static void save(struct userdata *u) {
FILE *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 (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 int detect_oss(pa_core *c, int just_one) {
FILE *f;
int n = 0, b = 0;
if (!(f = pa_fopen_cloexec("/dev/sndstat", "r")) &&
!(f = pa_fopen_cloexec("/proc/sndstat", "r")) &&
!(f = pa_fopen_cloexec("/proc/asound/oss/sndstat", "r"))) {
if (errno != ENOENT)
pa_log_error("failed to open OSS sndstat device: %s", pa_cstrerror(errno));
return -1;
}
while (!feof(f)) {
char line[256], args[64];
unsigned device;
if (!fgets(line, sizeof(line), f))
break;
line[strcspn(line, "\r\n")] = 0;
if (!b) {
b = pa_streq(line, "Audio devices:") || pa_streq(line, "Installed devices:");
continue;
}
if (line[0] == 0)
break;
if (sscanf(line, "%u: ", &device) == 1) {
if (device == 0)
pa_snprintf(args, sizeof(args), "device=/dev/dsp");
else
pa_snprintf(args, sizeof(args), "device=/dev/dsp%u", device);
if (!pa_module_load(c, "module-oss", args))
continue;
} else if (sscanf(line, "pcm%u: ", &device) == 1) {
/* FreeBSD support, the devices are named /dev/dsp0.0, dsp0.1 and so on */
pa_snprintf(args, sizeof(args), "device=/dev/dsp%u.0", device);
if (!pa_module_load(c, "module-oss", args))
continue;
}
n++;
if (just_one)
break;
}
fclose(f);
return n;
}
int main ()
{
FILE *f;
int r;
sqlite3 *db;
const char *filename = "./elec_meters.conf";
if (!(f = pa_fopen_cloexec(filename, "r"))) {
printf("open meter config failed.\n");
goto error_exit;
}
state.filename = filename;
state.item_table = items;
r = build_glb_meter_list(f, &state);
if (r != 0)
goto error_exit;
mb_read_all_meters(glb_meter);
print_all_meters();
db = db_glb_init(GLB_DBFILE);
if (db == NULL) {
printf("openning database failed\n");
goto error_exit;
}
db_insert_meters(db, glb_meter);
db_glb_close(db);
error_exit:
return -1;
}
void pa_memchunk_dump_to_file(pa_memchunk *c, const char *fn) {
FILE *f;
void *p;
pa_assert(c);
pa_assert(fn);
/* Only for debugging purposes */
f = pa_fopen_cloexec(fn, "a");
if (!f) {
pa_log_warn("Failed to open '%s': %s", fn, pa_cstrerror(errno));
return;
}
p = pa_memblock_acquire(c->memblock);
if (fwrite((uint8_t*) p + c->index, 1, c->length, f) != c->length)
pa_log_warn("Failed to write to '%s': %s", fn, pa_cstrerror(errno));
pa_memblock_release(c->memblock);
fclose(f);
}
static void load(struct userdata *u) {
FILE *f;
/* We never overwrite manually configured settings */
if (u->core->configured_default_sink)
pa_log_info("Manually configured default sink, not overwriting.");
else if ((f = pa_fopen_cloexec(u->sink_filename, "r"))) {
char ln[256] = "";
if (fgets(ln, sizeof(ln)-1, f))
pa_strip_nl(ln);
fclose(f);
if (!ln[0])
pa_log_info("No previous default sink setting, ignoring.");
else if (!pa_namereg_is_valid_name(ln))
pa_log_warn("Invalid sink name: %s", ln);
else {
pa_log_info("Restoring default sink '%s'.", ln);
pa_core_set_configured_default_sink(u->core, ln);
}
} else if (errno != ENOENT)
pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
if (u->core->configured_default_source)
pa_log_info("Manually configured default source, not overwriting.");
