X-Git-Url: http://review.tizen.org/git/?a=blobdiff_plain;f=glib%2Fgthread.h;h=3f026f6311443cdd225e5aa38e161fa4308a3ba8;hb=2a53b4d0e2c98a14aedf31e38f0ad1fb2e8fe26f;hp=af1e301ebced96198ce1d37a72efd7464018f8e0;hpb=304c030d02aaff375e2641d04fa1ebb577bbea2e;p=platform%2Fupstream%2Fglib.git diff --git a/glib/gthread.h b/glib/gthread.h index af1e301..3f026f6 100644 --- a/glib/gthread.h +++ b/glib/gthread.h @@ -1,20 +1,18 @@ /* GLIB - Library of useful routines for C programming * Copyright (C) 1995-1997 Peter Mattis, Spencer Kimball and Josh MacDonald * - * This library is free software; you can redistribute it and/or - * modify it under the terms of the GNU Lesser General Public - * License as published by the Free Software Foundation; either - * version 2 of the License, or (at your option) any later version. + * This library is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as + * published by the Free Software Foundation; either version 2 of the + * licence, or (at your option) any later version. * - * This library 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 + * This library 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 * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public - * License along with this library; if not, write to the - * Free Software Foundation, Inc., 59 Temple Place - Suite 330, - * Boston, MA 02111-1307, USA. + * License along with this library; if not, see . */ /* @@ -24,25 +22,21 @@ * GLib at ftp://ftp.gtk.org/pub/gtk/. */ -#if defined(G_DISABLE_SINGLE_INCLUDES) && !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) -#error "Only can be included directly." -#endif - #ifndef __G_THREAD_H__ #define __G_THREAD_H__ +#if !defined (__GLIB_H_INSIDE__) && !defined (GLIB_COMPILATION) +#error "Only can be included directly." +#endif + +#include #include -#include -#include /* for G_INLINE_FUNC */ -#include /* for g_atomic_pointer_get */ G_BEGIN_DECLS -/* GLib Thread support - */ - -extern GQuark g_thread_error_quark (void); #define G_THREAD_ERROR g_thread_error_quark () +GLIB_AVAILABLE_IN_ALL +GQuark g_thread_error_quark (void); typedef enum { @@ -51,272 +45,193 @@ typedef enum typedef gpointer (*GThreadFunc) (gpointer data); -typedef enum -{ - G_THREAD_PRIORITY_LOW, - G_THREAD_PRIORITY_NORMAL, - G_THREAD_PRIORITY_HIGH, - G_THREAD_PRIORITY_URGENT -} GThreadPriority; - typedef struct _GThread GThread; -struct _GThread -{ - /*< private >*/ - GThreadFunc func; - gpointer data; - gboolean joinable; - GThreadPriority priority; -}; -typedef struct _GMutex GMutex; +typedef union _GMutex GMutex; +typedef struct _GRecMutex GRecMutex; +typedef struct _GRWLock GRWLock; typedef struct _GCond GCond; typedef struct _GPrivate GPrivate; -typedef struct _GStaticPrivate GStaticPrivate; +typedef struct _GOnce GOnce; -typedef struct _GThreadFunctions GThreadFunctions; -struct _GThreadFunctions +union _GMutex { - GMutex* (*mutex_new) (void); - void (*mutex_lock) (GMutex *mutex); - gboolean (*mutex_trylock) (GMutex *mutex); - void (*mutex_unlock) (GMutex *mutex); - void (*mutex_free) (GMutex *mutex); - GCond* (*cond_new) (void); - void (*cond_signal) (GCond *cond); - void (*cond_broadcast) (GCond *cond); - void (*cond_wait) (GCond *cond, - GMutex *mutex); - gboolean (*cond_timed_wait) (GCond *cond, - GMutex *mutex, - GTimeVal *end_time); - void (*cond_free) (GCond *cond); - GPrivate* (*private_new) (GDestroyNotify destructor); - gpointer (*private_get) (GPrivate *private_key); - void (*private_set) (GPrivate *private_key, - gpointer data); - void (*thread_create) (GThreadFunc func, - gpointer data, - gulong stack_size, - gboolean joinable, - gboolean bound, - GThreadPriority priority, - gpointer thread, - GError **error); - void (*thread_yield) (void); - void (*thread_join) (gpointer thread); - void (*thread_exit) (void); - void (*thread_set_priority)(gpointer thread, - GThreadPriority priority); - void (*thread_self) (gpointer thread); - gboolean (*thread_equal) (gpointer thread1, - gpointer thread2); + /*< private >*/ + gpointer p; + guint i[2]; }; -GLIB_VAR GThreadFunctions g_thread_functions_for_glib_use; -GLIB_VAR gboolean g_thread_use_default_impl; -GLIB_VAR gboolean g_threads_got_initialized; - -GLIB_VAR guint64 (*g_thread_gettime) (void); - -/* initializes the mutex/cond/private implementation for glib, might - * only be called once, and must not be called directly or indirectly - * from another glib-function, e.g. as a callback. - */ -void g_thread_init (GThreadFunctions *vtable); - -/* Errorcheck mutexes. If you define G_ERRORCHECK_MUTEXES, then all - * mutexes will check for re-locking and re-unlocking */ - -/* Initialize thread system with errorcheck mutexes. vtable must be - * NULL. Do not call directly. Use #define G_ERRORCHECK_MUTEXES - * instead. - */ -void g_thread_init_with_errorcheck_mutexes (GThreadFunctions* vtable); - -/* A random number to recognize debug calls to g_mutex_... */ -#define G_MUTEX_DEBUG_MAGIC 0xf8e18ad7 - -#ifdef G_ERRORCHECK_MUTEXES -#define g_thread_init(vtable) g_thread_init_with_errorcheck_mutexes (vtable) -#endif - -/* internal function for fallback static mutex implementation */ -GMutex* g_static_mutex_get_mutex_impl (GMutex **mutex); - -#define g_static_mutex_get_mutex_impl_shortcut(mutex) \ - (g_atomic_pointer_get ((gpointer*)(void*)mutex) ? *(mutex) : \ - g_static_mutex_get_mutex_impl (mutex)) - -/* shorthands for conditional and unconditional function calls */ - -#define G_THREAD_UF(op, arglist) \ - (*g_thread_functions_for_glib_use . op) arglist -#define G_THREAD_CF(op, fail, arg) \ - (g_thread_supported () ? G_THREAD_UF (op, arg) : (fail)) -#define G_THREAD_ECF(op, fail, mutex, type) \ - (g_thread_supported () ? \ - ((type(*)(GMutex*, const gulong, gchar const*)) \ - (*g_thread_functions_for_glib_use . op)) \ - (mutex, G_MUTEX_DEBUG_MAGIC, G_STRLOC) : (fail)) - -#ifndef G_ERRORCHECK_MUTEXES -# define g_mutex_lock(mutex) \ - G_THREAD_CF (mutex_lock, (void)0, (mutex)) -# define g_mutex_trylock(mutex) \ - G_THREAD_CF (mutex_trylock, TRUE, (mutex)) -# define g_mutex_unlock(mutex) \ - G_THREAD_CF (mutex_unlock, (void)0, (mutex)) -# define g_mutex_free(mutex) \ - G_THREAD_CF (mutex_free, (void)0, (mutex)) -# define g_cond_wait(cond, mutex) \ - G_THREAD_CF (cond_wait, (void)0, (cond, mutex)) -# define g_cond_timed_wait(cond, mutex, abs_time) \ - G_THREAD_CF (cond_timed_wait, TRUE, (cond, mutex, abs_time)) -#else /* G_ERRORCHECK_MUTEXES */ -# define g_mutex_lock(mutex) \ - G_THREAD_ECF (mutex_lock, (void)0, (mutex), void) -# define g_mutex_trylock(mutex) \ - G_THREAD_ECF (mutex_trylock, TRUE, (mutex), gboolean) -# define g_mutex_unlock(mutex) \ - G_THREAD_ECF (mutex_unlock, (void)0, (mutex), void) -# define g_mutex_free(mutex) \ - G_THREAD_ECF (mutex_free, (void)0, (mutex), void) -# define g_cond_wait(cond, mutex) \ - (g_thread_supported () ? ((void(*)(GCond*, GMutex*, gulong, gchar*))\ - g_thread_functions_for_glib_use.cond_wait) \ - (cond, mutex, G_MUTEX_DEBUG_MAGIC, G_STRLOC) : (void) 0) -# define g_cond_timed_wait(cond, mutex, abs_time) \ - (g_thread_supported () ? \ - ((gboolean(*)(GCond*, GMutex*, GTimeVal*, gulong, gchar*)) \ - g_thread_functions_for_glib_use.cond_timed_wait) \ - (cond, mutex, abs_time, G_MUTEX_DEBUG_MAGIC, G_STRLOC) : TRUE) -#endif /* G_ERRORCHECK_MUTEXES */ - -#define g_thread_supported() (g_threads_got_initialized) -#define g_mutex_new() G_THREAD_UF (mutex_new, ()) -#define g_cond_new() G_THREAD_UF (cond_new, ()) -#define g_cond_signal(cond) G_THREAD_CF (cond_signal, (void)0, (cond)) -#define g_cond_broadcast(cond) G_THREAD_CF (cond_broadcast, (void)0, (cond)) -#define g_cond_free(cond) G_THREAD_CF (cond_free, (void)0, (cond)) -#define g_private_new(destructor) G_THREAD_UF (private_new, (destructor)) -#define g_private_get(private_key) G_THREAD_CF (private_get, \ - ((gpointer)private_key), \ - (private_key)) -#define g_private_set(private_key, value) G_THREAD_CF (private_set, \ - (void) (private_key = \ - (GPrivate*) (value)), \ - (private_key, value)) -#define g_thread_yield() G_THREAD_CF (thread_yield, (void)0, ()) - -#define g_thread_create(func, data, joinable, error) \ - (g_thread_create_full (func, data, 0, joinable, FALSE, \ - G_THREAD_PRIORITY_NORMAL, error)) - -GThread* g_thread_create_full (GThreadFunc func, - gpointer data, - gulong stack_size, - gboolean joinable, - gboolean bound, - GThreadPriority priority, - GError **error); -GThread* g_thread_self (void); -void g_thread_exit (gpointer retval); -gpointer g_thread_join (GThread *thread); - -void g_thread_set_priority (GThread *thread, - GThreadPriority priority); - -/* GStaticMutexes can be statically initialized with the value - * G_STATIC_MUTEX_INIT, and then they can directly be used, that is - * much easier, than having to explicitly allocate the mutex before - * use - */ -#define g_static_mutex_lock(mutex) \ - g_mutex_lock (g_static_mutex_get_mutex (mutex)) -#define g_static_mutex_trylock(mutex) \ - g_mutex_trylock (g_static_mutex_get_mutex (mutex)) -#define g_static_mutex_unlock(mutex) \ - g_mutex_unlock (g_static_mutex_get_mutex (mutex)) -void g_static_mutex_init (GStaticMutex *mutex); -void g_static_mutex_free (GStaticMutex *mutex); - -struct _GStaticPrivate +struct _GRWLock { /*< private >*/ - guint index; + gpointer p; + guint i[2]; }; -#define G_STATIC_PRIVATE_INIT { 0 } -void g_static_private_init (GStaticPrivate *private_key); -gpointer g_static_private_get (GStaticPrivate *private_key); -void g_static_private_set (GStaticPrivate *private_key, - gpointer data, - GDestroyNotify notify); -void g_static_private_free (GStaticPrivate *private_key); - -typedef struct _GStaticRecMutex GStaticRecMutex; -struct _GStaticRecMutex + +struct _GCond { /*< private >*/ - GStaticMutex mutex; - guint depth; - GSystemThread owner; + gpointer p; + guint i[2]; }; -#define G_STATIC_REC_MUTEX_INIT { G_STATIC_MUTEX_INIT } -void