-/* $Id$ */
-
/***
This file is part of PulseAudio.
- Copyright 2006 Lennart Poettering
+ Copyright 2006-2008 Lennart Poettering
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published
- by the Free Software Foundation; either version 2 of the License,
+ by the Free Software Foundation; either version 2.1 of the License,
or (at your option) any later version.
PulseAudio is distributed in the hope that it will be useful, but
#include <config.h>
#endif
+#include <errno.h>
+#include <stdio.h>
+
+#include <pulse/rtclock.h>
+#include <pulse/timeval.h>
+#include <pulse/xmalloc.h>
+
#include <pulsecore/core-util.h>
#include <pulsecore/module.h>
#include <pulsecore/log.h>
#include <pulsecore/namereg.h>
+#include <pulsecore/core-error.h>
#include "module-default-device-restore-symdef.h"
PA_MODULE_AUTHOR("Lennart Poettering");
PA_MODULE_DESCRIPTION("Automatically restore the default sink and source");
PA_MODULE_VERSION(PACKAGE_VERSION);
-PA_MODULE_LOAD_ONCE(TRUE);
+PA_MODULE_LOAD_ONCE(true);
-#define DEFAULT_SINK_FILE "default-sink"
-#define DEFAULT_SOURCE_FILE "default-source"
+#define SAVE_INTERVAL (5 * PA_USEC_PER_SEC)
-int pa__init(pa_module *m) {
+struct userdata {
+ pa_core *core;
+ pa_subscription *subscription;
+ pa_time_event *time_event;
+ char *sink_filename, *source_filename;
+ bool modified;
+};
+
+static void load(struct userdata *u) {
FILE *f;
/* We never overwrite manually configured settings */
- if (m->core->default_sink_name)
+ if (u->core->default_sink)
pa_log_info("Manually configured default sink, not overwriting.");
- else if ((f = pa_open_config_file(NULL, DEFAULT_SINK_FILE, NULL, NULL, "r"))) {
+ else if ((f = pa_fopen_cloexec(u->sink_filename, "r"))) {
char ln[256] = "";
+ pa_sink *s;
- fgets(ln, sizeof(ln)-1, f);
- pa_strip_nl(ln);
+ if (fgets(ln, sizeof(ln)-1, f))
+ pa_strip_nl(ln);
fclose(f);
if (!ln[0])
- pa_log_debug("No previous default sink setting, ignoring.");
- else if (pa_namereg_get(m->core, ln, PA_NAMEREG_SINK, 1)) {
- pa_namereg_set_default(m->core, ln, PA_NAMEREG_SINK);
- pa_log_debug("Restored default sink '%s'.", ln);
+ pa_log_info("No previous default sink setting, ignoring.");
+ else if ((s = pa_namereg_get(u->core, ln, PA_NAMEREG_SINK))) {
+ pa_namereg_set_default_sink(u->core, s);
+ pa_log_info("Restored default sink '%s'.", ln);
} else
- pa_log_info("Saved default sink '%s' not existant, not restoring default sink setting.", ln);
- }
+ pa_log_info("Saved default sink '%s' not existent, not restoring default sink setting.", ln);
- if (m->core->default_source_name)
+ } else if (errno != ENOENT)
+ pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
+
+ if (u->core->default_source)
pa_log_info("Manually configured default source, not overwriting.");
- else if ((f = pa_open_config_file(NULL, DEFAULT_SOURCE_FILE, NULL, NULL, "r"))) {
+ else if ((f = pa_fopen_cloexec(u->source_filename, "r"))) {
char ln[256] = "";
+ pa_source *s;
- fgets(ln, sizeof(ln)-1, f);
- pa_strip_nl(ln);
+ if (fgets(ln, sizeof(ln)-1, f))
+ pa_strip_nl(ln);
fclose(f);
if (!ln[0])
- pa_log_debug("No previous default source setting, ignoring.");
