mirror of
https://github.com/gnif/LookingGlass.git
synced 2024-11-10 00:28:20 +00:00
[host] detect header corruption and re-initialize if so
This commit is contained in:
Geoffrey McRae
parent
764e52fb20
commit
9b202d5566
199
host/src/app.c
199
host/src/app.c
@ -67,6 +67,7 @@ enum AppState
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APP_STATE_RUNNING,
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APP_STATE_IDLE,
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APP_STATE_RESTART,
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APP_STATE_REINIT,
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APP_STATE_SHUTDOWN
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};
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@ -140,6 +141,15 @@ static bool lgmpTimer(void * opaque)
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LGMP_STATUS status;
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if ((status = lgmpHostProcess(app.lgmp)) != LGMP_OK)
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{
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// something has messed up the LGMP headers, etc, we need to reinit
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if (status == LGMP_ERR_CORRUPTED)
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{
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DEBUG_ERROR("LGMP reported the shared memory has been corrrupted, "
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"attempting to recover");
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app.state = APP_STATE_REINIT;
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return false;
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}
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DEBUG_ERROR("lgmpHostProcess Failed: %s", lgmpStatusString(status));
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app.state = APP_STATE_SHUTDOWN;
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return false;
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@ -490,6 +500,100 @@ void capturePostPointerBuffer(CapturePointer pointer)
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LG_UNLOCK(app.pointerLock);
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}
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static void lgmpShutdown()
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{
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if (app.lgmpTimer)
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lgTimerDestroy(app.lgmpTimer);
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for(int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
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lgmpHostMemFree(&app.frameMemory[i]);
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for(int i = 0; i < LGMP_Q_POINTER_LEN; ++i)
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lgmpHostMemFree(&app.pointerMemory[i]);
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for(int i = 0; i < POINTER_SHAPE_BUFFERS; ++i)
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lgmpHostMemFree(&app.pointerShapeMemory[i]);
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lgmpHostFree(&app.lgmp);
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}
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static bool lgmpSetup(struct IVSHMEM * shmDev)
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{
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KVMFR udata =
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{
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.magic = KVMFR_MAGIC,
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.version = KVMFR_VERSION,
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.features = os_hasSetCursorPos() ? KVMFR_FEATURE_SETCURSORPOS : 0
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};
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strncpy(udata.hostver, BUILD_VERSION, sizeof(udata.hostver)-1);
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LGMP_STATUS status;
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if ((status = lgmpHostInit(shmDev->mem, shmDev->size, &app.lgmp,
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sizeof(udata), (uint8_t *)&udata)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostInit Failed: %s", lgmpStatusString(status));
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goto fail_init;
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}
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if ((status = lgmpHostQueueNew(app.lgmp, FRAME_QUEUE_CONFIG, &app.frameQueue)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostQueueCreate Failed (Frame): %s", lgmpStatusString(status));
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goto fail_lgmp;
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}
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if ((status = lgmpHostQueueNew(app.lgmp, POINTER_QUEUE_CONFIG, &app.pointerQueue)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostQueueNew Failed (Pointer): %s", lgmpStatusString(status));
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goto fail_lgmp;
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}
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for(int i = 0; i < LGMP_Q_POINTER_LEN; ++i)
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{
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if ((status = lgmpHostMemAlloc(app.lgmp, sizeof(KVMFRCursor), &app.pointerMemory[i])) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer): %s", lgmpStatusString(status));
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goto fail_lgmp;
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}
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memset(lgmpHostMemPtr(app.pointerMemory[i]), 0, sizeof(KVMFRCursor));
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}
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for(int i = 0; i < POINTER_SHAPE_BUFFERS; ++i)
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{
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if ((status = lgmpHostMemAlloc(app.lgmp, MAX_POINTER_SIZE, &app.pointerShapeMemory[i])) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer Shapes): %s", lgmpStatusString(status));
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goto fail_lgmp;
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}
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memset(lgmpHostMemPtr(app.pointerShapeMemory[i]), 0, MAX_POINTER_SIZE);
