* Modified by the GLib Team and others 1997-2000. See the AUTHORS
* file for a list of people on the GLib Team. See the ChangeLog
* files for a list of changes. These files are distributed with
- * GLib at ftp://ftp.gtk.org/pub/gtk/.
+ * GLib at ftp://ftp.gtk.org/pub/gtk/.
*/
-/*
+/*
* MT safe
*/
#include "gthreadprivate.h"
#include "galias.h"
-GQuark
+GQuark
g_thread_error_quark (void)
{
return g_quark_from_static_string ("g_thread_error");
(GPrivate*(*)(GDestroyNotify))g_thread_fail, /* private_new */
NULL, /* private_get */
NULL, /* private_set */
- (void(*)(GThreadFunc, gpointer, gulong,
- gboolean, gboolean, GThreadPriority,
+ (void(*)(GThreadFunc, gpointer, gulong,
+ gboolean, gboolean, GThreadPriority,
gpointer, GError**))g_thread_fail, /* thread_create */
NULL, /* thread_yield */
NULL, /* thread_join */
NULL, /* thread_exit */
NULL, /* thread_set_priority */
NULL /* thread_self */
-};
+};
/* Local data */
/* This must be called only once, before any threads are created.
* It will only be called from g_thread_init() in -lgthread.
*/
-void
+void
g_thread_init_glib (void)
{
/* We let the main thread (the one that calls g_thread_init) inherit
}
#endif /* G_THREADS_ENABLED */
-gpointer
-g_once_impl (GOnce *once,
- GThreadFunc func,
+gpointer
+g_once_impl (GOnce *once,
+ GThreadFunc func,
gpointer arg)
{
g_mutex_lock (g_once_mutex);
while (once->status == G_ONCE_STATUS_PROGRESS)
g_cond_wait (g_once_cond, g_once_mutex);
-
+
if (once->status != G_ONCE_STATUS_READY)
{
once->status = G_ONCE_STATUS_PROGRESS;
g_mutex_unlock (g_once_mutex);
-
+
once->retval = func (arg);
g_mutex_lock (g_once_mutex);
once->status = G_ONCE_STATUS_READY;
g_cond_broadcast (g_once_cond);
}
-
+
g_mutex_unlock (g_once_mutex);
-
+
return once->retval;
}
-void
+void
g_static_mutex_init (GStaticMutex *mutex)
{
static const GStaticMutex init_mutex = G_STATIC_MUTEX_INIT;
g_mutex_lock (g_once_mutex);
- if (!(*mutex))
- {
- GMutex *new_mutex = g_mutex_new ();
-
- /* The following is a memory barrier to avoid the write
- * to *new_mutex being reordered to after writing *mutex */
- g_mutex_lock (new_mutex);
- g_mutex_unlock (new_mutex);
-
- *mutex = new_mutex;
- }
+ if (!(*mutex))
+ g_atomic_pointer_set (mutex, g_mutex_new());
g_mutex_unlock (g_once_mutex);
-
+
return *mutex;
}
g_static_mutex_free (GStaticMutex* mutex)
{
GMutex **runtime_mutex;
-
+
g_return_if_fail (mutex);
/* The runtime_mutex is the first (or only) member of GStaticMutex,
* see both versions (of glibconfig.h) in configure.in */
runtime_mutex = ((GMutex**)mutex);
-
+
if (*runtime_mutex)
g_mutex_free (*runtime_mutex);
*runtime_mutex = NULL;
}
-void
+void
g_static_rec_mutex_init (GStaticRecMutex *mutex)
{
static const GStaticRecMutex init_mutex = G_STATIC_REC_MUTEX_INIT;
-
+
g_return_if_fail (mutex);
*mutex = init_mutex;
return;
}
g_system_thread_assign (mutex->owner, zero_thread);
- g_static_mutex_unlock (&mutex->mutex);
+ g_static_mutex_unlock (&mutex->mutex);
}
void
mutex->depth = depth;
}
-guint
+guint
g_static_rec_mutex_unlock_full (GStaticRecMutex *mutex)
{
guint depth;
g_static_mutex_free (&mutex->mutex);
}
-void
+void
g_static_private_init (GStaticPrivate *private_key)
{
private_key->index = 0;
if (!private_key->index)
return NULL;
else if (private_key->index <= array->len)
- return g_array_index (array, GStaticPrivateNode,
+ return g_array_index (array, GStaticPrivateNode,
private_key->index - 1).data;
else
return NULL;
}
void
-g_static_private_set (GStaticPrivate *private_key,
+g_static_private_set (GStaticPrivate *private_key,
gpointer data,
GDestroyNotify notify)
{
{
if (g_thread_free_indeces)
{
- private_key->index =
+ private_key->index =
GPOINTER_TO_UINT (g_thread_free_indeces->data);
- g_thread_free_indeces =
+ g_thread_free_indeces =
g_slist_delete_link (g_thread_free_indeces,
g_thread_free_indeces);
}
}
}
-void
+void
g_static_private_free (GStaticPrivate *private_key)
{
guint index = private_key->index;
if (!index)
return;
-
+
private_key->index = 0;
G_LOCK (g_thread);
-
+
thread = g_thread_all_threads;
while (thread)
{
if (array && index <= array->len)
{
- GStaticPrivateNode *node = &g_array_index (array,
- GStaticPrivateNode,
+ GStaticPrivateNode *node = &g_array_index (array,
+ GStaticPrivateNode,
index - 1);
gpointer ddata = node->data;
GDestroyNotify ddestroy = node->destroy;
node->data = NULL;
node->destroy = NULL;
- if (ddestroy)
+ if (ddestroy)
{
G_UNLOCK (g_thread);
ddestroy (ddata);
}
}
}
- g_thread_free_indeces = g_slist_prepend (g_thread_free_indeces,
