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     7 ** This file is part of the test suite of the Qt Toolkit.

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    41 

    42 

    43 #ifndef QSYSTEMLOCK_P_H

    44 #define QSYSTEMLOCK_P_H

    45 

    46 #ifndef QT_NO_SYSTEMLOCK

    47 

    48 #include "qsystemlock.h"

    49 #include "private/qsharedmemory_p.h"

    50 #ifndef Q_OS_WINCE

    51 #include <sys/types.h>

    52 #endif

    53 

    54 #define MAX_LOCKS 64

    55 

    56 class QSystemLockPrivate

    57 {

    58 

    59 public:

    60     QSystemLockPrivate();

    61 

    62     QString makeKeyFileName()

    63     {

    64         return QSharedMemoryPrivate::makePlatformSafeKey(key, QLatin1String("qipc_systemlock_"));

    65     }

    66 

    67     void setErrorString(const QString &function);

    68 

    69 #ifdef Q_OS_WIN

    70     HANDLE handle();

    71     bool lock(HANDLE, int count);

    72     bool unlock(HANDLE, int count);

    73 #else

    74     key_t handle();

    75 #endif

    76     void cleanHandle();

    77 

    78     enum Operation {

    79         Lock,

    80         Unlock

    81     };

    82     bool modifySemaphore(Operation op, QSystemLock::LockMode mode = QSystemLock::ReadOnly);

    83 

    84     QString key;

    85     QString fileName;

    86 #ifdef Q_OS_WIN

    87     HANDLE semaphore;

    88     HANDLE semaphoreLock;

    89 #else

    90     int semaphore;

    91 #endif

    92     int lockCount;

    93     QSystemLock::LockMode lockedMode;

    94 

    95     QSystemLock::SystemLockError error;

    96     QString errorString;

    97 

    98 private:

    99 #ifndef Q_OS_WIN

   100     key_t unix_key;

   101     bool createdFile;

   102     bool createdSemaphore;

   103 #endif

   104 };

   105 

   106 #endif // QT_NO_SYSTEMLOCK

   107 

   108 #endif // QSYSTEMLOCK_P_H

   109