/* Threads compatibility routines for libgcc2 and libobjc. */
|
/* Threads compatibility routines for libgcc2 and libobjc. */
|
/* Compile this one with gcc. */
|
/* Compile this one with gcc. */
|
/* Copyright (C) 1997, 1999, 2000, 2004, 2005, 2006
|
/* Copyright (C) 1997, 1999, 2000, 2004, 2005, 2006
|
Free Software Foundation, Inc.
|
Free Software Foundation, Inc.
|
|
|
This file is part of GCC.
|
This file is part of GCC.
|
|
|
GCC is free software; you can redistribute it and/or modify it under
|
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
|
the terms of the GNU General Public License as published by the Free
|
Software Foundation; either version 2, or (at your option) any later
|
Software Foundation; either version 2, or (at your option) any later
|
version.
|
version.
|
|
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
GCC is distributed in the hope that it will be useful, but WITHOUT ANY
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
WARRANTY; without even the implied warranty of MERCHANTABILITY or
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
|
for more details.
|
for more details.
|
|
|
You should have received a copy of the GNU General Public License
|
You should have received a copy of the GNU General Public License
|
along with GCC; see the file COPYING. If not, write to the Free
|
along with GCC; see the file COPYING. If not, write to the Free
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
|
Software Foundation, 51 Franklin Street, Fifth Floor, Boston, MA
|
02110-1301, USA. */
|
02110-1301, USA. */
|
|
|
/* As a special exception, if you link this library with other files,
|
/* As a special exception, if you link this library with other files,
|
some of which are compiled with GCC, to produce an executable,
|
some of which are compiled with GCC, to produce an executable,
|
this library does not by itself cause the resulting executable
|
this library does not by itself cause the resulting executable
|
to be covered by the GNU General Public License.
|
to be covered by the GNU General Public License.
|
This exception does not however invalidate any other reasons why
|
This exception does not however invalidate any other reasons why
|
the executable file might be covered by the GNU General Public License. */
|
the executable file might be covered by the GNU General Public License. */
|
|
|
#ifndef GCC_GTHR_SOLARIS_H
|
#ifndef GCC_GTHR_SOLARIS_H
|
#define GCC_GTHR_SOLARIS_H
|
#define GCC_GTHR_SOLARIS_H
|
|
|
/* Solaris threads as found in Solaris 2.[456].
|
/* Solaris threads as found in Solaris 2.[456].
|
Actually these are Unix International (UI) threads, but I don't
|
Actually these are Unix International (UI) threads, but I don't
|
know if anyone else implements these. */
|
know if anyone else implements these. */
|
|
|
#define __GTHREADS 1
|
#define __GTHREADS 1
|
|
|
#include <thread.h>
|
#include <thread.h>
|
#include <errno.h>
|
#include <errno.h>
|
|
|
#ifdef __cplusplus
|
#ifdef __cplusplus
|
#define UNUSED(x)
|
#define UNUSED(x)
|
#else
|
#else
|
#define UNUSED(x) x __attribute__((unused))
|
#define UNUSED(x) x __attribute__((unused))
|
#endif
|
#endif
|
|
|
typedef thread_key_t __gthread_key_t;
|
typedef thread_key_t __gthread_key_t;
|
typedef struct {
|
typedef struct {
|
mutex_t mutex;
|
mutex_t mutex;
|
int once;
|
int once;
|
} __gthread_once_t;
