| /**************************************************************************** |
| * sched/pthread_internal.h |
| * |
| * Copyright (C) 2007-2009, 2011, 2013 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 __SCHED_PTHREAD_INTERNAL_H |
| #define __SCHED_PTHREAD_INTERNAL_H |
| |
| /**************************************************************************** |
| * Included Files |
| ****************************************************************************/ |
| |
| #include <nuttx/config.h> |
| |
| #include <sys/types.h> |
| #include <stdint.h> |
| #include <stdbool.h> |
| #include <pthread.h> |
| #include <sched.h> |
| |
| #include <nuttx/compiler.h> |
| |
| /**************************************************************************** |
| * Pre-processor Definitions |
| ****************************************************************************/ |
| |
| /**************************************************************************** |
| * Public Type Declarations |
| ****************************************************************************/ |
| |
| /* The following defines an entry in the pthread logic's local data set. |
| * Note that this structure is used to implemented a singly linked list. |
| * This structure is used (instead of, say, a binary search tree) because |
| * the data set will be searched using the pid as a key -- a process IDs will |
| * always be created in a montonically increasing fashion. |
| */ |
| |
| struct join_s |
| { |
| FAR struct join_s *next; /* Implements link list */ |
| uint8_t crefs; /* Reference count */ |
| bool started; /* true: pthread started. */ |
| bool detached; /* true: pthread_detached'ed */ |
| bool terminated; /* true: detach'ed+exit'ed */ |
| pthread_t thread; /* Includes pid */ |
| sem_t exit_sem; /* Implements join */ |
| sem_t data_sem; /* Implements join */ |
| pthread_addr_t exit_value; /* Returned data */ |
| }; |
| |
| /**************************************************************************** |
| * Public Variables |
| ****************************************************************************/ |
| |
| #ifdef __cplusplus |
| #define EXTERN extern "C" |
| extern "C" |
| { |
| #else |
| #define EXTERN extern |
| #endif |
| |
| /**************************************************************************** |
| * Public Function Prototypes |
| ****************************************************************************/ |
| |
| struct pthread_tcb_s; /* Forward reference */ |
| struct task_group_s; /* Forward reference */ |
| |
| void weak_function pthread_initialize(void); |
| int pthread_schedsetup(FAR struct pthread_tcb_s *tcb, int priority, start_t start, |
| pthread_startroutine_t entry); |
| int pthread_completejoin(pid_t pid, FAR void *exit_value); |
| void pthread_destroyjoin(FAR struct task_group_s *group, |
| FAR struct join_s *pjoin); |
| FAR struct join_s *pthread_findjoininfo(FAR struct task_group_s *group, |
| pid_t pid); |
| void pthread_release(FAR struct task_group_s *group); |
| int pthread_givesemaphore(sem_t *sem); |
| int pthread_takesemaphore(sem_t *sem); |
| |
| #ifdef CONFIG_MUTEX_TYPES |
| int pthread_mutexattr_verifytype(int type); |
| #endif |
| |
| #undef EXTERN |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* __SCHED_PTHREAD_INTERNAL_H */ |
| |