9d23e04c43
imgtec pointed out that pthread_kill(3) was broken, but most of the other functions that ought to return ESRCH for invalid/exited threads were equally broken. Change-Id: I96347f6195549aee0c72dc39063e6c5d06d2e01f
314 lines
12 KiB
C
314 lines
12 KiB
C
/*
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* Copyright (C) 2008 The Android Open Source Project
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* All rights reserved.
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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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* * 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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* * 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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*
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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 LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#ifndef _PTHREAD_H_
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#define _PTHREAD_H_
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#include <time.h>
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#include <signal.h>
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#include <sched.h>
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#include <limits.h>
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#include <sys/types.h>
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/*
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* Types
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*/
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typedef struct
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{
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int volatile value;
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} pthread_mutex_t;
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#define __PTHREAD_MUTEX_INIT_VALUE 0
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#define __PTHREAD_RECURSIVE_MUTEX_INIT_VALUE 0x4000
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#define __PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE 0x8000
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#define PTHREAD_MUTEX_INITIALIZER {__PTHREAD_MUTEX_INIT_VALUE}
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#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER {__PTHREAD_RECURSIVE_MUTEX_INIT_VALUE}
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#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER {__PTHREAD_ERRORCHECK_MUTEX_INIT_VALUE}
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enum {
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PTHREAD_MUTEX_NORMAL = 0,
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PTHREAD_MUTEX_RECURSIVE = 1,
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PTHREAD_MUTEX_ERRORCHECK = 2,
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PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK,
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PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE,
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PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
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};
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typedef struct
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{
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int volatile value;
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} pthread_cond_t;
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typedef struct
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{
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uint32_t flags;
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void * stack_base;
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size_t stack_size;
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size_t guard_size;
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int32_t sched_policy;
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int32_t sched_priority;
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} pthread_attr_t;
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typedef long pthread_mutexattr_t;
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typedef long pthread_condattr_t;
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typedef int pthread_key_t;
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typedef long pthread_t;
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typedef volatile int pthread_once_t;
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/*
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* Defines
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*/
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#define PTHREAD_COND_INITIALIZER {0}
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#define PTHREAD_STACK_MIN (2 * PAGE_SIZE)
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#define PTHREAD_CREATE_DETACHED 0x00000001
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#define PTHREAD_CREATE_JOINABLE 0x00000000
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#define PTHREAD_ONCE_INIT 0
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#define PTHREAD_PROCESS_PRIVATE 0
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#define PTHREAD_PROCESS_SHARED 1
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#define PTHREAD_SCOPE_SYSTEM 0
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#define PTHREAD_SCOPE_PROCESS 1
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/*
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* Prototypes
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*/
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#ifdef __cplusplus
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extern "C" {
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#endif
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int pthread_attr_init(pthread_attr_t * attr);
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int pthread_attr_destroy(pthread_attr_t * attr);
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int pthread_attr_setdetachstate(pthread_attr_t * attr, int state);
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int pthread_attr_getdetachstate(pthread_attr_t const * attr, int * state);
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int pthread_attr_setschedpolicy(pthread_attr_t * attr, int policy);
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int pthread_attr_getschedpolicy(pthread_attr_t const * attr, int * policy);
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int pthread_attr_setschedparam(pthread_attr_t * attr, struct sched_param const * param);
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int pthread_attr_getschedparam(pthread_attr_t const * attr, struct sched_param * param);
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int pthread_attr_setstacksize(pthread_attr_t * attr, size_t stack_size);
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int pthread_attr_getstacksize(pthread_attr_t const * attr, size_t * stack_size);
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int pthread_attr_setstackaddr(pthread_attr_t * attr, void * stackaddr);
