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);
}
/* Read the PID data from the file descriptor fd, and return it. If no
* pid could be read, return 0, on failure (pid_t) -1 */
static pid_t read_pid(const char *fn, int fd) {
ssize_t r;
char t[20], *e;
uint32_t pid;
pa_assert(fn);
pa_assert(fd >= 0);
if ((r = pa_loop_read(fd, t, sizeof(t)-1, NULL)) < 0) {
pa_log_warn("Failed to read PID file '%s': %s", fn, pa_cstrerror(errno));
return (pid_t) -1;
}
if (r == 0)
return (pid_t) 0;
t[r] = 0;
if ((e = strchr(t, '\n')))
*e = 0;
if (pa_atou(t, &pid) < 0) {
pa_log_warn("Failed to parse PID file '%s'", fn);
errno = EINVAL;
return (pid_t) -1;
}
return (pid_t) pid;
}
/* Raise the priority of the current process as much as possible that
* is <= the specified nice level..*/
int pa_raise_priority(int nice_level) {
#ifdef HAVE_SYS_RESOURCE_H
if (setpriority(PRIO_PROCESS, 0, nice_level) < 0) {
int n;
for (n = nice_level+1; n < 0; n++) {
if (setpriority(PRIO_PROCESS, 0, n) == 0) {
pa_log_info("Successfully acquired nice level %i, which is lower than the requested %i.", n, nice_level);
return 0;
}
}
pa_log_warn("setpriority(): %s", pa_cstrerror(errno));
return -1;
}
pa_log_info("Successfully gained nice level %i.", nice_level);
#endif
#ifdef OS_IS_WIN32
if (nice_level < 0) {
if (!SetPriorityClass(GetCurrentProcess(), HIGH_PRIORITY_CLASS)) {
pa_log_warn("SetPriorityClass() failed: 0x%08X", GetLastError());
return .-1;
} else
static pa_dbus_connection *register_dbus(pa_core *c) {
DBusError error;
pa_dbus_connection *conn;
dbus_error_init(&error);
if (!(conn = pa_dbus_bus_get(c, pa_in_system_mode() ? DBUS_BUS_SYSTEM : DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
pa_log_warn("Unable to contact D-Bus: %s: %s", error.name, error.message);
goto fail;
}
if (dbus_bus_request_name(pa_dbus_connection_get(conn), "org.pulseaudio.Server", DBUS_NAME_FLAG_DO_NOT_QUEUE, &error) == DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
pa_log_debug("Got org.pulseaudio.Server!");
return conn;
}
if (dbus_error_is_set(&error))
pa_log_warn("Failed to acquire org.pulseaudio.Server: %s: %s", error.name, error.message);
else
pa_log_warn("D-Bus name org.pulseaudio.Server already taken. Weird shit!");
/* PA cannot be started twice by the same user and hence we can
* ignore mostly the case that org.pulseaudio.Server is already
* taken. */
fail:
if (conn)
pa_dbus_connection_unref(conn);
dbus_error_free(&error);
return NULL;
}
/* Load an authorization cookie from file fn and store it in data. If
* the cookie file doesn't exist, create it */
static int load(const char *fn, void *data, size_t length) {
int fd = -1;
int writable = 1;
int unlock = 0, ret = -1;
ssize_t r;
pa_assert(fn);
pa_assert(data);
pa_assert(length > 0);
if ((fd = pa_open_cloexec(fn, O_RDWR|O_CREAT|O_BINARY, S_IRUSR|S_IWUSR)) < 0) {
if (errno != EACCES || (fd = open(fn, O_RDONLY|O_BINARY)) < 0) {
pa_log_warn("Failed to open cookie file '%s': %s", fn, pa_cstrerror(errno));
