tbb::queuing_rw_mutex Class Reference

Queuing reader-writer mutex with local-only spinning. More...

#include <queuing_rw_mutex.h>

Inheritance diagram for tbb::queuing_rw_mutex:

Collaboration diagram for tbb::queuing_rw_mutex:

Classes
class	scoped_lock
	The scoped locking pattern. More...

Public Member Functions
	queuing_rw_mutex ()
	Construct unacquired mutex. More...
	~queuing_rw_mutex ()
	Destructor asserts if the mutex is acquired, i.e. q_tail is non-NULL. More...
void __TBB_EXPORTED_METHOD	internal_construct ()

Static Public Attributes
static const bool	is_rw_mutex = true
static const bool	is_recursive_mutex = false
static const bool	is_fair_mutex = true

Private Attributes
atomic< scoped_lock * >	q_tail
	The last competitor requesting the lock. More...

Detailed Description

Queuing reader-writer mutex with local-only spinning.

Adapted from Krieger, Stumm, et al. pseudocode at http://www.eecg.toronto.edu/parallel/pubs_abs.html#Krieger_etal_ICPP93

Definition at line 33 of file queuing_rw_mutex.h.

Constructor & Destructor Documentation

queuing_rw_mutex()

tbb::queuing_rw_mutex::queuing_rw_mutex ( )

inline

Construct unacquired mutex.

Definition at line 36 of file queuing_rw_mutex.h.

                       {
        q_tail = NULL;
#if TBB_USE_THREADING_TOOLS
        internal_construct();
#endif
    }

References internal_construct(), and q_tail.

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~queuing_rw_mutex()

tbb::queuing_rw_mutex::~queuing_rw_mutex ( )

inline

Destructor asserts if the mutex is acquired, i.e. q_tail is non-NULL.

Definition at line 44 of file queuing_rw_mutex.h.

                        {
#if TBB_USE_ASSERT
        __TBB_ASSERT( !q_tail, "destruction of an acquired mutex");
#endif
    }

References __TBB_ASSERT, and q_tail.

Member Function Documentation

internal_construct()

void tbb::queuing_rw_mutex::internal_construct

(

)

Definition at line 484 of file queuing_rw_mutex.cpp.

                                          {
    ITT_SYNC_CREATE(this, _T("tbb::queuing_rw_mutex"), _T(""));
}

References _T, and ITT_SYNC_CREATE.

Referenced by queuing_rw_mutex().

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Member Data Documentation

is_fair_mutex

const bool tbb::queuing_rw_mutex::is_fair_mutex = true

static

Definition at line 139 of file queuing_rw_mutex.h.

is_recursive_mutex

const bool tbb::queuing_rw_mutex::is_recursive_mutex = false

static

Definition at line 138 of file queuing_rw_mutex.h.

is_rw_mutex

const bool tbb::queuing_rw_mutex::is_rw_mutex = true

static

Definition at line 137 of file queuing_rw_mutex.h.

q_tail

atomic<scoped_lock*> tbb::queuing_rw_mutex::q_tail

private

The last competitor requesting the lock.

Definition at line 143 of file queuing_rw_mutex.h.

Referenced by tbb::queuing_rw_mutex::scoped_lock::acquire(), queuing_rw_mutex(), tbb::queuing_rw_mutex::scoped_lock::try_acquire(), and ~queuing_rw_mutex().

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

• queuing_rw_mutex.h
• queuing_rw_mutex.cpp