|
} __gthread_once_t;
|
typedef mutex_t __gthread_mutex_t;
|
typedef mutex_t __gthread_mutex_t;
|
|
|
typedef struct {
|
typedef struct {
|
long depth;
|
long depth;
|
thread_t owner;
|
thread_t owner;
|
mutex_t actual;
|
mutex_t actual;
|
} __gthread_recursive_mutex_t;
|
} __gthread_recursive_mutex_t;
|
|
|
#define __GTHREAD_ONCE_INIT { DEFAULTMUTEX, 0 }
|
#define __GTHREAD_ONCE_INIT { DEFAULTMUTEX, 0 }
|
#define __GTHREAD_MUTEX_INIT DEFAULTMUTEX
|
#define __GTHREAD_MUTEX_INIT DEFAULTMUTEX
|
#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
|
#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
|
|
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
# define __gthrw(name) \
|
# define __gthrw(name) \
|
static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));
|
static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));
|
# define __gthrw_(name) __gthrw_ ## name
|
# define __gthrw_(name) __gthrw_ ## name
|
#else
|
#else
|
# define __gthrw(name)
|
# define __gthrw(name)
|
# define __gthrw_(name) name
|
# define __gthrw_(name) name
|
#endif
|
#endif
|
|
|
__gthrw(thr_keycreate)
|
__gthrw(thr_keycreate)
|
__gthrw(thr_getspecific)
|
__gthrw(thr_getspecific)
|
__gthrw(thr_setspecific)
|
__gthrw(thr_setspecific)
|
__gthrw(thr_create)
|
__gthrw(thr_create)
|
__gthrw(thr_self)
|
__gthrw(thr_self)
|
|
|
__gthrw(mutex_init)
|
__gthrw(mutex_init)
|
__gthrw(mutex_destroy)
|
__gthrw(mutex_destroy)
|
__gthrw(mutex_lock)
|
__gthrw(mutex_lock)
|
__gthrw(mutex_trylock)
|
__gthrw(mutex_trylock)
|
__gthrw(mutex_unlock)
|
__gthrw(mutex_unlock)
|
|
|
#ifdef _LIBOBJC
|
#ifdef _LIBOBJC
|
__gthrw(thr_exit)
|
__gthrw(thr_exit)
|
__gthrw(thr_getprio)
|
__gthrw(thr_getprio)
|
__gthrw(thr_setprio)
|
__gthrw(thr_setprio)
|
__gthrw(thr_yield)
|
__gthrw(thr_yield)
|
|
|
__gthrw(cond_init)
|
__gthrw(cond_init)
|
__gthrw(cond_destroy)
|
__gthrw(cond_destroy)
|
__gthrw(cond_wait)
|
__gthrw(cond_wait)
|
__gthrw(cond_broadcast)
|
__gthrw(cond_broadcast)
|
__gthrw(cond_signal)
|
__gthrw(cond_signal)
|
|
|
#endif
|
#endif
|
|
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
|
|
|
/* This will not actually work in Solaris 2.5, since libc contains
|
/* This will not actually work in Solaris 2.5, since libc contains
|
dummy symbols of all thr_* routines. */
|
dummy symbols of all thr_* routines. */
|
|
|
static inline int
|
static inline int
|
__gthread_active_p (void)
|
__gthread_active_p (void)
|
{
|
{
|
static void *const __gthread_active_ptr = (void *) &__gthrw_(thr_create);
|
static void *const __gthread_active_ptr = (void *) &__gthrw_(thr_create);
|
return __gthread_active_ptr != 0;
|
return __gthread_active_ptr != 0;
|
}
|
}
|
|
|
#else /* not SUPPORTS_WEAK */
|
#else /* not SUPPORTS_WEAK */
|
|
|
static inline int
|
static inline int
|
__gthread_active_p (void)
|
__gthread_active_p (void)
|
{
|
{
|
return 1;
|
return 1;
|
}
|
}
|
|
|
#endif /* SUPPORTS_WEAK */
|
#endif /* SUPPORTS_WEAK */
|
|
|
#ifdef _LIBOBJC
|
#ifdef _LIBOBJC
|
|
|
/* Key structure for maintaining thread specific storage */
|
/* Key structure for maintaining thread specific storage */
|
static thread_key_t _objc_thread_storage;
|
static thread_key_t _objc_thread_storage;
|
|
|
/* Thread local storage for a single thread */
|
/* Thread local storage for a single thread */
|
static void *thread_local_storage = NULL;
|
static void *thread_local_storage = NULL;