goto finish;
} else
writable = 0;
}
unlock = pa_lock_fd(fd, 1) >= 0;
if ((r = pa_loop_read(fd, data, length, NULL)) < 0) {
pa_log("Failed to read cookie file '%s': %s", fn, pa_cstrerror(errno));
goto finish;
}
if ((size_t) r != length) {
pa_log_debug("Got %d bytes from cookie file '%s', expected %d", (int) r, fn, (int) length);
if (!writable) {
pa_log_warn("Unable to write cookie to read-only file");
goto finish;
}
if (generate(fd, data, length) < 0)
goto finish;
}
ret = 0;
finish:
if (fd >= 0) {
if (unlock)
pa_lock_fd(fd, 0);
if (pa_close(fd) < 0) {
pa_log_warn("Failed to close cookie file: %s", pa_cstrerror(errno));
ret = -1;
}
}
return ret;
}
static int open_pid_file(const char *fn, int mode) {
int fd;
pa_assert(fn);
for (;;) {
struct stat st;
if ((fd = pa_open_cloexec(fn, mode
#ifdef O_NOFOLLOW
|O_NOFOLLOW
#endif
, S_IRUSR|S_IWUSR
)) < 0) {
if (mode != O_RDONLY || errno != ENOENT)
pa_log_warn("Failed to open PID file '%s': %s", fn, pa_cstrerror(errno));
goto fail;
}
/* Try to lock the file. If that fails, go without */
if (pa_lock_fd(fd, 1) < 0)
goto fail;
if (fstat(fd, &st) < 0) {
pa_log_warn("Failed to fstat() PID file '%s': %s", fn, pa_cstrerror(errno));
goto fail;
}
/* Does the file still exist in the file system? When yes, we're done, otherwise restart */
if (st.st_nlink >= 1)
break;
if (pa_lock_fd(fd, 0) < 0)
goto fail;
if (pa_close(fd) < 0) {
pa_log_warn("Failed to close file '%s': %s", fn, pa_cstrerror(errno));
fd = -1;
goto fail;
}
}
return fd;
fail:
if (fd >= 0) {
int saved_errno = errno;
pa_lock_fd(fd, 0);
pa_close(fd);
errno = saved_errno;
}
return -1;
}
static struct entry* read_entry(struct userdata *u, const char *name) {
pa_datum key, data;
struct entry *e;
pa_assert(u);
pa_assert(name);
key.data = (char*) name;
key.size = strlen(name);
pa_zero(data);
if (!pa_database_get(u->database, &key, &data))
goto fail;
if (data.size != sizeof(struct entry)) {
pa_log_debug("Database contains entry for device %s of wrong size %lu != %lu. Probably due to upgrade, ignoring.", name, (unsigned long) data.size, (unsigned long) sizeof(struct entry));
goto fail;
}
e = (struct entry*) data.data;
if (e->version != ENTRY_VERSION) {
pa_log_debug("Version of database entry for device %s doesn't match our version. Probably due to upgrade, ignoring.", name);
goto fail;
}
if (!memchr(e->port, 0, sizeof(e->port))) {
pa_log_warn("Database contains entry for device %s with missing NUL byte in port name", name);
goto fail;
}
if (e->volume_valid && !pa_channel_map_valid(&e->channel_map)) {
pa_log_warn("Invalid channel map stored in database for device %s", name);
goto fail;
}
if (e->volume_valid && (!pa_cvolume_valid(&e->volume) || !pa_cvolume_compatible_with_channel_map(&e->volume, &e->channel_map))) {
pa_log_warn("Volume and channel map don't match in database entry for device %s", name);
goto fail;
}
return e;
fail:
pa_datum_free(&data);
return NULL;
}
static int sco_acquire_cb(pa_bluetooth_transport *t, bool optional, size_t *imtu, size_t *omtu) {
