137 lines
4.9 KiB
C
137 lines
4.9 KiB
C
/****************************************************************************
|
|
* include/nuttx/pthread.h
|
|
* Non-standard, NuttX-specific pthread-related declarations.
|
|
*
|
|
* Copyright (C) 2011, 2015-2016 Gregory Nutt. All rights reserved.
|
|
* Author: Gregory Nutt <gnutt@nuttx.org>
|
|
*
|
|
* Redistribution and use in source and binary forms, with or without
|
|
* modification, are permitted provided that the following conditions
|
|
* are met:
|
|
*
|
|
* 1. Redistributions of source code must retain the above copyright
|
|
* notice, this list of conditions and the following disclaimer.
|
|
* 2. Redistributions in binary form must reproduce the above copyright
|
|
* notice, this list of conditions and the following disclaimer in
|
|
* the documentation and/or other materials provided with the
|
|
* distribution.
|
|
* 3. Neither the name NuttX nor the names of its contributors may be
|
|
* used to endorse or promote products derived from this software
|
|
* without specific prior written permission.
|
|
*
|
|
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
|
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
|
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
|
|
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
|
|
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
|
|
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
|
|
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
|
|
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
|
|
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
|
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
|
|
* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
|
|
* POSSIBILITY OF SUCH DAMAGE.
|
|
*
|
|
****************************************************************************/
|
|
|
|
#ifndef __INCLUDE_NUTTX_PTHREAD_H
|
|
#define __INCLUDE_NUTTX_PTHREAD_H
|
|
|
|
/****************************************************************************
|
|
* Included Files
|
|
****************************************************************************/
|
|
|
|
#include <nuttx/config.h>
|
|
|
|
#include <pthread.h>
|
|
#include <sched.h>
|
|
|
|
/****************************************************************************
|
|
* Pre-processor Definitions
|
|
****************************************************************************/
|
|
|
|
/* Default pthread attribute initializer */
|
|
|
|
#if CONFIG_RR_INTERVAL == 0
|
|
# define PTHREAD_DEFAULT_POLICY SCHED_FIFO
|
|
#else
|
|
# define PTHREAD_DEFAULT_POLICY SCHED_RR
|
|
#endif
|
|
|
|
/* A lot of hassle to use the old-fashioned struct initializers. But this
|
|
* gives us backward compatibility with some very old compilers.
|
|
*/
|
|
|
|
#if defined(CONFIG_SCHED_SPORADIC) && defined(CONFIG_SMP)
|
|
# define PTHREAD_ATTR_INITIALIZER \
|
|
{ \
|
|
PTHREAD_DEFAULT_PRIORITY, /* priority */ \
|
|
PTHREAD_DEFAULT_POLICY, /* policy */ \
|
|
PTHREAD_EXPLICIT_SCHED, /* inheritsched */ \
|
|
0, /* low_priority */ \
|
|
0, /* max_repl */ \
|
|
0, /* affinity */ \
|
|
PTHREAD_STACK_DEFAULT, /* stacksize */ \
|
|
{0, 0}, /* repl_period */ \
|
|
{0, 0} /* budget */ \
|
|
}
|
|
#elif defined(CONFIG_SCHED_SPORADIC)
|
|
# define PTHREAD_ATTR_INITIALIZER \
|
|
{ \
|
|
PTHREAD_DEFAULT_PRIORITY, /* priority */ \
|
|
PTHREAD_DEFAULT_POLICY, /* policy */ \
|
|
PTHREAD_EXPLICIT_SCHED, /* inheritsched */ \
|
|
0, /* low_priority */ \
|
|
0, /* max_repl */ \
|
|
PTHREAD_STACK_DEFAULT, /* stacksize */ \
|
|
{0, 0}, /* repl_period */ \
|
|
{0, 0}, /* budget */ \
|
|
}
|
|
#elif defined(CONFIG_SMP)
|
|
# define PTHREAD_ATTR_INITIALIZER \
|
|
{ \
|
|
PTHREAD_DEFAULT_PRIORITY, /* priority */ \
|
|
PTHREAD_DEFAULT_POLICY, /* policy */ \
|
|
PTHREAD_EXPLICIT_SCHED, /* inheritsched */ \
|
|
0, /* affinity */ \
|
|
PTHREAD_STACK_DEFAULT, /* stacksize */ \
|
|
}
|
|
#else
|
|
# define PTHREAD_ATTR_INITIALIZER \
|
|
{ \
|
|
PTHREAD_DEFAULT_PRIORITY, /* priority */ \
|
|
PTHREAD_DEFAULT_POLICY, /* policy */ \
|
|
PTHREAD_EXPLICIT_SCHED, /* inheritsched */ \
|
|
PTHREAD_STACK_DEFAULT, /* stacksize */ \
|
|
}
|
|
#endif
|
|
|
|
/****************************************************************************
|
|
* Public Data
|
|
****************************************************************************/
|
|
|
|
#ifdef __cplusplus
|
|
#define EXTERN extern "C"
|
|
extern "C"
|
|
{
|
|
#else
|
|
#define EXTERN extern
|
|
#endif
|
|
|
|
/* Default pthread attributes. This global can only be shared within the
|
|
* kernel- or within the user- address space.
|
|
*/
|
|
|
|
EXTERN const pthread_attr_t g_default_pthread_attr;
|
|
|
|
/****************************************************************************
|
|
* Public Function Prototypes
|
|
****************************************************************************/
|
|
|
|
#undef EXTERN
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* __INCLUDE_NUTTX_PTHREAD_H */
|