condimpl.h File Reference

#include <errno.h>
#include <pthread.h>
#include <rtems/score/percpu.h>
#include <rtems/score/threadqimpl.h>

Go to the source code of this file.

Data Structures
struct	POSIX_Condition_variables_Control

Macros
#define	POSIX_CONDITION_VARIABLES_CLOCK_MONOTONIC   0x1UL
#define	POSIX_CONDITION_VARIABLES_FLAGS_MASK   0x1UL
#define	POSIX_CONDITION_VARIABLES_MAGIC   0x18dfb1feUL
#define	POSIX_CONDITION_VARIABLES_NO_MUTEX   NULL
#define	POSIX_CONDITION_VARIABLES_TQ_OPERATIONS   &_Thread_queue_Operations_FIFO
#define	POSIX_CONDITION_VARIABLE_OF_THREAD_QUEUE_QUEUE(queue)
#define	POSIX_CONDITION_VARIABLES_VALIDATE_OBJECT(the_cond, flags)

Functions
RTEMS_INLINE_ROUTINE void	_POSIX_Condition_variables_Initialize (POSIX_Condition_variables_Control *the_cond, const pthread_condattr_t *the_attr)
RTEMS_INLINE_ROUTINE void	_POSIX_Condition_variables_Destroy (POSIX_Condition_variables_Control *the_cond)
RTEMS_INLINE_ROUTINE clockid_t	_POSIX_Condition_variables_Get_clock (unsigned long flags)
RTEMS_INLINE_ROUTINE Thread_Control *	_POSIX_Condition_variables_Acquire (POSIX_Condition_variables_Control *the_cond, Thread_queue_Context *queue_context)
RTEMS_INLINE_ROUTINE void	_POSIX_Condition_variables_Release (POSIX_Condition_variables_Control *the_cond, Thread_queue_Context *queue_context)
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, const struct timespec *abstime)
	POSIX condition variables wait support. More...
bool	_POSIX_Condition_variables_Auto_initialization (POSIX_Condition_variables_Control *the_cond)

Variables
const pthread_condattr_t	_POSIX_Condition_variables_Default_attributes

Detailed Description

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

Macro Definition Documentation

POSIX_CONDITION_VARIABLE_OF_THREAD_QUEUE_QUEUE

#define POSIX_CONDITION_VARIABLE_OF_THREAD_QUEUE_QUEUE

(

queue

)

Value:

RTEMS_CONTAINER_OF( \
    queue, POSIX_Condition_variables_Control, Queue.Queue )

POSIX_CONDITION_VARIABLES_NO_MUTEX

#define POSIX_CONDITION_VARIABLES_NO_MUTEX   NULL

Constant to indicate condition variable does not currently have a mutex assigned to it.

POSIX_CONDITION_VARIABLES_VALIDATE_OBJECT

#define POSIX_CONDITION_VARIABLES_VALIDATE_OBJECT	(		the_cond,
			flags
	)

Value:

do { \
    if ( ( the_cond ) == NULL ) { \
      return EINVAL; \
    } \
    flags = ( the_cond )->flags; \
    if ( \
      ( ( (uintptr_t) ( the_cond ) ^ POSIX_CONDITION_VARIABLES_MAGIC ) \
          & ~POSIX_CONDITION_VARIABLES_FLAGS_MASK ) \
        != ( flags & ~POSIX_CONDITION_VARIABLES_FLAGS_MASK ) \
    ) { \
      if ( !_POSIX_Condition_variables_Auto_initialization( the_cond ) ) { \
        return EINVAL; \
      } \
    } \
  } while ( 0 )

Function Documentation

_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.

_POSIX_Condition_variables_Wait_support()

int _POSIX_Condition_variables_Wait_support	(	pthread_cond_t *	cond,
		pthread_mutex_t *	mutex,
		const struct timespec *	abstime
	)

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.

Variable Documentation

_POSIX_Condition_variables_Default_attributes

const pthread_condattr_t _POSIX_Condition_variables_Default_attributes

The default condition variable attributes structure.