X-Git-Url: https://oss.titaniummirror.com/gitweb?a=blobdiff_plain;f=libobjc%2Fthr-dce.c;fp=libobjc%2Fthr-dce.c;h=0000000000000000000000000000000000000000;hb=6fed43773c9b0ce596dca5686f37ac3fc0fa11c0;hp=3fa5b9b1b3edbfc04bf464038db49ac8c813ef6b;hpb=27b11d56b743098deb193d510b337ba22dc52e5c;p=msp430-gcc.git diff --git a/libobjc/thr-dce.c b/libobjc/thr-dce.c deleted file mode 100644 index 3fa5b9b1..00000000 --- a/libobjc/thr-dce.c +++ /dev/null @@ -1,281 +0,0 @@ -/* GNU Objective C Runtime Thread Interface - Copyright (C) 1996, 1997 Free Software Foundation, Inc. - Contributed by Galen C. Hunt (gchunt@cs.rochester.edu) - -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify it under the -terms of the GNU General Public License as published by the Free Software -Foundation; either version 2, or (at your option) any later version. - -GNU CC 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 General Public License for more -details. - -You should have received a copy of the GNU General Public License along with -GNU CC; see the file COPYING. If not, write to the Free Software -Foundation, 59 Temple Place - Suite 330, -Boston, MA 02111-1307, USA. */ - -/* As a special exception, if you link this library with files compiled with - GCC to produce an executable, this does not cause the resulting executable - to be covered by the GNU General Public License. This exception does not - however invalidate any other reasons why the executable file might be - covered by the GNU General Public License. */ - -#include -#include -#include "runtime.h" - -/* Key structure for maintaining thread specific storage */ -static pthread_key_t _objc_thread_storage; - -/* Backend initialization functions */ - -/* Initialize the threads subsystem. */ -int -__objc_init_thread_system(void) -{ - /* Initialize the thread storage key */ - return pthread_keycreate(&_objc_thread_storage, NULL); -} - -/* Close the threads subsystem. */ -int -__objc_close_thread_system(void) -{ - /* Destroy the thread storage key */ - /* Not implemented yet */ - /* return pthread_key_delete(&_objc_thread_storage); */ - return 0; -} - -/* Backend thread functions */ - -/* Create a new thread of execution. */ -objc_thread_t -__objc_thread_detach(void (*func)(void *arg), void *arg) -{ - objc_thread_t thread_id; - pthread_t new_thread_handle; - - if (pthread_create(&new_thread_handle, pthread_attr_default, - (void *)func, arg) == 0) - { - /* ??? May not work! (64bit) */ - thread_id = *(objc_thread_t *)&new_thread_handle; - pthread_detach(&new_thread_handle); /* Fully detach thread. */ - } - else - thread_id = NULL; - - return thread_id; -} - -/* Set the current thread's priority. */ -int -__objc_thread_set_priority(int priority) -{ - int sys_priority = 0; - - switch (priority) - { - case OBJC_THREAD_INTERACTIVE_PRIORITY: - sys_priority = (PRI_FG_MIN_NP + PRI_FG_MAX_NP) / 2; - break; - default: - case OBJC_THREAD_BACKGROUND_PRIORITY: - sys_priority = (PRI_BG_MIN_NP + PRI_BG_MAX_NP) / 2; - break; - case OBJC_THREAD_LOW_PRIORITY: - sys_priority = (PRI_BG_MIN_NP + PRI_BG_MAX_NP) / 2; - break; - } - - /* Change the priority. */ - if (pthread_setprio(pthread_self(), sys_priority) >= 0) - return 0; - else - /* Failed */ - return -1; -} - -/* Return the current thread's priority. */ -int -__objc_thread_get_priority(void) -{ - int sys_priority; - - if ((sys_priority = pthread_getprio(pthread_self())) >= 