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}
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app.maxFrameSize = lgmpHostMemAvail(app.lgmp);
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app.maxFrameSize = (app.maxFrameSize - (app.pageSize - 1)) & ~(app.pageSize - 1);
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app.maxFrameSize /= LGMP_Q_FRAME_LEN;
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DEBUG_INFO("Max Frame Size : %u MiB", (unsigned int)(app.maxFrameSize / 1048576LL));
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for(int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
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{
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if ((status = lgmpHostMemAllocAligned(app.lgmp, app.maxFrameSize,
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app.pageSize, &app.frameMemory[i])) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostMemAlloc Failed (Frame): %s", lgmpStatusString(status));
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goto fail_lgmp;
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}
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}
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if (!lgCreateTimer(10, lgmpTimer, NULL, &app.lgmpTimer))
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{
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DEBUG_ERROR("Failed to create the LGMP timer");
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goto fail_lgmp;
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}
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return true;
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fail_lgmp:
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lgmpShutdown();
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fail_init:
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return false;
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}
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// this is called from the platform specific startup routine
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int app_main(int argc, char * argv[])
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{
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@ -563,76 +667,14 @@ int app_main(int argc, char * argv[])
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DEBUG_INFO("Max Pointer Size : %u KiB", (unsigned int)MAX_POINTER_SIZE / 1024);
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DEBUG_INFO("KVMFR Version : %u", KVMFR_VERSION);
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KVMFR udata = {
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.magic = KVMFR_MAGIC,
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.version = KVMFR_VERSION,
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.features = os_hasSetCursorPos() ? KVMFR_FEATURE_SETCURSORPOS : 0
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};
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strncpy(udata.hostver, BUILD_VERSION, sizeof(udata.hostver)-1);
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LGMP_STATUS status;
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if ((status = lgmpHostInit(shmDev.mem, shmDev.size, &app.lgmp,
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sizeof(udata), (uint8_t *)&udata)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostInit Failed: %s", lgmpStatusString(status));
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exitcode = LG_HOST_EXIT_FATAL;
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goto fail_ivshmem;
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}
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if ((status = lgmpHostQueueNew(app.lgmp, FRAME_QUEUE_CONFIG, &app.frameQueue)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostQueueCreate Failed (Frame): %s", lgmpStatusString(status));
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exitcode = LG_HOST_EXIT_FATAL;
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goto fail_lgmp;
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}
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if ((status = lgmpHostQueueNew(app.lgmp, POINTER_QUEUE_CONFIG, &app.pointerQueue)) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostQueueNew Failed (Pointer): %s", lgmpStatusString(status));
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exitcode = LG_HOST_EXIT_FATAL;
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goto fail_lgmp;
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}
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for(int i = 0; i < LGMP_Q_POINTER_LEN; ++i)
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{
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if ((status = lgmpHostMemAlloc(app.lgmp, sizeof(KVMFRCursor), &app.pointerMemory[i])) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer): %s", lgmpStatusString(status));
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exitcode = LG_HOST_EXIT_FATAL;
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goto fail_lgmp;
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}
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memset(lgmpHostMemPtr(app.pointerMemory[i]), 0, sizeof(KVMFRCursor));
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}
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for(int i = 0; i < POINTER_SHAPE_BUFFERS; ++i)
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{
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if ((status = lgmpHostMemAlloc(app.lgmp, MAX_POINTER_SIZE, &app.pointerShapeMemory[i])) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostMemAlloc Failed (Pointer Shapes): %s", lgmpStatusString(status));
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exitcode = LG_HOST_EXIT_FATAL;
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goto fail_lgmp;
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}
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memset(lgmpHostMemPtr(app.pointerShapeMemory[i]), 0, MAX_POINTER_SIZE);
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}
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app.pageSize = sysinfo_getPageSize();
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app.frameValid = false;
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app.pointerShapeValid = false;
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app.maxFrameSize = lgmpHostMemAvail(app.lgmp);
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app.maxFrameSize = (app.maxFrameSize - (app.pageSize - 1)) & ~(app.pageSize - 1);
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app.maxFrameSize /= LGMP_Q_FRAME_LEN;
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DEBUG_INFO("Max Frame Size : %u MiB", (unsigned int)(app.maxFrameSize / 1048576LL));
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for(int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
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if (!lgmpSetup(&shmDev))
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{
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if ((status = lgmpHostMemAllocAligned(app.lgmp, app.maxFrameSize,
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app.pageSize, &app.frameMemory[i])) != LGMP_OK)
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{
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DEBUG_ERROR("lgmpHostMemAlloc Failed (Frame): %s", lgmpStatusString(status));
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exitcode = LG_HOST_EXIT_FATAL;
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goto fail_lgmp;
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}
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goto fail_ivshmem;
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}
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int throttleFps = option_get_int("app", "throttleFPS");
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@ -681,14 +723,6 @@ int app_main(int argc, char * argv[])
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LG_LOCK_INIT(app.pointerLock);
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if (!lgCreateTimer(10, lgmpTimer, NULL, &app.lgmpTimer))
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{
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DEBUG_ERROR("Failed to create the LGMP timer");
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iface->deinit();
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goto fail_timer;
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}
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while(app.state != APP_STATE_SHUTDOWN)
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{
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if(lgmpHostQueueHasSubs(app.pointerQueue) ||
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@ -716,7 +750,7 @@ int app_main(int argc, char * argv[])
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lgmpHostQueueHasSubs(app.pointerQueue) ||
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lgmpHostQueueHasSubs(app.frameQueue)))
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{
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if (app.state == APP_STATE_RESTART)
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if (app.state == APP_STATE_RESTART || app.state == APP_STATE_REINIT)
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{
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if (!stopThreads())
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{
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@ -730,6 +764,13 @@ int app_main(int argc, char * argv[])
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goto fail_capture;
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}
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if (app.state == APP_STATE_REINIT)
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{
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lgmpShutdown();
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if (!lgmpSetup(&shmDev))
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goto fail_lgmp;
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}
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if (!captureStart())
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{
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exitcode = LG_HOST_EXIT_FAILED;
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@ -771,6 +812,7 @@ int app_main(int argc, char * argv[])
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if (!iface->asyncCapture)
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if (app.frameValid && lgmpHostQueueNewSubs(app.frameQueue) > 0)
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{
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LGMP_STATUS status;
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if ((status = lgmpHostQueuePost(app.frameQueue, 0,
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app.frameMemory[app.frameIndex])) != LGMP_OK)
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DEBUG_ERROR("%s", lgmpStatusString(status));
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@ -821,20 +863,11 @@ fail_threads:
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captureStop();
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fail_capture:
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lgTimerDestroy(app.lgmpTimer);
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fail_timer:
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iface->free();
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LG_LOCK_FREE(app.pointerLock);
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fail_lgmp:
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for(int i = 0; i < LGMP_Q_FRAME_LEN; ++i)
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lgmpHostMemFree(&app.frameMemory[i]);
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for(int i = 0; i < LGMP_Q_POINTER_LEN; ++i)
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lgmpHostMemFree(&app.pointerMemory[i]);
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for(int i = 0; i < POINTER_SHAPE_BUFFERS; ++i)
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lgmpHostMemFree(&app.pointerShapeMemory[i]);
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lgmpHostFree(&app.lgmp);
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lgmpShutdown();
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fail_ivshmem:
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ivshmemClose(&shmDev);
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@ -1 +1 @@
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Subproject commit 7af3c0ec5ec1c273d09a2b0838e50362dcb4793b
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Subproject commit 57e059ed6d4a4cfcd6e4de9e282330ba5f7632f4
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