int sock;
socklen_t len;
if (optional)
sock = sco_do_accept(t);
else
sock = sco_do_connect(t);
if (sock < 0)
goto fail;
if (imtu) *imtu = 48;
if (omtu) *omtu = 48;
if (t->device->autodetect_mtu) {
struct sco_options sco_opt;
len = sizeof(sco_opt);
memset(&sco_opt, 0, len);
if (getsockopt(sock, SOL_SCO, SCO_OPTIONS, &sco_opt, &len) < 0)
pa_log_warn("getsockopt(SCO_OPTIONS) failed, loading defaults");
else {
if (imtu) *imtu = sco_opt.mtu;
if (omtu) *omtu = sco_opt.mtu;
}
}
return sock;
fail:
return -1;
}
static int parse_rlimit(const char *filename, unsigned line, const char *section, const char *lvalue, const char *rvalue, void *data, void *userdata) {
#ifdef HAVE_SYS_RESOURCE_H
struct pa_rlimit *r = data;
pa_assert(filename);
pa_assert(lvalue);
pa_assert(rvalue);
pa_assert(r);
if (rvalue[strspn(rvalue, "\t ")] == 0) {
/* Empty string */
r->is_set = 0;
r->value = 0;
} else {
int32_t k;
if (pa_atoi(rvalue, &k) < 0) {
pa_log(_("[%s:%u] Invalid rlimit '%s'."), filename, line, rvalue);
return -1;
}
r->is_set = k >= 0;
r->value = k >= 0 ? (rlim_t) k : 0;
}
#else
pa_log_warn(_("[%s:%u] rlimit not supported on this platform."), filename, line);
#endif
return 0;
}
static pa_dbus_connection *register_dbus_name(pa_core *c, DBusBusType bus, const char* name) {
DBusError error;
pa_dbus_connection *conn;
dbus_error_init(&error);
if (!(conn = pa_dbus_bus_get(c, bus, &error)) || dbus_error_is_set(&error)) {
pa_log_warn("Unable to contact D-Bus: %s: %s", error.name, error.message);
goto fail;
}
if (dbus_bus_request_name(pa_dbus_connection_get(conn), name, DBUS_NAME_FLAG_DO_NOT_QUEUE, &error) == DBUS_REQUEST_NAME_REPLY_PRIMARY_OWNER) {
pa_log_debug("Got %s!", name);
return conn;
}
if (dbus_error_is_set(&error))
pa_log_error("Failed to acquire %s: %s: %s", name, error.name, error.message);
else
pa_log_error("D-Bus name %s already taken.", name);
/* PA cannot be started twice by the same user and hence we can
* ignore mostly the case that a name is already taken. */
fail:
if (conn)
pa_dbus_connection_unref(conn);
dbus_error_free(&error);
return NULL;
}
static void inotify_cb(
pa_mainloop_api *a,
pa_io_event *e,
int fd,
pa_io_event_flags_t events,
void *userdata) {
struct {
struct inotify_event event;
char name[NAME_MAX+1];
} buf;
pa_inotify *i = userdata;
int pid_fd;
pa_assert(i);
if (pa_read(fd, &buf, sizeof(buf), NULL) < (int) sizeof(buf.event))
pa_log_warn("inotify did not read a full event.");
else
pa_log_debug("inotify callback, event mask: 0x%x", (int) buf.event.mask);
pid_fd = pa_open_cloexec(i->filename, O_RDONLY
#ifdef O_NOFOLLOW
|O_NOFOLLOW
#endif
, S_IRUSR);
if (pid_fd < 0) {
if (i->callback)
i->callback(i->callback_data);
} else
pa_close(pid_fd);
}
static void load_null_sink_if_needed(pa_core *c, pa_sink *sink, struct userdata* u) {
pa_sink *target;
uint32_t idx;
char *t;
pa_module *m;
pa_assert(c);
pa_assert(u);
pa_assert(u->null_module == PA_INVALID_INDEX);
/* Loop through all sinks and check to see if we have *any*
