pipewire/src/modules/module-protocol-pulse/module-native-protocol-tcp.c
Wim Taymans 33ddd5f760 pulse-server: implement module-native-protocol-tcp
The module creates a tcp server on the given ip/port pair.
2021-04-09 18:27:30 +02:00

121 lines
3.6 KiB
C

/* PipeWire
*
* Copyright © 2021 Wim Taymans <wim.taymans@gmail.com>
*
* 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.
*/
#define ERROR_RETURN(str) \
{ \
pw_log_error(str); \
res = -EINVAL; \
goto out; \
}
struct module_native_protocol_tcp_data {
struct module *module;
struct server *server;
};
static int module_native_protocol_tcp_load(struct client *client, struct module *module)
{
struct module_native_protocol_tcp_data *data = module->user_data;
struct impl *impl = client->impl;
char *address;
address = strdup(pw_properties_get(module->props, "pulse.tcp"));
data->server = create_server(impl, address);
free(address);
if (data->server == NULL)
return -errno;
pw_log_info("loaded module %p id:%u name:%s", module, module->idx, module->name);
module_emit_loaded(module, 0);
return 0;
}
static int module_native_protocol_tcp_unload(struct client *client, struct module *module)
{
struct module_native_protocol_tcp_data *d = module->user_data;
pw_log_info("unload module %p id:%u name:%s", module, module->idx, module->name);
if (d->server != NULL)
server_free(d->server);
return 0;
}
static const struct module_methods module_native_protocol_tcp_methods = {
VERSION_MODULE_METHODS,
.load = module_native_protocol_tcp_load,
.unload = module_native_protocol_tcp_unload,
};
static const struct spa_dict_item module_native_protocol_tcp_info[] = {
{ PW_KEY_MODULE_AUTHOR, "Wim Taymans <wim.taymans@gmail.com>" },
{ PW_KEY_MODULE_DESCRIPTION, "Native protocol (TCP sockets)" },
{ PW_KEY_MODULE_USAGE, "port=<TCP port number> "
"listen=<address to listen on>" },
{ PW_KEY_MODULE_VERSION, PACKAGE_VERSION },
};
static struct module *create_module_native_protocol_tcp(struct impl *impl, const char *argument)
{
struct module *module;
struct module_native_protocol_tcp_data *d;
struct pw_properties *props = NULL;
const char *port, *listen;
int res;
props = pw_properties_new_dict(&SPA_DICT_INIT_ARRAY(module_native_protocol_tcp_info));
if (props == NULL) {
res = -errno;
goto out;
}
if (argument)
add_props(props, argument);
if ((port = pw_properties_get(props, "port")) == NULL)
port = "4713";
listen = pw_properties_get(props, "listen");
pw_properties_setf(props, "pulse.tcp", "tcp:%s%s%s",
listen ? listen : "", listen ? ":" : "", port);
module = module_new(impl, &module_native_protocol_tcp_methods, sizeof(*d));
if (module == NULL) {
res = -errno;
goto out;
}
module->props = props;
d = module->user_data;
d->module = module;
return module;
out:
if (props)
pw_properties_free(props);
errno = -res;
return NULL;
}