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authorNicola Pero <nicola.pero@meta-innovation.com>2010-09-08 09:35:50 +0000
committerNicola Pero <nicola@gcc.gnu.org>2010-09-08 09:35:50 +0000
commit88a2722e1fd941a7d02575a6663641d0739939a5 (patch)
tree2af7479e59d3f37ae5035d563a34809a2b4036c7 /libobjc/thr-mach.c
parent0db1920c3d6841fafde80b28f86d90b8ab989212 (diff)
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Removed obsolete intermediate threading layer.
* thr.c: Use __gthread_objc_xxx functions directly instead of __objc_thread_xxx ones. * objc/thr.h: Removed prototypes of no longer existing __objc_thread_xxx functions. * Makefile.in: Removed thr-objc.lo. * thr-dce.c: File removed. * thr-decosf1.c: File removed. * thr-irix.c: File removed. * thr-mach.c: File removed. * thr-objc.c: File removed. * thr-os2.c: File removed. * thr-posix.c: File removed. * thr-pthreads.c: File removed. * thr-rtems.c: File removed. * thr-single.c: File removed. * thr-solaris.c: File removed. * thr-vxworks.c: File removed. * thr-win32.c: File removed. * README.threads: File removed. * THREADS.MACH: File removed. * THREADS: Updated. From-SVN: r163996
Diffstat (limited to 'libobjc/thr-mach.c')
-rw-r--r--libobjc/thr-mach.c312
1 files changed, 0 insertions, 312 deletions
diff --git a/libobjc/thr-mach.c b/libobjc/thr-mach.c
deleted file mode 100644
index 19b95db..0000000
--- a/libobjc/thr-mach.c
+++ /dev/null
@@ -1,312 +0,0 @@
-/* GNU Objective C Runtime Thread Implementation
- Copyright (C) 1996, 1997, 2002, 2009 Free Software Foundation, Inc.
- Contributed by Galen C. Hunt (gchunt@cs.rochester.edu)
- Modified for Mach threads by Bill Bumgarner <bbum@friday.com>
- Condition functions added by Mircea Oancea <mircea@first.elcom.pub.ro>
-
-This file is part of GCC.
-
-GCC 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 3, or (at your option) any later version.
-
-GCC 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.
-
-Under Section 7 of GPL version 3, you are granted additional
-permissions described in the GCC Runtime Library Exception, version
-3.1, as published by the Free Software Foundation.
-
-You should have received a copy of the GNU General Public License and
-a copy of the GCC Runtime Library Exception along with this program;
-see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
-<http://www.gnu.org/licenses/>. */
-
-
-#include <mach/mach.h>
-#include <mach/cthreads.h>
-#include "objc/thr.h"
-#include "objc/runtime.h"
-
-/*
- Obtain the maximum thread priority that can set for t. Under the
- mach threading model, it is possible for the developer to adjust the
- maximum priority downward only-- cannot be raised without superuser
- privileges. Once lowered, it cannot be raised.
- */
-static int
-__mach_get_max_thread_priority (cthread_t t, int *base)
-{
- thread_t threadP;
- kern_return_t error;
- struct thread_sched_info info;
- unsigned int info_count=THREAD_SCHED_INFO_COUNT;
-
- if (t == NULL)
- return -1;
-
- threadP = cthread_thread (t); /* get thread underlying */
-
- error = thread_info (threadP, THREAD_SCHED_INFO,
- (thread_info_t) &info, &info_count);
-
- if (error != KERN_SUCCESS)
- return -1;
-
- if (base != NULL)
- *base = info.base_priority;
-
- return info.max_priority;
-}
-
-/* Backend initialization functions */
-
-/* Initialize the threads subsystem. */
-int
-__objc_init_thread_system (void)
-{
- return 0;
-}
-
-/* Close the threads subsystem. */
-int
-__objc_close_thread_system (void)
-{
- 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;
- cthread_t new_thread_handle;
-
- /* create thread */
- new_thread_handle = cthread_fork ((cthread_fn_t) func, arg);
-
- if (new_thread_handle)
- {
- /* this is not terribly portable */
- thread_id = *(objc_thread_t *) &new_thread_handle;
- cthread_detach (new_thread_handle);
- }
- else
- thread_id = NULL;
-
- return thread_id;
-}
-
-/* Set the current thread's priority. */
-int
-__objc_thread_set_priority (int priority)
-{
- objc_thread_t *t = objc_thread_id ();
