C++ (Cpp) LcmLeaveSplSem示例

示例#1

文件： irda.c 项目： Realhram/wdk81

VOID
CheckAndAddIrdaPort(
    _In_ PINILOCALMON    pIniLocalMon
    )
{
    PLCMINIPORT    pIniPort = NULL;


    LcmEnterSplSem();

    for ( pIniPort = pIniLocalMon->pIniPort ;
          pIniPort && !IS_IRDA_PORT(pIniPort->pName) ;
          pIniPort = pIniPort->pNext )
    ;

    LcmLeaveSplSem();

    if ( pIniPort || !IsIRDAInstalled() )
        return;

    //
    // Add the port to the list and write to registry
    //
    LcmCreatePortEntry(pIniLocalMon, szIRDA);
}

示例#2

文件： config.c 项目： kcrazy/winekit

__user_driver

PLCMINIPORT
LcmCreatePortEntry(
    __inout PINILOCALMON pIniLocalMon,
    __in    PWSTR pPortName
    )
{
    DWORD       cb          = 0;
    PLCMINIPORT pIniPort    = NULL;
    PLCMINIPORT pPort       = NULL;
    size_t      cchPortName = wcslen (pPortName) + 1;


    if (!pPortName || wcslen(pPortName) > 247)
    {
        SetLastError(ERROR_INVALID_NAME);
        return NULL;
    }

    cb = (DWORD) (sizeof(LCMINIPORT) + cchPortName * sizeof (WCHAR));

    pIniPort = (PLCMINIPORT)AllocSplMem(cb);

    if( pIniPort )
    {
        ZeroMemory(pIniPort, cb);

        pIniPort->pName = (LPWSTR)(pIniPort+1);
        (VOID) StringCchCopy (pIniPort->pName, cchPortName, pPortName);
        pIniPort->cb = cb;
        pIniPort->cRef = 0;
        pIniPort->pNext = 0;
        pIniPort->pIniLocalMon = pIniLocalMon;
        pIniPort->signature = IPO_SIGNATURE;


        pIniPort->hFile = INVALID_HANDLE_VALUE;

        LcmEnterSplSem();

        pPort = pIniLocalMon->pIniPort;
        if (pPort) {

            while (pPort->pNext)
                pPort = pPort->pNext;

            pPort->pNext = pIniPort;

        } else
            pIniLocalMon->pIniPort = pIniPort;

        LcmLeaveSplSem();
    }

    return pIniPort;
}