forked from Imagelibrary/rtems
c9a41b0043
Move the CPU time budget to the thread configuration. This simplifies _Thread_Initialize().
118 lines
2.7 KiB
C
118 lines
2.7 KiB
C
/**
|
|
* @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/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 _POSIX_Threads_Minimum_stack_size
|
|
|
|
#if defined(RTEMS_POSIX_API)
|
|
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->Sporadic.sched_ss_init_budget );
|
|
|
|
_Watchdog_Per_CPU_insert_ticks(
|
|
&api->Sporadic.Timer,
|
|
_Per_CPU_Get(),
|
|
_Timespec_To_ticks( &api->Sporadic.sched_ss_repl_period )
|
|
);
|
|
}
|
|
#endif
|
|
|
|
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
|
|
);
|
|
|
|
int _POSIX_Thread_Translate_to_sched_policy(
|
|
Thread_CPU_budget_algorithms budget_algorithm
|
|
);
|
|
|
|
/**
|
|
* @brief Translates the POSIX scheduling policy and parameters to parts of the
|
|
* thread configuration.
|
|
*
|
|
* @param policy is the POSIX scheduling policy.
|
|
*
|
|
* @param param is the pointer to the POSIX scheduling parameters.
|
|
*
|
|
* @param[out] config is the pointer to a thread configuration to set the
|
|
* budget algorithm, callout, and CPU time budget.
|
|
*
|
|
* @retval 0 The operation was successful.
|
|
*
|
|
* @retval EINVAL The POSIX scheduling policy or parameters were invalid.
|
|
*/
|
|
int _POSIX_Thread_Translate_sched_param(
|
|
int policy,
|
|
const struct sched_param *param,
|
|
Thread_Configuration *config
|
|
);
|
|
|
|
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 );
|
|
}
|
|
|
|
/** @} */
|
|
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif
|
|
/* end of include file */
|