|
|
|
/* Backend initialization functions */
|
/* Backend initialization functions */
|
|
|
/* Initialize the threads subsystem. */
|
/* Initialize the threads subsystem. */
|
static inline int
|
static inline int
|
__gthread_objc_init_thread_system (void)
|
__gthread_objc_init_thread_system (void)
|
{
|
{
|
/* Initialize the thread storage key. */
|
/* Initialize the thread storage key. */
|
if (__gthread_active_p ()
|
if (__gthread_active_p ()
|
&& __gthrw_(thr_keycreate) (&_objc_thread_storage, NULL) == 0)
|
&& __gthrw_(thr_keycreate) (&_objc_thread_storage, NULL) == 0)
|
return 0;
|
return 0;
|
|
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/* Close the threads subsystem. */
|
/* Close the threads subsystem. */
|
static inline int
|
static inline int
|
__gthread_objc_close_thread_system (void)
|
__gthread_objc_close_thread_system (void)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return 0;
|
return 0;
|
else
|
else
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/* Backend thread functions */
|
/* Backend thread functions */
|
|
|
/* Create a new thread of execution. */
|
/* Create a new thread of execution. */
|
static inline objc_thread_t
|
static inline objc_thread_t
|
__gthread_objc_thread_detach (void (*func)(void *), void *arg)
|
__gthread_objc_thread_detach (void (*func)(void *), void *arg)
|
{
|
{
|
objc_thread_t thread_id;
|
objc_thread_t thread_id;
|
thread_t new_thread_id = 0;
|
thread_t new_thread_id = 0;
|
|
|
if (!__gthread_active_p ())
|
if (!__gthread_active_p ())
|
return NULL;
|
return NULL;
|
|
|
if (__gthrw_(thr_create) (NULL, 0, (void *) func, arg,
|
if (__gthrw_(thr_create) (NULL, 0, (void *) func, arg,
|
THR_DETACHED | THR_NEW_LWP,
|
THR_DETACHED | THR_NEW_LWP,
|
&new_thread_id) == 0)
|
&new_thread_id) == 0)
|
thread_id = *(objc_thread_t *) &new_thread_id;
|
thread_id = *(objc_thread_t *) &new_thread_id;
|
else
|
else
|
thread_id = NULL;
|
thread_id = NULL;
|
|
|
return thread_id;
|
return thread_id;
|
}
|
}
|
|
|
/* Set the current thread's priority. */
|
/* Set the current thread's priority. */
|
static inline int
|
static inline int
|
__gthread_objc_thread_set_priority (int priority)
|
__gthread_objc_thread_set_priority (int priority)
|
{
|
{
|
int sys_priority = 0;
|
int sys_priority = 0;
|
|
|
if (!__gthread_active_p ())
|
if (!__gthread_active_p ())
|
return -1;
|
return -1;
|
|
|
switch (priority)
|
switch (priority)
|
{
|
{
|
case OBJC_THREAD_INTERACTIVE_PRIORITY:
|
case OBJC_THREAD_INTERACTIVE_PRIORITY:
|
sys_priority = 300;
|
sys_priority = 300;
|
break;
|
break;
|
default:
|
default:
|
case OBJC_THREAD_BACKGROUND_PRIORITY:
|
case OBJC_THREAD_BACKGROUND_PRIORITY:
|
sys_priority = 200;
|
sys_priority = 200;
|
break;
|
break;
|
case OBJC_THREAD_LOW_PRIORITY:
|
case OBJC_THREAD_LOW_PRIORITY:
|
sys_priority = 1000;
|
sys_priority = 1000;
|
break;
|
break;
|
}
|
}
|
|
|
/* Change priority */
|
/* Change priority */
|
if (__gthrw_(thr_setprio) (__gthrw_(thr_self) (), sys_priority) == 0)
|
if (__gthrw_(thr_setprio) (__gthrw_(thr_self) (), sys_priority) == 0)
|
return 0;
|
return 0;
|
else
|
else
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/* Return the current thread's priority. */
|
/* Return the current thread's priority. */
|
static inline int
|
static inline int
|
__gthread_objc_thread_get_priority (void)
|