g_static_rec_mutex_init (GStaticRecMutex *mutex); -void g_static_rec_mutex_lock (GStaticRecMutex *mutex); -gboolean g_static_rec_mutex_trylock (GStaticRecMutex *mutex); -void g_static_rec_mutex_unlock (GStaticRecMutex *mutex); -void g_static_rec_mutex_lock_full (GStaticRecMutex *mutex, - guint depth); -guint g_static_rec_mutex_unlock_full (GStaticRecMutex *mutex); -void g_static_rec_mutex_free (GStaticRecMutex *mutex); - -typedef struct _GStaticRWLock GStaticRWLock; -struct _GStaticRWLock +struct _GRecMutex { /*< private >*/ - GStaticMutex mutex; - GCond *read_cond; - GCond *write_cond; - guint read_counter; - gboolean have_writer; - guint want_to_read; - guint want_to_write; + gpointer p; + guint i[2]; }; -#define G_STATIC_RW_LOCK_INIT { G_STATIC_MUTEX_INIT, NULL, NULL, 0, FALSE, 0, 0 } - -void g_static_rw_lock_init (GStaticRWLock* lock); -void g_static_rw_lock_reader_lock (GStaticRWLock* lock); -gboolean g_static_rw_lock_reader_trylock (GStaticRWLock* lock); -void g_static_rw_lock_reader_unlock (GStaticRWLock* lock); -void g_static_rw_lock_writer_lock (GStaticRWLock* lock); -gboolean g_static_rw_lock_writer_trylock (GStaticRWLock* lock); -void g_static_rw_lock_writer_unlock (GStaticRWLock* lock); -void g_static_rw_lock_free (GStaticRWLock* lock); - -void g_thread_foreach (GFunc thread_func, - gpointer user_data); +#define G_PRIVATE_INIT(notify) { NULL, (notify), { NULL, NULL } } +struct _GPrivate +{ + /*< private >*/ + gpointer p; + GDestroyNotify notify; + gpointer future[2]; +}; typedef enum { G_ONCE_STATUS_NOTCALLED, G_ONCE_STATUS_PROGRESS, - G_ONCE_STATUS_READY + G_ONCE_STATUS_READY } GOnceStatus; -typedef struct _GOnce GOnce; +#define G_ONCE_INIT { G_ONCE_STATUS_NOTCALLED, NULL } struct _GOnce { volatile GOnceStatus status; volatile gpointer retval; }; -#define G_ONCE_INIT { G_ONCE_STATUS_NOTCALLED, NULL } - -gpointer g_once_impl (GOnce *once, GThreadFunc func, gpointer arg); +#define G_LOCK_NAME(name) g__ ## name ## _lock +#define G_LOCK_DEFINE_STATIC(name) static G_LOCK_DEFINE (name) +#define G_LOCK_DEFINE(name) GMutex G_LOCK_NAME (name) +#define G_LOCK_EXTERN(name) extern GMutex G_LOCK_NAME (name) + +#ifdef G_DEBUG_LOCKS +# define G_LOCK(name) G_STMT_START{ \ + g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \ + "file %s: line %d (%s): locking: %s ", \ + __FILE__, __LINE__, G_STRFUNC, \ + #name); \ + g_mutex_lock (&G_LOCK_NAME (name)); \ + }G_STMT_END +# define G_UNLOCK(name) G_STMT_START{ \ + g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \ + "file %s: line %d (%s): unlocking: %s ", \ + __FILE__, __LINE__, G_STRFUNC, \ + #name); \ + g_mutex_unlock (&G_LOCK_NAME (name)); \ + }G_STMT_END +# define G_TRYLOCK(name) \ + (g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \ + "file %s: line %d (%s): try locking: %s ", \ + __FILE__, __LINE__, G_STRFUNC, \ + #name), g_mutex_trylock (&G_LOCK_NAME (name))) +#else /* !G_DEBUG_LOCKS */ +# define G_LOCK(name) g_mutex_lock (&G_LOCK_NAME (name)) +# define G_UNLOCK(name) g_mutex_unlock (&G_LOCK_NAME (name)) +# define G_TRYLOCK(name) g_mutex_trylock (&G_LOCK_NAME (name)) +#endif /* !G_DEBUG_LOCKS */ + +GLIB_AVAILABLE_IN_2_32 +GThread * g_thread_ref (GThread *thread); +GLIB_AVAILABLE_IN_2_32 +void g_thread_unref (GThread *thread); +GLIB_AVAILABLE_IN_2_32 +GThread * g_thread_new (const gchar *name, + GThreadFunc func, + gpointer data); +GLIB_AVAILABLE_IN_2_32 +GThread * g_thread_try_new (const gchar *name, + GThreadFunc func, + gpointer data, + GError **error); +GLIB_AVAILABLE_IN_ALL +GThread * g_thread_self (void); +GLIB_AVAILABLE_IN_ALL +void g_thread_exit (gpointer retval); +GLIB_AVAILABLE_IN_ALL +gpointer g_thread_join (GThread *thread); +GLIB_AVAILABLE_IN_ALL +void g_thread_yield (void); + + +GLIB_AVAILABLE_IN_2_32 +void g_mutex_init (GMutex *mutex); +GLIB_AVAILABLE_IN_2_32 +void g_mutex_clear (GMutex *mutex); +GLIB_AVAILABLE_IN_ALL +void g_mutex_lock (GMutex *mutex); +GLIB_AVAILABLE_IN_ALL +gboolean g_mutex_trylock (GMutex *mutex); +GLIB_AVAILABLE_IN_ALL +void g_mutex_unlock (GMutex *mutex); + +GLIB_AVAILABLE_IN_2_32 +void g_rw_lock_init (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +void g_rw_lock_clear (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +void g_rw_lock_writer_lock (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +gboolean g_rw_lock_writer_trylock (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +void g_rw_lock_writer_unlock (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +void g_rw_lock_reader_lock (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +gboolean g_rw_lock_reader_trylock (GRWLock *rw_lock); +GLIB_AVAILABLE_IN_2_32 +void g_rw_lock_reader_unlock (GRWLock *rw_lock); + +GLIB_AVAILABLE_IN_2_32 +void g_rec_mutex_init (GRecMutex *rec_mutex); +GLIB_AVAILABLE_IN_2_32 +void g_rec_mutex_clear (GRecMutex *rec_mutex); +GLIB_AVAILABLE_IN_2_32 +void g_rec_mutex_lock (GRecMutex *rec_mutex); +GLIB_AVAILABLE_IN_2_32 +gboolean g_rec_mutex_trylock (GRecMutex *rec_mutex); +GLIB_AVAILABLE_IN_2_32 +void g_rec_mutex_unlock (GRecMutex *rec_mutex); + +GLIB_AVAILABLE_IN_2_32 +void g_cond_init (GCond *cond); +GLIB_AVAILABLE_IN_2_32 +void g_cond_clear (GCond *cond); +GLIB_AVAILABLE_IN_ALL +void g_cond_wait (GCond *cond, + GMutex *mutex); +GLIB_AVAILABLE_IN_ALL +void g_cond_signal (GCond *cond); +GLIB_AVAILABLE_IN_ALL +void g_cond_broadcast (GCond *cond); +GLIB_AVAILABLE_IN_2_32 +gboolean g_cond_wait_until (GCond *cond, + GMutex *mutex, + gint64 end_time); + +GLIB_AVAILABLE_IN_ALL +gpointer g_private_get (GPrivate *key); +GLIB_AVAILABLE_IN_ALL +void g_private_set (GPrivate *key, + gpointer value); +GLIB_AVAILABLE_IN_2_32 +void g_private_replace (GPrivate *key, + gpointer value); + +GLIB_AVAILABLE_IN_ALL +gpointer g_once_impl (GOnce *once, + GThreadFunc func, + gpointer arg); +GLIB_AVAILABLE_IN_ALL +gboolean g_once_init_enter (volatile void *location); +GLIB_AVAILABLE_IN_ALL +void g_once_init_leave (volatile void *location, + gsize result); #ifdef G_ATOMIC_OP_MEMORY_BARRIER_NEEDED # define g_once(once, func, arg) g_once_impl ((once), (func), (arg)) @@ -327,72 +242,29 @@ gpointer g_once_impl (GOnce *once, GThreadFunc func, gpointer arg); g_once_impl ((once), (func), (arg))) #endif /* G_ATOMIC_OP_MEMORY_BARRIER_NEEDED */ -/* initialize-once guards, keyed by value_location */ -G_INLINE_FUNC gboolean g_once_init_enter (volatile gsize *value_location); -gboolean g_once_init_enter_impl (volatile gsize *value_location); -void g_once_init_leave (volatile gsize *value_location, - gsize initialization_value); -#if defined (G_CAN_INLINE) || defined (__G_THREAD_C__) -G_INLINE_FUNC