bionic/libc/bionic/pthread_internal.h
2009-06-03 19:32:37 +02:00

116 lines
3.8 KiB
C

/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * 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.
*
* 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 _PTHREAD_INTERNAL_H_
#define _PTHREAD_INTERNAL_H_
#include <pthread.h>
__BEGIN_DECLS
typedef struct pthread_internal_t
{
struct pthread_internal_t* next;
struct pthread_internal_t** pref;
pthread_attr_t attr;
pid_t kernel_id;
pthread_cond_t join_cond;
int join_count;
void* return_value;
int intern;
__pthread_cleanup_t* cleanup_stack;
void** tls; /* thread-local storage area */
} pthread_internal_t;
extern void _init_thread(pthread_internal_t * thread, pid_t kernel_id, pthread_attr_t * attr, void * stack_base);
/* needed by posix-timers.c */
static __inline__ void timespec_add( struct timespec* a, const struct timespec* b )
{
a->tv_sec += b->tv_sec;
a->tv_nsec += b->tv_nsec;
if (a->tv_nsec >= 1000000000) {
a->tv_nsec -= 1000000000;
a->tv_sec += 1;
}
}
static __inline__ void timespec_sub( struct timespec* a, const struct timespec* b )
{
a->tv_sec -= b->tv_sec;
a->tv_nsec -= b->tv_nsec;
if (a->tv_nsec < 0) {
a->tv_nsec += 1000000000;
a->tv_sec -= 1;
}
}
static __inline__ void timespec_zero( struct timespec* a )
{
a->tv_sec = a->tv_nsec = 0;
}
static __inline__ int timespec_is_zero( const struct timespec* a )
{
return (a->tv_sec == 0 && a->tv_nsec == 0);
}
static __inline__ int timespec_cmp( const struct timespec* a, const struct timespec* b )
{
if (a->tv_sec < b->tv_sec) return -1;
if (a->tv_sec > b->tv_sec) return +1;
if (a->tv_nsec < b->tv_nsec) return -1;
if (a->tv_nsec > b->tv_nsec) return +1;
return 0;
}
static __inline__ int timespec_cmp0( const struct timespec* a )
{
if (a->tv_sec < 0) return -1;
if (a->tv_sec > 0) return +1;
if (a->tv_nsec < 0) return -1;
if (a->tv_nsec > 0) return +1;
return 0;
}
extern int __pthread_cond_timedwait(pthread_cond_t*,
pthread_mutex_t*,
const struct timespec*,
clockid_t);
extern int __pthread_cond_timedwait_relative(pthread_cond_t*,
pthread_mutex_t*,
const struct timespec*);
/* needed by fork.c */
extern void __timer_table_start_stop(int stop);
__END_DECLS
#endif /* _PTHREAD_INTERNAL_H_ */