__gthread_objc_thread_get_priority (void)
|
{
|
{
|
int sys_priority;
|
int sys_priority;
|
|
|
if (!__gthread_active_p ())
|
if (!__gthread_active_p ())
|
return OBJC_THREAD_INTERACTIVE_PRIORITY;
|
return OBJC_THREAD_INTERACTIVE_PRIORITY;
|
|
|
if (__gthrw_(thr_getprio) (__gthrw_(thr_self) (), &sys_priority) == 0)
|
if (__gthrw_(thr_getprio) (__gthrw_(thr_self) (), &sys_priority) == 0)
|
{
|
{
|
if (sys_priority >= 250)
|
if (sys_priority >= 250)
|
return OBJC_THREAD_INTERACTIVE_PRIORITY;
|
return OBJC_THREAD_INTERACTIVE_PRIORITY;
|
else if (sys_priority >= 150)
|
else if (sys_priority >= 150)
|
return OBJC_THREAD_BACKGROUND_PRIORITY;
|
return OBJC_THREAD_BACKGROUND_PRIORITY;
|
return OBJC_THREAD_LOW_PRIORITY;
|
return OBJC_THREAD_LOW_PRIORITY;
|
}
|
}
|
|
|
/* Couldn't get priority. */
|
/* Couldn't get priority. */
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/* Yield our process time to another thread. */
|
/* Yield our process time to another thread. */
|
static inline void
|
static inline void
|
__gthread_objc_thread_yield (void)
|
__gthread_objc_thread_yield (void)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
__gthrw_(thr_yield) ();
|
__gthrw_(thr_yield) ();
|
}
|
}
|
|
|
/* Terminate the current thread. */
|
/* Terminate the current thread. */
|
static inline int
|
static inline int
|
__gthread_objc_thread_exit (void)
|
__gthread_objc_thread_exit (void)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
/* exit the thread */
|
/* exit the thread */
|
__gthrw_(thr_exit) (&__objc_thread_exit_status);
|
__gthrw_(thr_exit) (&__objc_thread_exit_status);
|
|
|
/* Failed if we reached here */
|
/* Failed if we reached here */
|
return -1;
|
return -1;
|
}
|
}
|
|
|
/* Returns an integer value which uniquely describes a thread. */
|
/* Returns an integer value which uniquely describes a thread. */
|
static inline objc_thread_t
|
static inline objc_thread_t
|
__gthread_objc_thread_id (void)
|
__gthread_objc_thread_id (void)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return (objc_thread_t) __gthrw_(thr_self) ();
|
return (objc_thread_t) __gthrw_(thr_self) ();
|
else
|
else
|
return (objc_thread_t) 1;
|
return (objc_thread_t) 1;
|
}
|
}
|
|
|
/* Sets the thread's local storage pointer. */
|
/* Sets the thread's local storage pointer. */
|
static inline int
|
static inline int
|
__gthread_objc_thread_set_data (void *value)
|
__gthread_objc_thread_set_data (void *value)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
{
|
{
|
if (__gthrw_(thr_setspecific) (_objc_thread_storage, value) == 0)
|
if (__gthrw_(thr_setspecific) (_objc_thread_storage, value) == 0)
|
return 0;
|
return 0;
|
else
|
else
|
return -1;
|
return -1;
|
}
|
}
|
else
|
else
|
{
|
{
|
thread_local_storage = value;
|
thread_local_storage = value;
|
return 0;
|
return 0;
|
}
|
}
|
}
|
}
|
|
|
/* Returns the thread's local storage pointer. */
|
/* Returns the thread's local storage pointer. */
|
static inline void *
|
static inline void *
|
__gthread_objc_thread_get_data (void)
|
__gthread_objc_thread_get_data (void)
|
{
|
{
|
void *value = NULL;
|
void *value = NULL;
|
|
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
{
|
{
|
if (__gthrw_(thr_getspecific) (_objc_thread_storage, &value) == 0)
|
if (__gthrw_(thr_getspecific) (_objc_thread_storage, &value) == 0)
|
return value;
|
return value;
|
else
|
else
|
return NULL;
|
return NULL;