* sinks. Ignore the sink passed in (if it's not null) */
for (target = pa_idxset_first(c->sinks, &idx); target; target = pa_idxset_next(c->sinks, &idx))
if (!sink || target != sink)
break;
if (target)
return;
pa_log_debug("Autoloading null-sink as no other sinks detected.");
u->ignore = TRUE;
t = pa_sprintf_malloc("sink_name=%s sink_properties='device.description=\"%s\"'", u->sink_name,
_("Dummy Output"));
m = pa_module_load(c, "module-null-sink", t);
u->null_module = m ? m->index : PA_INVALID_INDEX;
pa_xfree(t);
u->ignore = FALSE;
if (!m)
pa_log_warn("Unable to load module-null-sink");
}
void pa_mempool_free(pa_mempool *p) {
pa_assert(p);
pa_mutex_lock(p->mutex);
while (p->imports)
pa_memimport_free(p->imports);
while (p->exports)
pa_memexport_free(p->exports);
pa_mutex_unlock(p->mutex);
pa_flist_free(p->free_slots, NULL);
if (pa_atomic_load(&p->stat.n_allocated) > 0) {
/* raise(SIGTRAP); */
pa_log_warn("Memory pool destroyed but not all memory blocks freed! %u remain.", pa_atomic_load(&p->stat.n_allocated));
}
pa_shm_free(&p->memory);
pa_mutex_free(p->mutex);
pa_semaphore_free(p->semaphore);
pa_xfree(p);
}
pa_dbusobj_server_lookup *pa_dbusobj_server_lookup_new(pa_core *c) {
pa_dbusobj_server_lookup *sl;
DBusError error;
dbus_error_init(&error);
sl = pa_xnew(pa_dbusobj_server_lookup, 1);
sl->core = c;
sl->path_registered = false;
if (!(sl->conn = pa_dbus_bus_get(c, DBUS_BUS_SESSION, &error)) || dbus_error_is_set(&error)) {
pa_log_warn("Unable to contact D-Bus: %s: %s", error.name, error.message);
goto fail;
}
if (!dbus_connection_register_object_path(pa_dbus_connection_get(sl->conn), OBJECT_PATH, &vtable, sl)) {
pa_log("dbus_connection_register_object_path() failed for " OBJECT_PATH ".");
goto fail;
}
sl->path_registered = true;
return sl;
fail:
dbus_error_free(&error);
pa_dbusobj_server_lookup_free(sl);
return NULL;
}
static bool parse_device_list(const char *str, audio_devices_t *dst) {
char *dev;
const char *state = NULL;
pa_assert(str);
pa_assert(dst);
*dst = 0;
while ((dev = pa_split(str, "|", &state))) {
audio_devices_t d;
if (!pa_string_convert_input_device_str_to_num(dev, &d)) {
pa_log_warn("Unknown device %s", dev);
pa_xfree(dev);
return false;
}
*dst |= d;
pa_xfree(dev);
}
return true;
}
static void jack_error_func(const char*t) {
char *s;
s = pa_xstrndup(t, strcspn(t, "\n\r"));
pa_log_warn("JACK error >%s<", s);
pa_xfree(s);
}
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
int ret = -1;
uint32_t pid = 0;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
pa_modargs_get_value_u32(ma, "pid", &pid) < 0 ||
!pid) {
pa_log("Failed to parse module arguments");
goto finish;
}
if (kill((pid_t) pid, SIGUSR1) < 0)
pa_log_warn("kill(%u) failed: %s", pid, pa_cstrerror(errno));
pa_module_unload_request(m, true);
ret = 0;
finish:
if (ma)
pa_modargs_free(ma);
return ret;
}
void pa_asyncq_post(pa_asyncq*l, void *p) {
struct localq *q;
pa_assert(l);
pa_assert(p);
if (flush_postq(l, FALSE))
