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pulse-server: make some modules load-once

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Add mechanism for allowing some modules to be loaded only once.

Mark always-sink, raop-discover, switch-on-connect, zeroconf-discover as
such.
This commit is contained in:
Pauli Virtanen 2022-02-13 17:48:37 +02:00
parent f5d47c079e
commit 01a83a1362
2 changed files with 41 additions and 22 deletions
Download patch file Download diff file Expand all files Collapse all files

62
src/modules/module-protocol-pulse/module.c
View file

@ -260,30 +260,30 @@ bool module_args_parse_bool(const char *v)
#include "modules/registry.h" #include "modules/registry.h"
static const struct module_info module_list[] = { static const struct module_info module_list[] = {
{ "module-always-sink", create_module_always_sink, }, { "module-always-sink", 1, create_module_always_sink, },
{ "module-combine-sink", create_module_combine_sink, }, { "module-combine-sink", 0, create_module_combine_sink, },
{ "module-echo-cancel", create_module_echo_cancel, }, { "module-echo-cancel", 0, create_module_echo_cancel, },
{ "module-ladspa-sink", create_module_ladspa_sink, }, { "module-ladspa-sink", 0, create_module_ladspa_sink, },
{ "module-ladspa-source", create_module_ladspa_source, }, { "module-ladspa-source", 0, create_module_ladspa_source, },
{ "module-loopback", create_module_loopback, }, { "module-loopback", 0, create_module_loopback, },
{ "module-null-sink", create_module_null_sink, }, { "module-null-sink", 0, create_module_null_sink, },
{ "module-native-protocol-tcp", create_module_native_protocol_tcp, }, { "module-native-protocol-tcp", 0, create_module_native_protocol_tcp, },
{ "module-pipe-source", create_module_pipe_source, }, { "module-pipe-source", 0, create_module_pipe_source, },
{ "module-pipe-sink", create_module_pipe_sink, }, { "module-pipe-sink", 0, create_module_pipe_sink, },
{ "module-raop-discover", create_module_raop_discover, }, { "module-raop-discover", 1, create_module_raop_discover, },
{ "module-remap-sink", create_module_remap_sink, }, { "module-remap-sink", 0, create_module_remap_sink, },
{ "module-remap-source", create_module_remap_source, }, { "module-remap-source", 0, create_module_remap_source, },
{ "module-simple-protocol-tcp", create_module_simple_protocol_tcp, }, { "module-simple-protocol-tcp", 0, create_module_simple_protocol_tcp, },
{ "module-switch-on-connect", create_module_switch_on_connect, }, { "module-switch-on-connect", 1, create_module_switch_on_connect, },
{ "module-tunnel-sink", create_module_tunnel_sink, }, { "module-tunnel-sink", 0, create_module_tunnel_sink, },
{ "module-tunnel-source", create_module_tunnel_source, }, { "module-tunnel-source", 0, create_module_tunnel_source, },
{ "module-zeroconf-discover", create_module_zeroconf_discover, }, { "module-zeroconf-discover", 1, create_module_zeroconf_discover, },
#ifdef HAVE_AVAHI #ifdef HAVE_AVAHI
{ "module-zeroconf-publish", create_module_zeroconf_publish, }, { "module-zeroconf-publish", 0, create_module_zeroconf_publish, },
#endif #endif
{ "module-roc-sink", create_module_roc_sink, }, { "module-roc-sink", 0, create_module_roc_sink, },
{ "module-roc-source", create_module_roc_source, }, { "module-roc-source", 0, create_module_roc_source, },
{ "module-x11-bell", create_module_x11_bell, }, { "module-x11-bell", 0, create_module_x11_bell, },
}; };
static const struct module_info *find_module_info(const char *name) static const struct module_info *find_module_info(const char *name)
@ -298,6 +298,13 @@ static const struct module_info *find_module_info(const char *name)
return NULL; return NULL;
} }
static int find_module_by_name(void *item_data, void *data)
{
const char *name = data;
const struct module *module = item_data;
return spa_streq(module->name, name) ? 1 : 0;
}
struct module *module_create(struct client *client, const char *name, const char *args) struct module *module_create(struct client *client, const char *name, const char *args)
{ {
struct impl *impl = client->impl; struct impl *impl = client->impl;
@ -309,6 +316,17 @@ struct module *module_create(struct client *client, const char *name, const char
errno = ENOENT; errno = ENOENT;
return NULL; return NULL;
} }
if (info->load_once) {
int exists;
exists = pw_map_for_each(&impl->modules, find_module_by_name,
(void *)name);
if (exists) {
errno = EEXIST;
return NULL;
}
}
module = info->create(impl, args); module = info->create(impl, args);
if (module == NULL) if (module == NULL)
return NULL; return NULL;

1
src/modules/module-protocol-pulse/module.h
View file

@ -37,6 +37,7 @@ struct pw_properties;
struct module_info { struct module_info {
const char *name; const char *name;
unsigned int load_once:1;
struct module *(*create) (struct impl *impl, const char *args); struct module *(*create) (struct impl *impl, const char *args);
}; };