- cthread_t cT = (cthread_t) t;
- int maxPriority = __mach_get_max_thread_priority (cT, NULL);
- int sys_priority = 0;
-
- if (maxPriority == -1)
- return -1;
-
- switch (priority)
- {
- case OBJC_THREAD_INTERACTIVE_PRIORITY:
- sys_priority = maxPriority;
- break;
- case OBJC_THREAD_BACKGROUND_PRIORITY:
- sys_priority = (maxPriority * 2) / 3;
- break;
- case OBJC_THREAD_LOW_PRIORITY:
- sys_priority = maxPriority / 3;
- break;
- default:
- return -1;
- }
-
- if (sys_priority == 0)
- return -1;
-
- /* Change the priority */
- if (cthread_priority (cT, sys_priority, 0) == KERN_SUCCESS)
- return 0;
- else
- return -1;
-}
-
-/* Return the current thread's priority. */
-int
-__objc_thread_get_priority (void)
-{
- objc_thread_t *t = objc_thread_id ();
- cthread_t cT = (cthread_t) t; /* see objc_thread_id () */
- int basePriority;
- int maxPriority;
- int sys_priority = 0;
-
- int interactiveT, backgroundT, lowT; /* thresholds */
-
- maxPriority = __mach_get_max_thread_priority (cT, &basePriority);
-
- if (maxPriority == -1)
- return -1;
-
- if (basePriority > ( (maxPriority * 2) / 3))
- return OBJC_THREAD_INTERACTIVE_PRIORITY;
-
- if (basePriority > ( maxPriority / 3))
- return OBJC_THREAD_BACKGROUND_PRIORITY;
-
- return OBJC_THREAD_LOW_PRIORITY;
-}
-
-/* Yield our process time to another thread. */
-void
-__objc_thread_yield (void)
-{
- cthread_yield ();
-}
-
-/* Terminate the current thread. */
-int
-__objc_thread_exit (void)
-{
- /* exit the thread */
- cthread_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)
-{
- cthread_t self = cthread_self ();
-
- return *(objc_thread_t *) &self;
-}
-
-/* Sets the thread's local storage pointer. */
-int
-__objc_thread_set_data (void *value)
-{
- cthread_set_data (cthread_self (), (any_t) value);
- return 0;
-}
-
-/* Returns the thread's local storage pointer. */
-void *
-__objc_thread_get_data (void)
-{
- return (void *) cthread_data (cthread_self ());
-}
-
-/* Backend mutex functions */
-
-/* Allocate a mutex. */
-int
-__objc_mutex_allocate (objc_mutex_t mutex)
-{
- int err = 0;
- mutex->backend = objc_malloc (sizeof (struct mutex));
-
- err = mutex_init ((mutex_t) (mutex->backend));
-
- if (err != 0)
- {
- objc_free (mutex->backend);
- return -1;
- }
- else
- return 0;
-}
-
-/* Deallocate a mutex. */
-int
-__objc_mutex_deallocate (objc_mutex_t mutex)
-{
- mutex_clear ((mutex_t) (mutex->backend));
-
- objc_free (mutex->backend);
- mutex->backend = NULL;
- return 0;
-}
-
-/* Grab a lock on a mutex. */
-int
-__objc_mutex_lock (objc_mutex_t mutex)
-{
- mutex_lock ((mutex_t) (mutex->backend));
- return 0;
-}
-
-/* Try to grab a lock on a mutex. */
-int
-__objc_mutex_trylock (objc_mutex_t mutex)
-{
- if (mutex_try_lock ((mutex_t) (mutex->backend)) == 0)
- return -1;
- else
- return 0;
-}
-
-/* Unlock the mutex */
-int
-__objc_mutex_unlock (objc_mutex_t mutex)
-{
- mutex_unlock ((mutex_t) (mutex->backend));
- return 0;
-}
-
-/* Backend condition mutex functions */
-
-/* Allocate a condition. */
-int
-__objc_condition_allocate (objc_condition_t condition)
-{
- condition->backend = objc_malloc (sizeof (struct condition));
- condition_init ((condition_t) (condition->backend));
- return 0;
-}
-
-/* Deallocate a condition. */
-int
-__objc_condition_deallocate (objc_condition_t condition)
-{
- condition_clear ((condition_t) (condition->backend));
- objc_free (condition->backend);
- condition->backend = NULL;
- return 0;
-}
-
-/* Wait on the condition */
-int
-__objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
-{
- condition_wait ((condition_t) (condition->backend),
- (mutex_t) (mutex->backend));
- return 0;
-}
-
-/* Wake up all threads waiting on this condition. */
-int
-__objc_condition_broadcast (objc_condition_t condition)
-{
- condition_broadcast ((condition_t) (condition->backend));
- return 0;
-}
-
-/* Wake up one thread waiting on this condition. */
-int
-__objc_condition_signal (objc_condition_t condition)
-{
- condition_signal ((condition_t) (condition->backend));
- return 0;
-}
-
-/* End of File */