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/**
* @file
*
* @brief POSIX Threads Private Support
*
* This include file contains all the private support information for
* POSIX threads.
*/
/*
* COPYRIGHT (c) 1989-2011.
* On-Line Applications Research Corporation (OAR).
*
* The license and distribution terms for this file may be
* found in the file LICENSE in this distribution or at
* http://www.rtems.org/license/LICENSE.
*/
#ifndef _RTEMS_POSIX_PTHREADIMPL_H
#define _RTEMS_POSIX_PTHREADIMPL_H
#include <rtems/posix/pthread.h>
#include <rtems/posix/config.h>
#include <rtems/posix/threadsup.h>
#include <rtems/score/assert.h>
#include <rtems/score/objectimpl.h>
#include <rtems/score/timespec.h>
#include <rtems/score/threadimpl.h>
#include <rtems/score/watchdogimpl.h>
#ifdef __cplusplus
extern "C" {
#endif
/**
* @addtogroup POSIX_PTHREAD
*/
/**@{**/
/**
* The following sets the minimum stack size for POSIX threads.
*/
#define PTHREAD_MINIMUM_STACK_SIZE (_Stack_Minimum() * 2)
/**
* The following defines the information control block used to manage
* this class of objects.
*/
extern Thread_Information _POSIX_Threads_Information;
RTEMS_INLINE_ROUTINE void _POSIX_Threads_Sporadic_timer_insert(
Thread_Control *the_thread,
POSIX_API_Control *api
)
{
the_thread->cpu_time_budget =
_Timespec_To_ticks( &api->schedparam.sched_ss_init_budget );
_Watchdog_Per_CPU_insert_ticks(
&api->Sporadic.Timer,
_Per_CPU_Get(),
_Timespec_To_ticks( &api->schedparam.sched_ss_repl_period )
);
}
void _POSIX_Threads_Sporadic_timer( Watchdog_Control *watchdog );
/**
* @brief POSIX threads sporadic budget callout.
*
* This routine handles the sporadic scheduling algorithm.
*
* @param[in] the_thread is a pointer to the thread whose budget
* has been exceeded.
*/
void _POSIX_Threads_Sporadic_budget_callout(
Thread_Control *the_thread
);
/**
* @brief Translate sched_param into SuperCore terms.
*
* This method translates the POSIX API sched_param into the corresponding
* SuperCore settings.
*
* @param[in] policy is the POSIX scheduling policy
* @param[in] param points to the scheduling parameter structure
* @param[in] budget_algorithm points to the output CPU Budget algorithm
* @param[in] budget_callout points to the output CPU Callout
*
* @retval 0 Indicates success.
* @retval error_code POSIX error code indicating failure.
*/
int _POSIX_Thread_Translate_sched_param(
int policy,
struct sched_param *param,
Thread_CPU_budget_algorithms *budget_algorithm,
Thread_CPU_budget_algorithm_callout *budget_callout
);
RTEMS_INLINE_ROUTINE Thread_Control *_POSIX_Threads_Allocate(void)
{
_Objects_Allocator_lock();
_Thread_Kill_zombies();
return (Thread_Control *)
_Objects_Allocate_unprotected( &_POSIX_Threads_Information.Objects );
}
RTEMS_INLINE_ROUTINE void _POSIX_Threads_Free (
Thread_Control *the_pthread
)
{
_Objects_Free( &_POSIX_Threads_Information.Objects, &the_pthread->Object );
}
/** @} */
#ifdef __cplusplus
}
#endif
#endif
/* end of include file */
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