pipewire/src/modules/module-protocol-pulse/extension.c

/* PipeWire
 *
 * Copyright © 2020 Wim Taymans
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice (including the next
 * paragraph) shall be included in all copies or substantial portions of the
 * Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 */

struct extension_sub {
	const char *name;
	uint32_t command;
	int (*process)(struct client *client, uint32_t command, uint32_t tag, struct message *m);
};

struct extension {
	const char *name;
	uint32_t idx;
	int (*process)(struct client *client, uint32_t tag, struct message *m);
};

#include "ext-stream-restore.c"

static int do_extension_device_restore(struct client *client, uint32_t tag, struct message *m)
{
	return -ENOTSUP;
}

static int do_extension_device_manager(struct client *client, uint32_t tag, struct message *m)
{
	return -ENOTSUP;
}

struct extension extensions[] = {
	{ "module-stream-restore", 0 | EXTENSION_FLAG, do_extension_stream_restore, },
	{ "module-device-restore", 1 | EXTENSION_FLAG, do_extension_device_restore, },
	{ "module-device-manager", 2 | EXTENSION_FLAG, do_extension_device_manager, },
};

static struct extension *find_extension(uint32_t idx, const char *name)
{
	uint32_t i;
	for (i = 0; i < SPA_N_ELEMENTS(extensions); i++) {
		if (idx == extensions[i].idx ||
		    (name && strcmp(name, extensions[i].name) == 0))
			return &extensions[i];
	}
	return 0;
}