pthread_internal.h revision 44b53ad6818de344e0b499ad8fdbb21fcb0ff2b6
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> 32bfeab1bbe7e8d0c08b7e3f46aedab64e3b2bf706Elliott Hughes#include <stdbool.h> 331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__BEGIN_DECLS 351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 361dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projecttypedef struct pthread_internal_t 371dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 381dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project struct pthread_internal_t* next; 394f251bee5d51228217c1bf4dfc9219f3058bd3edElliott Hughes struct pthread_internal_t* prev; 401dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_attr_t attr; 411dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pid_t kernel_id; 424f251bee5d51228217c1bf4dfc9219f3058bd3edElliott Hughes bool allocated_on_heap; 431dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_cond_t join_cond; 441dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project int join_count; 451dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project void* return_value; 46d0c884d3595ecca03c3e70de9909c090cd5f9caePierre Peiffer int internal_flags; 471dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project __pthread_cleanup_t* cleanup_stack; 481dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project void** tls; /* thread-local storage area */ 495419b9474753d25dff947c7740532f86d130c0beElliott Hughes 505419b9474753d25dff947c7740532f86d130c0beElliott Hughes /* 515419b9474753d25dff947c7740532f86d130c0beElliott Hughes * The dynamic linker implements dlerror(3), which makes it hard for us to implement this 525419b9474753d25dff947c7740532f86d130c0beElliott Hughes * per-thread buffer by simply using malloc(3) and free(3). 535419b9474753d25dff947c7740532f86d130c0beElliott Hughes */ 545419b9474753d25dff947c7740532f86d130c0beElliott Hughes#define __BIONIC_DLERROR_BUFFER_SIZE 512 555419b9474753d25dff947c7740532f86d130c0beElliott Hughes char dlerror_buffer[__BIONIC_DLERROR_BUFFER_SIZE]; 561dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} pthread_internal_t; 571dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 58ae8eb74675722b57ab66a51f1d6f4f250137bb23Xi Wangint _init_thread(pthread_internal_t* thread, pid_t kernel_id, const pthread_attr_t* attr, 59bfeab1bbe7e8d0c08b7e3f46aedab64e3b2bf706Elliott Hughes void* stack_base, bool add_to_thread_list); 601a78fbb5c8228e4aea2a516818828b76044310f2Evgeniy Stepanovvoid _pthread_internal_add( pthread_internal_t* thread ); 611a78fbb5c8228e4aea2a516818828b76044310f2Evgeniy Stepanovpthread_internal_t* __get_thread(void); 621dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 6344b53ad6818de344e0b499ad8fdbb21fcb0ff2b6Elliott Hughes__LIBC_HIDDEN__ void pthread_key_clean_all(void); 6444b53ad6818de344e0b499ad8fdbb21fcb0ff2b6Elliott Hughes 6544b53ad6818de344e0b499ad8fdbb21fcb0ff2b6Elliott Hughesextern pthread_internal_t* gThreadList; 6644b53ad6818de344e0b499ad8fdbb21fcb0ff2b6Elliott Hughesextern pthread_mutex_t gThreadListLock; 6744b53ad6818de344e0b499ad8fdbb21fcb0ff2b6Elliott Hughes 681dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* needed by posix-timers.c */ 691dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 701dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ void timespec_add( struct timespec* a, const struct timespec* b ) 711dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 721dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec += b->tv_sec; 731dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec += b->tv_nsec; 741dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec >= 1000000000) { 751dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec -= 1000000000; 761dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec += 1; 771dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 781dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 791dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 801dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ void timespec_sub( struct timespec* a, const struct timespec* b ) 811dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 821dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec -= b->tv_sec; 831dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec -= b->tv_nsec; 841dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec < 0) { 851dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_nsec += 1000000000; 861dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec -= 1; 871dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project } 881dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 891dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 901dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ void timespec_zero( struct timespec* a ) 911dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 921dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project a->tv_sec = a->tv_nsec = 0; 931dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 941dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 951dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ int timespec_is_zero( const struct timespec* a ) 961dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 971dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return (a->tv_sec == 0 && a->tv_nsec == 0); 981dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 991dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1001dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ int timespec_cmp( const struct timespec* a, const struct timespec* b ) 1011dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 1021dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec < b->tv_sec) return -1; 1031dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec > b->tv_sec) return +1; 1041dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec < b->tv_nsec) return -1; 1051dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec > b->tv_nsec) return +1; 1061dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 1071dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 1081dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1091dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectstatic __inline__ int timespec_cmp0( const struct timespec* a ) 1101dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project{ 1111dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec < 0) return -1; 1121dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_sec > 0) return +1; 1131dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec < 0) return -1; 1141dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project if (a->tv_nsec > 0) return +1; 1151dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project return 0; 1161dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project} 1171dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 118bfeab1bbe7e8d0c08b7e3f46aedab64e3b2bf706Elliott Hughesextern int __pthread_cond_timedwait(pthread_cond_t*, 1191dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_mutex_t*, 120bfeab1bbe7e8d0c08b7e3f46aedab64e3b2bf706Elliott Hughes const struct timespec*, 1211dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project clockid_t); 1221dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1231dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern int __pthread_cond_timedwait_relative(pthread_cond_t*, 1241dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project pthread_mutex_t*, 1251dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project const struct timespec*); 1261dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1271dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project/* needed by fork.c */ 1281dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Projectextern void __timer_table_start_stop(int stop); 1294f086aeb4aa06e13079b7fec71a8178ceeacf318Matt Fischerextern void __bionic_atfork_run_prepare(); 1304f086aeb4aa06e13079b7fec71a8178ceeacf318Matt Fischerextern void __bionic_atfork_run_child(); 1314f086aeb4aa06e13079b7fec71a8178ceeacf318Matt Fischerextern void __bionic_atfork_run_parent(); 1321dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1331dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project__END_DECLS 1341dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project 1351dc9e472e19acfe6dc7f41e429236e7eef7ceda1The Android Open Source Project#endif /* _PTHREAD_INTERNAL_H_ */ 136