- else if (pa_namereg_get(m->core, ln, PA_NAMEREG_SOURCE, 1)) {
- pa_namereg_set_default(m->core, ln, PA_NAMEREG_SOURCE);
- pa_log_debug("Restored default source '%s'.", ln);
+ pa_log_info("No previous default source setting, ignoring.");
+ else if ((s = pa_namereg_get(u->core, ln, PA_NAMEREG_SOURCE))) {
+ pa_namereg_set_default_source(u->core, s);
+ pa_log_info("Restored default source '%s'.", ln);
} else
- pa_log_info("Saved default source '%s' not existant, not restoring default source setting.", ln);
- }
+ pa_log_info("Saved default source '%s' not existent, not restoring default source setting.", ln);
- return 0;
+ } else if (errno != ENOENT)
+ pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
}
-void pa__done(pa_module*m) {
+static void save(struct userdata *u) {
FILE *f;
- if ((f = pa_open_config_file(NULL, DEFAULT_SINK_FILE, NULL, NULL, "w"))) {
- const char *n = pa_namereg_get_default_sink_name(m->core);
- fprintf(f, "%s\n", n ? n : "");
- fclose(f);
+ if (!u->modified)
+ return;
+
+ if (u->sink_filename) {
+ if ((f = pa_fopen_cloexec(u->sink_filename, "w"))) {
+ pa_sink *s = pa_namereg_get_default_sink(u->core);
+ fprintf(f, "%s\n", s ? s->name : "");
+ fclose(f);
+ } else
+ pa_log("Failed to save default sink: %s", pa_cstrerror(errno));
}
- if ((f = pa_open_config_file(NULL, DEFAULT_SOURCE_FILE, NULL, NULL, "w"))) {
- const char *n = pa_namereg_get_default_source_name(m->core);
- fprintf(f, "%s\n", n ? n : "");
- fclose(f);
+ if (u->source_filename) {
+ if ((f = pa_fopen_cloexec(u->source_filename, "w"))) {
+ pa_source *s = pa_namereg_get_default_source(u->core);
+ fprintf(f, "%s\n", s ? s->name : "");
+ fclose(f);
+ } else
+ pa_log("Failed to save default source: %s", pa_cstrerror(errno));
+ }
+
+ u->modified = false;
+}
+
+static void time_cb(pa_mainloop_api *a, pa_time_event *e, const struct timeval *t, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(u);
+ save(u);
+
+ if (u->time_event) {
+ u->core->mainloop->time_free(u->time_event);
+ u->time_event = NULL;
}
}
+
+static void subscribe_cb(pa_core *c, pa_subscription_event_type_t t, uint32_t idx, void *userdata) {
+ struct userdata *u = userdata;
+
+ pa_assert(u);
+
+ u->modified = true;
+
+ if (!u->time_event)
+ u->time_event = pa_core_rttime_new(u->core, pa_rtclock_now() + SAVE_INTERVAL, time_cb, u);
+}
+
+int pa__init(pa_module *m) {
+ struct userdata *u;
+
+ pa_assert(m);
+
+ m->userdata = u = pa_xnew0(struct userdata, 1);
+ u->core = m->core;
+
+ if (!(u->sink_filename = pa_state_path("default-sink", true)))
+ goto fail;
+
+ if (!(u->source_filename = pa_state_path("default-source", true)))
+ goto fail;
+
+ load(u);
+
+ u->subscription = pa_subscription_new(u->core, PA_SUBSCRIPTION_MASK_SERVER, subscribe_cb, u);
+
+ return 0;
+
+fail:
+ pa__done(m);
+
+ return -1;
+}
+
+void pa__done(pa_module*m) {
+ struct userdata *u;
+
+ pa_assert(m);
+
+ if (!(u = m->userdata))
+ return;
+
+ save(u);
+
+ if (u->subscription)
+ pa_subscription_free(u->subscription);
+
+ if (u->time_event)
+ m->core->mainloop->time_free(u->time_event);
+
+ pa_xfree(u->sink_filename);
+ pa_xfree(u->source_filename);
+ pa_xfree(u);
+}