| /* Copyright (C) 1994,96,97,2002 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, write to the Free |
| Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA |
| 02111-1307 USA. */ |
| |
| /* Declare the few Mach system calls (except mach_msg, in <mach/message.h>). |
| This does not include the kernel RPC shortcut calls (in <mach-shortcuts.h>). |
| |
| This file omits the MACH_IPC_COMPAT functions. */ |
| |
| #ifndef _MACH_MACH_TRAPS_H |
| |
| #define _MACH_MACH_TRAPS_H_ 1 |
| |
| #include <mach/port.h> |
| #include <mach/message.h> /* mach_msg_timeout_t */ |
| #include <mach/kern_return.h> |
| |
| /* Create and return a new receive right. */ |
| extern mach_port_t mach_reply_port (void); |
| extern mach_port_t __mach_reply_port (void); |
| |
| /* Return the thread control port for the calling thread. */ |
| extern mach_port_t mach_thread_self (void); |
| extern mach_port_t __mach_thread_self (void); |
| |
| /* Return the task control port for the calling task. |
| The parens are needed to protect against the macro in <mach_init.h>. */ |
| extern mach_port_t (mach_task_self) (void); |
| extern mach_port_t (__mach_task_self) (void); |
| |
| /* Return the host information port for the host of the calling task. */ |
| extern mach_port_t mach_host_self (void); |
| extern mach_port_t __mach_host_self (void); |
| |
| /* Attempt to context switch the current thread off the processor. Returns |
| true if there are other threads that can be run and false if not. */ |
| extern boolean_t swtch (void); |
| extern boolean_t __swtch (void); |
| |
| /* Attempt to context switch the current thread off the processor. Lower |
| the thread's priority as much as possible. The thread's priority will |
| be restored when it runs again. PRIORITY is currently unused. Return |
| true if there are other threads that can be run and false if not. */ |
| extern boolean_t swtch_pri (int priority); |
| extern boolean_t __swtch_pri (int priority); |
| |
| /* Attempt to context switch the current thread of the processor. Try |
| to run NEW_THREAD next, ignoring normal scheduling policies. The |
| OPTION value comes from <mach/thread_switch.h>. If OPTION is |
| SWITCH_OPTION_WAIT, then block the current thread for TIME |
| milliseconds. If OPTION is SWITCH_OPTION_DEPRESS, then block for |
| TIME milliseconds and depress the thread's priority as done by |
| swtch_pri. If OPTION is SWITCH_OPTION_NONE, ignore TIME. */ |
| kern_return_t thread_switch (mach_port_t new_thread, |
| int option, mach_msg_timeout_t option_time); |
| kern_return_t __thread_switch (mach_port_t new_thread, |
| int option, mach_msg_timeout_t option_time); |
| |
| /* Block the current thread until the kernel (or device) event |
| identified by EVENT occurs. */ |
| kern_return_t evc_wait (unsigned int event); |
| kern_return_t __evc_wait (unsigned int event); |
| |
| |
| #endif /* mach/mach_traps.h */ |