0,0 → 1,889 |
/* Threads compatibility routines for libgcc2 and libobjc. */ |
/* Compile this one with gcc. */ |
/* Copyright (C) 1997-2015 Free Software Foundation, Inc. |
|
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/>. */ |
|
#ifndef GCC_GTHR_POSIX_H |
#define GCC_GTHR_POSIX_H |
|
/* POSIX threads specific definitions. |
Easy, since the interface is just one-to-one mapping. */ |
|
#define __GTHREADS 1 |
#define __GTHREADS_CXX0X 1 |
|
#include <pthread.h> |
|
#if ((defined(_LIBOBJC) || defined(_LIBOBJC_WEAK)) \ |
|| !defined(_GTHREAD_USE_MUTEX_TIMEDLOCK)) |
# include <unistd.h> |
# if defined(_POSIX_TIMEOUTS) && _POSIX_TIMEOUTS >= 0 |
# define _GTHREAD_USE_MUTEX_TIMEDLOCK 1 |
# else |
# define _GTHREAD_USE_MUTEX_TIMEDLOCK 0 |
# endif |
#endif |
|
typedef pthread_t __gthread_t; |
typedef pthread_key_t __gthread_key_t; |
typedef pthread_once_t __gthread_once_t; |
typedef pthread_mutex_t __gthread_mutex_t; |
typedef pthread_mutex_t __gthread_recursive_mutex_t; |
typedef pthread_cond_t __gthread_cond_t; |
typedef struct timespec __gthread_time_t; |
|
/* POSIX like conditional variables are supported. Please look at comments |
in gthr.h for details. */ |
#define __GTHREAD_HAS_COND 1 |
|
#define __GTHREAD_MUTEX_INIT PTHREAD_MUTEX_INITIALIZER |
#define __GTHREAD_MUTEX_INIT_FUNCTION __gthread_mutex_init_function |
#define __GTHREAD_ONCE_INIT PTHREAD_ONCE_INIT |
#if defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER) |
#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER |
#elif defined(PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) |
#define __GTHREAD_RECURSIVE_MUTEX_INIT PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP |
#else |
#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function |
#endif |
#define __GTHREAD_COND_INIT PTHREAD_COND_INITIALIZER |
#define __GTHREAD_TIME_INIT {0,0} |
|
#ifdef _GTHREAD_USE_MUTEX_INIT_FUNC |
# undef __GTHREAD_MUTEX_INIT |
#endif |
#ifdef _GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC |
# undef __GTHREAD_RECURSIVE_MUTEX_INIT |
# undef __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION |
# define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function |
#endif |
#ifdef _GTHREAD_USE_COND_INIT_FUNC |
# undef __GTHREAD_COND_INIT |
# define __GTHREAD_COND_INIT_FUNCTION __gthread_cond_init_function |
#endif |
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK |
# ifndef __gthrw_pragma |
# define __gthrw_pragma(pragma) |
# endif |
# define __gthrw2(name,name2,type) \ |
static __typeof(type) name __attribute__ ((__weakref__(#name2))); \ |
__gthrw_pragma(weak type) |
# define __gthrw_(name) __gthrw_ ## name |
#else |
# define __gthrw2(name,name2,type) |
# define __gthrw_(name) name |
#endif |
|
/* Typically, __gthrw_foo is a weak reference to symbol foo. */ |
#define __gthrw(name) __gthrw2(__gthrw_ ## name,name,name) |
|
__gthrw(pthread_once) |
__gthrw(pthread_getspecific) |
__gthrw(pthread_setspecific) |
|
__gthrw(pthread_create) |
__gthrw(pthread_join) |
__gthrw(pthread_equal) |
__gthrw(pthread_self) |
__gthrw(pthread_detach) |
#ifndef __BIONIC__ |
__gthrw(pthread_cancel) |
#endif |
__gthrw(sched_yield) |
|
__gthrw(pthread_mutex_lock) |
__gthrw(pthread_mutex_trylock) |
#if _GTHREAD_USE_MUTEX_TIMEDLOCK |
__gthrw(pthread_mutex_timedlock) |
#endif |
__gthrw(pthread_mutex_unlock) |
__gthrw(pthread_mutex_init) |
__gthrw(pthread_mutex_destroy) |
|