|
}
|
}
|
else
|
else
|
return thread_local_storage;
|
return thread_local_storage;
|
}
|
}
|
|
|
/* Backend mutex functions */
|
/* Backend mutex functions */
|
|
|
/* Allocate a mutex. */
|
/* Allocate a mutex. */
|
static inline int
|
static inline int
|
__gthread_objc_mutex_allocate (objc_mutex_t mutex)
|
__gthread_objc_mutex_allocate (objc_mutex_t mutex)
|
{
|
{
|
if (__gthread_active_p ()
|
if (__gthread_active_p ()
|
&& __gthrw_(mutex_init) ((mutex_t *) (&(mutex->backend)), USYNC_THREAD, 0))
|
&& __gthrw_(mutex_init) ((mutex_t *) (&(mutex->backend)), USYNC_THREAD, 0))
|
return -1;
|
return -1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Deallocate a mutex. */
|
/* Deallocate a mutex. */
|
static inline int
|
static inline int
|
__gthread_objc_mutex_deallocate (objc_mutex_t mutex)
|
__gthread_objc_mutex_deallocate (objc_mutex_t mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
__gthrw_(mutex_destroy) ((mutex_t *) (&(mutex->backend)));
|
__gthrw_(mutex_destroy) ((mutex_t *) (&(mutex->backend)));
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Grab a lock on a mutex. */
|
/* Grab a lock on a mutex. */
|
static inline int
|
static inline int
|
__gthread_objc_mutex_lock (objc_mutex_t mutex)
|
__gthread_objc_mutex_lock (objc_mutex_t mutex)
|
{
|
{
|
if (__gthread_active_p ()
|
if (__gthread_active_p ()
|
&& __gthrw_(mutex_lock) ((mutex_t *) (&(mutex->backend))) != 0)
|
&& __gthrw_(mutex_lock) ((mutex_t *) (&(mutex->backend))) != 0)
|
return -1;
|
return -1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Try to grab a lock on a mutex. */
|
/* Try to grab a lock on a mutex. */
|
static inline int
|
static inline int
|
__gthread_objc_mutex_trylock (objc_mutex_t mutex)
|
__gthread_objc_mutex_trylock (objc_mutex_t mutex)
|
{
|
{
|
if (__gthread_active_p ()
|
if (__gthread_active_p ()
|
&& __gthrw_(mutex_trylock) ((mutex_t *) (&(mutex->backend))) != 0)
|
&& __gthrw_(mutex_trylock) ((mutex_t *) (&(mutex->backend))) != 0)
|
return -1;
|
return -1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Unlock the mutex */
|
/* Unlock the mutex */
|
static inline int
|
static inline int
|
__gthread_objc_mutex_unlock (objc_mutex_t mutex)
|
__gthread_objc_mutex_unlock (objc_mutex_t mutex)
|
{
|
{
|
if (__gthread_active_p ()
|
if (__gthread_active_p ()
|
&& __gthrw_(mutex_unlock) ((mutex_t *) (&(mutex->backend))) != 0)
|
&& __gthrw_(mutex_unlock) ((mutex_t *) (&(mutex->backend))) != 0)
|
return -1;
|
return -1;
|
|
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Backend condition mutex functions */
|
/* Backend condition mutex functions */
|
|
|
/* Allocate a condition. */
|
/* Allocate a condition. */
|
static inline int
|
static inline int
|
__gthread_objc_condition_allocate (objc_condition_t condition)
|
__gthread_objc_condition_allocate (objc_condition_t condition)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(cond_init) ((cond_t *) (&(condition->backend)), USYNC_THREAD,
|
return __gthrw_(cond_init) ((cond_t *) (&(condition->backend)), USYNC_THREAD,
|
NULL);
|
NULL);
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Deallocate a condition. */
|
/* Deallocate a condition. */
|
static inline int
|
static inline int
|
__gthread_objc_condition_deallocate (objc_condition_t condition)
|
__gthread_objc_condition_deallocate (objc_condition_t condition)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(cond_destroy) ((cond_t *) (&(condition->backend)));
|