gboolean -g_once_init_enter (volatile gsize *value_location) -{ - if G_LIKELY (g_atomic_pointer_get ((void*volatile*) value_location) != NULL) - return FALSE; - else - return g_once_init_enter_impl (value_location); -} -#endif /* G_CAN_INLINE || __G_THREAD_C__ */ - -/* these are some convenience macros that expand to nothing if GLib - * was configured with --disable-threads. for using StaticMutexes, - * you define them with G_LOCK_DEFINE_STATIC (name) or G_LOCK_DEFINE (name) - * if you need to export the mutex. With G_LOCK_EXTERN (name) you can - * declare such an globally defined lock. name is a unique identifier - * for the protected varibale or code portion. locking, testing and - * unlocking of such mutexes can be done with G_LOCK(), G_UNLOCK() and - * G_TRYLOCK() respectively. - */ -extern void glib_dummy_decl (void); -#define G_LOCK_NAME(name) g__ ## name ## _lock -#ifdef G_THREADS_ENABLED -# define G_LOCK_DEFINE_STATIC(name) static G_LOCK_DEFINE (name) -# define G_LOCK_DEFINE(name) \ - GStaticMutex G_LOCK_NAME (name) = G_STATIC_MUTEX_INIT -# define G_LOCK_EXTERN(name) extern GStaticMutex G_LOCK_NAME (name) - -# ifdef G_DEBUG_LOCKS -# define G_LOCK(name) G_STMT_START{ \ - g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \ - "file %s: line %d (%s): locking: %s ", \ - __FILE__, __LINE__, G_STRFUNC, \ - #name); \ - g_static_mutex_lock (&G_LOCK_NAME (name)); \ - }G_STMT_END -# define G_UNLOCK(name) G_STMT_START{ \ - g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \ - "file %s: line %d (%s): unlocking: %s ", \ - __FILE__, __LINE__, G_STRFUNC, \ - #name); \ - g_static_mutex_unlock (&G_LOCK_NAME (name)); \ - }G_STMT_END -# define G_TRYLOCK(name) \ - (g_log (G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG, \ - "file %s: line %d (%s): try locking: %s ", \ - __FILE__, __LINE__, G_STRFUNC, \ - #name), g_static_mutex_trylock (&G_LOCK_NAME (name))) -# else /* !G_DEBUG_LOCKS */ -# define G_LOCK(name) g_static_mutex_lock (&G_LOCK_NAME (name)) -# define G_UNLOCK(name) g_static_mutex_unlock (&G_LOCK_NAME (name)) -# define G_TRYLOCK(name) g_static_mutex_trylock (&G_LOCK_NAME (name)) -# endif /* !G_DEBUG_LOCKS */ -#else /* !G_THREADS_ENABLED */ -# define G_LOCK_DEFINE_STATIC(name) extern void glib_dummy_decl (void) -# define G_LOCK_DEFINE(name) extern void glib_dummy_decl (void) -# define G_LOCK_EXTERN(name) extern void glib_dummy_decl (void) -# define G_LOCK(name) -# define G_UNLOCK(name) -# define G_TRYLOCK(name) (TRUE) -#endif /* !G_THREADS_ENABLED */ +#ifdef __GNUC__ +# define g_once_init_enter(location) \ + (G_GNUC_EXTENSION ({ \ + G_STATIC_ASSERT (sizeof *(location) == sizeof (gpointer)); \ + (void) (0 ? (gpointer) *(location) : 0); \ + (!g_atomic_pointer_get (location) && \ + g_once_init_enter (location)); \ + })) +# define g_once_init_leave(location, result) \ + (G_GNUC_EXTENSION ({ \ + G_STATIC_ASSERT (sizeof *(location) == sizeof (gpointer)); \ + (void) (0 ? *(location) = (result) : 0); \ + g_once_init_leave ((location), (gsize) (result)); \ + })) +#else +# define g_once_init_enter(location) \ + (g_once_init_enter((location))) +# define g_once_init_leave(location, result) \ + (g_once_init_leave((location), (gsize) (result))) +#endif + +GLIB_AVAILABLE_IN_2_36 +guint g_get_num_processors (void); G_END_DECLS