__gthrw(pthread_cond_init) |
__gthrw(pthread_cond_broadcast) |
__gthrw(pthread_cond_signal) |
__gthrw(pthread_cond_wait) |
__gthrw(pthread_cond_timedwait) |
__gthrw(pthread_cond_destroy) |
|
__gthrw(pthread_key_create) |
__gthrw(pthread_key_delete) |
__gthrw(pthread_mutexattr_init) |
__gthrw(pthread_mutexattr_settype) |
__gthrw(pthread_mutexattr_destroy) |
|
|
#if defined(_LIBOBJC) || defined(_LIBOBJC_WEAK) |
/* Objective-C. */ |
__gthrw(pthread_exit) |
#ifdef _POSIX_PRIORITY_SCHEDULING |
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING |
__gthrw(sched_get_priority_max) |
__gthrw(sched_get_priority_min) |
#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ |
#endif /* _POSIX_PRIORITY_SCHEDULING */ |
__gthrw(pthread_attr_destroy) |
__gthrw(pthread_attr_init) |
__gthrw(pthread_attr_setdetachstate) |
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING |
__gthrw(pthread_getschedparam) |
__gthrw(pthread_setschedparam) |
#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ |
#endif /* _LIBOBJC || _LIBOBJC_WEAK */ |
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK |
|
/* On Solaris 2.6 up to 9, the libc exposes a POSIX threads interface even if |
-pthreads is not specified. The functions are dummies and most return an |
error value. However pthread_once returns 0 without invoking the routine |
it is passed so we cannot pretend that the interface is active if -pthreads |
is not specified. On Solaris 2.5.1, the interface is not exposed at all so |
we need to play the usual game with weak symbols. On Solaris 10 and up, a |
working interface is always exposed. On FreeBSD 6 and later, libc also |
exposes a dummy POSIX threads interface, similar to what Solaris 2.6 up |
to 9 does. FreeBSD >= 700014 even provides a pthread_cancel stub in libc, |
which means the alternate __gthread_active_p below cannot be used there. */ |
|
#if defined(__FreeBSD__) || (defined(__sun) && defined(__svr4__)) |
|
static volatile int __gthread_active = -1; |
|
static void |
__gthread_trigger (void) |
{ |
__gthread_active = 1; |
} |
|
static inline int |
__gthread_active_p (void) |
{ |
static pthread_mutex_t __gthread_active_mutex = PTHREAD_MUTEX_INITIALIZER; |
static pthread_once_t __gthread_active_once = PTHREAD_ONCE_INIT; |
|
/* Avoid reading __gthread_active twice on the main code path. */ |
int __gthread_active_latest_value = __gthread_active; |
|
/* This test is not protected to avoid taking a lock on the main code |
path so every update of __gthread_active in a threaded program must |
be atomic with regard to the result of the test. */ |
if (__builtin_expect (__gthread_active_latest_value < 0, 0)) |
{ |
if (__gthrw_(pthread_once)) |
{ |
/* If this really is a threaded program, then we must ensure that |
__gthread_active has been set to 1 before exiting this block. */ |
__gthrw_(pthread_mutex_lock) (&__gthread_active_mutex); |
__gthrw_(pthread_once) (&__gthread_active_once, __gthread_trigger); |
__gthrw_(pthread_mutex_unlock) (&__gthread_active_mutex); |
} |
|
/* Make sure we'll never enter this block again. */ |
if (__gthread_active < 0) |
__gthread_active = 0; |
|
__gthread_active_latest_value = __gthread_active; |
} |
|
return __gthread_active_latest_value != 0; |
} |
|
#else /* neither FreeBSD nor Solaris */ |
|
/* For a program to be multi-threaded the only thing that it certainly must |
be using is pthread_create. However, there may be other libraries that |