else if ((f = pa_fopen_cloexec(u->source_filename, "r"))) {
char ln[256] = "";
if (fgets(ln, sizeof(ln)-1, f))
pa_strip_nl(ln);
fclose(f);
if (!ln[0])
pa_log_info("No previous default source setting, ignoring.");
else if (!pa_namereg_is_valid_name(ln))
pa_log_warn("Invalid source name: %s", ln);
else {
pa_log_info("Restoring default source '%s'.", ln);
pa_core_set_configured_default_source(u->core, ln);
}
} else if (errno != ENOENT)
pa_log("Failed to load default source: %s", pa_cstrerror(errno));
}
static void load(struct userdata *u) {
FILE *f;
/* We never overwrite manually configured settings */
if (u->core->default_sink)
pa_log_info("Manually configured default sink, not overwriting.");
else if ((f = pa_fopen_cloexec(u->sink_filename, "r"))) {
char ln[256] = "";
pa_sink *s;
if (fgets(ln, sizeof(ln)-1, f))
pa_strip_nl(ln);
fclose(f);
if (!ln[0])
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 existent, not restoring default sink setting.", ln);
} 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_fopen_cloexec(u->source_filename, "r"))) {
char ln[256] = "";
pa_source *s;
if (fgets(ln, sizeof(ln)-1, f))
pa_strip_nl(ln);
fclose(f);
if (!ln[0])
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 existent, not restoring default source setting.", ln);
} else if (errno != ENOENT)
pa_log("Failed to load default sink: %s", pa_cstrerror(errno));
}
static int detect_alsa(pa_core *c, int just_one) {
FILE *f;
int n = 0, n_sink = 0, n_source = 0;
if (!(f = pa_fopen_cloexec("/proc/asound/devices", "r"))) {
if (errno != ENOENT)
pa_log_error("open(\"/proc/asound/devices\") failed: %s", pa_cstrerror(errno));
return -1;
}
while (!feof(f)) {
char line[64], args[64];
unsigned device, subdevice;
int is_sink;
if (!fgets(line, sizeof(line), f))
break;
line[strcspn(line, "\r\n")] = 0;
if (pa_endswith(line, "digital audio playback"))
is_sink = 1;
else if (pa_endswith(line, "digital audio capture"))
is_sink = 0;
else
continue;
if (just_one && is_sink && n_sink >= 1)
continue;
if (just_one && !is_sink && n_source >= 1)
continue;
if (sscanf(line, " %*i: [%u- %u]: ", &device, &subdevice) != 2)
continue;
/* Only one sink per device */
if (subdevice != 0)
continue;
pa_snprintf(args, sizeof(args), "device_id=%u", device);
if (!pa_module_load(c, is_sink ? "module-alsa-sink" : "module-alsa-source", args))
continue;
n++;
if (is_sink)
n_sink++;
else
n_source++;
}
fclose(f);
return n;
}
FILE *pa_daemon_conf_open_default_script_file(pa_daemon_conf *c) {
FILE *f;
pa_assert(c);
if (!c->default_script_file) {
if (c->system_instance)
f = pa_open_config_file(DEFAULT_SYSTEM_SCRIPT_FILE, NULL, ENV_SCRIPT_FILE, &c->default_script_file);
else
f = pa_open_config_file(DEFAULT_SCRIPT_FILE, DEFAULT_SCRIPT_FILE_USER, ENV_SCRIPT_FILE, &c->default_script_file);
} else
f = pa_fopen_cloexec(c->default_script_file, "r");
return f;
}
static void save(struct userdata *u) {
FILE *f;
if (!u->modified)
return;
if (u->sink_filename) {
if ((f = pa_fopen_cloexec(u->sink_filename, "w"))) {
fprintf(f, "%s\n", u->core->configured_default_sink ? u->core->configured_default_sink : "");
fclose(f);
} else
