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This commit merges the glib-threads branch into the main

Browse Source 
branch. See the ChangeLog for details of the changes.

In brief overview:

 - The set of threading functions can be set
 - A default implementation is provided in -lgthread
 - All static data structures are locked using these
   functions if g_thread_init() is called.
This commit is contained in:
Owen Taylor
1998-12-15 05:28:02 +00:00
parent c8ba100dab
commit 931ea95265
79 changed files with 3635 additions and 245 deletions
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44
glist.c
View File

@@ -16,6 +16,11 @@
* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
* Boston, MA 02111-1307, USA.
*/
/*
* MT safe
*/
#include "glib.h"
@@ -31,9 +36,11 @@ struct _GAllocator /* from gmem.c */
};
static GAllocator *current_allocator = NULL;
static G_LOCK_DEFINE(current_allocator);
void
g_list_push_allocator (GAllocator *allocator)
/* HOLDS: current_allocator_lock */
static void
g_list_validate_allocator (GAllocator *allocator)
{
g_return_if_fail (allocator != NULL);
g_return_if_fail (allocator->is_unused == TRUE);
@@ -58,13 +65,22 @@ g_list_push_allocator (GAllocator *allocator)
}
allocator->is_unused = FALSE;
}
void
g_list_push_allocator(GAllocator *allocator)
{
g_list_validate_allocator ( allocator );
g_lock (current_allocator);
allocator->last = current_allocator;
current_allocator = allocator;
g_unlock (current_allocator);
}
void
g_list_pop_allocator (void)
{
g_lock (current_allocator);
if (current_allocator)
{
GAllocator *allocator;
@@ -74,6 +90,7 @@ g_list_pop_allocator (void)
allocator->last = NULL;
allocator->is_unused = TRUE;
}
g_unlock (current_allocator);
}
GList*
@@ -81,9 +98,15 @@ g_list_alloc (void)
{
GList *list;
g_lock (current_allocator);
if (!current_allocator)
g_list_push_allocator (g_allocator_new ("GLib default GList allocator", 1024));
{
GAllocator *allocator = g_allocator_new ("GLib default GList allocator",
1024);
g_list_validate_allocator (allocator);
allocator->last = NULL;
current_allocator = allocator;
}
if (!current_allocator->free_lists)
{
list = g_chunk_new (GList, current_allocator->mem_chunk);
@@ -103,6 +126,7 @@ g_list_alloc (void)
current_allocator->free_lists = list->next;
}
}
g_unlock (current_allocator);
list->next = NULL;
list->prev = NULL;
@@ -112,23 +136,31 @@ g_list_alloc (void)
void
g_list_free (GList *list)
{
#if 0
if (list)
{
list->data = list->next;
list->data = list->next;
g_lock (current_allocator);
list->next = current_allocator->free_lists;
current_allocator->free_lists = list;
g_unlock (current_allocator);
}
#endif
}
void
g_list_free_1 (GList *list)
{
#if 0
if (list)
{
list->data = NULL;
list->data = NULL;
g_lock (current_allocator);
list->next = current_allocator->free_lists;
current_allocator->free_lists = list;
g_unlock (current_allocator);
}
#endif
}
GList*