Various improvements

context: fix memory free
subscribe: implement dummy methods
introspect: implement more
stream: keep track of dequeued buffers ourselves because we need to
be able to cancel and keep track of writable size.

src/ext-stream-restore.c

@@ -0,0 +1,90 @@
+/* PipeWire
+ * Copyright (C) 2018 Wim Taymans <wim.taymans@gmail.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Library General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Library General Public License for more details.
+ *
+ * You should have received a copy of the GNU Library General Public
+ * License along with this library; if not, write to the
+ * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
+ * Boston, MA 02110-1301, USA.
+ */
+
+#include <pipewire/pipewire.h>
+
+#include <pulse/ext-stream-restore.h>
+
+#include "internal.h"
+
+/** Test if this extension module is available in the server. \since 0.9.12 */
+pa_operation *pa_ext_stream_restore_test(
+        pa_context *c,
+        pa_ext_stream_restore_test_cb_t cb,
+        void *userdata)
+{
+	pw_log_warn("Not Implemented");
+	return NULL;
+}
+
+/** Read all entries from the stream database. \since 0.9.12 */
+pa_operation *pa_ext_stream_restore_read(
+        pa_context *c,
+        pa_ext_stream_restore_read_cb_t cb,
+        void *userdata)
+{
+	pw_log_warn("Not Implemented");
+	return NULL;
+}
+
+/** Store entries in the stream database. \since 0.9.12 */
+pa_operation *pa_ext_stream_restore_write(
+        pa_context *c,
+        pa_update_mode_t mode,
+        const pa_ext_stream_restore_info data[],
+        unsigned n,
+        int apply_immediately,
+        pa_context_success_cb_t cb,
+        void *userdata)
+{
+	pw_log_warn("Not Implemented");
+	return NULL;
+}
+
+/** Delete entries from the stream database. \since 0.9.12 */
+pa_operation *pa_ext_stream_restore_delete(
+        pa_context *c,
+        const char *const s[],
+        pa_context_success_cb_t cb,
+        void *userdata)
+{
+	pw_log_warn("Not Implemented");
+	return NULL;
+}
+
+/** Subscribe to changes in the stream database. \since 0.9.12 */
+pa_operation *pa_ext_stream_restore_subscribe(
+        pa_context *c,
+        int enable,
+        pa_context_success_cb_t cb,
+        void *userdata)
+{
+	pw_log_warn("Not Implemented");
+	return NULL;
+}
+
+/** Set the subscription callback that is called when
+ * pa_ext_stream_restore_subscribe() was called. \since 0.9.12 */
+void pa_ext_stream_restore_set_subscribe_cb(
+        pa_context *c,
+        pa_ext_stream_restore_subscribe_cb_t cb,
+        void *userdata)
+{
+	pw_log_warn("Not Implemented");
+}