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thread-safe nextstep gsettings backend

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simplified key reset logic
This commit is contained in:
William Hua 2012-01-01 21:38:05 -05:00
parent 9c10083844
commit edd2aff575
1 changed files with 32 additions and 17 deletions
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49
gio/gnextstepsettingsbackend.c
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@ -46,6 +46,7 @@ struct _GNextstepSettingsBackend
/*< private >*/
NSUserDefaults *user_defaults;
GMutex mutex;
};
@ -129,6 +130,8 @@ g_nextstep_settings_backend_init (GNextstepSettingsBackend *self)
self->user_defaults = [[NSUserDefaults standardUserDefaults] retain];
g_mutex_init (&self->mutex);
[pool drain];
}
@ -137,11 +140,14 @@ g_nextstep_settings_backend_init (GNextstepSettingsBackend *self)
static void
g_nextstep_settings_backend_finalize (GObject *self)
{
GNextstepSettingsBackend *backend = G_NEXTSTEP_SETTINGS_BACKEND (self);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
[G_NEXTSTEP_SETTINGS_BACKEND (self)->user_defaults release];
g_mutex_clear (&backend->mutex);
[backend->user_defaults release];
[pool drain];
@ -156,6 +162,7 @@ g_nextstep_settings_backend_read (GSettingsBackend *backend,
const GVariantType *expected_type,
gboolean default_value)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
NSString *name;
id value;
@ -166,7 +173,11 @@ g_nextstep_settings_backend_read (GSettingsBackend *backend,
pool = [[NSAutoreleasePool alloc] init];
name = [NSString stringWithUTF8String:key];
value = [G_NEXTSTEP_SETTINGS_BACKEND (backend)->user_defaults objectForKey:name];
g_mutex_lock (&self->mutex);
value = [self->user_defaults objectForKey:name];
g_mutex_unlock (&self->mutex);
variant = g_nextstep_settings_backend_get_g_variant (value, expected_type);
[pool drain];
@ -191,11 +202,15 @@ g_nextstep_settings_backend_write (GSettingsBackend *backend,
GVariant *value,
gpointer origin_tag)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
g_nextstep_settings_backend_write_pair ((gpointer) key, value, backend);
g_mutex_lock (&self->mutex);
g_nextstep_settings_backend_write_pair ((gpointer) key, value, self);
g_mutex_unlock (&self->mutex);
g_settings_backend_changed (backend, key, origin_tag);
[pool drain];
@ -210,11 +225,14 @@ g_nextstep_settings_backend_write_tree (GSettingsBackend *backend,
GTree *tree,
gpointer origin_tag)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
g_tree_foreach (tree, g_nextstep_settings_backend_write_pair, backend);
g_mutex_lock (&self->mutex);
g_tree_foreach (tree, g_nextstep_settings_backend_write_pair, self);
g_mutex_unlock (&self->mutex);
g_settings_backend_changed_tree (backend, tree, origin_tag);
[pool drain];
@ -229,23 +247,18 @@ g_nextstep_settings_backend_reset (GSettingsBackend *backend,
const gchar *key,
gpointer origin_tag)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
NSUserDefaults *user_defaults;
NSString *name;
id value;
id default_value;
pool = [[NSAutoreleasePool alloc] init];
user_defaults = G_NEXTSTEP_SETTINGS_BACKEND (backend)->user_defaults;
name = [NSString stringWithUTF8String:key];
value = [user_defaults objectForKey:name];
[user_defaults removeObjectForKey:name];
g_mutex_lock (&self->mutex);
[self->user_defaults removeObjectForKey:name];
g_mutex_unlock (&self->mutex);
default_value = [user_defaults objectForKey:name];
if (default_value != value && ![default_value isEqual:value])
g_settings_backend_changed (backend, key, origin_tag);
g_settings_backend_changed (backend, key, origin_tag);
[pool drain];
}
@ -271,11 +284,14 @@ g_nextstep_settings_backend_unsubscribe (GSettingsBackend *backend,
static void
g_nextstep_settings_backend_sync (GSettingsBackend *backend)
{
GNextstepSettingsBackend *self = G_NEXTSTEP_SETTINGS_BACKEND (backend);
NSAutoreleasePool *pool;
pool = [[NSAutoreleasePool alloc] init];
[G_NEXTSTEP_SETTINGS_BACKEND (backend)->user_defaults synchronize];
g_mutex_lock (&self->mutex);
[self->user_defaults synchronize];
g_mutex_unlock (&self->mutex);
[pool drain];
}
@ -296,11 +312,10 @@ g_nextstep_settings_backend_write_pair (gpointer name,
gpointer value,
gpointer data)
{
GNextstepSettingsBackend *backend;
GNextstepSettingsBackend *backend = G_NEXTSTEP_SETTINGS_BACKEND (data);
NSString *key;
id object;
backend = G_NEXTSTEP_SETTINGS_BACKEND (data);
key = [NSString stringWithUTF8String:name];
object = g_nextstep_settings_backend_get_ns_object (value);