pthread_internal.h revision 1dc9e472e19acfe6dc7f41e429236e7eef7ceda1
11dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* 21dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Copyright (C) 2008 The Android Open Source Project 31dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * All rights reserved. 41dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 51dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * Redistribution and use in source and binary forms, with or without 61dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * modification, are permitted provided that the following conditions 71dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * are met: 81dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * * Redistributions of source code must retain the above copyright 91dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer. 101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * * Redistributions in binary form must reproduce the above copyright 111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * notice, this list of conditions and the following disclaimer in 121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * the documentation and/or other materials provided with the 131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * distribution. 141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * 151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 181dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 201dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS 221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT 251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project * SUCH DAMAGE. 271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project */ 281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#ifndef _PTHREAD_INTERNAL_H_ 291dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#define _PTHREAD_INTERNAL_H_ 301dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 311dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#include <pthread.h> 321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__BEGIN_DECLS 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projecttypedef struct pthread_internal_t 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct pthread_internal_t* next; 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct pthread_internal_t** pref; 391dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_attr_t attr; 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pid_t kernel_id; 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_cond_t join_cond; 421dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int join_count; 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project void* return_value; 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int intern; 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __pthread_cleanup_t* cleanup_stack; 461dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project void** tls; /* thread-local storage area */ 471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} pthread_internal_t; 481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 491dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern void _init_thread(pthread_internal_t * thread, pid_t kernel_id, pthread_attr_t * attr, void * stack_base); 501dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 511dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* needed by posix-timers.c */ 521dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 531dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ void timespec_add( struct timespec* a, const struct timespec* b ) 541dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 551dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec += b->tv_sec; 561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec += b->tv_nsec; 571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec >= 1000000000) { 581dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec -= 1000000000; 591dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec += 1; 601dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 611dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 631dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ void timespec_sub( struct timespec* a, const struct timespec* b ) 641dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 651dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec -= b->tv_sec; 661dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec -= b->tv_nsec; 671dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec < 0) { 681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec += 1000000000; 691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec -= 1; 701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ void timespec_zero( struct timespec* a ) 741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec = a->tv_nsec = 0; 761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ int timespec_is_zero( const struct timespec* a ) 791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return (a->tv_sec == 0 && a->tv_nsec == 0); 811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ int timespec_cmp( const struct timespec* a, const struct timespec* b ) 841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec < b->tv_sec) return -1; 861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec > b->tv_sec) return +1; 871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec < b->tv_nsec) return -1; 881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec > b->tv_nsec) return +1; 891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ int timespec_cmp0( const struct timespec* a ) 931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec < 0) return -1; 951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec > 0) return +1; 961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec < 0) return -1; 971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec > 0) return +1; 981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 1001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern int __pthread_cond_timedwait(pthread_cond_t*, 1021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_mutex_t*, 1031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct timespec*, 1041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project clockid_t); 1051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern int __pthread_cond_timedwait_relative(pthread_cond_t*, 1071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_mutex_t*, 1081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct timespec*); 1091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* needed by fork.c */ 1111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern void __timer_table_start_stop(int stop); 1121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__END_DECLS 1141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif /* _PTHREAD_INTERNAL_H_ */ 116