intercept pthread_create with their own definitions to wrap pthreads |
functionality for some purpose. In those cases, pthread_create being |
defined might not necessarily mean that libpthread is actually linked |
in. |
|
For the GNU C library, we can use a known internal name. This is always |
available in the ABI, but no other library would define it. That is |
ideal, since any public pthread function might be intercepted just as |
pthread_create might be. __pthread_key_create is an "internal" |
implementation symbol, but it is part of the public exported ABI. Also, |
it's among the symbols that the static libpthread.a always links in |
whenever pthread_create is used, so there is no danger of a false |
negative result in any statically-linked, multi-threaded program. |
|
For others, we choose pthread_cancel as a function that seems unlikely |
to be redefined by an interceptor library. The bionic (Android) C |
library does not provide pthread_cancel, so we do use pthread_create |
there (and interceptor libraries lose). */ |
|
#ifdef __GLIBC__ |
__gthrw2(__gthrw_(__pthread_key_create), |
__pthread_key_create, |
pthread_key_create) |
# define GTHR_ACTIVE_PROXY __gthrw_(__pthread_key_create) |
#elif defined (__BIONIC__) |
# define GTHR_ACTIVE_PROXY __gthrw_(pthread_create) |
#else |
# define GTHR_ACTIVE_PROXY __gthrw_(pthread_cancel) |
#endif |
|
static inline int |
__gthread_active_p (void) |
{ |
static void *const __gthread_active_ptr |
= __extension__ (void *) >HR_ACTIVE_PROXY; |
return __gthread_active_ptr != 0; |
} |
|
#endif /* FreeBSD or Solaris */ |
|
#else /* not SUPPORTS_WEAK */ |
|
/* Similar to Solaris, HP-UX 11 for PA-RISC provides stubs for pthread |
calls in shared flavors of the HP-UX C library. Most of the stubs |
have no functionality. The details are described in the "libc cumulative |
patch" for each subversion of HP-UX 11. There are two special interfaces |
provided for checking whether an application is linked to a shared pthread |
library or not. However, these interfaces aren't available in early |
libpthread libraries. We also need a test that works for archive |
libraries. We can't use pthread_once as some libc versions call the |
init function. We also can't use pthread_create or pthread_attr_init |
as these create a thread and thereby prevent changing the default stack |
size. The function pthread_default_stacksize_np is available in both |
the archive and shared versions of libpthread. It can be used to |
determine the default pthread stack size. There is a stub in some |
shared libc versions which returns a zero size if pthreads are not |
active. We provide an equivalent stub to handle cases where libc |
doesn't provide one. */ |
|
#if defined(__hppa__) && defined(__hpux__) |
|
static volatile int __gthread_active = -1; |
|
static inline int |
__gthread_active_p (void) |
{ |
/* Avoid reading __gthread_active twice on the main code path. */ |
int __gthread_active_latest_value = __gthread_active; |
size_t __s; |
|
if (__builtin_expect (__gthread_active_latest_value < 0, 0)) |
{ |
pthread_default_stacksize_np (0, &__s); |
__gthread_active = __s ? 1 : 0; |
__gthread_active_latest_value = __gthread_active; |
} |
|
return __gthread_active_latest_value != 0; |
} |
|
#else /* not hppa-hpux */ |
|
static inline int |
__gthread_active_p (void) |
{ |
return 1; |
} |
|
#endif /* hppa-hpux */ |
|
#endif /* SUPPORTS_WEAK */ |
|
#ifdef _LIBOBJC |
|