pa_log("Failed to save default sink: %s", pa_cstrerror(errno));
}
if (u->source_filename) {
if ((f = pa_fopen_cloexec(u->source_filename, "w"))) {
fprintf(f, "%s\n", u->core->configured_default_source ? u->core->configured_default_source : "");
fclose(f);
} else
pa_log("Failed to save default source: %s", pa_cstrerror(errno));
}
u->modified = false;
}
static int proc_name_ours(pid_t pid, const char *procname) {
#ifdef __linux__
char bn[PATH_MAX];
FILE *f;
pa_snprintf(bn, sizeof(bn), "/proc/%lu/stat", (unsigned long) pid);
if (!(f = pa_fopen_cloexec(bn, "r"))) {
pa_log_info("Failed to open %s: %s", bn, pa_cstrerror(errno));
return -1;
} else {
char *expected;
pa_bool_t good;
char stored[64];
if (!(fgets(stored, sizeof(stored), f))) {
int saved_errno = feof(f) ? EINVAL : errno;
pa_log_info("Failed to read from %s: %s", bn, feof(f) ? "EOF" : pa_cstrerror(errno));
fclose(f);
errno = saved_errno;
return -1;
}
fclose(f);
expected = pa_sprintf_malloc("%lu (%s)", (unsigned long) pid, procname);
good = pa_startswith(stored, expected);
pa_xfree(expected);
/*#if !defined(__OPTIMIZE__)*/
if (!good) {
/* libtool likes to rename our binary names ... */
expected = pa_sprintf_malloc("%lu (lt-%s)", (unsigned long) pid, procname);
good = pa_startswith(stored, expected);
pa_xfree(expected);
}
/*#endif*/
return !!good;
}
#else
return 1;
#endif
}
int pa_daemon_conf_load(pa_daemon_conf *c, const char *filename) {
int r = -1;
FILE *f = NULL;
struct channel_conf_info ci;
pa_config_item table[] = {
{ "daemonize", pa_config_parse_bool, &c->daemonize, NULL },
{ "fail", pa_config_parse_bool, &c->fail, NULL },
{ "high-priority", pa_config_parse_bool, &c->high_priority, NULL },
{ "realtime-scheduling", pa_config_parse_bool, &c->realtime_scheduling, NULL },
{ "disallow-module-loading", pa_config_parse_bool, &c->disallow_module_loading, NULL },
{ "allow-module-loading", pa_config_parse_not_bool, &c->disallow_module_loading, NULL },
{ "disallow-exit", pa_config_parse_bool, &c->disallow_exit, NULL },
{ "allow-exit", pa_config_parse_not_bool, &c->disallow_exit, NULL },
{ "use-pid-file", pa_config_parse_bool, &c->use_pid_file, NULL },
{ "system-instance", pa_config_parse_bool, &c->system_instance, NULL },
#ifdef HAVE_DBUS
{ "local-server-type", parse_server_type, c, NULL },
#endif
{ "no-cpu-limit", pa_config_parse_bool, &c->no_cpu_limit, NULL },
{ "cpu-limit", pa_config_parse_not_bool, &c->no_cpu_limit, NULL },
{ "disable-shm", pa_config_parse_bool, &c->disable_shm, NULL },
{ "enable-shm", pa_config_parse_not_bool, &c->disable_shm, NULL },
{ "enable-memfd", pa_config_parse_not_bool, &c->disable_memfd, NULL },
{ "flat-volumes", pa_config_parse_bool, &c->flat_volumes, NULL },
{ "lock-memory", pa_config_parse_bool, &c->lock_memory, NULL },
{ "enable-deferred-volume", pa_config_parse_bool, &c->deferred_volume, NULL },
{ "exit-idle-time", pa_config_parse_int, &c->exit_idle_time, NULL },
{ "scache-idle-time", pa_config_parse_int, &c->scache_idle_time, NULL },
{ "realtime-priority", parse_rtprio, c, NULL },
{ "dl-search-path", pa_config_parse_string, &c->dl_search_path, NULL },
{ "default-script-file", pa_config_parse_string, &c->default_script_file, NULL },
