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