-/* $Id$ */
-
/***
This file is part of PulseAudio.
#define PA_SYMBOL_INIT "pa__init"
#define PA_SYMBOL_DONE "pa__done"
+#define PA_SYMBOL_LOAD_ONCE "pa__load_once"
#define UNLOAD_POLL_TIME 2
pa_module* pa_module_load(pa_core *c, const char *name, const char *argument) {
pa_module *m = NULL;
+ pa_bool_t (*load_once)(void);
pa_assert(c);
pa_assert(name);
goto fail;
}
+ if ((load_once = (pa_bool_t (*)(void)) pa_load_sym(m->dl, name, PA_SYMBOL_LOAD_ONCE))) {
+
+ if (load_once() && c->modules) {
+ pa_module *i;
+ uint32_t idx;
+ /* OK, the module only wants to be loaded once, let's make sure it is */
+
+ for (i = pa_idxset_first(c->modules, &idx); i; i = pa_idxset_next(c->modules, &idx)) {
+ if (strcmp(name, i->name) == 0) {
+ pa_log("Module \"%s\" should be loaded once at most. Refusing to load.", name);
+ goto fail;
+ }
+ }
+ }
+ }
+
if (!(m->init = (int (*)(pa_module*_m)) pa_load_sym(m->dl, name, PA_SYMBOL_INIT))) {
pa_log("Failed to load module \"%s\": symbol \""PA_SYMBOL_INIT"\" not found.", name);
goto fail;
m->userdata = NULL;
m->core = c;
m->n_used = -1;
- m->auto_unload = 0;
- m->unload_requested = 0;
+ m->auto_unload = FALSE;
+ m->unload_requested = FALSE;
if (m->init(m) < 0) {
pa_log_error("Failed to load module \"%s\" (argument: \"%s\"): initialization failed.", name, argument ? argument : "");
if (!c->modules)
c->modules = pa_idxset_new(NULL, NULL);
- if (!c->module_auto_unload_event) {
+ if (m->auto_unload && !c->module_auto_unload_event) {
struct timeval ntv;
pa_gettimeofday(&ntv);
pa_timeval_add(&ntv, UNLOAD_POLL_TIME*1000000);
pa_module_free(m);
}
-static void free_callback(void *p, PA_GCC_UNUSED void *userdata) {
- pa_module *m = p;
- pa_assert(m);
- pa_module_free(m);
-}
-
void pa_module_unload_all(pa_core *c) {
- pa_module *m;
pa_assert(c);
- if (!c->modules)
- return;
+ if (c->modules) {
+ pa_module *m;
- while ((m = pa_idxset_first(c->modules, NULL)))
- pa_module_unload(c, m);
+ while ((m = pa_idxset_steal_first(c->modules, NULL)))
+ pa_module_free(m);
- pa_idxset_free(c->modules, free_callback, NULL);
- c->modules = NULL;
+ pa_idxset_free(c->modules, NULL, NULL);
+ c->modules = NULL;
+ }
if (c->module_auto_unload_event) {
c->mainloop->time_free(c->module_auto_unload_event);
}
}
-static int unused_callback(void *p, PA_GCC_UNUSED uint32_t idx, int *del, void *userdata) {
- pa_module *m = p;
- time_t *now = userdata;
-
- pa_assert(m);
- pa_assert(del);
- pa_assert(now);
-
- if (m->n_used == 0 && m->auto_unload && m->last_used_time+m->core->module_idle_time <= *now) {
- pa_module_free(m);
- *del = 1;
- }
-
- return 0;
-}
-
void pa_module_unload_unused(pa_core *c) {
+ void *state = NULL;
time_t now;
+ pa_module *m;
+
pa_assert(c);
if (!c->modules)
return;
time(&now);
- pa_idxset_foreach(c->modules, unused_callback, &now);
-}
-static int unload_callback(void *p, PA_GCC_UNUSED uint32_t idx, int *del, PA_GCC_UNUSED void *userdata) {
- pa_module *m = p;
- pa_assert(m);
+ while ((m = pa_idxset_iterate(c->modules, &state, NULL))) {
- if (m->unload_requested) {
- pa_module_free(m);
- *del = 1;
- }
+ if (m->n_used > 0)
+ continue;
- return 0;
+ if (!m->auto_unload)
+ continue;
+
+ if (m->last_used_time + m->core->module_idle_time > now)
+ continue;
+
+ pa_module_unload(c, m);
+ }
}
static void defer_cb(pa_mainloop_api*api, pa_defer_event *e, void *userdata) {
- pa_core *core = PA_CORE(userdata);
+ void *state = NULL;
+ pa_core *c = PA_CORE(userdata);
+ pa_module *m;
- pa_core_assert_ref(core);
+ pa_core_assert_ref(c);
api->defer_enable(e, 0);
- if (!core->modules)
+ if (!c->modules)
return;
- pa_idxset_foreach(core->modules, unload_callback, NULL);
+ while ((m = pa_idxset_iterate(c->modules, &state, NULL)))
+ if (m->unload_requested)
+ pa_module_unload(c, m);
}
void pa_module_unload_request(pa_module *m) {
pa_assert(m);
- m->unload_requested = 1;
+ m->unload_requested = TRUE;
if (!m->core->module_defer_unload_event)
m->core->module_defer_unload_event = m->core->mainloop->defer_new(m->core->mainloop, defer_cb, m->core);