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[common/client] platform: add portable worker primitives

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This commit is contained in:
Geoffrey McRae
2026-09-12 08:26:43 +10:00
parent 9c8343df96
commit 62a8786fe2
13 changed files with 417 additions and 108 deletions
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81
client/src/audio.c
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@@ -26,18 +26,17 @@
#include "common/debug.h"
#include "common/event.h"
#include "common/locking.h"
#include "common/semaphore.h"
#include "common/thread.h"
#include "common/util.h"
#include "common/ringbuffer.h"
#include "dynamic/audiodev.h"
#include <errno.h>
#include <float.h>
#include <limits.h>
#include <math.h>
#include <samplerate.h>
#include <semaphore.h>
#include <stdalign.h>
#include <stdatomic.h>
#include <string.h>
@@ -303,16 +302,16 @@ typedef struct
LG_Lock deviceLock;
struct
{
sem_t wake;
bool wakeInitialized;
atomic_bool wakePending;
LGThread * thread;
atomic_bool stop;
LGSemaphore * wake;
bool wakeInitialized;
atomic_bool wakePending;
LGThread * thread;
atomic_bool stop;
}
worker;
_Atomic(StreamState) state;
atomic_uint callbackState;
sem_t callbackIdle;
LGSemaphore * callbackIdle;
bool callbackIdleInitialized;
atomic_uint streamGeneration;
uint64_t requestSerial;
@@ -410,13 +409,13 @@ typedef struct
struct
{
LG_Lock lock;
sem_t wake;
bool wakeInitialized;
atomic_bool wakePending;
LGThread * thread;
atomic_bool stop;
bool pending;
LG_Lock lock;
LGSemaphore * wake;
bool wakeInitialized;
atomic_bool wakePending;
LGThread * thread;
atomic_bool stop;
bool pending;
const LG_AudioOps * ops;
void * opaque;
@@ -1087,7 +1086,7 @@ static void playbackCallbackExit(void)
if ((previous & PLAYBACK_CALLBACK_DISABLED) &&
(previous & PLAYBACK_CALLBACK_COUNT_MASK) == 1 &&
audio.playback.callbackIdleInitialized)
sem_post(&audio.playback.callbackIdle);
lgSignalSemaphore(audio.playback.callbackIdle);
}
static void playbackDisableCallbacks(void)
@@ -1103,12 +1102,7 @@ static void playbackWaitForCallbacks(void)
&audio.playback.callbackState, memory_order_acquire) &
PLAYBACK_CALLBACK_COUNT_MASK) != 0)
{
int result;
do
result = sem_wait(&audio.playback.callbackIdle);
while (result < 0 && errno == EINTR);
if (result < 0)
if (!lgWaitSemaphore(audio.playback.callbackIdle))
break;
}
}
@@ -1121,7 +1115,7 @@ static void playbackWorkerWake(void)
&audio.playback.worker.wakePending, true, memory_order_acq_rel))
return;
if (sem_post(&audio.playback.worker.wake) < 0 && errno != EOVERFLOW)
if (!lgSignalSemaphore(audio.playback.worker.wake))
atomic_store_explicit(
&audio.playback.worker.wakePending, false, memory_order_release);
}
@@ -1133,7 +1127,7 @@ static void feedbackWorkerWake(void)
&audio.feedback.wakePending, true, memory_order_acq_rel))
return;
if (sem_post(&audio.feedback.wake) < 0 && errno != EOVERFLOW)
if (!lgSignalSemaphore(audio.feedback.wake))
atomic_store_explicit(
&audio.feedback.wakePending, false, memory_order_release);
}
@@ -4395,11 +4389,7 @@ static int playbackThread(void * opaque)
{
for (;;)
{
int result;
do
result = sem_wait(&audio.playback.worker.wake);
while (result < 0 && errno == EINTR);
if (result < 0)
if (!lgWaitSemaphore(audio.playback.worker.wake))
break;
atomic_store_explicit(
@@ -4453,11 +4443,7 @@ static int feedbackThread(void * opaque)
for (;;)
{
int result;
do
result = sem_wait(&audio.feedback.wake);
while (result < 0 && errno == EINTR);
if (result < 0)
if (!lgWaitSemaphore(audio.feedback.wake))
break;
atomic_store_explicit(
@@ -4577,7 +4563,8 @@ void lgAudio_init(void)
&audio.playback.callbackState, PLAYBACK_CALLBACK_DISABLED,
memory_order_release);
if (sem_init(&audio.playback.callbackIdle, 0, 0) != 0)
audio.playback.callbackIdle = lgCreateSemaphore(0);
if (!audio.playback.callbackIdle)
{
DEBUG_ERROR("Failed to create the audio callback semaphore");
return;
@@ -4591,7 +4578,8 @@ void lgAudio_init(void)
goto err_callback;
}
if (sem_init(&audio.playback.worker.wake, 0, 0) != 0)
audio.playback.worker.wake = lgCreateSemaphore(0);
if (!audio.playback.worker.wake)
{
DEBUG_ERROR("Failed to create the audio playback semaphore");
goto err_active;
@@ -4604,7 +4592,8 @@ void lgAudio_init(void)
goto err_playbackWake;
}
if (sem_init(&audio.feedback.wake, 0, 0) != 0)
audio.feedback.wake = lgCreateSemaphore(0);
if (!audio.feedback.wake)
{
DEBUG_ERROR("Failed to create the audio feedback semaphore");
goto err_playbackThread;
@@ -4648,7 +4637,8 @@ void lgAudio_init(void)
return;
err_feedbackWake:
sem_destroy(&audio.feedback.wake);
lgFreeSemaphore(audio.feedback.wake);
audio.feedback.wake = NULL;
audio.feedback.wakeInitialized = false;
err_playbackThread:
@@ -4659,7 +4649,8 @@ err_playbackThread:
audio.playback.worker.thread = NULL;
err_playbackWake:
sem_destroy(&audio.playback.worker.wake);
lgFreeSemaphore(audio.playback.worker.wake);
audio.playback.worker.wake = NULL;
audio.playback.worker.wakeInitialized = false;
err_active:
@@ -4667,7 +4658,8 @@ err_active:
audio.activeIdle = NULL;
err_callback:
sem_destroy(&audio.playback.callbackIdle);
lgFreeSemaphore(audio.playback.callbackIdle);
audio.playback.callbackIdle = NULL;
audio.playback.callbackIdleInitialized = false;
}
@@ -4696,7 +4688,8 @@ void lgAudio_free(void)
}
if (audio.playback.worker.wakeInitialized)
{
sem_destroy(&audio.playback.worker.wake);
lgFreeSemaphore(audio.playback.worker.wake);
audio.playback.worker.wake = NULL;
audio.playback.worker.wakeInitialized = false;
}
@@ -4710,7 +4703,8 @@ void lgAudio_free(void)
}
if (audio.feedback.wakeInitialized)
{
sem_destroy(&audio.feedback.wake);
lgFreeSemaphore(audio.feedback.wake);
audio.feedback.wake = NULL;
audio.feedback.wakeInitialized = false;
}
@@ -4740,7 +4734,8 @@ void lgAudio_free(void)
if (audio.playback.callbackIdleInitialized)
{
sem_destroy(&audio.playback.callbackIdle);
lgFreeSemaphore(audio.playback.callbackIdle);
audio.playback.callbackIdle = NULL;
audio.playback.callbackIdleInitialized = false;
}
if (audio.activeIdle)