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int pthread_attr_getstackaddr(pthread_attr_t const * attr, void ** stackaddr);
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int pthread_attr_setstack(pthread_attr_t * attr, void * stackaddr, size_t stack_size);
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int pthread_attr_getstack(pthread_attr_t const * attr, void ** stackaddr, size_t * stack_size);
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int pthread_attr_setguardsize(pthread_attr_t * attr, size_t guard_size);
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int pthread_attr_getguardsize(pthread_attr_t const * attr, size_t * guard_size);
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int pthread_attr_setscope(pthread_attr_t *attr, int scope);
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int pthread_attr_getscope(pthread_attr_t const *attr);
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int pthread_getattr_np(pthread_t thid, pthread_attr_t * attr);
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int pthread_create(pthread_t *thread, pthread_attr_t const * attr,
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void *(*start_routine)(void *), void * arg);
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void pthread_exit(void * retval);
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int pthread_join(pthread_t thid, void ** ret_val);
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int pthread_detach(pthread_t thid);
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pthread_t pthread_self(void);
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int pthread_equal(pthread_t one, pthread_t two);
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int pthread_getschedparam(pthread_t thid, int * policy,
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struct sched_param * param);
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int pthread_setschedparam(pthread_t thid, int policy,
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struct sched_param const * param);
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int pthread_mutexattr_init(pthread_mutexattr_t *attr);
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int pthread_mutexattr_destroy(pthread_mutexattr_t *attr);
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int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type);
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int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type);
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int pthread_mutexattr_setpshared(pthread_mutexattr_t *attr, int pshared);
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int pthread_mutexattr_getpshared(pthread_mutexattr_t *attr, int *pshared);
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int pthread_mutex_init(pthread_mutex_t *mutex,
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const pthread_mutexattr_t *attr);
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int pthread_mutex_destroy(pthread_mutex_t *mutex);
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int pthread_mutex_lock(pthread_mutex_t *mutex);
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int pthread_mutex_unlock(pthread_mutex_t *mutex);
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int pthread_mutex_trylock(pthread_mutex_t *mutex);
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int pthread_mutex_timedlock(pthread_mutex_t *mutex, struct timespec* ts);
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int pthread_condattr_init(pthread_condattr_t *attr);
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int pthread_condattr_getpshared(pthread_condattr_t *attr, int *pshared);
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int pthread_condattr_setpshared(pthread_condattr_t* attr, int pshared);
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int pthread_condattr_destroy(pthread_condattr_t *attr);
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int pthread_cond_init(pthread_cond_t *cond,
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const pthread_condattr_t *attr);
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int pthread_cond_destroy(pthread_cond_t *cond);
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int pthread_cond_broadcast(pthread_cond_t *cond);
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int pthread_cond_signal(pthread_cond_t *cond);
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int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex);
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int pthread_cond_timedwait(pthread_cond_t *cond,
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pthread_mutex_t * mutex,
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const struct timespec *abstime);
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/* BIONIC: same as pthread_cond_timedwait, except the 'abstime' given refers
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* to the CLOCK_MONOTONIC clock instead, to avoid any problems when
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* the wall-clock time is changed brutally
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*/
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int pthread_cond_timedwait_monotonic_np(pthread_cond_t *cond,
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pthread_mutex_t *mutex,
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const struct timespec *abstime);
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/* BIONIC: DEPRECATED. same as pthread_cond_timedwait_monotonic_np()
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* unfortunately pthread_cond_timedwait_monotonic has shipped already
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*/
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int pthread_cond_timedwait_monotonic(pthread_cond_t *cond,
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pthread_mutex_t *mutex,
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const struct timespec *abstime);
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#define HAVE_PTHREAD_COND_TIMEDWAIT_MONOTONIC 1
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/* BIONIC: same as pthread_cond_timedwait, except the 'reltime' given refers
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* is relative to the current time.
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*/
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int pthread_cond_timedwait_relative_np(pthread_cond_t *cond,
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pthread_mutex_t *mutex,
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const struct timespec *reltime);
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#define HAVE_PTHREAD_COND_TIMEDWAIT_RELATIVE 1
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int pthread_cond_timeout_np(pthread_cond_t *cond,
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pthread_mutex_t * mutex,
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unsigned msecs);
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/* same as pthread_mutex_lock(), but will wait up to 'msecs' milli-seconds
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* before returning. same return values than pthread_mutex_trylock though, i.e.