/* This is the config.h file in libobjc/ */ |
#include <config.h> |
|
#ifdef HAVE_SCHED_H |
# include <sched.h> |
#endif |
|
/* Key structure for maintaining thread specific storage */ |
static pthread_key_t _objc_thread_storage; |
static pthread_attr_t _objc_thread_attribs; |
|
/* Thread local storage for a single thread */ |
static void *thread_local_storage = NULL; |
|
/* Backend initialization functions */ |
|
/* Initialize the threads subsystem. */ |
static inline int |
__gthread_objc_init_thread_system (void) |
{ |
if (__gthread_active_p ()) |
{ |
/* Initialize the thread storage key. */ |
if (__gthrw_(pthread_key_create) (&_objc_thread_storage, NULL) == 0) |
{ |
/* The normal default detach state for threads is |
* PTHREAD_CREATE_JOINABLE which causes threads to not die |
* when you think they should. */ |
if (__gthrw_(pthread_attr_init) (&_objc_thread_attribs) == 0 |
&& __gthrw_(pthread_attr_setdetachstate) (&_objc_thread_attribs, |
PTHREAD_CREATE_DETACHED) == 0) |
return 0; |
} |
} |
|
return -1; |
} |
|
/* Close the threads subsystem. */ |
static inline int |
__gthread_objc_close_thread_system (void) |
{ |
if (__gthread_active_p () |
&& __gthrw_(pthread_key_delete) (_objc_thread_storage) == 0 |
&& __gthrw_(pthread_attr_destroy) (&_objc_thread_attribs) == 0) |
return 0; |
|
return -1; |
} |
|
/* Backend thread functions */ |
|
/* Create a new thread of execution. */ |
static inline objc_thread_t |
__gthread_objc_thread_detach (void (*func)(void *), void *arg) |
{ |
objc_thread_t thread_id; |
pthread_t new_thread_handle; |
|
if (!__gthread_active_p ()) |
return NULL; |
|
if (!(__gthrw_(pthread_create) (&new_thread_handle, &_objc_thread_attribs, |
(void *) func, arg))) |
thread_id = (objc_thread_t) new_thread_handle; |
else |
thread_id = NULL; |
|
return thread_id; |
} |
|
/* Set the current thread's priority. */ |
static inline int |
__gthread_objc_thread_set_priority (int priority) |
{ |
if (!__gthread_active_p ()) |
return -1; |
else |
{ |
#ifdef _POSIX_PRIORITY_SCHEDULING |
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING |
pthread_t thread_id = __gthrw_(pthread_self) (); |
int policy; |
struct sched_param params; |
int priority_min, priority_max; |
|
if (__gthrw_(pthread_getschedparam) (thread_id, &policy, ¶ms) == 0) |
{ |
if ((priority_max = __gthrw_(sched_get_priority_max) (policy)) == -1) |
return -1; |
|
if ((priority_min = __gthrw_(sched_get_priority_min) (policy)) == -1) |
return -1; |
|
if (priority > priority_max) |
priority = priority_max; |
else if (priority < priority_min) |
priority = priority_min; |
params.sched_priority = priority; |
|
/* |
* The solaris 7 and several other man pages incorrectly state that |
* this should be a pointer to policy but pthread.h is universally |
* at odds with this. |
*/ |
if (__gthrw_(pthread_setschedparam) (thread_id, policy, ¶ms) == 0) |
return 0; |
} |
#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ |
#endif /* _POSIX_PRIORITY_SCHEDULING */ |
return -1; |
} |
} |
|
/* Return the current thread's priority. */ |
static inline int |
__gthread_objc_thread_get_priority (void) |
{ |
#ifdef _POSIX_PRIORITY_SCHEDULING |
#ifdef _POSIX_THREAD_PRIORITY_SCHEDULING |
if (__gthread_active_p ()) |
{ |
int policy; |
struct sched_param params; |
|
if (__gthrw_(pthread_getschedparam) (__gthrw_(pthread_self) (), &policy, ¶ms) == 0) |
return params.sched_priority; |
else |
return -1; |
} |
else |