return __gthrw_(cond_destroy) ((cond_t *) (&(condition->backend)));
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Wait on the condition */
|
/* Wait on the condition */
|
static inline int
|
static inline int
|
__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
|
__gthread_objc_condition_wait (objc_condition_t condition, objc_mutex_t mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(cond_wait) ((cond_t *) (&(condition->backend)),
|
return __gthrw_(cond_wait) ((cond_t *) (&(condition->backend)),
|
(mutex_t *) (&(mutex->backend)));
|
(mutex_t *) (&(mutex->backend)));
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Wake up all threads waiting on this condition. */
|
/* Wake up all threads waiting on this condition. */
|
static inline int
|
static inline int
|
__gthread_objc_condition_broadcast (objc_condition_t condition)
|
__gthread_objc_condition_broadcast (objc_condition_t condition)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(cond_broadcast) ((cond_t *) (&(condition->backend)));
|
return __gthrw_(cond_broadcast) ((cond_t *) (&(condition->backend)));
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
/* Wake up one thread waiting on this condition. */
|
/* Wake up one thread waiting on this condition. */
|
static inline int
|
static inline int
|
__gthread_objc_condition_signal (objc_condition_t condition)
|
__gthread_objc_condition_signal (objc_condition_t condition)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(cond_signal) ((cond_t *) (&(condition->backend)));
|
return __gthrw_(cond_signal) ((cond_t *) (&(condition->backend)));
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
#else /* _LIBOBJC */
|
#else /* _LIBOBJC */
|
|
|
static inline int
|
static inline int
|
__gthread_once (__gthread_once_t *once, void (*func) (void))
|
__gthread_once (__gthread_once_t *once, void (*func) (void))
|
{
|
{
|
if (! __gthread_active_p ())
|
if (! __gthread_active_p ())
|
return -1;
|
return -1;
|
|
|
if (once == 0 || func == 0)
|
if (once == 0 || func == 0)
|
return EINVAL;
|
return EINVAL;
|
|
|
if (once->once == 0)
|
if (once->once == 0)
|
{
|
{
|
int status = __gthrw_(mutex_lock) (&once->mutex);
|
int status = __gthrw_(mutex_lock) (&once->mutex);
|
if (status != 0)
|
if (status != 0)
|
return status;
|
return status;
|
if (once->once == 0)
|
if (once->once == 0)
|
{
|
{
|
(*func) ();
|
(*func) ();
|
once->once++;
|
once->once++;
|
}
|
}
|
__gthrw_(mutex_unlock) (&once->mutex);
|
__gthrw_(mutex_unlock) (&once->mutex);
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
|
__gthread_key_create (__gthread_key_t *key, void (*dtor) (void *))
|
{
|
{
|
/* Solaris 2.5 contains thr_* routines no-op in libc, so test if we actually
|
/* Solaris 2.5 contains thr_* routines no-op in libc, so test if we actually
|
got a reasonable key value, and if not, fail. */
|
got a reasonable key value, and if not, fail. */
|
*key = (__gthread_key_t)-1;
|
*key = (__gthread_key_t)-1;
|
if (__gthrw_(thr_keycreate) (key, dtor) != 0 || *key == (__gthread_key_t)-1)
|
if (__gthrw_(thr_keycreate) (key, dtor) != 0 || *key == (__gthread_key_t)-1)
|
return -1;
|
return -1;
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_key_delete (__gthread_key_t UNUSED (key))
|
__gthread_key_delete (__gthread_key_t UNUSED (key))
|
{
|
{
|
