condimpl.h File Reference

This include file contains the static inline implementation of the private inlined routines for POSIX condition variables. More...

#include <rtems/posix/cond.h>
#include <rtems/score/objectimpl.h>
#include <rtems/score/threadqimpl.h>
#include <rtems/score/watchdog.h>

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Macros
#define	POSIX_CONDITION_VARIABLES_NO_MUTEX   0
	Constant to indicate condition variable does not currently have a mutex assigned to it.

Functions
void	_POSIX_Condition_variables_Manager_initialization (void)
	POSIX Condition Variable Manager Initialization. More...
RTEMS_INLINE_ROUTINE POSIX_Condition_variables_Control *	_POSIX_Condition_variables_Allocate (void)
	POSIX Condition Variable Allocate. More...
RTEMS_INLINE_ROUTINE void	_POSIX_Condition_variables_Free (POSIX_Condition_variables_Control *the_condition_variable)
	POSIX Condition Variable Free. More...
POSIX_Condition_variables_Control *	_POSIX_Condition_variables_Get (pthread_cond_t *cond, Objects_Locations *location)
	POSIX Condition Variable Get. More...
int	_POSIX_Condition_variables_Signal_support (pthread_cond_t *cond, bool is_broadcast)
	Implements wake up version of the "signal" operation. More...
int	_POSIX_Condition_variables_Wait_support (pthread_cond_t *cond, pthread_mutex_t *mutex, Watchdog_Interval timeout, bool already_timedout)
	POSIX condition variables wait support. More...

Variables
POSIX_EXTERN Objects_Information	_POSIX_Condition_variables_Information
	The following defines the information control block used to manage this class of objects.
const pthread_condattr_t	_POSIX_Condition_variables_Default_attributes
	The default condition variable attributes structure.

Detailed Description

This include file contains the static inline implementation of the private inlined routines for POSIX condition variables.

Function Documentation

_POSIX_Condition_variables_Allocate()

RTEMS_INLINE_ROUTINE POSIX_Condition_variables_Control* _POSIX_Condition_variables_Allocate

(

void

)

POSIX Condition Variable Allocate.

This function allocates a condition variable control block from the inactive chain of free condition variable control blocks.

References _Objects_Allocate().

Referenced by pthread_cond_init().

_POSIX_Condition_variables_Free()

RTEMS_INLINE_ROUTINE void _POSIX_Condition_variables_Free

(

POSIX_Condition_variables_Control *

the_condition_variable

)

POSIX Condition Variable Free.

This routine frees a condition variable control block to the inactive chain of free condition variable control blocks.

_POSIX_Condition_variables_Get()

POSIX_Condition_variables_Control* _POSIX_Condition_variables_Get	(	pthread_cond_t *	cond,
		Objects_Locations *	location
	)

POSIX Condition Variable Get.

This function maps condition variable IDs to condition variable control blocks. If ID corresponds to a local condition variable, then it returns the_condition variable control pointer which maps to ID and location is set to OBJECTS_LOCAL. if the condition variable ID is global and resides on a remote node, then location is set to OBJECTS_REMOTE, and the_condition variable is undefined. Otherwise, location is set to OBJECTS_ERROR and the_condition variable is undefined.

Referenced by _POSIX_Condition_variables_Signal_support(), and pthread_cond_destroy().

_POSIX_Condition_variables_Manager_initialization()

void _POSIX_Condition_variables_Manager_initialization

(

void

)

POSIX Condition Variable Manager Initialization.

This routine performs the initialization necessary for this manager.

References _Objects_Initialize_information(), and _POSIX_Condition_variables_Information.

_POSIX_Condition_variables_Signal_support()

int _POSIX_Condition_variables_Signal_support	(	pthread_cond_t *	cond,
		bool	is_broadcast
	)

Implements wake up version of the "signal" operation.

A support routine which implements guts of the broadcast and single task wake up version of the "signal" operation.

References _POSIX_Condition_variables_Get().

Referenced by pthread_cond_broadcast(), and pthread_cond_signal().

_POSIX_Condition_variables_Wait_support()

int _POSIX_Condition_variables_Wait_support	(	pthread_cond_t *	cond,
		pthread_mutex_t *	mutex,
		Watchdog_Interval	timeout,
		bool	already_timedout
	)

POSIX condition variables wait support.

A support routine which implements guts of the blocking, non-blocking, and timed wait version of condition variable wait routines.