moonlight-stream/moonlight-common-c
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Use SO_RCVTIMEO to avoid the overhead of an extra syscall per packet

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This commit is contained in:
Cameron Gutman
2018-07-16 00:42:55 -07:00
parent a9438d1f5e
commit 6e7965f013
5 changed files with 71 additions and 21 deletions
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12
src/AudioStream.c
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@@ -151,9 +151,19 @@ static void ReceiveThreadProc(void* context) {
PRTP_PACKET rtp;
PQUEUED_AUDIO_PACKET packet;
int queueStatus;
int useSelect;
packet = NULL;
if (setNonFatalRecvTimeoutMs(rtpSocket, UDP_RECV_POLL_TIMEOUT_MS) < 0) {
// SO_RCVTIMEO failed, so use select() to wait
useSelect = 1;
}
else {
// SO_RCVTIMEO timeout set for recv()
useSelect = 0;
}
while (!PltIsThreadInterrupted(&receiveThread)) {
if (packet == NULL) {
packet = (PQUEUED_AUDIO_PACKET)malloc(sizeof(*packet));
@@ -164,7 +174,7 @@ static void ReceiveThreadProc(void* context) {
}
}
packet->size = recvUdpSocket(rtpSocket, &packet->data[0], MAX_PACKET_SIZE);
packet->size = recvUdpSocket(rtpSocket, &packet->data[0], MAX_PACKET_SIZE, useSelect);
if (packet->size < 0) {
Limelog("Audio Receive: recvUdpSocket() failed: %d\n", (int)LastSocketError());
ListenerCallbacks.connectionTerminated(LastSocketError());