initial commit

git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@3 fefdeb5f-60dc-0310-8127-8f9354f1896f

src/module.c

@@ -0,0 +1,98 @@
+#include <stdlib.h>
+#include <assert.h>
+
+#include "module.h"
+
+struct module* module_load(struct core *c, const char *name, const char *argument) {
+    struct module *m = NULL;
+    
+    assert(c && name);
+
+    m = malloc(sizeof(struct module));
+    assert(m);
+
+    if (!(m->dl = lt_dlopenext(name)))
+        goto fail;
+
+    if (!(m->init = lt_dlsym(m->dl, "module_init")))
+        goto fail;
+
+    if (!(m->done = lt_dlsym(m->dl, "module_done")))
+        goto fail;
+    
+    m->name = strdup(name);
+    m->argument = argument ? strdup(argument) : NULL;
+    m->userdata = NULL;
+
+    assert(m->init);
+    if (m->init(c, m) < 0)
+        goto fail;
+
+    if (!c->modules)
+        c->modules = idxset_new(NULL, NULL);
+    
+    assert(c->modules);
+    r = idxset_put(c->modules, m, &m->index);
+    assert(r >= 0 && m->index != IDXSET_INVALID);
+    return m;
+    
+fail:
+    if (m) {
+        if (m->dl)
+            lt_dlclose(m->dl);
+
+        free(m);
+    }
+
+    return NULL;
+}
+
+static void module_free(struct module *m) {
+    assert(m && m->done);
+    m->done(c, m);
+
+    lt_dlcose(m->dl);
+    free(m->name);
+    free(m->argument);
+    free(m);
+}
+
+void module_unload(struct core *c, struct module *m) {
+    struct module *m;
+    assert(c && index != IDXSET_INVALID);
+
+    assert(c->modules);
+    if (!(m = idxset_remove_by_data(c->modules, m, NULL)))
+        return;
+
+    module_free(m);
+}
+
+void module_unload_by_index(struct core *c, guint32_t index) {
+    struct module *m;
+    assert(c && index != IDXSET_INVALID);
+
+    assert(c->modules);
+    if (!(m = idxset_remove_by_index(c->modules, index)))
+        return;
+
+    module_free(m);
+}
+
+
+void free_callback(void *p, void *userdata) {
+    struct module *m = p;
+    assert(m);
+    module_free(m);
+}
+
+void module_unload_all(struct core *c) {
+    assert(c);
+
+    if (!c->modules)
+        return;
+
+    idxset_free(c->modules, free_callback, NULL);
+    c->modules = NULL;
+}
+