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device-manager: Provide a way for clients to enable/disable role-based device-priority routing.

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The routing logic itself does not yet exist, but the command currently will unload/load module-stream-restore as approriate.
(module-stream-restore would conflict with the role-based priority-routing).
This commit is contained in:
Colin Guthrie 2009-09-19 16:13:25 +01:00
parent 9357bdf4e7
commit 103897a1e3
3 changed files with 95 additions and 0 deletions
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56
src/modules/module-device-manager.c
View file

@ -79,6 +79,10 @@ struct userdata {
pa_native_protocol *protocol;
pa_idxset *subscribed;
pa_bool_t role_device_priority_routing;
pa_bool_t stream_restore_used;
pa_bool_t checked_stream_restore;
};
#define ENTRY_VERSION 1
@ -93,6 +97,7 @@ enum {
SUBCOMMAND_READ,
SUBCOMMAND_WRITE,
SUBCOMMAND_DELETE,
SUBCOMMAND_ROLE_DEVICE_PRIORITY_ROUTING,
SUBCOMMAND_SUBSCRIBE,
SUBCOMMAND_EVENT
};
@ -473,6 +478,57 @@ static int extension_cb(pa_native_protocol *p, pa_module *m, pa_native_connectio
break;
case SUBCOMMAND_ROLE_DEVICE_PRIORITY_ROUTING:
while (!pa_tagstruct_eof(t)) {
pa_bool_t enable;
uint32_t sridx = PA_INVALID_INDEX;
uint32_t idx;
pa_module *module;
if (pa_tagstruct_get_boolean(t, &enable) < 0)
goto fail;
/* If this is the first run, check for stream restore module */
if (!u->checked_stream_restore) {
u->checked_stream_restore = TRUE;
for (module = pa_idxset_first(u->core->modules, &idx); module; module = pa_idxset_next(u->core->modules, &idx)) {
if (strcmp(module->name, "module-stream-restore") == 0) {
pa_log_debug("Detected module-stream-restore is currently in use");
u->stream_restore_used = TRUE;
sridx = module->index;
}
}
}
u->role_device_priority_routing = enable;
if (enable) {
if (u->stream_restore_used) {
if (PA_INVALID_INDEX == sridx) {
/* As a shortcut on first load, we have sridx filled in, but otherwise we search for it. */
for (module = pa_idxset_first(u->core->modules, &idx); module; module = pa_idxset_next(u->core->modules, &idx)) {
if (strcmp(module->name, "module-stream-restore") == 0) {
sridx = module->index;
}
}
}
if (PA_INVALID_INDEX != sridx) {
pa_log_debug("Unloading module-stream-restore to enable role-based device-priority routing");
pa_module_unload_request_by_index(u->core, sridx, TRUE);
}
}
} else if (u->stream_restore_used) {
/* We want to reload module-stream-restore */
if (!pa_module_load(u->core, "module-stream-restore", ""))
pa_log_warn("Failed to load module-stream-restore while disabling role-based device-priority routing");
}
}
trigger_save(u);
break;
case SUBCOMMAND_SUBSCRIBE: {
pa_bool_t enabled;