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jack: make a custom thread-utils

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Make a custom thread_utils that can use the configured global
thread creator and set this in the data-loop.

This ensure that the data loop uses the creator thread when activated.

See #1495
This commit is contained in:
Wim Taymans 2022-03-29 11:37:47 +02:00
parent d306786012
commit 6041d939a0
1 changed files with 83 additions and 34 deletions
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117
pipewire-jack/src/pipewire-jack.c
View file

@ -2486,6 +2486,77 @@ static const struct pw_client_node_events client_node_events = {
.port_set_mix_info = client_node_port_set_mix_info,
};
#define CHECK(expression,label) \
do { \
if ((errno = expression) != 0) { \
res = -errno; \
pw_log_error(#expression ": %s", strerror(errno)); \
goto label; \
} \
} while(false);
static struct spa_thread *impl_create(void *data,
const struct spa_dict *props,
void *(*start)(void*), void *arg)
{
struct spa_thread *thr;
int res = 0;
pw_log_info("create thread");
if (globals.creator != NULL) {
pthread_t pt;
pthread_attr_t attributes;
pthread_attr_init(&attributes);
CHECK(pthread_attr_setdetachstate(&attributes, PTHREAD_CREATE_JOINABLE), error);
CHECK(pthread_attr_setscope(&attributes, PTHREAD_SCOPE_SYSTEM), error);
CHECK(pthread_attr_setinheritsched(&attributes, PTHREAD_EXPLICIT_SCHED), error);
CHECK(pthread_attr_setstacksize(&attributes, THREAD_STACK), error);
res = -globals.creator(&pt, &attributes, start, arg);
pthread_attr_destroy(&attributes);
if (res != 0)
goto error;
thr = (struct spa_thread*)pt;
} else {
thr = pw_thread_utils_create(NULL, start, arg);
}
return thr;
error:
pw_log_warn("create RT thread failed: %s", strerror(res));
errno = -res;
return NULL;
}
static int impl_join(void *d,
struct spa_thread *thread, void **retval)
{
pw_log_info("join thread");
return pw_thread_utils_join(thread, retval);
}
static int impl_acquire_rt(void *data, struct spa_thread *thread, int priority)
{
return pw_thread_utils_acquire_rt(thread, priority);
}
static struct {
struct spa_thread_utils utils;
struct spa_thread_utils_methods methods;
} thread_utils_impl = {
{ { SPA_TYPE_INTERFACE_ThreadUtils,
SPA_VERSION_THREAD_UTILS,
SPA_CALLBACKS_INIT(&thread_utils_impl.methods,
&thread_utils_impl) } },
{ SPA_VERSION_THREAD_UTILS_METHODS,
.create = impl_create,
.join = impl_join,
.acquire_rt = impl_acquire_rt,
}
};
static jack_port_type_id_t string_to_type(const char *port_type)
{
if (spa_streq(JACK_DEFAULT_AUDIO_TYPE, port_type))
@ -3208,6 +3279,7 @@ jack_client_t * jack_client_open (const char *client_name,
client->loop = client->context.context->data_loop_impl;
pw_data_loop_stop(client->loop);
pw_data_loop_set_thread_utils(client->loop, &thread_utils_impl.utils);
spa_list_init(&client->links);
spa_list_init(&client->rt.target_links);
@ -5972,15 +6044,6 @@ int jack_client_max_real_time_priority (jack_client_t *client)
return SPA_MIN(max, c->rt_max) - 1;
}
#define CHECK(expression,label) \
do { \
if ((errno = expression) != 0) { \
res = -errno; \
pw_log_error(#expression ": %s", strerror(errno)); \
goto label; \
} \
} while(false);
SPA_EXPORT
int jack_acquire_real_time_scheduling (jack_native_thread_t thread, int priority)
{
@ -6020,41 +6083,27 @@ int jack_client_create_thread (jack_client_t* client,
void *arg)
{
int res = 0;
struct spa_thread *thr;
spa_return_val_if_fail(client != NULL, -EINVAL);
spa_return_val_if_fail(thread != NULL, -EINVAL);
spa_return_val_if_fail(start_routine != NULL, -EINVAL);
pw_log_info("client %p: create thread rt:%d prio:%d", client, realtime, priority);
if (globals.creator != NULL) {
pthread_attr_t attributes;
pthread_attr_init(&attributes);
CHECK(pthread_attr_setdetachstate(&attributes, PTHREAD_CREATE_JOINABLE), error);
CHECK(pthread_attr_setscope(&attributes, PTHREAD_SCOPE_SYSTEM), error);
CHECK(pthread_attr_setinheritsched(&attributes, PTHREAD_EXPLICIT_SCHED), error);
CHECK(pthread_attr_setstacksize(&attributes, THREAD_STACK), error);
thr = spa_thread_utils_create(&thread_utils_impl.utils, NULL, start_routine, arg);
if (thr == NULL)
res = -errno;
*thread = (pthread_t)thr;
res = globals.creator(thread, &attributes, start_routine, arg);
pthread_attr_destroy(&attributes);
} else {
struct spa_thread *thr;
thr = pw_thread_utils_create(NULL, start_routine, arg);
if (thr == NULL)
res = -errno;
*thread = (pthread_t)thr;
}
if (res == 0 && realtime) {
if (res != 0) {
pw_log_warn("client %p: create RT thread failed: %s",
client, strerror(res));
} else if (realtime) {
/* Try to acquire RT scheduling, we don't fail here but the
* function will emit a warning. Real JACK fails here. */
jack_acquire_real_time_scheduling(*thread, priority);
}
error:
if (res != 0)
pw_log_warn("client %p: create RT thread failed: %s",
client, strerror(res));
return res;
}