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Use atomic variables for ConnectionInterrupted and LBQ currentSize #100

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Use atomic variables for ConnectionInterrupted and LBQ currentSize #100

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4 changes: 3 additions & 1 deletion src/Connection.c
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Original file line number Diff line number Diff line change
@@ -1,5 +1,7 @@
#include "Limelight-internal.h"

#include <stdatomic.h>

static int stage = STAGE_NONE;
static ConnListenerConnectionTerminated originalTerminationCallback;
static bool alreadyTerminated;
Expand All @@ -17,7 +19,7 @@ CONNECTION_LISTENER_CALLBACKS ListenerCallbacks;
DECODER_RENDERER_CALLBACKS VideoCallbacks;
AUDIO_RENDERER_CALLBACKS AudioCallbacks;
int NegotiatedVideoFormat;
volatile bool ConnectionInterrupted;
volatile atomic_bool ConnectionInterrupted = ATOMIC_VAR_INIT(false);
bool HighQualitySurroundSupported;
bool HighQualitySurroundEnabled;
OPUS_MULTISTREAM_CONFIGURATION NormalQualityOpusConfig;
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2 changes: 1 addition & 1 deletion src/Limelight-internal.h
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Expand Up @@ -24,7 +24,7 @@ extern CONNECTION_LISTENER_CALLBACKS ListenerCallbacks;
extern DECODER_RENDERER_CALLBACKS VideoCallbacks;
extern AUDIO_RENDERER_CALLBACKS AudioCallbacks;
extern int NegotiatedVideoFormat;
extern volatile bool ConnectionInterrupted;
extern volatile atomic_bool ConnectionInterrupted;
extern bool HighQualitySurroundSupported;
extern bool HighQualitySurroundEnabled;
extern OPUS_MULTISTREAM_CONFIGURATION NormalQualityOpusConfig;
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6 changes: 3 additions & 3 deletions src/LinkedBlockingQueue.c
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Expand Up @@ -116,7 +116,7 @@ int LbqOfferQueueItem(PLINKED_BLOCKING_QUEUE queueHead, void* data, PLINKED_BLOC
queueHead->tail = entry;
}

queueHead->currentSize++;
atomic_fetch_add(&queueHead->currentSize, 1);
queueHead->lifetimeSize++;

PltUnlockMutex(&queueHead->mutex);
Expand Down Expand Up @@ -180,7 +180,7 @@ int LbqPollQueueElement(PLINKED_BLOCKING_QUEUE queueHead, void** data) {

entry = queueHead->head;
queueHead->head = entry->flink;
queueHead->currentSize--;
atomic_fetch_add(&queueHead->currentSize, -1);
if (queueHead->head == NULL) {
LC_ASSERT(queueHead->currentSize == 0);
queueHead->tail = NULL;
Expand Down Expand Up @@ -231,7 +231,7 @@ int LbqWaitForQueueElement(PLINKED_BLOCKING_QUEUE queueHead, void** data) {

entry = queueHead->head;
queueHead->head = entry->flink;
queueHead->currentSize--;
atomic_fetch_add(&queueHead->currentSize, -1);
if (queueHead->head == NULL) {
LC_ASSERT(queueHead->currentSize == 0);
queueHead->tail = NULL;
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4 changes: 3 additions & 1 deletion src/LinkedBlockingQueue.h
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,8 @@
#include "Platform.h"
#include "PlatformThreads.h"

#include <stdatomic.h>

#define LBQ_SUCCESS 0
#define LBQ_INTERRUPTED 1
#define LBQ_BOUND_EXCEEDED 2
Expand All @@ -21,7 +23,7 @@ typedef struct _LINKED_BLOCKING_QUEUE {
PLINKED_BLOCKING_QUEUE_ENTRY head;
PLINKED_BLOCKING_QUEUE_ENTRY tail;
int sizeBound;
int currentSize;
atomic_int currentSize;
int lifetimeSize;
bool shutdown;
bool draining;
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