if (pa_asyncq_push(l, p, FALSE) >= 0)
return;
/* OK, we couldn't push anything in the queue. So let's queue it
* locally and push it later */
if (pa_log_ratelimit())
pa_log_warn("q overrun, queuing locally");
if (!(q = pa_flist_pop(PA_STATIC_FLIST_GET(localq))))
q = pa_xnew(struct localq, 1);
q->data = p;
PA_LLIST_PREPEND(struct localq, l->localq, q);
if (!l->last_localq)
l->last_localq = q;
return;
}
static struct pa_policy_group* get_group(struct userdata *u, const char *group_name, pa_proplist *sinp_proplist, uint32_t *flags_ret)
{
struct pa_policy_group *group = NULL;
const void *flags;
size_t len_flags = 0;
pa_assert(u);
pa_assert(sinp_proplist);
/* If group name is provided use that, otherwise check sink input proplist. */
if (!group_name)
/* Just grab the group name from the proplist to avoid classifying multiple
* times (and to avoid classifying incorrectly if properties are
* overwritten when handling PA_CORE_HOOK_SINK_INPUT_NEW).*/
group_name = pa_proplist_gets(sinp_proplist, PA_PROP_POLICY_GROUP);
if (group_name && (group = pa_policy_group_find(u, group_name)) != NULL) {
/* Only update flags if flags_ret is non null */
if (flags_ret) {
if (pa_proplist_get(sinp_proplist, PA_PROP_POLICY_STREAM_FLAGS, &flags, &len_flags) < 0 ||
len_flags != sizeof(uint32_t)) {
pa_log_warn("No stream flags in proplist or malformed flags.");
*flags_ret = 0;
} else
*flags_ret = *(uint32_t *)flags;
}
}
return group;
}
int pa__init(pa_module*m) {
pa_modargs *ma = NULL;
int ret = -1;
int32_t fd = -1;
char x = 1;
pa_assert(m);
if (!(ma = pa_modargs_new(m->argument, valid_modargs)) ||
pa_modargs_get_value_s32(ma, "fd", &fd) < 0 ||
fd < 0) {
pa_log("Failed to parse module arguments");
goto finish;
}
if (pa_loop_write(fd, &x, sizeof(x), NULL) != sizeof(x))
pa_log_warn("write(%u, 1, 1) failed: %s", fd, pa_cstrerror(errno));
pa_assert_se(pa_close(fd) == 0);
pa_module_unload_request(m, true);
ret = 0;
finish:
if (ma)
pa_modargs_free(ma);
return ret;
}
void pa_rtclock_hrtimer_enable(void) {
#ifdef PR_SET_TIMERSLACK
int slack_ns;
if ((slack_ns = prctl(PR_GET_TIMERSLACK, 0, 0, 0, 0)) < 0) {
pa_log_info("PR_GET_TIMERSLACK/PR_SET_TIMERSLACK not supported.");
return;
}
pa_log_debug("Timer slack is set to %i us.", (int) (slack_ns/PA_NSEC_PER_USEC));
if (slack_ns > TIMER_SLACK_NS) {
slack_ns = TIMER_SLACK_NS;
pa_log_debug("Setting timer slack to %i us.", (int) (slack_ns/PA_NSEC_PER_USEC));
if (prctl(PR_SET_TIMERSLACK, slack_ns, 0, 0, 0) < 0) {
pa_log_warn("PR_SET_TIMERSLACK failed: %s", pa_cstrerror(errno));
return;
}
}
#elif defined(OS_IS_WIN32)
LARGE_INTEGER freq;
pa_assert_se(QueryPerformanceFrequency(&freq));
counter_freq = freq.QuadPart;
#endif
}
/* pa_io_event_cb_t IO event handler */
static void handle_io_event(pa_mainloop_api *ea, pa_io_event *e, int fd, pa_io_event_flags_t events, void *userdata) {
unsigned int flags = 0;
DBusWatch *watch = userdata;
#if HAVE_DBUS_WATCH_GET_UNIX_FD
pa_assert(fd == dbus_watch_get_unix_fd(watch));
