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Diffstat (limited to 'libc/include/pthread.h')
| -rw-r--r-- | libc/include/pthread.h | 235 |
1 files changed, 235 insertions, 0 deletions
diff --git a/libc/include/pthread.h b/libc/include/pthread.h new file mode 100644 index 0000000..f7dd766 --- /dev/null +++ b/libc/include/pthread.h @@ -0,0 +1,235 @@ +/* + * 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_H_ +#define _PTHREAD_H_ + +#include <time.h> +#include <signal.h> +#include <sched.h> +#include <limits.h> +#include <sys/types.h> + +/* + * Types + */ +typedef struct +{ + int volatile value; +} pthread_mutex_t; + +#define PTHREAD_MUTEX_INITIALIZER {0} +#define PTHREAD_RECURSIVE_MUTEX_INITIALIZER {0x4000} +#define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER {0x8000} + +enum { + PTHREAD_MUTEX_NORMAL = 0, + PTHREAD_MUTEX_RECURSIVE = 1, + PTHREAD_MUTEX_ERRORCHECK = 2, + + PTHREAD_MUTEX_ERRORCHECK_NP = PTHREAD_MUTEX_ERRORCHECK, + PTHREAD_MUTEX_RECURSIVE_NP = PTHREAD_MUTEX_RECURSIVE, + + PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL +}; + + + +typedef struct +{ + int volatile value; +} pthread_cond_t; + +typedef struct +{ + uint32_t flags; + void * stack_base; + size_t stack_size; + size_t guard_size; + int32_t sched_policy; + int32_t sched_priority; +} pthread_attr_t; + +typedef long pthread_mutexattr_t; +typedef long pthread_condattr_t; + +typedef int pthread_key_t; +typedef long pthread_t; + +typedef volatile int pthread_once_t; + +/* + * Defines + */ +#define PTHREAD_COND_INITIALIZER {0} + +#define PTHREAD_STACK_MIN (2 * PAGE_SIZE) + +#define PTHREAD_CREATE_DETACHED 0x00000001 +#define PTHREAD_CREATE_JOINABLE 0x00000000 + +#define PTHREAD_ONCE_INIT 0 + +#define PTHREAD_PROCESS_PRIVATE 0 +#define PTHREAD_PROCESS_SHARED 1 + +/* + * Prototypes + */ +#if __cplusplus +extern "C" { +#endif + +int pthread_attr_init(pthread_attr_t * attr); +int pthread_attr_destroy(pthread_attr_t * attr); + +int pthread_attr_setdetachstate(pthread_attr_t * attr, int state); +int pthread_attr_getdetachstate(pthread_attr_t const * attr, int * state); + +int pthread_attr_setschedpolicy(pthread_attr_t * attr, int policy); +int pthread_attr_getschedpolicy(pthread_attr_t const * attr, int * policy); + +int pthread_attr_setschedparam(pthread_attr_t * attr, struct sched_param const * param); +int pthread_attr_getschedparam(pthread_attr_t const * attr, struct sched_param * param); + +int pthread_attr_setstacksize(pthread_attr_t * attr, size_t stack_size); +int pthread_attr_getstacksize(pthread_attr_t const * attr, size_t * stack_size); + +int pthread_attr_setstackaddr(pthread_attr_t * attr, void * stackaddr); +int pthread_attr_getstackaddr(pthread_attr_t const * attr, void ** stackaddr); + +int pthread_attr_setstack(pthread_attr_t * attr, void * stackaddr, size_t stack_size); +int pthread_attr_getstack(pthread_attr_t const * attr, void ** stackaddr, size_t * stack_size); + +int pthread_attr_setguardsize(pthread_attr_t * attr, size_t guard_size); +int pthread_attr_getguardsize(pthread_attr_t const * attr, size_t * guard_size); + +int pthread_getattr_np(pthread_t thid, pthread_attr_t * attr); + +int pthread_create(pthread_t *thread, pthread_attr_t const * attr, + void *(*start_routine)(void *), void * arg); +void pthread_exit(void * retval); +int pthread_join(pthread_t thid, void ** ret_val); +int pthread_detach(pthread_t thid); + +pthread_t pthread_self(void); +int pthread_equal(pthread_t