0) { - if (sys_priority >= PRI_FG_MIN_NP && sys_priority <= PRI_FG_MAX_NP) - return OBJC_THREAD_INTERACTIVE_PRIORITY; - if (sys_priority >= PRI_BG_MIN_NP && sys_priority <= PRI_BG_MAX_NP) - return OBJC_THREAD_BACKGROUND_PRIORITY; - return OBJC_THREAD_LOW_PRIORITY; - } - - /* Failed */ - return -1; -} - -/* Yield our process time to another thread. */ -void -__objc_thread_yield(void) -{ - pthread_yield(); -} - -/* Terminate the current thread. */ -int -__objc_thread_exit(void) -{ - /* exit the thread */ - pthread_exit(&__objc_thread_exit_status); - - /* Failed if we reached here */ - return -1; -} - -/* Returns an integer value which uniquely describes a thread. */ -objc_thread_t -__objc_thread_id(void) -{ - pthread_t self = pthread_self(); - - return (objc_thread_t) pthread_getunique_np (&self); -} - -/* Sets the thread's local storage pointer. */ -int -__objc_thread_set_data(void *value) -{ - return pthread_setspecific(_objc_thread_storage, value); -} - -/* Returns the thread's local storage pointer. */ -void * -__objc_thread_get_data(void) -{ - void *value = NULL; - - if ( !(pthread_getspecific(_objc_thread_storage, &value)) ) - return value; - - return NULL; -} - -/* Backend mutex functions */ - -/* Allocate a mutex. */ -int -__objc_mutex_allocate(objc_mutex_t mutex) -{ - if (pthread_mutex_init((pthread_mutex_t *)(&(mutex->backend)), - pthread_mutexattr_default)) - return -1; - else - return 0; -} - -/* Deallocate a mutex. */ -int -__objc_mutex_deallocate(objc_mutex_t mutex) -{ - if (pthread_mutex_destroy((pthread_mutex_t *)(&(mutex->backend)))) - return -1; - else - return 0; -} - -/* Grab a lock on a mutex. */ -int -__objc_mutex_lock(objc_mutex_t mutex) -{ - return pthread_mutex_lock((pthread_mutex_t *)(&(mutex->backend))); -} - -/* Try to grab a lock on a mutex. */ -int -__objc_mutex_trylock(objc_mutex_t mutex) -{ - if (pthread_mutex_trylock((pthread_mutex_t *)(&(mutex->backend))) != 1) - return -1; - else - return 0; -} - -/* Unlock the mutex */ -int -__objc_mutex_unlock(objc_mutex_t mutex) -{ - return pthread_mutex_unlock((pthread_mutex_t *)(&(mutex->backend))); -} - -/* Backend condition mutex functions */ - -/* Allocate a condition. */ -int -__objc_condition_allocate(objc_condition_t condition) -{ - /* Unimplemented. */ - return -1; - - /* - if (pthread_cond_init((pthread_cond_t *)(&(condition->backend)), NULL)) - return -1; - else - return 0; - */ -} - -/* Deallocate a condition. */ -int -__objc_condition_deallocate(objc_condition_t condition) -{ - /* Unimplemented. */ - return -1; - - /* - return pthread_cond_destroy((pthread_cond_t *)(&(condition->backend))); - */ -} - -/* Wait on the condition */ -int -__objc_condition_wait(objc_condition_t condition, objc_mutex_t mutex) -{ - /* Unimplemented. */ - return -1; - - /* - return pthread_cond_wait((pthread_cond_t *)(&(condition->backend)), - (pthread_mutex_t *)(&(mutex->backend))); - */ -} - -/* Wake up all threads waiting on this condition. */ -int -__objc_condition_broadcast(objc_condition_t condition) -{ - /* Unimplemented. */ - return -1; - - /* - return pthread_cond_broadcast((pthread_cond_t *)(&(condition->backend))); - */ -} - -/* Wake up one thread waiting on this condition. */ -int -__objc_condition_signal(objc_condition_t condition) -{ - /* Unimplemented. */ - return -1; - - /* - return pthread_cond_signal((pthread_cond_t *)(&(condition->backend))); - */ -} - -/* End of File */