#else
pa_assert(fd == dbus_watch_get_fd(watch));
#endif
if (!dbus_watch_get_enabled(watch)) {
pa_log_warn("Asked to handle disabled watch: %p %i", (void*) watch, fd);
return;
}
if (events & PA_IO_EVENT_INPUT)
flags |= DBUS_WATCH_READABLE;
if (events & PA_IO_EVENT_OUTPUT)
flags |= DBUS_WATCH_WRITABLE;
if (events & PA_IO_EVENT_HANGUP)
flags |= DBUS_WATCH_HANGUP;
if (events & PA_IO_EVENT_ERROR)
flags |= DBUS_WATCH_ERROR;
dbus_watch_handle(watch, flags);
}
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));
}
/* Called from main context */
static void adjust_rates(struct userdata *u) {
size_t buffer, fs;
uint32_t old_rate, base_rate, new_rate;
pa_usec_t buffer_latency;
pa_assert(u);
pa_assert_ctl_context();
pa_asyncmsgq_send(u->source_output->source->asyncmsgq, PA_MSGOBJECT(u->source_output), SOURCE_OUTPUT_MESSAGE_LATENCY_SNAPSHOT, NULL, 0, NULL);
pa_asyncmsgq_send(u->sink_input->sink->asyncmsgq, PA_MSGOBJECT(u->sink_input), SINK_INPUT_MESSAGE_LATENCY_SNAPSHOT, NULL, 0, NULL);
buffer =
u->latency_snapshot.sink_input_buffer +
u->latency_snapshot.source_output_buffer;
if (u->latency_snapshot.recv_counter <= u->latency_snapshot.send_counter)
buffer += (size_t) (u->latency_snapshot.send_counter - u->latency_snapshot.recv_counter);
else
buffer += PA_CLIP_SUB(buffer, (size_t) (u->latency_snapshot.recv_counter - u->latency_snapshot.send_counter));
buffer_latency = pa_bytes_to_usec(buffer, &u->sink_input->sample_spec);
pa_log_debug("Loopback overall latency is %0.2f ms + %0.2f ms + %0.2f ms = %0.2f ms",
(double) u->latency_snapshot.sink_latency / PA_USEC_PER_MSEC,
(double) buffer_latency / PA_USEC_PER_MSEC,
(double) u->latency_snapshot.source_latency / PA_USEC_PER_MSEC,
((double) u->latency_snapshot.sink_latency + buffer_latency + u->latency_snapshot.source_latency) / PA_USEC_PER_MSEC);
pa_log_debug("Should buffer %zu bytes, buffered at minimum %zu bytes",
u->latency_snapshot.max_request*2,
u->latency_snapshot.min_memblockq_length);
fs = pa_frame_size(&u->sink_input->sample_spec);
old_rate = u->sink_input->sample_spec.rate;
base_rate = u->source_output->sample_spec.rate;
if (u->latency_snapshot.min_memblockq_length < u->latency_snapshot.max_request*2)
new_rate = base_rate - (((u->latency_snapshot.max_request*2 - u->latency_snapshot.min_memblockq_length) / fs) *PA_USEC_PER_SEC)/u->adjust_time;
else
new_rate = base_rate + (((u->latency_snapshot.min_memblockq_length - u->latency_snapshot.max_request*2) / fs) *PA_USEC_PER_SEC)/u->adjust_time;
if (new_rate < (uint32_t) (base_rate*0.8) || new_rate > (uint32_t) (base_rate*1.25)) {
pa_log_warn("Sample rates too different, not adjusting (%u vs. %u).", base_rate, new_rate);
new_rate = base_rate;
} else {
if (base_rate < new_rate + 20 && new_rate < base_rate + 20)
new_rate = base_rate;
/* Do the adjustment in small steps; 2‰ can be considered inaudible */
if (new_rate < (uint32_t) (old_rate*0.998) || new_rate > (uint32_t) (old_rate*1.002)) {