{ "log-target", parse_log_target, c, NULL },
{ "log-level", parse_log_level, c, NULL },
{ "verbose", parse_log_level, c, NULL },
{ "resample-method", parse_resample_method, c, NULL },
{ "default-sample-format", parse_sample_format, c, NULL },
{ "default-sample-rate", parse_sample_rate, c, NULL },
{ "alternate-sample-rate", parse_alternate_sample_rate, c, NULL },
{ "default-sample-channels", parse_sample_channels, &ci, NULL },
{ "default-channel-map", parse_channel_map, &ci, NULL },
{ "default-fragments", parse_fragments, c, NULL },
{ "default-fragment-size-msec", parse_fragment_size_msec, c, NULL },
{ "deferred-volume-safety-margin-usec",
pa_config_parse_unsigned, &c->deferred_volume_safety_margin_usec, NULL },
{ "deferred-volume-extra-delay-usec",
pa_config_parse_int, &c->deferred_volume_extra_delay_usec, NULL },
{ "nice-level", parse_nice_level, c, NULL },
{ "avoid-resampling", pa_config_parse_bool, &c->avoid_resampling, NULL },
{ "disable-remixing", pa_config_parse_bool, &c->disable_remixing, NULL },
{ "enable-remixing", pa_config_parse_not_bool, &c->disable_remixing, NULL },
{ "remixing-use-all-sink-channels",
pa_config_parse_bool, &c->remixing_use_all_sink_channels, NULL },
{ "disable-lfe-remixing", pa_config_parse_bool, &c->disable_lfe_remixing, NULL },
{ "enable-lfe-remixing", pa_config_parse_not_bool, &c->disable_lfe_remixing, NULL },
{ "lfe-crossover-freq", pa_config_parse_unsigned, &c->lfe_crossover_freq, NULL },
{ "load-default-script-file", pa_config_parse_bool, &c->load_default_script_file, NULL },
{ "shm-size-bytes", pa_config_parse_size, &c->shm_size, NULL },
{ "log-meta", pa_config_parse_bool, &c->log_meta, NULL },
{ "log-time", pa_config_parse_bool, &c->log_time, NULL },
{ "log-backtrace", pa_config_parse_unsigned, &c->log_backtrace, NULL },
#ifdef HAVE_SYS_RESOURCE_H
{ "rlimit-fsize", parse_rlimit, &c->rlimit_fsize, NULL },
{ "rlimit-data", parse_rlimit, &c->rlimit_data, NULL },
{ "rlimit-stack", parse_rlimit, &c->rlimit_stack, NULL },
{ "rlimit-core", parse_rlimit, &c->rlimit_core, NULL },
#ifdef RLIMIT_RSS
{ "rlimit-rss", parse_rlimit, &c->rlimit_rss, NULL },
#endif
#ifdef RLIMIT_NOFILE
{ "rlimit-nofile", parse_rlimit, &c->rlimit_nofile, NULL },
#endif
#ifdef RLIMIT_AS
{ "rlimit-as", parse_rlimit, &c->rlimit_as, NULL },
#endif
#ifdef RLIMIT_NPROC
{ "rlimit-nproc", parse_rlimit, &c->rlimit_nproc, NULL },
#endif
#ifdef RLIMIT_MEMLOCK
{ "rlimit-memlock", parse_rlimit, &c->rlimit_memlock, NULL },
#endif
#ifdef RLIMIT_LOCKS
{ "rlimit-locks", parse_rlimit, &c->rlimit_locks, NULL },
#endif
#ifdef RLIMIT_SIGPENDING
{ "rlimit-sigpending", parse_rlimit, &c->rlimit_sigpending, NULL },
#endif
#ifdef RLIMIT_MSGQUEUE
{ "rlimit-msgqueue", parse_rlimit, &c->rlimit_msgqueue, NULL },
#endif
#ifdef RLIMIT_NICE
{ "rlimit-nice", parse_rlimit, &c->rlimit_nice, NULL },
#endif
#ifdef RLIMIT_RTPRIO
{ "rlimit-rtprio", parse_rlimit, &c->rlimit_rtprio, NULL },
#endif
#ifdef RLIMIT_RTTIME
{ "rlimit-rttime", parse_rlimit, &c->rlimit_rttime, NULL },
#endif
#endif
{ NULL, NULL, NULL, NULL },
};
pa_xfree(c->config_file);
c->config_file = NULL;
f = filename ?
