PthreadMutex Class Reference

#include <PthreadMutex.h>

Inheritance diagram for PthreadMutex:

Collaboration diagram for PthreadMutex:

Public Member Functions
	PthreadMutex (void)
	PthreadMutex (const PthreadMutexAttr &attr)
	~PthreadMutex (void)
	operator pthread_mutex_t * ()
	operator const pthread_mutex_t * () const
PthreadMutex &	Lock (void)
PthreadMutex &	Unlock (void)
PthreadMutex &	Take (void)
PthreadMutex &	Give (void)
bool	Poll (void)
int	Error (void)
void	Clear (void)

Protected Member Functions
void	TrapError (int result)

Protected Attributes
int	error

Private Attributes
pthread_mutex_t	theMutex

Detailed Description

Definition at line 40 of file PthreadMutex.h.

Constructor & Destructor Documentation

PthreadMutex::PthreadMutex

(

void

)

Definition at line 33 of file PthreadMutex.cc.

References theMutex, and PthreadErrorHandler::TrapError().

{
    TrapError(pthread_mutex_init(&theMutex, 0));
}

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PthreadMutex::PthreadMutex

(

const PthreadMutexAttr &

attr

)

Definition at line 42 of file PthreadMutex.cc.

References theMutex, and PthreadErrorHandler::TrapError().

{   
    //  It should simply be:
//  TrapError(pthread_mutex_init(&theMutex, mAttr));

    //  This is necessary because
    //      SGI's pthread_mutex_init is not const correct!!!

    pthread_mutexattr_t* myAttr = (PthreadMutexAttr&)mAttr;
    TrapError(pthread_mutex_init(&theMutex, myAttr));
}

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PthreadMutex::~PthreadMutex

(

void

)

Definition at line 57 of file PthreadMutex.cc.

References theMutex, and PthreadErrorHandler::TrapError().

{
    try {
        TrapError(pthread_mutex_destroy(&theMutex));
    } catch (...) {
        std::terminate();
    }
}

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Member Function Documentation

void PthreadErrorHandler::Clear ( void  )

inlineinherited

Definition at line 40 of file PthreadErrorHandler.h.

References PthreadErrorHandler::error.

{ error = 0; }

int PthreadErrorHandler::Error ( void  )

inlineinherited

Definition at line 39 of file PthreadErrorHandler.h.

References PthreadErrorHandler::error.

{ return error; }

PthreadMutex& PthreadMutex::Give ( void  )

inline

Definition at line 52 of file PthreadMutex.h.

References Unlock().

Referenced by PthreadMutexProtected::~PthreadMutexProtected().

{ return Unlock(); }

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PthreadMutex& PthreadMutex::Lock ( void  )

inline

Definition at line 49 of file PthreadMutex.h.

References theMutex, and PthreadErrorHandler::TrapError().

Referenced by CPN::QueueBase::Lock(), and Take().

{ TrapError(pthread_mutex_lock(&theMutex)); return *this; }

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PthreadMutex::operator const pthread_mutex_t * ( ) const

inline

Definition at line 47 of file PthreadMutex.h.

References theMutex.

{ return &theMutex; }

PthreadMutex::operator pthread_mutex_t * ( )

inline

Definition at line 46 of file PthreadMutex.h.

References theMutex.

{ return &theMutex; }

bool PthreadMutex::Poll

(

void

)

Definition at line 69 of file PthreadMutex.cc.

References theMutex, and PthreadErrorHandler::TrapError().

{   int err = pthread_mutex_trylock(&theMutex);
    if(err == EBUSY)
        return false;
    TrapError(err);
    return true;
}

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PthreadMutex& PthreadMutex::Take ( void  )

inline

Definition at line 51 of file PthreadMutex.h.

References Lock().

Referenced by PthreadMutexProtected::PthreadMutexProtected().

{ return Lock(); }

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void PthreadErrorHandler::TrapError ( int  result )

inlineprotectedinherited

Definition at line 48 of file PthreadErrorHandler.h.

References PthreadErrorHandler::error.

Referenced by PthreadCondition::Broadcast(), PthreadAttr::DetachState(), PthreadBase::Join(), Pthread::Join(), Lock(), Poll(), Pthread::Pthread(), PthreadAttr::PthreadAttr(), PthreadBase::PthreadBase(), PthreadCondition::PthreadCondition(), PthreadConditionAttr::PthreadConditionAttr(), PthreadKey< T >::PthreadKey(), PthreadMutex(), PthreadMutexAttr::PthreadMutexAttr(), PthreadReadWriteLock::ReadUnlock(), PthreadAttr::ScheduleScope(), PthreadKey< T >::Set(), PthreadCondition::Signal(), PthreadCondition::TimedWait(), Unlock(), PthreadCondition::Wait(), PthreadReadWriteLock::WriteUnlock(), PthreadAttr::~PthreadAttr(), PthreadCondition::~PthreadCondition(), PthreadConditionAttr::~PthreadConditionAttr(), PthreadKey< T >::~PthreadKey(), ~PthreadMutex(), and PthreadMutexAttr::~PthreadMutexAttr().

{
    if (err) {
        error = err;
        throw ErrnoException(err);
    }
}

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PthreadMutex& PthreadMutex::Unlock ( void  )

inline

Definition at line 50 of file PthreadMutex.h.

References theMutex, and PthreadErrorHandler::TrapError().

Referenced by Give(), and CPN::QueueBase::Unlock().

{ TrapError(pthread_mutex_unlock(&theMutex)); return *this; }

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Member Data Documentation

int PthreadErrorHandler::error

protectedinherited

Definition at line 43 of file PthreadErrorHandler.h.

Referenced by PthreadErrorHandler::Clear(), PthreadErrorHandler::Error(), PthreadErrorHandler::PthreadErrorHandler(), and PthreadErrorHandler::TrapError().

pthread_mutex_t PthreadMutex::theMutex

private

Definition at line 57 of file PthreadMutex.h.

Referenced by Lock(), operator const pthread_mutex_t *(), operator pthread_mutex_t *(), Poll(), PthreadMutex(), Unlock(), and ~PthreadMutex().

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

• include/cpn/threading/PthreadMutex.h
• lib/threading/PthreadMutex.cc