pa_log_info("New rate of %u Hz not within 2‰ of %u Hz, forcing smaller adjustment", new_rate, old_rate);
new_rate = PA_CLAMP(new_rate, (uint32_t) (old_rate*0.998), (uint32_t) (old_rate*1.002));
}
}
pa_sink_input_set_rate(u->sink_input, new_rate);
pa_log_debug("[%s] Updated sampling rate to %lu Hz.", u->sink_input->sink->name, (unsigned long) new_rate);
pa_core_rttime_restart(u->core, u->time_event, pa_rtclock_now() + u->adjust_time);
}
/** Creates a directory securely */
int pa_make_secure_dir(const char* dir, mode_t m, uid_t uid, gid_t gid) {
struct stat st;
int r;
pa_assert(dir);
#ifdef OS_IS_WIN32
r = mkdir(dir);
#else
{
mode_t u;
u = umask(~m);
r = mkdir(dir, m);
umask(u);
}
#endif
if (r < 0 && errno != EEXIST)
return -1;
#ifdef HAVE_CHOWN
if (uid == (uid_t)-1)
uid = getuid();
if (gid == (gid_t)-1)
gid = getgid();
(void) chown(dir, uid, gid);
#endif
#ifdef HAVE_CHMOD
chmod(dir, m);
#endif
#ifdef HAVE_LSTAT
if (lstat(dir, &st) < 0)
#else
if (stat(dir, &st) < 0)
#endif
goto fail;
#ifndef OS_IS_WIN32
if (!S_ISDIR(st.st_mode) ||
(st.st_uid != uid) ||
(st.st_gid != gid) ||
((st.st_mode & 0777) != m)) {
errno = EACCES;
goto fail;
}
#else
pa_log_warn("secure directory creation not supported on Win32.");
#endif
return 0;
fail:
rmdir(dir);
return -1;
}
/* Store the specified cookie in the specified cookie file */
int pa_authkey_save(const char *fn, const void *data, size_t length) {
int fd = -1;
int unlock = 0, ret = -1;
ssize_t r;
char *p;
pa_assert(fn);
pa_assert(data);
pa_assert(length > 0);
if (!(p = normalize_path(fn)))
return -2;
if ((fd = pa_open_cloexec(p, O_RDWR|O_CREAT, S_IRUSR|S_IWUSR)) < 0) {
pa_log_warn("Failed to open cookie file '%s': %s", fn, pa_cstrerror(errno));
goto finish;
}
unlock = pa_lock_fd(fd, 1) >= 0;
if ((r = pa_loop_write(fd, data, length, NULL)) < 0 || (size_t) r != length) {
pa_log("Failed to read cookie file '%s': %s", fn, pa_cstrerror(errno));
goto finish;
}
ret = 0;
finish:
if (fd >= 0) {
if (unlock)
pa_lock_fd(fd, 0);
if (pa_close(fd) < 0) {
pa_log_warn("Failed to close cookie file: %s", pa_cstrerror(errno));
ret = -1;
}
}
pa_xfree(p);
return ret;
}
static int do_write(struct userdata *u) {
ssize_t r;
pa_assert(u);
if (!pa_iochannel_is_writable(u->io))
return 0;
if (u->write_data) {
pa_assert(u->write_index < u->write_length);
if ((r = pa_iochannel_write(u->io, (uint8_t*) u->write_data + u->write_index, u->write_length - u->write_index)) <= 0) {
pa_log("write() failed: %s", pa_cstrerror(errno));
return -1;
}
u->write_index += (size_t) r;
pa_assert(u->write_index <= u->write_length);
if (u->write_index == u->write_length) {
pa_xfree(u->write_data);
u->write_data = NULL;
u->write_index = u->write_length = 0;
}
}
if (!u->write_data && u->state == STATE_PREPARE) {
int so_sndbuf = 0;
socklen_t sl = sizeof(int);
/* OK, we're done with sending all control data we need to, so
* let's hand the socket over to the IO thread now */
pa_assert(u->fd < 0);
u->fd = pa_iochannel_get_send_fd(u->io);
pa_iochannel_set_noclose(u->io, TRUE);
