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Diffstat (limited to 'mach/mach/mach_traps.h')
-rw-r--r-- | mach/mach/mach_traps.h | 76 |
1 files changed, 76 insertions, 0 deletions
diff --git a/mach/mach/mach_traps.h b/mach/mach/mach_traps.h new file mode 100644 index 0000000000..e741e16996 --- /dev/null +++ b/mach/mach/mach_traps.h @@ -0,0 +1,76 @@ +/* Copyright (C) 1994 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 Library General Public License as +published by the Free Software Foundation; either version 2 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with the GNU C Library; see the file COPYING.LIB. If +not, write to the Free Software Foundation, Inc., 675 Mass Ave, +Cambridge, MA 02139, 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> + + +/* 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 rpocessor. 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, int time); +kern_return_t __thread_switch (mach_port_t new_thread, int option, int 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 */ |