#endif /* _POSIX_THREAD_PRIORITY_SCHEDULING */ |
#endif /* _POSIX_PRIORITY_SCHEDULING */ |
return OBJC_THREAD_INTERACTIVE_PRIORITY; |
} |
|
/* Yield our process time to another thread. */ |
static inline void |
__gthread_objc_thread_yield (void) |
{ |
if (__gthread_active_p ()) |
__gthrw_(sched_yield) (); |
} |
|
/* Terminate the current thread. */ |
static inline int |
__gthread_objc_thread_exit (void) |
{ |
if (__gthread_active_p ()) |
/* exit the thread */ |
__gthrw_(pthread_exit) (&__objc_thread_exit_status); |
|
/* Failed if we reached here */ |
return -1; |
} |
|
/* Returns an integer value which uniquely describes a thread. */ |
static inline objc_thread_t |
__gthread_objc_thread_id (void) |
{ |
if (__gthread_active_p ()) |
return (objc_thread_t) __gthrw_(pthread_self) (); |
else |
return (objc_thread_t) 1; |
} |
|
/* Sets the thread's local storage pointer. */ |
static inline int |
__gthread_objc_thread_set_data (void *value) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_setspecific) (_objc_thread_storage, value); |
else |
{ |
thread_local_storage = value; |
return 0; |
} |
} |
|
/* Returns the thread's local storage pointer. */ |
static inline void * |
__gthread_objc_thread_get_data (void) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_getspecific) (_objc_thread_storage); |
else |
return thread_local_storage; |
} |
|
/* Backend mutex functions */ |
|
/* Allocate a mutex. */ |
static inline int |
__gthread_objc_mutex_allocate (objc_mutex_t mutex) |
{ |
if (__gthread_active_p ()) |
{ |
mutex->backend = objc_malloc (sizeof (pthread_mutex_t)); |
|
if (__gthrw_(pthread_mutex_init) ((pthread_mutex_t *) mutex->backend, NULL)) |
{ |
objc_free (mutex->backend); |
mutex->backend = NULL; |
return -1; |
} |
} |
|
return 0; |
} |
|
/* Deallocate a mutex. */ |
static inline int |
__gthread_objc_mutex_deallocate (objc_mutex_t mutex) |
{ |
if (__gthread_active_p ()) |
{ |
int count; |
|
/* |
* Posix Threads specifically require that the thread be unlocked |
* for __gthrw_(pthread_mutex_destroy) to work. |
*/ |
|
do |
{ |
count = __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend); |
if (count < 0) |
return -1; |
} |
while (count); |
|
if (__gthrw_(pthread_mutex_destroy) ((pthread_mutex_t *) mutex->backend)) |
return -1; |
|
objc_free (mutex->backend); |
mutex->backend = NULL; |
} |
return 0; |
} |
|
/* Grab a lock on a mutex. */ |
static inline int |
__gthread_objc_mutex_lock (objc_mutex_t mutex) |
{ |
if (__gthread_active_p () |
&& __gthrw_(pthread_mutex_lock) ((pthread_mutex_t *) mutex->backend) != 0) |
{ |
return -1; |
} |
|
return 0; |
} |
|
/* Try to grab a lock on a mutex. */ |
static inline int |
__gthread_objc_mutex_trylock (objc_mutex_t mutex) |
{ |
if (__gthread_active_p () |
&& __gthrw_(pthread_mutex_trylock) ((pthread_mutex_t *) mutex->backend) != 0) |
{ |
return -1; |
} |
|
return 0; |
} |
|
/* Unlock the mutex */ |
static inline int |
__gthread_objc_mutex_unlock (objc_mutex_t mutex) |
{ |
if (__gthread_active_p () |
&& __gthrw_(pthread_mutex_unlock) ((pthread_mutex_t *) mutex->backend) != 0) |
{ |
return -1; |
} |
|
return 0; |
} |
|
/* Backend condition mutex functions */ |
|
/* Allocate a condition. */ |
static inline int |
__gthread_objc_condition_allocate (objc_condition_t condition) |
{ |
if (__gthread_active_p ()) |
{ |
condition->backend = objc_malloc (sizeof (pthread_cond_t)); |
|
if (__gthrw_(pthread_cond_init) ((pthread_cond_t *) condition->backend, NULL)) |
