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Add connection message for PORT_COMMAND
Add rtkit support to ask for realtime priority
work on stream states and improve negotiation
Rework of port linking works, keep separate state for realtime threads
and use message passing to update the state.
Don't try to link nodes that are removed.
Open the device in the ALSA monitor to detect source or sink
Implement send_command as async methods on the plugins, use async
replies to sync start and stop.
Work on alsa sink.
Implement async PAUSE/START on v4l2 src. move the STREAMON/OFF calls to
the mainloop because they have high latency, add the poll descriptors
from the data loop.
This commit is contained in:
Wim Taymans 2016-10-28 16:56:33 +02:00
parent 984375c0b2
commit 3f4ccaaea2
32 changed files with 1335 additions and 545 deletions
Download patch file Download diff file Expand all files Collapse all files

61
pinos/server/data-loop.c
View file

@ -17,15 +17,20 @@
* Boston, MA 02110-1301, USA.
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <poll.h>
#include <errno.h>
#include <sys/eventfd.h>
#include <limits.h>
#include <sys/time.h>
#include <sys/resource.h>
#include <gio/gio.h>
#include "spa/include/spa/ringbuffer.h"
#include "pinos/client/rtkit.h"
#include "pinos/server/data-loop.h"
#define PINOS_DATA_LOOP_GET_PRIVATE(loop) \
@ -60,6 +65,7 @@ struct _PinosDataLoopPrivate
gboolean running;
pthread_t thread;
};
G_DEFINE_TYPE (PinosDataLoop, pinos_data_loop, G_TYPE_OBJECT);
@ -74,6 +80,52 @@ enum
LAST_SIGNAL
};
static void
make_realtime (PinosDataLoop *this)
{
struct sched_param sp;
GDBusConnection *system_bus;
GError *error = NULL;
struct rlimit rl;
int r, rtprio;
long long rttime;
rtprio = 20;
rttime = 20000;
spa_zero (sp);
sp.sched_priority = rtprio;
if (pthread_setschedparam (pthread_self(), SCHED_RR|SCHED_RESET_ON_FORK, &sp) == 0) {
g_debug ("SCHED_OTHER|SCHED_RESET_ON_FORK worked.");
return;
}
system_bus = g_bus_get_sync (G_BUS_TYPE_SYSTEM, NULL, NULL);
rl.rlim_cur = rl.rlim_max = rttime;
if ((r = setrlimit (RLIMIT_RTTIME, &rl)) < 0)
g_debug ("setrlimit() failed: %s", strerror (errno));
if (rttime >= 0) {
r = getrlimit (RLIMIT_RTTIME, &rl);
if (r >= 0 && (long long) rl.rlim_max > rttime) {
g_debug ("Clamping rlimit-rttime to %lld for RealtimeKit", rttime);
rl.rlim_cur = rl.rlim_max = rttime;
if ((r = setrlimit (RLIMIT_RTTIME, &rl)) < 0)
g_debug ("setrlimit() failed: %s", strerror (errno));
}
}
if (!pinos_rtkit_make_realtime (system_bus, 0, rtprio, &error)) {
g_debug ("could not make thread realtime: %s", error->message);
g_clear_error (&error);
} else {
g_debug ("thread made realtime");
}
g_object_unref (system_bus);
}
static void *
loop (void *user_data)
{
@ -82,11 +134,14 @@ loop (void *user_data)
SpaPoll *p = &this->poll;
unsigned int i, j;
make_realtime (this);
g_debug ("data-loop %p: enter thread", this);
while (priv->running) {
SpaPollNotifyData ndata;
unsigned int n_idle = 0;
int r;
struct timespec ts;
/* prepare */
for (i = 0; i < priv->n_poll; i++) {
@ -161,6 +216,9 @@ loop (void *user_data)
continue;
}
// clock_gettime (CLOCK_MONOTONIC, &ts);
// fprintf (stderr, "%llu\n", SPA_TIMESPEC_TO_TIME (&ts));
/* after */
for (i = 0; i < priv->n_poll; i++) {
SpaPollItem *p = &priv->poll[i];
@ -284,9 +342,6 @@ do_remove_item (SpaPoll *poll,
if (!in_thread)
wakeup_thread (this);
}
if (priv->n_poll == 0) {
stop_thread (this, in_thread);
}
return SPA_RESULT_OK;
}