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* returns EBUSY if the lock could not be acquired after the timeout
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* expired.
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*/
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int pthread_mutex_lock_timeout_np(pthread_mutex_t *mutex, unsigned msecs);
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/* read-write lock support */
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typedef int pthread_rwlockattr_t;
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typedef struct {
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pthread_mutex_t lock;
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pthread_cond_t cond;
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int numLocks;
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int writerThreadId;
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int pendingReaders;
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int pendingWriters;
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void* reserved[4]; /* for future extensibility */
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} pthread_rwlock_t;
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#define PTHREAD_RWLOCK_INITIALIZER { PTHREAD_MUTEX_INITIALIZER, PTHREAD_COND_INITIALIZER, 0, 0, 0, 0, { NULL, NULL, NULL, NULL } }
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int pthread_rwlockattr_init(pthread_rwlockattr_t *attr);
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int pthread_rwlockattr_destroy(pthread_rwlockattr_t *attr);
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int pthread_rwlockattr_setpshared(pthread_rwlockattr_t *attr, int pshared);
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int pthread_rwlockattr_getpshared(pthread_rwlockattr_t *attr, int *pshared);
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int pthread_rwlock_init(pthread_rwlock_t *rwlock, const pthread_rwlockattr_t *attr);
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int pthread_rwlock_destroy(pthread_rwlock_t *rwlock);
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int pthread_rwlock_rdlock(pthread_rwlock_t *rwlock);
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int pthread_rwlock_tryrdlock(pthread_rwlock_t *rwlock);
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int pthread_rwlock_timedrdlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout);
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int pthread_rwlock_wrlock(pthread_rwlock_t *rwlock);
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int pthread_rwlock_trywrlock(pthread_rwlock_t *rwlock);
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int pthread_rwlock_timedwrlock(pthread_rwlock_t *rwlock, const struct timespec *abs_timeout);
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int pthread_rwlock_unlock(pthread_rwlock_t *rwlock);
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int pthread_key_create(pthread_key_t *key, void (*destructor_function)(void *));
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int pthread_key_delete (pthread_key_t);
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int pthread_setspecific(pthread_key_t key, const void *value);
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void *pthread_getspecific(pthread_key_t key);
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int pthread_kill(pthread_t tid, int sig);
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int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset);
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int pthread_getcpuclockid(pthread_t tid, clockid_t *clockid);
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int pthread_once(pthread_once_t *once_control, void (*init_routine)(void));
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int pthread_setname_np(pthread_t thid, const char *thname);
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int pthread_atfork(void (*prepare)(void), void (*parent)(void), void(*child)(void));
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typedef void (*__pthread_cleanup_func_t)(void*);
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typedef struct __pthread_cleanup_t {
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struct __pthread_cleanup_t* __cleanup_prev;
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__pthread_cleanup_func_t __cleanup_routine;
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void* __cleanup_arg;
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} __pthread_cleanup_t;
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extern void __pthread_cleanup_push(__pthread_cleanup_t* c,
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__pthread_cleanup_func_t routine,
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void* arg);
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extern void __pthread_cleanup_pop(__pthread_cleanup_t* c,
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int execute);
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/* Believe or not, the definitions of pthread_cleanup_push and
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* pthread_cleanup_pop below are correct. Posix states that these
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* can be implemented as macros that might introduce opening and
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* closing braces, and that using setjmp/longjmp/return/break/continue
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* between them results in undefined behaviour.
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*
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* And indeed, GLibc and other C libraries use a similar definition
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*/
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#define pthread_cleanup_push(routine, arg) \
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do { \
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__pthread_cleanup_t __cleanup; \
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__pthread_cleanup_push( &__cleanup, (routine), (arg) ); \
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#define pthread_cleanup_pop(execute) \
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__pthread_cleanup_pop( &__cleanup, (execute)); \
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} while (0);
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#ifdef __cplusplus
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} /* extern "C" */
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#endif
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#endif /* _PTHREAD_H_ */
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