{ |
objc_free (condition->backend); |
condition->backend = NULL; |
return -1; |
} |
} |
|
return 0; |
} |
|
/* Deallocate a condition. */ |
static inline int |
__gthread_objc_condition_deallocate (objc_condition_t condition) |
{ |
if (__gthread_active_p ()) |
{ |
if (__gthrw_(pthread_cond_destroy) ((pthread_cond_t *) condition->backend)) |
return -1; |
|
objc_free (condition->backend); |
condition->backend = NULL; |
} |
return 0; |
} |
|
/* Wait on the condition */ |
static inline int |
__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_cond_wait) ((pthread_cond_t *) condition->backend, |
(pthread_mutex_t *) mutex->backend); |
else |
return 0; |
} |
|
/* Wake up all threads waiting on this condition. */ |
static inline int |
__gthread_objc_condition_broadcast (objc_condition_t condition) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_cond_broadcast) ((pthread_cond_t *) condition->backend); |
else |
return 0; |
} |
|
/* Wake up one thread waiting on this condition. */ |
static inline int |
__gthread_objc_condition_signal (objc_condition_t condition) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_cond_signal) ((pthread_cond_t *) condition->backend); |
else |
return 0; |
} |
|
#else /* _LIBOBJC */ |
|
static inline int |
__gthread_create (__gthread_t *__threadid, void *(*__func) (void*), |
void *__args) |
{ |
return __gthrw_(pthread_create) (__threadid, NULL, __func, __args); |
} |
|
static inline int |
__gthread_join (__gthread_t __threadid, void **__value_ptr) |
{ |
return __gthrw_(pthread_join) (__threadid, __value_ptr); |
} |
|
static inline int |
__gthread_detach (__gthread_t __threadid) |
{ |
return __gthrw_(pthread_detach) (__threadid); |
} |
|
static inline int |
__gthread_equal (__gthread_t __t1, __gthread_t __t2) |
{ |
return __gthrw_(pthread_equal) (__t1, __t2); |
} |
|
static inline __gthread_t |
__gthread_self (void) |
{ |
return __gthrw_(pthread_self) (); |
} |
|
static inline int |
__gthread_yield (void) |
{ |
return __gthrw_(sched_yield) (); |
} |
|
static inline int |
__gthread_once (__gthread_once_t *__once, void (*__func) (void)) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_once) (__once, __func); |
else |
return -1; |
} |
|
static inline int |
__gthread_key_create (__gthread_key_t *__key, void (*__dtor) (void *)) |
{ |
return __gthrw_(pthread_key_create) (__key, __dtor); |
} |
|
static inline int |
__gthread_key_delete (__gthread_key_t __key) |
{ |
return __gthrw_(pthread_key_delete) (__key); |
} |
|
static inline void * |
__gthread_getspecific (__gthread_key_t __key) |
{ |
return __gthrw_(pthread_getspecific) (__key); |
} |
|
static inline int |
__gthread_setspecific (__gthread_key_t __key, const void *__ptr) |
{ |
return __gthrw_(pthread_setspecific) (__key, __ptr); |
} |
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static inline void |
__gthread_mutex_init_function (__gthread_mutex_t *__mutex) |
{ |
if (__gthread_active_p ()) |
__gthrw_(pthread_mutex_init) (__mutex, NULL); |
} |
|
static inline int |
__gthread_mutex_destroy (__gthread_mutex_t *__mutex) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_mutex_destroy) (__mutex); |
else |
return 0; |
} |
|
static inline int |
__gthread_mutex_lock (__gthread_mutex_t *__mutex) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_mutex_lock) (__mutex); |
else |
return 0; |
} |
|
static inline int |
