLL_READ;
    npds++;
    PR_snprintf(buf, sizeof(buf),
                "The server thread is listening on ports %hu, %hu and %hu\n\n",
                listenPort1, listenPort2, listenPort3);
    printf("%s", buf);

    /* Testing timeout */
    printf("PR_Poll should time out in 5 seconds\n");
    retVal = PR_Poll(pds, npds, PR_SecondsToInterval(5));
    if (retVal != 0) {
        PR_snprintf(buf, sizeof(buf),
                    "PR_Poll should time out and return 0, but it returns %ld\n",
                    retVal);
        fprintf(stderr, "%s", buf);
        exit(1);
    }
    printf("PR_Poll timed out.  Test passed.\n\n");

    /* Testing bad fd */
    printf("PR_Poll should detect a bad file descriptor\n");
    if ((badFD = PR_NewTCPSocket()) == NULL) {
        fprintf(stderr, "Can't create a TCP socket\n");
        exit(1);
    }

    pds[npds].fd = badFD;
    pds[npds].in_flags = PR_POLL_READ;
    npds++;
    PR_Close(badFD);  /* make the fd bad */
#if 0
    retVal = PR_Poll(pds, npds, PR_INTERVAL_NO_TIMEOUT);
    if (retVal != 1 || (unsigned short) pds[2].out_flags != PR_POLL_NVAL) {
        fprintf(stderr, "Failed to detect the bad fd: "
                "PR_Poll returns %d, out_flags is 0x%hx\n",
                retVal, pds[npds - 1].out_flags);
        exit(1);
    }
    printf("PR_Poll detected the bad fd.  Test passed.\n\n");
#endif
    npds--;

    clientThread = PR_CreateThread(PR_USER_THREAD,
                                   clientThreadFunc, (void *) listenPort1,
                                   PR_PRIORITY_NORMAL, PR_LOCAL_THREAD,
                                   PR_UNJOINABLE_THREAD, 0);
    if (clientThread == NULL) {
        fprintf(stderr, "can't create thread\n");
        exit(1);
    }

    clientThread = PR_CreateThread(PR_USER_THREAD,
                                   clientThreadFunc, (void *) listenPort2,
                                   PR_PRIORITY_NORMAL, PR_GLOBAL_THREAD,
                                   PR_UNJOINABLE_THREAD, 0);
    if (clientThread == NULL) {
        fprintf(stderr, "can't create thread\n");
        exit(1);
    }

    clientThread = PR_CreateThread(PR_USER_THREAD,
                                   clientThreadFunc, (void *) listenPort3,
                                   PR_PRIORITY_NORMAL, PR_GLOBAL_BOUND_THREAD,
                                   PR_UNJOINABLE_THREAD, 0);
    if (clientThread == NULL) {
        fprintf(stderr, "can't create thread\n");
        exit(1);
    }


    printf("Three client threads are created.  Each of them will\n");
    printf("send data to one of the three ports the server is listening on.\n");
    printf("The data they send is the port number.  Each of them send\n");
    printf("the data five times, so you should see ten lines below,\n");
    printf("interleaved in an arbitrary order.\n");

    /* 30 events total */
    i = 0;
    while (i < 30) {
        PRPollDesc *tmp;
        int nextIndex;
        int nEvents = 0;

        retVal = PR_Poll(pds, npds, PR_INTERVAL_NO_TIMEOUT);
        PR_ASSERT(retVal != 0);  /* no timeout */
        if (retVal == -1) {
            fprintf(stderr, "PR_Poll failed\n");
            exit(1);
        }

        nextIndex = 3;
        /* the three listening sockets */
        for (j = 0; j < 3; j++) {
            other_pds[j] = pds[j];
            PR_ASSERT((pds[j].out_flags & PR_POLL_WRITE) == 0
                      && (pds[j].out_flags & PR_POLL_EXCEPT) == 0);
            if (pds[j].out_flags & PR_POLL_READ) {
                PRFileDesc *sock;

                nEvents++;
                if (j == 2) {
                    PROsfd newsd;
                    newsd = accept(PR_FileDesc2NativeHandle(pds[j].fd), NULL, 0);
                    if (newsd == -1) {
                        fprintf(stderr, "accept() failed\n");
                        exit(1);
                    }
                    other_pds[nextIndex].fd  = PR_CreateSocketPollFd(newsd);
                    PR_ASSERT(other_pds[nextIndex].fd);
                    other_pds[nextIndex].in_flags = PR_POLL_READ;
                } else {
                    sock = PR_Accept(pds[j].fd, NULL, PR_INTERVAL_NO_TIMEOUT);
                    if (sock == NULL) {
                        fprintf(stderr, "PR_Accept() failed\n");
                        exit(1);
                    }
                    other_pds[nextIndex].fd = sock;
                    other_pds[nextIndex].in_flags = PR_POLL_READ;
                }
                nextIndex++;
            } else if (pds[j].out_flags & PR_POLL_ERR) {
                fprintf(stderr, "PR_Poll() indicates that an fd has error\n");
                exit(1);
            } else if (pds[j].out_flags & PR_POLL_NVAL) {
                fprintf(stderr, "PR_Poll() indicates that fd %d is invalid\n",
                        PR_FileDesc2NativeHandle(pds[j].fd));
                exit(1);
            }
        }

        for (j = 3; j < npds; j++) {
            PR_ASSERT((pds[j].out_flags & PR_POLL_WRITE) == 0
                      && (pds[j].out_flags & PR_POLL_EXCEPT) == 0);
            if (pds[j].out_flags & PR_POLL_READ) {
                PRInt32 nBytes;

                nEvents++;
                /* XXX: This call is a hack and should be fixed */
                if (PR_GetDescType(pds[j].fd) == (PRDescType) 0) {
                    nBytes = recv(PR_FileDesc2NativeHandle(pds[j].fd), buf,
                                  sizeof(buf), 0);
                    if (nBytes == -1) {
                        fprintf(stderr, "recv() failed\n");
                        exit(1);
                    }
                    printf("Server read %d bytes from native fd %d\n",nBytes,
                           PR_FileDesc2NativeHandle(pds[j].fd));
#ifdef WIN32
                    closesocket((SOCKET)PR_FileDesc2NativeHandle(pds[j].fd));
#else
                    close(PR_FileDesc2NativeHandle(pds[j].fd));
#endif
                    PR_DestroySocketPollFd(pds[j].fd);
                } else {
                    nBytes = PR_Read(pds[j].fd, buf, sizeof(buf));
                    if (nBytes == -1) {
                        fprintf(stderr, "PR_Read() failed\n");
                        exit(1);
                    }
                    PR_Close(pds[j].fd);
                }
                /* Just to be safe */
                buf[BUF_SIZE - 1] = '\0';
                printf("The server received \"%s\" from a client\n", buf);
            } else if (pds[j].out_flags & PR_POLL_ERR) {
                fprintf(stderr, "PR_Poll() indicates that an fd has error\n");
                exit(1);
            } else if (pds[j].out_flags & PR_POLL_NVAL) {
                fprintf(stderr, "PR_Poll() indicates that an fd is invalid\n");
                exit(1);
            } else {
                other_pds[nextIndex] = pds[j];
                nextIndex++;
            }
        }

        PR_ASSERT(retVal == nEvents);
        /* swap */
        tmp = pds;
        pds = other_pds;
        other_pds = tmp;
        npds = nextIndex;
        i += nEvents;
    }
    PR_DestroySocketPollFd(socket_poll_fd);

    printf("All tests finished\n");
    PR_Cleanup();
    return 0;
}


#endif   /* ifdef WINCE */