| #include <windows.h>
|
|
|
| #include "memory.h"
|
| #include "queue.h"
|
|
|
| static HANDLE space_avail;
|
| static HANDLE data_avail;
|
| static CRITICAL_SECTION mutex;
|
|
|
| static INT queueSize = 0;
|
|
|
| static LPWSTR* buffer = 0;
|
| static long in_pos = 0, out_pos = 0;
|
|
|
| void _que_initialize(INT size) {
|
| queueSize = size;
|
| buffer = (WCHAR**)_halloc(size * sizeof(WCHAR*));
|
|
|
| space_avail = CreateSemaphoreA(NULL, queueSize, queueSize, NULL);
|
| data_avail = CreateSemaphoreA(NULL, 0, queueSize, NULL);
|
| InitializeCriticalSection(&mutex);
|
| }
|
|
|
| void _que_push(LPWSTR data) {
|
| WCHAR* data_newmem = 0;
|
| if (data)
|
| {
|
| data_newmem = (WCHAR*)_halloc(sizeof(WCHAR*) * (lstrlenW(data) + 1));
|
| lstrcpyW(data_newmem, data);
|
| }
|
|
|
| WaitForSingleObject(space_avail, INFINITE);
|
| EnterCriticalSection(&mutex);
|
| buffer[in_pos] = data_newmem;
|
| in_pos = (in_pos + 1) % queueSize;
|
| LeaveCriticalSection(&mutex);
|
| ReleaseSemaphore(data_avail, 1, NULL);
|
| }
|
|
|
| LPWSTR _que_pop() {
|
| WaitForSingleObject(data_avail, INFINITE);
|
| EnterCriticalSection(&mutex);
|
| LPWSTR retval = buffer[out_pos];
|
| out_pos = (out_pos + 1) % queueSize;
|
| LeaveCriticalSection(&mutex);
|
| ReleaseSemaphore(space_avail, 1, NULL);
|
| return retval;
|
| } |
