+++ /dev/null
-/* Threads compatibility routines for libgcc2 and libobjc. */
-/* Compile this one with gcc. */
-/* Copyright (C) 1997, 1999, 2000, 2004, 2005, 2006, 2008, 2009
- 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_SOLARIS_H
-#define GCC_GTHR_SOLARIS_H
-
-/* Solaris threads as found in Solaris 2.[456].
- Actually these are Unix International (UI) threads, but I don't
- know if anyone else implements these. */
-
-#define __GTHREADS 1
-
-#include <thread.h>
-#include <errno.h>
-
-#ifdef __cplusplus
-#define UNUSED(x)
-#else
-#define UNUSED(x) x __attribute__((unused))
-#endif
-
-typedef thread_key_t __gthread_key_t;
-typedef struct {
- mutex_t mutex;
- int once;
-} __gthread_once_t;
-typedef mutex_t __gthread_mutex_t;
-
-typedef struct {
- long depth;
- thread_t owner;
- mutex_t actual;
-} __gthread_recursive_mutex_t;
-
-#define __GTHREAD_ONCE_INIT { DEFAULTMUTEX, 0 }
-#define __GTHREAD_MUTEX_INIT DEFAULTMUTEX
-#define __GTHREAD_RECURSIVE_MUTEX_INIT_FUNCTION __gthread_recursive_mutex_init_function
-
-#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
-# define __gthrw(name) \
- static __typeof(name) __gthrw_ ## name __attribute__ ((__weakref__(#name)));
-# define __gthrw_(name) __gthrw_ ## name
-#else
-# define __gthrw(name)
-# define __gthrw_(name) name
-#endif
-
-__gthrw(thr_keycreate)
-__gthrw(thr_getspecific)
-__gthrw(thr_setspecific)
-__gthrw(thr_create)
-__gthrw(thr_self)
-
-__gthrw(mutex_init)
-__gthrw(mutex_destroy)
-__gthrw(mutex_lock)
-__gthrw(mutex_trylock)
-__gthrw(mutex_unlock)
-
-#ifdef _LIBOBJC
-__gthrw(thr_exit)
-__gthrw(thr_getprio)
-__gthrw(thr_setprio)
-__gthrw(thr_yield)
-
-__gthrw(cond_init)
-__gthrw(cond_destroy)
-__gthrw(cond_wait)
-__gthrw(cond_broadcast)
-__gthrw(cond_signal)
-
-#endif
-
-#if SUPPORTS_WEAK && GTHREAD_USE_WEAK
-
-/* This will not actually work in Solaris 2.5, since libc contains
- dummy symbols of all thr_* routines. */
-
-static inline int
-__gthread_active_p (void)
-{
- static void *const __gthread_active_ptr
- = __extension__ (void *) &__gthrw_(thr_create);
- return __gthread_active_ptr != 0;
-}
-
-#else /* not SUPPORTS_WEAK */
-
-static inline int
-__gthread_active_p (void)
-{
- return 1;
-}
-
-#endif /* SUPPORTS_WEAK */
-
-#ifdef _LIBOBJC
-
-/* Key structure for maintaining thread specific storage */
-static thread_key_t _objc_thread_storage;
-
-/* 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)
-{
- /* Initialize the thread storage key. */
- if (__gthread_active_p ()
- && __gthrw_(thr_keycreate) (&_objc_thread_storage, NULL) == 0)
- return 0;
-
- return -1;
-}
-
-/* Close the threads subsystem. */
-static inline int
-__gthread_objc_close_thread_system (void)
-{
- if (__gthread_active_p ())
- return 0;
- else
- 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;
- thread_t new_thread_id = 0;
-
- if (!__gthread_active_p ())
- return NULL;
-
- if (__gthrw_(thr_create) (NULL, 0, (void *) func, arg,
- THR_DETACHED | THR_NEW_LWP,
- &new_thread_id) == 0)
- thread_id = *(objc_thread_t *) &new_thread_id;
- else
- thread_id = NULL;
-
- return thread_id;
-}
-
-/* Set the current thread's priority. */
-static inline int
-__gthread_objc_thread_set_priority (int priority)
-{
- int sys_priority = 0;