one, pthread_t two); + +int pthread_getschedparam(pthread_t thid, int * policy, + struct sched_param * param); +int pthread_setschedparam(pthread_t thid, int poilcy, + struct sched_param const * param); + +int pthread_mutexattr_init(pthread_mutexattr_t *attr); +int pthread_mutexattr_destroy(pthread_mutexattr_t *attr); +int pthread_mutexattr_gettype(const pthread_mutexattr_t *attr, int *type); +int pthread_mutexattr_settype(pthread_mutexattr_t *attr, int type); + +int pthread_mutex_init(pthread_mutex_t *mutex, + const pthread_mutexattr_t *attr); +int pthread_mutex_destroy(pthread_mutex_t *mutex); +int pthread_mutex_lock(pthread_mutex_t *mutex); +int pthread_mutex_unlock(pthread_mutex_t *mutex); +int pthread_mutex_trylock(pthread_mutex_t *mutex); +int pthread_mutex_timedlock(pthread_mutex_t *mutex, struct timespec* ts); + +int pthread_cond_init(pthread_cond_t *cond, + const pthread_condattr_t *attr); +int pthread_cond_destroy(pthread_cond_t *cond); +int pthread_cond_broadcast(pthread_cond_t *cond); +int pthread_cond_signal(pthread_cond_t *cond); +int pthread_cond_wait(pthread_cond_t *cond, pthread_mutex_t *mutex); +int pthread_cond_timedwait(pthread_cond_t *cond, + pthread_mutex_t * mutex, + const struct timespec *abstime); + +/* BIONIC: same as pthread_cond_timedwait, except the 'abstime' given refers + * to the CLOCK_MONOTONIC clock instead, to avoid any problems when + * the wall-clock time is changed brutally + */ +int pthread_cond_timedwait_monotonic(pthread_cond_t *cond, + pthread_mutex_t *mutex, + const struct timespec *abstime); + +int pthread_cond_timeout_np(pthread_cond_t *cond, + pthread_mutex_t * mutex, + unsigned msecs); + +int pthread_key_create(pthread_key_t *key, void (*destructor_function)(void *)); +int pthread_key_delete (pthread_key_t); +int pthread_setspecific(pthread_key_t key, const void *value); +void *pthread_getspecific(pthread_key_t key); + +int pthread_kill(pthread_t tid, int sig); +int pthread_sigmask(int how, const sigset_t *set, sigset_t *oset); + +int pthread_getcpuclockid(pthread_t tid, clockid_t *clockid); + +int pthread_once(pthread_once_t *once_control, void (*init_routine)(void)); + +typedef void (*__pthread_cleanup_func_t)(void*); + +typedef struct __pthread_cleanup_t { + struct __pthread_cleanup_t* __cleanup_prev; + __pthread_cleanup_func_t __cleanup_routine; + void* __cleanup_arg; +} __pthread_cleanup_t; + +extern void __pthread_cleanup_push(__pthread_cleanup_t* c, + __pthread_cleanup_func_t routine, + void* arg); + +extern void __pthread_cleanup_pop(__pthread_cleanup_t* c, + int execute); + +/* Believe or not, the definitions of pthread_cleanup_push and + * pthread_cleanup_pop below are correct. Posix states that these + * can be implemented as macros that might introduce opening and + * closing braces, and that using setjmp/longjmp/return/break/continue + * between them results in undefined behaviour. + * + * And indeed, GLibc and other C libraries use a similar definition + */ +#define pthread_cleanup_push(routine, arg) \ + do { \ + __pthread_cleanup_t __cleanup; \ + __pthread_cleanup_push( &__cleanup, (routine), (arg) ); \ + +#define pthread_cleanup_pop(execute) \ + __pthread_cleanup_pop( &__cleanup, (execute)); \ + } while (0); + +#if __cplusplus +} /* extern "C" */ +#endif + +/************ TO FIX ************/ + +#define LONG_LONG_MAX __LONG_LONG_MAX__ +#define LONG_LONG_MIN (-__LONG_LONG_MAX__ - 1) + +#endif // _PTHREAD_H_ |