pa_fopen_cloexec(c->config_file = pa_xstrdup(filename), "r") :
pa_open_config_file(DEFAULT_CONFIG_FILE, DEFAULT_CONFIG_FILE_USER, ENV_CONFIG_FILE, &c->config_file);
if (!f && errno != ENOENT) {
pa_log_warn(_("Failed to open configuration file: %s"), pa_cstrerror(errno));
goto finish;
}
ci.default_channel_map_set = ci.default_sample_spec_set = false;
ci.conf = c;
r = f ? pa_config_parse(c->config_file, f, table, NULL, true, NULL) : 0;
if (r >= 0) {
/* Make sure that channel map and sample spec fit together */
if (ci.default_sample_spec_set &&
ci.default_channel_map_set &&
c->default_channel_map.channels != c->default_sample_spec.channels) {
pa_log_error(_("The specified default channel map has a different number of channels than the specified default number of channels."));
r = -1;
goto finish;
} else if (ci.default_sample_spec_set)
pa_channel_map_init_extend(&c->default_channel_map, c->default_sample_spec.channels, PA_CHANNEL_MAP_DEFAULT);
else if (ci.default_channel_map_set)
c->default_sample_spec.channels = c->default_channel_map.channels;
}
finish:
if (f)
fclose(f);
return r;
}
static bool is_card_busy(const char *id) {
char *card_path = NULL, *pcm_path = NULL, *sub_status = NULL;
DIR *card_dir = NULL, *pcm_dir = NULL;
FILE *status_file = NULL;
size_t len;
struct dirent *space = NULL, *de;
bool busy = false;
int r;
pa_assert(id);
/* This simply uses /proc/asound/card.../pcm.../sub.../status to
* check whether there is still a process using this audio device. */
card_path = pa_sprintf_malloc("/proc/asound/card%s", id);
if (!(card_dir = opendir(card_path))) {
pa_log_warn("Failed to open %s: %s", card_path, pa_cstrerror(errno));
goto fail;
}
len = offsetof(struct dirent, d_name) + fpathconf(dirfd(card_dir), _PC_NAME_MAX) + 1;
space = pa_xmalloc(len);
for (;;) {
de = NULL;
if ((r = readdir_r(card_dir, space, &de)) != 0) {
pa_log_warn("readdir_r() failed: %s", pa_cstrerror(r));
goto fail;
}
if (!de)
break;
if (!pa_startswith(de->d_name, "pcm"))
continue;
if (pcm_is_modem(id, de->d_name + 3))
continue;
pa_xfree(pcm_path);
pcm_path = pa_sprintf_malloc("%s/%s", card_path, de->d_name);
if (pcm_dir)
closedir(pcm_dir);
if (!(pcm_dir = opendir(pcm_path))) {
pa_log_warn("Failed to open %s: %s", pcm_path, pa_cstrerror(errno));
continue;
}
for (;;) {
char line[32];
if ((r = readdir_r(pcm_dir, space, &de)) != 0) {
pa_log_warn("readdir_r() failed: %s", pa_cstrerror(r));
goto fail;
}
if (!de)
break;
if (!pa_startswith(de->d_name, "sub"))
continue;
pa_xfree(sub_status);
sub_status = pa_sprintf_malloc("%s/%s/status", pcm_path, de->d_name);
if (status_file)
fclose(status_file);
if (!(status_file = pa_fopen_cloexec(sub_status, "r"))) {
pa_log_warn("Failed to open %s: %s", sub_status, pa_cstrerror(errno));
continue;
}
if (!(fgets(line, sizeof(line)-1, status_file))) {
pa_log_warn("Failed to read from %s: %s", sub_status, pa_cstrerror(errno));
continue;
}
if (!pa_streq(line, "closed\n")) {
busy = true;
break;
}
}
}
fail:
pa_xfree(card_path);
pa_xfree(pcm_path);
pa_xfree(sub_status);
pa_xfree(space);
if (card_dir)
closedir(card_dir);
if (pcm_dir)
closedir(pcm_dir);
if (status_file)
fclose(status_file);
return busy;
}