-
- if (!__gthread_active_p ())
- return -1;
-
- switch (priority)
- {
- case OBJC_THREAD_INTERACTIVE_PRIORITY:
- sys_priority = 300;
- break;
- default:
- case OBJC_THREAD_BACKGROUND_PRIORITY:
- sys_priority = 200;
- break;
- case OBJC_THREAD_LOW_PRIORITY:
- sys_priority = 1000;
- break;
- }
-
- /* Change priority */
- if (__gthrw_(thr_setprio) (__gthrw_(thr_self) (), sys_priority) == 0)
- return 0;
- else
- return -1;
-}
-
-/* Return the current thread's priority. */
-static inline int
-__gthread_objc_thread_get_priority (void)
-{
- int sys_priority;
-
- if (!__gthread_active_p ())
- return OBJC_THREAD_INTERACTIVE_PRIORITY;
-
- if (__gthrw_(thr_getprio) (__gthrw_(thr_self) (), &sys_priority) == 0)
- {
- if (sys_priority >= 250)
- return OBJC_THREAD_INTERACTIVE_PRIORITY;
- else if (sys_priority >= 150)
- return OBJC_THREAD_BACKGROUND_PRIORITY;
- return OBJC_THREAD_LOW_PRIORITY;
- }
-
- /* Couldn't get priority. */
- return -1;
-}
-
-/* Yield our process time to another thread. */
-static inline void
-__gthread_objc_thread_yield (void)
-{
- if (__gthread_active_p ())
- __gthrw_(thr_yield) ();
-}
-
-/* Terminate the current thread. */
-static inline int
-__gthread_objc_thread_exit (void)
-{
- if (__gthread_active_p ())
- /* exit the thread */
- __gthrw_(thr_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_(thr_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 ())
- {
- if (__gthrw_(thr_setspecific) (_objc_thread_storage, value) == 0)
- return 0;
- else
- return -1;
- }
- else
- {
- thread_local_storage = value;
- return 0;
- }
-}
-
-/* Returns the thread's local storage pointer. */
-static inline void *
-__gthread_objc_thread_get_data (void)
-{
- void *value = NULL;
-
- if (__gthread_active_p ())
- {
- if (__gthrw_(thr_getspecific) (_objc_thread_storage, &value) == 0)
- return value;
- else
- return NULL;
- }
- 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 ()
- && __gthrw_(mutex_init) ((mutex_t *) (&(mutex->backend)), USYNC_THREAD, 0))
- return -1;
-
- return 0;
-}
-
-/* Deallocate a mutex. */
-static inline int
-__gthread_objc_mutex_deallocate (objc_mutex_t mutex)
-{
- if (__gthread_active_p ())
- __gthrw_(mutex_destroy) ((mutex_t *) (&(mutex->backend)));
-
- return 0;
-}
-
-/* Grab a lock on a mutex. */
-static inline int
-__gthread_objc_mutex_lock (objc_mutex_t mutex)
-{
- if (__gthread_active_p ()
- && __gthrw_(mutex_lock) ((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_(mutex_trylock) ((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_(mutex_unlock) ((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 ())
- return __gthrw_(cond_init) ((cond_t *) (&(condition->backend)), USYNC_THREAD,
- NULL);
- else
- return 0;
-}
-
-/* Deallocate a condition. */
-static inline int
-__gthread_objc_condition_deallocate (objc_condition_t condition)
-{
- if (__gthread_active_p ())
- return __gthrw_(cond_destroy) ((cond_t *) (&(condition->backend)));
- else
- 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_(cond_wait) ((cond_t *) (&(condition->backend)),
- (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_(cond_broadcast) ((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_(cond_signal) ((cond_t *) (&(condition->backend)));
