tbb::internal::binary_semaphore Class Reference

binary_semaphore for concurrent monitor More...

#include <semaphore.h>

Inheritance diagram for tbb::internal::binary_semaphore:

Collaboration diagram for tbb::internal::binary_semaphore:

Public Member Functions
	binary_semaphore ()
	ctor More...
	~binary_semaphore ()
	dtor More...
void	P ()
	wait/acquire More...
void	V ()
	post/release More...

Private Attributes
sem_t	my_sem

Additional Inherited Members
Private Member Functions inherited from tbb::internal::no_copy
	no_copy (const no_copy &)=delete
	no_copy ()=default

Detailed Description

binary_semaphore for concurrent monitor

Definition at line 222 of file semaphore.h.

Constructor & Destructor Documentation

binary_semaphore()

tbb::internal::binary_semaphore::binary_semaphore ( )

inline

ctor

Definition at line 225 of file semaphore.h.

                       {
        int ret = sem_init( &my_sem, /*shared among threads*/ 0, 0 );
        __TBB_ASSERT_EX( !ret, NULL );
    }

References __TBB_ASSERT_EX, and my_sem.

~binary_semaphore()

tbb::internal::binary_semaphore::~binary_semaphore ( )

inline

dtor

Definition at line 230 of file semaphore.h.

                        {
        int ret = sem_destroy( &my_sem );
        __TBB_ASSERT_EX( !ret, NULL );
    }

References __TBB_ASSERT_EX, and my_sem.

Referenced by tbb::internal::concurrent_monitor::thread_context::~thread_context().

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Member Function Documentation

P()

void tbb::internal::binary_semaphore::P ( )

inline

wait/acquire

Definition at line 235 of file semaphore.h.

             {
        while( sem_wait( &my_sem )!=0 )
            __TBB_ASSERT( errno==EINTR, NULL );
    }

References __TBB_ASSERT, and my_sem.

Referenced by tbb::internal::concurrent_monitor::commit_wait(), tbb::internal::concurrent_monitor::prepare_wait(), and tbb::internal::concurrent_monitor::thread_context::~thread_context().

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V()

void tbb::internal::binary_semaphore::V ( )

inline

post/release

Definition at line 240 of file semaphore.h.

{ sem_post( &my_sem ); }

References my_sem.

Referenced by tbb::internal::concurrent_monitor::abort_all_relaxed(), tbb::internal::concurrent_monitor::notify_all_relaxed(), tbb::internal::concurrent_monitor::notify_one_relaxed(), and tbb::internal::concurrent_monitor::notify_relaxed().

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Member Data Documentation

my_sem

sem_t tbb::internal::binary_semaphore::my_sem

private

Definition at line 242 of file semaphore.h.

Referenced by binary_semaphore(), P(), V(), and ~binary_semaphore().

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

• semaphore.h