/* Not possible. */
|
/* Not possible. */
|
return -1;
|
return -1;
|
}
|
}
|
|
|
static inline void *
|
static inline void *
|
__gthread_getspecific (__gthread_key_t key)
|
__gthread_getspecific (__gthread_key_t key)
|
{
|
{
|
void *ptr;
|
void *ptr;
|
if (__gthrw_(thr_getspecific) (key, &ptr) == 0)
|
if (__gthrw_(thr_getspecific) (key, &ptr) == 0)
|
return ptr;
|
return ptr;
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_setspecific (__gthread_key_t key, const void *ptr)
|
__gthread_setspecific (__gthread_key_t key, const void *ptr)
|
{
|
{
|
return __gthrw_(thr_setspecific) (key, (void *) ptr);
|
return __gthrw_(thr_setspecific) (key, (void *) ptr);
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_mutex_lock (__gthread_mutex_t *mutex)
|
__gthread_mutex_lock (__gthread_mutex_t *mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(mutex_lock) (mutex);
|
return __gthrw_(mutex_lock) (mutex);
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
|
__gthread_mutex_trylock (__gthread_mutex_t *mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(mutex_trylock) (mutex);
|
return __gthrw_(mutex_trylock) (mutex);
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
|
__gthread_mutex_unlock (__gthread_mutex_t *mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
return __gthrw_(mutex_unlock) (mutex);
|
return __gthrw_(mutex_unlock) (mutex);
|
else
|
else
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex)
|
__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *mutex)
|
{
|
{
|
mutex->depth = 0;
|
mutex->depth = 0;
|
mutex->owner = (thread_t) 0;
|
mutex->owner = (thread_t) 0;
|
return __gthrw_(mutex_init) (&mutex->actual, USYNC_THREAD, 0);
|
return __gthrw_(mutex_init) (&mutex->actual, USYNC_THREAD, 0);
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
|
__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
{
|
{
|
thread_t me = __gthrw_(thr_self) ();
|
thread_t me = __gthrw_(thr_self) ();
|
|
|
if (mutex->owner != me)
|
if (mutex->owner != me)
|
{
|
{
|
__gthrw_(mutex_lock) (&mutex->actual);
|
__gthrw_(mutex_lock) (&mutex->actual);
|
mutex->owner = me;
|
mutex->owner = me;
|
}
|
}
|
|
|
mutex->depth++;
|
mutex->depth++;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
|
__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
{
|
{
|
thread_t me = __gthrw_(thr_self) ();
|
thread_t me = __gthrw_(thr_self) ();
|
|
|
if (mutex->owner != me)
|
if (mutex->owner != me)
|
{
|
{
|
if (__gthrw_(mutex_trylock) (&mutex->actual))
|
if (__gthrw_(mutex_trylock) (&mutex->actual))
|
return 1;
|
return 1;
|
mutex->owner = me;
|
mutex->owner = me;
|
}
|
}
|
|
|
mutex->depth++;
|
mutex->depth++;
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
static inline int
|
static inline int
|
__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
|
__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *mutex)
|
{
|
{
|
if (__gthread_active_p ())
|
if (__gthread_active_p ())
|
{
|
{
|
if (--mutex->depth == 0)
|
if (--mutex->depth == 0)
|
{
|
{
|
mutex->owner = (thread_t) 0;
|
mutex->owner = (thread_t) 0;
|
__gthrw_(mutex_unlock) (&mutex->actual);
|
__gthrw_(mutex_unlock) (&mutex->actual);
|
}
|
}
|
}
|
}
|
return 0;
|
return 0;
|
}
|
}
|
|
|
#endif /* _LIBOBJC */
|
#endif /* _LIBOBJC */
|
|
|
#undef UNUSED
|
#undef UNUSED
|
|
|
#endif /* ! GCC_GTHR_SOLARIS_H */
|
#endif /* ! GCC_GTHR_SOLARIS_H */
|
|
|