- else
- return 0;
-}
-
-#else /* _LIBOBJC */
-
-static inline int
-__gthread_once (__gthread_once_t *__once, void (*__func) (void))
-{
- if (! __gthread_active_p ())
- return -1;
-
- if (__once == 0 || __func == 0)
- return EINVAL;
-
- if (__once->once == 0)
- {
- int __status = __gthrw_(mutex_lock) (&__once->mutex);
- if (__status != 0)
- return __status;
- if (__once->once == 0)
- {
- (*__func) ();
- __once->once++;
- }
- __gthrw_(mutex_unlock) (&__once->mutex);
- }
- return 0;
-}
-
-static inline int
-__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
- got a reasonable key value, and if not, fail. */
- *__key = (__gthread_key_t)-1;
- if (__gthrw_(thr_keycreate) (__key, __dtor) != 0
- || *__key == (__gthread_key_t)-1)
- return -1;
- else
- return 0;
-}
-
-static inline int
-__gthread_key_delete (__gthread_key_t UNUSED (__key))
-{
- /* Not possible. */
- return -1;
-}
-
-static inline void *
-__gthread_getspecific (__gthread_key_t __key)
-{
- void *__ptr;
- if (__gthrw_(thr_getspecific) (__key, &__ptr) == 0)
- return __ptr;
- else
- return 0;
-}
-
-static inline int
-__gthread_setspecific (__gthread_key_t __key, const void *__ptr)
-{
- return __gthrw_(thr_setspecific) (__key, (void *) __ptr);
-}
-
-static inline int
-__gthread_mutex_destroy (__gthread_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- return __gthrw_(mutex_destroy) (__mutex);
- else
- return 0;
-}
-
-static inline int
-__gthread_mutex_lock (__gthread_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- return __gthrw_(mutex_lock) (__mutex);
- else
- return 0;
-}
-
-static inline int
-__gthread_mutex_trylock (__gthread_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- return __gthrw_(mutex_trylock) (__mutex);
- else
- return 0;
-}
-
-static inline int
-__gthread_mutex_unlock (__gthread_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- return __gthrw_(mutex_unlock) (__mutex);
- else
- return 0;
-}
-
-static inline int
-__gthread_recursive_mutex_init_function (__gthread_recursive_mutex_t *__mutex)
-{
- __mutex->depth = 0;
- __mutex->owner = (thread_t) 0;
- return __gthrw_(mutex_init) (&__mutex->actual, USYNC_THREAD, 0);
-}
-
-static inline int
-__gthread_recursive_mutex_lock (__gthread_recursive_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- {
- thread_t __me = __gthrw_(thr_self) ();
-
- if (__mutex->owner != __me)
- {
- __gthrw_(mutex_lock) (&__mutex->actual);
- __mutex->owner = __me;
- }
-
- __mutex->depth++;
- }
- return 0;
-}
-
-static inline int
-__gthread_recursive_mutex_trylock (__gthread_recursive_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- {
- thread_t __me = __gthrw_(thr_self) ();
-
- if (__mutex->owner != __me)
- {
- if (__gthrw_(mutex_trylock) (&__mutex->actual))
- return 1;
- __mutex->owner = __me;
- }
-
- __mutex->depth++;
- }
- return 0;
-}
-
-static inline int
-__gthread_recursive_mutex_unlock (__gthread_recursive_mutex_t *__mutex)
-{
- if (__gthread_active_p ())
- {
- if (--__mutex->depth == 0)
- {
- __mutex->owner = (thread_t) 0;
- __gthrw_(mutex_unlock) (&__mutex->actual);
- }
- }
- return 0;
-}
-
-#endif /* _LIBOBJC */
-
-#undef UNUSED
-
-#endif /* ! GCC_GTHR_SOLARIS_H */
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