__gthread_mutex_trylock (__gthread_mutex_t *__mutex) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_mutex_trylock) (__mutex); |
else |
return 0; |
} |
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#if _GTHREAD_USE_MUTEX_TIMEDLOCK |
static inline int |
__gthread_mutex_timedlock (__gthread_mutex_t *__mutex, |
const __gthread_time_t *__abs_timeout) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_mutex_timedlock) (__mutex, __abs_timeout); |
else |
return 0; |
} |
#endif |
|
static inline int |
__gthread_mutex_unlock (__gthread_mutex_t *__mutex) |
{ |
if (__gthread_active_p ()) |
return __gthrw_(pthread_mutex_unlock) (__mutex); |
else |
return 0; |
} |
|
#if !defined( PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP) \ |
|| defined(_GTHREAD_USE_RECURSIVE_MUTEX_INIT_FUNC) |
static inline int |
__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex) |
{ |
if (__gthread_active_p ()) |
{ |
pthread_mutexattr_t __attr; |
int __r; |
|
__r = __gthrw_(pthread_mutexattr_init) (&__attr); |
if (!__r) |
__r = __gthrw_(pthread_mutexattr_settype) (&__attr, |
PTHREAD_MUTEX_RECURSIVE); |
if (!__r) |
__r = __gthrw_(pthread_mutex_init) (__mutex, &__attr); |
if (!__r) |
__r = __gthrw_(pthread_mutexattr_destroy) (&__attr); |
return __r; |
} |
return 0; |
} |
#endif |
|
static inline int |
__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex) |
{ |
return __gthread_mutex_lock (__mutex); |
} |
|
static inline int |
__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex) |
{ |
return __gthread_mutex_trylock (__mutex); |
} |
|
#if _GTHREAD_USE_MUTEX_TIMEDLOCK |
static inline int |
__gthread_recursive_mutex_timedlock (__gthread_recursive_mutex_t *__mutex, |
const __gthread_time_t *__abs_timeout) |
{ |
return __gthread_mutex_timedlock (__mutex, __abs_timeout); |
} |
#endif |
|
static inline int |
__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex) |
{ |
return __gthread_mutex_unlock (__mutex); |
} |
|
static inline int |
__gthread_recursive_mutex_destroy (__gthread_recursive_mutex_t *__mutex) |
{ |
return __gthread_mutex_destroy (__mutex); |
} |
|
#ifdef _GTHREAD_USE_COND_INIT_FUNC |
static inline void |
__gthread_cond_init_function (__gthread_cond_t *__cond) |
{ |
if (__gthread_active_p ()) |
__gthrw_(pthread_cond_init) (__cond, NULL); |
} |
#endif |
|
static inline int |
__gthread_cond_broadcast (__gthread_cond_t *__cond) |
{ |
return __gthrw_(pthread_cond_broadcast) (__cond); |
} |
|
static inline int |
__gthread_cond_signal (__gthread_cond_t *__cond) |
{ |
return __gthrw_(pthread_cond_signal) (__cond); |
} |
|
static inline int |
__gthread_cond_wait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex) |
{ |
return __gthrw_(pthread_cond_wait) (__cond, __mutex); |
} |
|
static inline int |
__gthread_cond_timedwait (__gthread_cond_t *__cond, __gthread_mutex_t *__mutex, |
const __gthread_time_t *__abs_timeout) |
{ |
return __gthrw_(pthread_cond_timedwait) (__cond, __mutex, __abs_timeout); |
} |
|
static inline int |
__gthread_cond_wait_recursive (__gthread_cond_t *__cond, |
__gthread_recursive_mutex_t *__mutex) |
{ |
return __gthread_cond_wait (__cond, __mutex); |
} |
|
static inline int |
__gthread_cond_destroy (__gthread_cond_t* __cond) |
{ |
return __gthrw_(pthread_cond_destroy) (__cond); |
} |
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#endif /* _LIBOBJC */ |
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#endif /* ! GCC_GTHR_POSIX_H */ |