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/*
* File : pthread_attr.c
* This file is part of RT-Thread RTOS
* COPYRIGHT (C) 2006 - 2010, RT-Thread Development Team
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* Change Logs:
* Date Author Notes
* 2010-10-26 Bernard the first version
*/
#include <rtthread.h>
#include "pthread.h"
#include "sched.h"
#include <string.h>
#define DEFAULT_STACK_SIZE 2048
#define DEFAULT_PRIORITY (RT_THREAD_PRIORITY_MAX/2 + RT_THREAD_PRIORITY_MAX/4)
const pthread_attr_t pthread_default_attr =
{
0, /* stack base */
DEFAULT_STACK_SIZE, /* stack size */
DEFAULT_PRIORITY, /* priority */
PTHREAD_CREATE_JOINABLE, /* detach state */
SCHED_FIFO, /* scheduler policy */
PTHREAD_INHERIT_SCHED /* Inherit parent prio/policy */
};
int pthread_attr_init(pthread_attr_t *attr)
{
RT_ASSERT(attr != RT_NULL);
*attr = pthread_default_attr;
return 0;
}
RTM_EXPORT(pthread_attr_init);
int pthread_attr_destroy(pthread_attr_t *attr)
{
RT_ASSERT(attr != RT_NULL);
memset(attr, 0, sizeof(pthread_attr_t));
return 0;
}
RTM_EXPORT(pthread_attr_destroy);
int pthread_attr_setdetachstate(pthread_attr_t *attr, int state)
{
RT_ASSERT(attr != RT_NULL);
if (state != PTHREAD_CREATE_JOINABLE && state != PTHREAD_CREATE_DETACHED)
return EINVAL;
attr->detachstate = state;
return 0;
}
RTM_EXPORT(pthread_attr_setdetachstate);
int pthread_attr_getdetachstate(pthread_attr_t const *attr, int *state)
{
RT_ASSERT(attr != RT_NULL);
*state = (int)attr->detachstate;
return 0;
}
RTM_EXPORT(pthread_attr_getdetachstate);
int pthread_attr_setschedpolicy(pthread_attr_t *attr, int policy)
{
RT_ASSERT(attr != RT_NULL);
attr->policy = policy;
return 0;
}
RTM_EXPORT(pthread_attr_setschedpolicy);
int pthread_attr_getschedpolicy(pthread_attr_t const *attr, int *policy)
{
RT_ASSERT(attr != RT_NULL);
*policy = (int)attr->policy;
return 0;
}
RTM_EXPORT(pthread_attr_getschedpolicy);
int pthread_attr_setschedparam(pthread_attr_t *attr,
struct sched_param const *param)
{
RT_ASSERT(attr != RT_NULL);
RT_ASSERT(param != RT_NULL);
attr->priority = param->sched_priority;
return 0;
}
RTM_EXPORT(pthread_attr_setschedparam);
int pthread_attr_getschedparam(pthread_attr_t const *attr,
struct sched_param *param)
{
RT_ASSERT(attr != RT_NULL);
RT_ASSERT(param != RT_NULL);
param->sched_priority = attr->priority;
return 0;
}
RTM_EXPORT(pthread_attr_getschedparam);
int pthread_attr_setstacksize(pthread_attr_t *attr, size_t stack_size)
{
RT_ASSERT(attr != RT_NULL);
attr->stack_size = stack_size;
return 0;
}
RTM_EXPORT(pthread_attr_setstacksize);
int pthread_attr_getstacksize(pthread_attr_t const *attr, size_t *stack_size)
{
RT_ASSERT(attr != RT_NULL);
*stack_size = attr->stack_size;
return 0;
}
RTM_EXPORT(pthread_attr_getstacksize);
int pthread_attr_setstackaddr(pthread_attr_t *attr, void *stack_addr)
{
RT_ASSERT(attr != RT_NULL);
return EOPNOTSUPP;
}
RTM_EXPORT(pthread_attr_setstackaddr);
int pthread_attr_getstackaddr(pthread_attr_t const *attr, void **stack_addr)
{
RT_ASSERT(attr != RT_NULL);
return EOPNOTSUPP;
}
RTM_EXPORT(pthread_attr_getstackaddr);
int pthread_attr_setstack(pthread_attr_t *attr,
void *stack_base,
size_t stack_size)
{
RT_ASSERT(attr != RT_NULL);
attr->stack_base = stack_base;
attr->stack_size = RT_ALIGN_DOWN(stack_size, RT_ALIGN_SIZE);
return 0;
}
RTM_EXPORT(pthread_attr_setstack);
int pthread_attr_getstack(pthread_attr_t const *attr,
void **stack_base,
size_t *stack_size)
{
RT_ASSERT(attr != RT_NULL);
*stack_base = attr->stack_base;
*stack_size = attr->stack_size;
return 0;
}
RTM_EXPORT(pthread_attr_getstack);
int pthread_attr_setguardsize(pthread_attr_t *attr, size_t guard_size)
{
return EOPNOTSUPP;
}
int pthread_attr_getguardsize(pthread_attr_t const *attr, size_t *guard_size)
{
return EOPNOTSUPP;
}
RTM_EXPORT(pthread_attr_getguardsize);
int pthread_attr_setscope(pthread_attr_t *attr, int scope)
{
if (scope == PTHREAD_SCOPE_SYSTEM)
return 0;
if (scope == PTHREAD_SCOPE_PROCESS)
return EOPNOTSUPP;
return EINVAL;
}
RTM_EXPORT(pthread_attr_setscope);
int pthread_attr_getscope(pthread_attr_t const *attr)
{
return PTHREAD_SCOPE_SYSTEM;
}
RTM_EXPORT(pthread_attr_getscope);
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