PosixMutex Class Reference

Implementation of a mutex class. More...

#include <PosixMutex.hpp>

Public Member Functions
	PosixMutex ()
	Constructor. Initialize the mutex.
	~PosixMutex ()
	Destructor. Destroys the mutex.
void	lock ()
	Acquires the lock.
void	unlock ()
	Releases the lock.
bool	tryLock ()
	Tries to acquire the lock.

Private Member Functions
	PosixMutex (const PosixMutex &)
PosixMutex &	operator= (const PosixMutex &)

Private Attributes
pthread_mutex_t	mutex_

Friends
class	PosixCondition

Detailed Description

Implementation of a mutex class.

The class is non copyable and makes use of the pthread library.

Definition at line 33 of file PosixMutex.hpp.

Constructor & Destructor Documentation

PosixMutex ( const PosixMutex &  )

private

PosixMutex

(

)

Constructor. Initialize the mutex.

Exceptions

runtime_error

if the mutex initialization fails.

Definition at line 34 of file PosixMutex.cpp.

{
        if (pthread_mutex_init(&mutex_, NULL) != 0)
                throw std::runtime_error(std::string("Error: ") + strerror(errno));
}

~PosixMutex

(

)

Destructor. Destroys the mutex.

Definition at line 43 of file PosixMutex.cpp.

{
        VERIFY_ASSERTION(!pthread_mutex_destroy(&mutex_));
}

Member Function Documentation

void lock ( )

inline

Acquires the lock.

If the mutex is busy the calling thread is blocked.

Definition at line 51 of file PosixMutex.hpp.

                    {
                pthread_mutex_lock(&mutex_);
        }

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PosixMutex& operator= ( const PosixMutex &  )

private

bool tryLock

(

)

Tries to acquire the lock.

If the mutex is busy the calling thread continues its executions

Returns

True if the lock is acquired, false otherwise.

Definition at line 55 of file PosixMutex.cpp.

{
        if (pthread_mutex_trylock(&mutex_) == EBUSY)
                return false;
        else
                return true;
}

void unlock ( )

inline

Releases the lock.

Definition at line 58 of file PosixMutex.hpp.

                      {
                pthread_mutex_unlock(&mutex_);
        }

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Friends And Related Function Documentation

friend class PosixCondition

friend

Definition at line 40 of file PosixMutex.hpp.

Member Data Documentation

pthread_mutex_t mutex_

private

Definition at line 38 of file PosixMutex.hpp.

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The documentation for this class was generated from the following files:

• /home/cloud/work/onposix-code/include/PosixMutex.hpp
• /home/cloud/work/onposix-code/src/PosixMutex.cpp