94 lines
3 KiB
C++
94 lines
3 KiB
C++
#include "svcsync.h"
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#include "dbg.h"
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#include "tfids.h"
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extern HANDLE g_hShellHWDetectionThread = NULL;
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extern const WCHAR g_szShellHWDetectionInitCompleted[] =
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TEXT("ShellHWDetectionInitCompleted");
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HRESULT _CompleteShellHWDetectionInitialization()
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{
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static BOOL fCompleted = FALSE;
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if (!fCompleted)
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{
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HANDLE hEvent = CreateEvent(NULL, TRUE, FALSE,
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g_szShellHWDetectionInitCompleted);
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TRACE(TF_SVCSYNC,
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TEXT("ShellHWDetection Initialization NOT completed yet"));
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if (hEvent)
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{
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DWORD dwWait = WaitForSingleObject(hEvent, 0);
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if (WAIT_OBJECT_0 == dwWait)
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{
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// It's signaled!
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fCompleted = TRUE;
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TRACE(TF_SVCSYNC,
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TEXT("ShellHWDetectionInitCompleted event was already signaled!"));
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}
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else
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{
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// Not signaled
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TRACE(TF_SVCSYNC,
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TEXT("ShellHWDetectionInitCompleted event was NOT already signaled!"));
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// Just in case race condition of 2 threads in this fct
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HANDLE hTmp = InterlockedCompareExchangePointer(
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&g_hShellHWDetectionThread, NULL,
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g_hShellHWDetectionThread);
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if (hTmp)
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{
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if (!SetThreadPriority(hTmp, THREAD_PRIORITY_NORMAL))
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{
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TRACE(TF_SVCSYNC,
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TEXT("FAILED to set ShellHWDetection thread priority to NORMAL from ShellCOMServer"));
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}
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else
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{
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TRACE(TF_SVCSYNC,
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TEXT("Set ShellHWDetection thread priority to NORMAL from ShellCOMServer"));
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}
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}
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Sleep(0);
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dwWait = WaitForSingleObject(hEvent, 30000);
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if (hTmp)
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{
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// No code should need this handle anymore. If it's
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// signaled it was signaled by the other thread, and will
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// not be used over there anymore.
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CloseHandle(hTmp);
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}
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if (WAIT_OBJECT_0 == dwWait)
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{
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// It's signaled!
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fCompleted = TRUE;
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TRACE(TF_SVCSYNC,
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TEXT("ShellHWDetection Initialization COMPLETED"));
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}
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else
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{
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// Out of luck, the ShellHWDetection service cannot
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// complete its initialization...
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TRACE(TF_SVCSYNC,
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TEXT("ShellHWDetection Initialization lasted more than 30 sec: FAILED, dwWait = 0x%08X"),
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dwWait);
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}
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}
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CloseHandle(hEvent);
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}
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}
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return (fCompleted ? S_OK : E_FAIL);
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} |