+ g_thread_free_indeces = g_slist_prepend (g_thread_free_indeces,
GUINT_TO_POINTER (index));
G_UNLOCK (g_thread);
}
{
GArray* array = thread->private_data;
guint i;
-
+
for (i = 0; i < array->len; i++ )
{
- GStaticPrivateNode *node =
+ GStaticPrivateNode *node =
&g_array_index (array, GStaticPrivateNode, i);
if (node->destroy)
node->destroy (node->data);
}
}
G_UNLOCK (g_thread);
-
+
/* Just to make sure, this isn't used any more */
g_system_thread_assign (thread->system_thread, zero_thread);
g_free (thread);
before thread->thread.func is called. See g_thread_create. */
G_LOCK (g_thread);
G_UNLOCK (g_thread);
-
+
thread->retval = thread->thread.func (thread->thread.data);
return NULL;
}
-GThread*
+GThread*
g_thread_create_full (GThreadFunc func,
gpointer data,
gulong stack_size,
g_return_val_if_fail (func, NULL);
g_return_val_if_fail (priority >= G_THREAD_PRIORITY_LOW, NULL);
g_return_val_if_fail (priority <= G_THREAD_PRIORITY_URGENT, NULL);
-
+
result = g_new0 (GRealThread, 1);
result->thread.joinable = joinable;
result->thread.priority = priority;
result->thread.func = func;
result->thread.data = data;
- result->private_data = NULL;
+ result->private_data = NULL;
G_LOCK (g_thread);
- G_THREAD_UF (thread_create, (g_thread_create_proxy, result,
+ G_THREAD_UF (thread_create, (g_thread_create_proxy, result,
stack_size, joinable, bound, priority,
&result->system_thread, &local_error));
result->next = g_thread_all_threads;
g_return_val_if_fail (thread, NULL);
g_return_val_if_fail (thread->joinable, NULL);
- g_return_val_if_fail (!g_system_thread_equal (real->system_thread,
+ g_return_val_if_fail (!g_system_thread_equal (real->system_thread,
zero_thread), NULL);
G_THREAD_UF (thread_join, (&real->system_thread));
}
void
-g_thread_set_priority (GThread* thread,
+g_thread_set_priority (GThread* thread,
GThreadPriority priority)
{
GRealThread* real = (GRealThread*) thread;
thread->priority = priority;
- G_THREAD_CF (thread_set_priority, (void)0,
+ G_THREAD_CF (thread_set_priority, (void)0,
(&real->system_thread, priority));
}
GRealThread* thread = g_private_get (g_thread_specific_private);
if (!thread)
- {
+ {
/* If no thread data is available, provide and set one. This
can happen for the main thread and for threads, that are not
created by GLib. */
if (g_thread_supported ())
G_THREAD_UF (thread_self, (&thread->system_thread));
- g_private_set (g_thread_specific_private, thread);
-
+ g_private_set (g_thread_specific_private, thread);
+
G_LOCK (g_thread);
thread->next = g_thread_all_threads;
g_thread_all_threads = thread;
G_UNLOCK (g_thread);
}
-
+
return (GThread*)thread;
}
*lock = init_lock;
}
-inline static void
+inline static void
g_static_rw_lock_wait (GCond** cond, GStaticMutex* mutex)
{
if (!*cond)
g_cond_wait (*cond, g_static_mutex_get_mutex (mutex));
}
-inline static void
+inline static void
g_static_rw_lock_signal (GStaticRWLock* lock)
{
if (lock->want_to_write && lock->write_cond)
g_cond_broadcast (lock->read_cond);
}
-void
+void
g_static_rw_lock_reader_lock (GStaticRWLock* lock)
{
g_return_if_fail (lock);
g_static_mutex_lock (&lock->mutex);
lock->want_to_read++;
- while (lock->have_writer || lock->want_to_write)
+ while (lock->have_writer || lock->want_to_write)
g_static_rw_lock_wait (&lock->read_cond, &lock->mutex);
lock->want_to_read--;
lock->read_counter++;
g_static_mutex_unlock (&lock->mutex);
}
-gboolean
+gboolean
g_static_rw_lock_reader_trylock (GStaticRWLock* lock)
{
gboolean ret_val = FALSE;
return ret_val;
}
-void
+void
g_static_rw_lock_reader_unlock (GStaticRWLock* lock)
{
g_return_if_fail (lock);
g_static_mutex_unlock (&lock->mutex);
}
-void
+void
g_static_rw_lock_writer_lock (GStaticRWLock* lock)
{
g_return_if_fail (lock);
g_static_mutex_unlock (&lock->mutex);
}
-gboolean
+gboolean
g_static_rw_lock_writer_trylock (GStaticRWLock* lock)
{
gboolean ret_val = FALSE;
g_return_val_if_fail (lock, FALSE);
-
+
if (!g_threads_got_initialized)
return TRUE;
return ret_val;
}
-void
+void
g_static_rw_lock_writer_unlock (GStaticRWLock* lock)
{
g_return_if_fail (lock);
-
+
if (!g_threads_got_initialized)
return;
g_static_mutex_lock (&lock->mutex);
- lock->have_writer = FALSE;
+ lock->have_writer = FALSE;
g_static_rw_lock_signal (lock);
g_static_mutex_unlock (&lock->mutex);
}
-void
+void
g_static_rw_lock_free (GStaticRWLock* lock)
{
g_return_if_fail (lock);
-
+
if (lock->read_cond)
{
g_cond_free (lock->read_cond);
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