pa_iochannel_free(u->io);
u->io = NULL;
pa_make_tcp_socket_low_delay(u->fd);
if (getsockopt(u->fd, SOL_SOCKET, SO_SNDBUF, &so_sndbuf, &sl) < 0)
pa_log_warn("getsockopt(SO_SNDBUF) failed: %s", pa_cstrerror(errno));
else {
pa_log_debug("SO_SNDBUF is %zu.", (size_t) so_sndbuf);
pa_sink_set_max_request(u->sink, PA_MAX((size_t) so_sndbuf, u->block_size));
}
pa_log_debug("Connection authenticated, handing fd to IO thread...");
pa_asyncmsgq_post(u->thread_mq.inq, PA_MSGOBJECT(u->sink), SINK_MESSAGE_PASS_SOCKET, NULL, 0, NULL, NULL);
u->state = STATE_RUNNING;
}
return 0;
}
void pa_client_kill(pa_client *c) {
pa_assert(c);
if (!c->kill) {
pa_log_warn("kill() operation not implemented for client %u", c->index);
return;
}
c->kill(c);
}
static void callback(pa_mainloop_api *mainloop, pa_io_event *e, int fd, pa_io_event_flags_t f, void *userdata) {
pa_socket_server *s = userdata;
pa_iochannel *io;
int nfd;
pa_assert(s);
pa_assert(PA_REFCNT_VALUE(s) >= 1);
pa_assert(s->mainloop == mainloop);
pa_assert(s->io_event == e);
pa_assert(e);
pa_assert(fd >= 0);
pa_assert(fd == s->fd);
pa_socket_server_ref(s);
if ((nfd = pa_accept_cloexec(fd, NULL, NULL)) < 0) {
pa_log("accept(): %s", pa_cstrerror(errno));
goto finish;
}
if (!s->on_connection) {
pa_close(nfd);
goto finish;
}
#ifdef HAVE_LIBWRAP
if (s->tcpwrap_service) {
struct request_info req;
request_init(&req, RQ_DAEMON, s->tcpwrap_service, RQ_FILE, nfd, NULL);
fromhost(&req);
if (!hosts_access(&req)) {
pa_log_warn("TCP connection refused by tcpwrap.");
pa_close(nfd);
goto finish;
}
pa_log_info("TCP connection accepted by tcpwrap.");
}
#endif
/* There should be a check for socket type here */
if (s->type == SOCKET_SERVER_IPV4)
pa_make_tcp_socket_low_delay(fd);
else
pa_make_socket_low_delay(fd);
pa_assert_se(io = pa_iochannel_new(s->mainloop, nfd, nfd));
s->on_connection(s, io, s->userdata);
finish:
pa_socket_server_unref(s);
}
int mv_parse_steps(struct mv_userdata *u, const char *route, const char *step_string_call, const char *step_string_media) {
int count1 = 0;
int count2 = 0;
struct mv_volume_steps_set *set;
struct mv_volume_steps call_steps;
struct mv_volume_steps media_steps;
pa_assert(u);
pa_assert(u->steps);
pa_assert(route);
if (!step_string_call || !step_string_media) {
return 0;
}
count1 = mv_parse_single_steps(&call_steps, step_string_call);
if (count1 < 1) {
pa_log_warn("failed to parse call steps; %s", step_string_call);
return -1;
}
mv_normalize_steps(&call_steps);
count2 = mv_parse_single_steps(&media_steps, step_string_media);
if (count2 < 1) {
pa_log_warn("failed to parse media steps; %s", step_string_media);
return -1;
}
mv_normalize_steps(&media_steps);
set = pa_xnew0(struct mv_volume_steps_set, 1);
set->route = pa_xstrdup(route);
set->call = call_steps;
set->media = media_steps;
pa_log_debug("adding %d call and %d media steps with route %s",
set->call.n_steps,
set->media.n_steps,
set->route);
pa_hashmap_put(u->steps, set->route, set);
return count1 + count2;
}
