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[c-host] app: reinit on failure to capture a frame

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A failed to capture a frame should not be considered fatal as it may be due to a driver issue or bug, instead try to reinitialize first
This commit is contained in:
Geoffrey McRae 2019-03-04 13:06:30 +11:00
parent f79a1b2533
commit 6e35033f2e
1 changed files with 38 additions and 19 deletions
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57
c-host/app.c
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@ -48,6 +48,7 @@ struct app
unsigned int frameOffset[MAX_FRAMES];
bool running;
bool reinit;
osEventHandle * updateEvent;
osThreadHandle * pointerThread;
osEventHandle * pointerEvent;
@ -94,12 +95,19 @@ static int frameThread(void * opaque)
CaptureFrame frame;
frame.data = app.frame[frameIndex];
if (!app.iface->getFrame(&frame))
{
DEBUG_ERROR("Failed to get the frame");
app.reinit = true;
os_signalEvent(app.updateEvent);
break;
}
os_signalEvent(app.updateEvent);
// wait for the client to finish with the previous frame
while(fi->flags & KVMFR_FRAME_FLAG_UPDATE)
{
DEBUG_WARN("Waiting for the client");
// this generally never happens
usleep(1000);
}
@ -185,10 +193,31 @@ static bool captureStart()
}
DEBUG_INFO("Capture Size : %u MiB (%u)", maxFrameSize / 1048576, maxFrameSize);
// start signalled
os_signalEvent(app.updateEvent);
DEBUG_INFO("==== [ Capture Start ] ====");
return startThreads();
}
static bool captureRestart()
{
DEBUG_INFO("==== [ Capture Restart ] ====");
if (!stopThreads())
return false;
if (!app.iface->deinit() || !app.iface->init())
{
DEBUG_ERROR("Failed to reinitialize the capture device");
return false;
}
if (!captureStart())
return false;
return true;
}
int app_main()
{
unsigned int shmemSize = os_shmemSize();
@ -300,6 +329,13 @@ int app_main()
if (!os_waitEvent(app.updateEvent) || !app.running)
break;
if (app.reinit && !captureRestart())
{
exitcode = -1;
goto exit;
}
app.reinit = false;
bool frameUpdate = false;
bool pointerUpdate = false;
@ -313,28 +349,11 @@ retry_capture:
continue;
case CAPTURE_RESULT_REINIT:
DEBUG_INFO("==== [ Capture Reinit ] ====");
if (!stopThreads())
if (!captureRestart())
{
exitcode = -1;
goto finish;
goto exit;
}
if (!iface->deinit() || !iface->init())
{
DEBUG_ERROR("Failed to reinitialize the capture device");
exitcode = -1;
goto finish;
}
if (!captureStart())
{
exitcode = -1;
goto finish;
}
// start signalled
os_signalEvent(app.updateEvent);
continue;
case CAPTURE_RESULT_ERROR: