78 } g_hieventDev;  variable
82     if (g_hieventDev.headOffset > HIEVENT_LOG_BUFFER) {  in HieventBufferHead()
83         g_hieventDev.headOffset = g_hieventDev.headOffset % HIEVENT_LOG_BUFFER;  in HieventBufferHead()
85     return g_hieventDev.buffer + g_hieventDev.headOffset;  in HieventBufferHead()
102     if (g_hieventDev.size + sz <= HIEVENT_LOG_BUFFER) {  in HieventBufferInc()
103         g_hieventDev.size += sz;  in HieventBufferInc()
104         g_hieventDev.writeOffset += sz;  in HieventBufferInc()
105         g_hieventDev.writeOffset %= HIEVENT_LOG_BUFFER;  in HieventBufferInc()
106         g_hieventDev.count++;  in HieventBufferInc()
112     if (g_hieventDev.size >= sz) {  in HieventBufferDec()
113         g_hieventDev.size -= sz;  in HieventBufferDec()
114         g_hieventDev.headOffset += sz;  in HieventBufferDec()
115         g_hieventDev.headOffset %= HIEVENT_LOG_BUFFER;  in HieventBufferDec()
116         g_hieventDev.count--;  in HieventBufferDec()
145     size_t bufLeft = HIEVENT_LOG_BUFFER - g_hieventDev.headOffset;  in HieventReadRingBuffer()
155                                    g_hieventDev.buffer, bufLen - bufLeft);  in HieventReadRingBuffer()
167     wait_event_interruptible(g_hieventDev.wq, (g_hieventDev.size > 0));  in HieventRead()
169     (VOID)LOS_MuxAcquire(&g_hieventDev.mtx);  in HieventRead()
205         g_hieventDev.writeOffset = 0;  in HieventRead()
206         g_hieventDev.headOffset = 0;  in HieventRead()
207         g_hieventDev.size = 0;  in HieventRead()
208         g_hieventDev.count = 0;  in HieventRead()
210     (VOID)LOS_MuxRelease(&g_hieventDev.mtx);  in HieventRead()
217     size_t bufLeft = HIEVENT_LOG_BUFFER - g_hieventDev.writeOffset;  in HieventWriteRingBuffer()
219         retval = HieventBufferCopy(g_hieventDev.buffer + g_hieventDev.writeOffset,  in HieventWriteRingBuffer()
224         retval = HieventBufferCopy(g_hieventDev.buffer, HIEVENT_LOG_BUFFER,  in HieventWriteRingBuffer()
227         retval = HieventBufferCopy(g_hieventDev.buffer + g_hieventDev.writeOffset,  in HieventWriteRingBuffer()
256     while (totalSize + g_hieventDev.size > HIEVENT_LOG_BUFFER) {  in HieventCoverOldLog()
278     (VOID)LOS_MuxAcquire(&g_hieventDev.mtx);  in HieventWriteInternal()
316     (VOID)LOS_MuxRelease(&g_hieventDev.mtx);  in HieventWriteInternal()
318         wake_up_interruptible(&g_hieventDev.wq);  in HieventWriteInternal()
334     wait_event_interruptible(g_hieventDev.wq, (g_hieventDev.size > 0));  in HieventPoll()
361     g_hieventDev.buffer = LOS_MemAlloc((VOID *)OS_SYS_MEM_ADDR,  in HieventDeviceInit()
363     if (g_hieventDev.buffer == NULL) {  in HieventDeviceInit()
367     init_waitqueue_head(&g_hieventDev.wq);  in HieventDeviceInit()
368     (void)LOS_MuxInit(&g_hieventDev.mtx, NULL);  in HieventDeviceInit()
370     g_hieventDev.writeOffset = 0;  in HieventDeviceInit()
371     g_hieventDev.headOffset = 0;  in HieventDeviceInit()
372     g_hieventDev.size = 0;  in HieventDeviceInit()
373     g_hieventDev.count = 0;  in HieventDeviceInit()
385                     DRIVER_MODE, &g_hieventDev);  in HieventInit()