diff options
Diffstat (limited to 'cpp/include/IceUtil/RecMutex.h')
| -rw-r--r-- | cpp/include/IceUtil/RecMutex.h | 224 |
1 files changed, 112 insertions, 112 deletions
diff --git a/cpp/include/IceUtil/RecMutex.h b/cpp/include/IceUtil/RecMutex.h index 8aab8c48a21..eec4dca2796 100644 --- a/cpp/include/IceUtil/RecMutex.h +++ b/cpp/include/IceUtil/RecMutex.h @@ -1,112 +1,112 @@ -// **********************************************************************
-//
-// Copyright (c) 2001
-// Mutable Realms, Inc.
-// Huntsville, AL, USA
-//
-// All Rights Reserved
-//
-// **********************************************************************
-
-#ifndef ICE_UTIL_RMUTEX_H
-#define ICE_UTIL_RMUTEX_H
-
-#include <IceUtil/Config.h>
-#include <IceUtil/Lock.h>
-#include <IceUtil/ThreadException.h>
-
-namespace IceUtil
-{
-
-//
-// Forward declarations for friend.
-//
-class Cond;
-
-//
-// Recursive Mutex implementation.
-//
-class ICE_UTIL_API RecMutex
-{
-public:
-
- //
- // Lock & TryLock typedefs.
- //
- typedef Lock<RecMutex> Lock;
- typedef TryLock<RecMutex> TryLock;
-
- RecMutex();
- ~RecMutex();
-
- //
- // Note that lock/trylock & unlock in general should not be used
- // directly. Instead use Lock & TryLock.
- //
-
- //
- // The boolean values are for the Monitor implementation which
- // needs to know whether the Mutex has been locked for the first
- // time, or unlocked for the last time (that is another thread is
- // able to acquire the mutex).
- //
-
- //
- // Return true if the mutex has been locked for the first time.
- //
- bool lock() const;
-
- //
- // Throw ThreadLockedException in the case that the lock call would
- // block (that is the mutex is already owned by some other
- // thread). Returns true if the mutex has been locked for the
- // first time.
- //
- bool trylock() const;
-
- //
- // Returns true if the mutex has been unlocked for the last time
- // (false otherwise).
- //
- bool unlock() const;
-
-private:
-
- // noncopyable
- RecMutex(const RecMutex&);
- void operator=(const RecMutex&);
-
- //
- // LockState and the lock/unlock variations are for use by the
- // Condition variable implementation.
- //
-#ifdef _WIN32
- struct LockState
- {
- int count;
- };
-#else
- struct LockState
- {
- pthread_mutex_t* mutex;
- int count;
- };
-#endif
-
- void unlock(LockState&) const;
- void lock(LockState&) const;
-
- friend class Cond;
-
-#ifdef _WIN32
- mutable CRITICAL_SECTION _mutex;
-#else
- mutable pthread_mutex_t _mutex;
-#endif
-
- mutable int _count;
-};
-
-} // End namespace IceUtil
-
-#endif
+// ********************************************************************** +// +// Copyright (c) 2001 +// Mutable Realms, Inc. +// Huntsville, AL, USA +// +// All Rights Reserved +// +// ********************************************************************** + +#ifndef ICE_UTIL_RMUTEX_H +#define ICE_UTIL_RMUTEX_H + +#include <IceUtil/Config.h> +#include <IceUtil/Lock.h> +#include <IceUtil/ThreadException.h> + +namespace IceUtil +{ + +// +// Forward declarations for friend. +// +class Cond; + +// +// Recursive Mutex implementation. +// +class ICE_UTIL_API RecMutex +{ +public: + + // + // Lock & TryLock typedefs. + // + typedef Lock<RecMutex> Lock; + typedef TryLock<RecMutex> TryLock; + + RecMutex(); + ~RecMutex(); + + // + // Note that lock/trylock & unlock in general should not be used + // directly. Instead use Lock & TryLock. + // + + // + // The boolean values are for the Monitor implementation which + // needs to know whether the Mutex has been locked for the first + // time, or unlocked for the last time (that is another thread is + // able to acquire the mutex). + // + + // + // Return true if the mutex has been locked for the first time. + // + bool lock() const; + + // + // Throw ThreadLockedException in the case that the lock call would + // block (that is the mutex is already owned by some other + // thread). Returns true if the mutex has been locked for the + // first time. + // + bool trylock() const; + + // + // Returns true if the mutex has been unlocked for the last time + // (false otherwise). + // + bool unlock() const; + +private: + + // noncopyable + RecMutex(const RecMutex&); + void operator=(const RecMutex&); + + // + // LockState and the lock/unlock variations are for use by the + // Condition variable implementation. + // +#ifdef _WIN32 + struct LockState + { + int count; + }; +#else + struct LockState + { + pthread_mutex_t* mutex; + int count; + }; +#endif + + void unlock(LockState&) const; + void lock(LockState&) const; + + friend class Cond; + +#ifdef _WIN32 + mutable CRITICAL_SECTION _mutex; +#else + mutable pthread_mutex_t _mutex; +#endif + + mutable int _count; +}; + +} // End namespace IceUtil + +#endif |