2002-08-19 Jeff Johnston <jjohnstn@redhat.com>
* libc/sys/linux/include/pthread.h: New file.
This commit is contained in:
Jeff Johnston
parent
64b5e8f2bb
commit
ada73509c0
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@ -1,3 +1,7 @@
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2002-08-19 Jeff Johnston <jjohnstn@redhat.com>
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* libc/sys/linux/include/pthread.h: New file.
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2002-08-19 Jeff Johnston <jjohnstn@redhat.com>
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* libc/include/sys/types.h: Support __need_inttypes macro
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@ -0,0 +1,682 @@
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/* Linuxthreads - a simple clone()-based implementation of Posix */
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/* threads for Linux. */
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/* Copyright (C) 1996 Xavier Leroy (Xavier.Leroy@inria.fr) */
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/* */
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/* This program is free software; you can redistribute it and/or */
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/* modify it under the terms of the GNU Library General Public License */
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/* as published by the Free Software Foundation; either version 2 */
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/* of the License, or (at your option) any later version. */
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/* */
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/* This program is distributed in the hope that it will be useful, */
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/* but WITHOUT ANY WARRANTY; without even the implied warranty of */
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/* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */
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/* GNU Library General Public License for more details. */
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#ifndef _PTHREAD_H
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#define _PTHREAD_H 1
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#include <features.h>
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#include <sched.h>
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#include <time.h>
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#define __need_sigset_t
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#include <signal.h>
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#include <bits/pthreadtypes.h>
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#include <bits/initspin.h>
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__BEGIN_DECLS
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/* Initializers. */
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#define PTHREAD_MUTEX_INITIALIZER \
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{0, 0, 0, PTHREAD_MUTEX_TIMED_NP, __LOCK_INITIALIZER}
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#ifdef __USE_GNU
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# define PTHREAD_RECURSIVE_MUTEX_INITIALIZER_NP \
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{0, 0, 0, PTHREAD_MUTEX_RECURSIVE_NP, __LOCK_INITIALIZER}
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# define PTHREAD_ERRORCHECK_MUTEX_INITIALIZER_NP \
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{0, 0, 0, PTHREAD_MUTEX_ERRORCHECK_NP, __LOCK_INITIALIZER}
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# define PTHREAD_ADAPTIVE_MUTEX_INITIALIZER_NP \
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{0, 0, 0, PTHREAD_MUTEX_ADAPTIVE_NP, __LOCK_INITIALIZER}
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#endif
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#define PTHREAD_COND_INITIALIZER {__LOCK_INITIALIZER, 0}
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#ifdef __USE_UNIX98
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# define PTHREAD_RWLOCK_INITIALIZER \
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{ __LOCK_INITIALIZER, 0, NULL, NULL, NULL, \
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PTHREAD_RWLOCK_DEFAULT_NP, PTHREAD_PROCESS_PRIVATE }
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#endif
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#ifdef __USE_GNU
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# define PTHREAD_RWLOCK_WRITER_NONRECURSIVE_INITIALIZER_NP \
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{ __LOCK_INITIALIZER, 0, NULL, NULL, NULL, \
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PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP, PTHREAD_PROCESS_PRIVATE }
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#endif
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/* Values for attributes. */
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enum
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{
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PTHREAD_CREATE_JOINABLE,
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#define PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE
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PTHREAD_CREATE_DETACHED
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#define PTHREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED
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};
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enum
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{
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PTHREAD_INHERIT_SCHED,
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#define PTHREAD_INHERIT_SCHED PTHREAD_INHERIT_SCHED
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PTHREAD_EXPLICIT_SCHED
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#define PTHREAD_EXPLICIT_SCHED PTHREAD_EXPLICIT_SCHED
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};
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enum
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{
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PTHREAD_SCOPE_SYSTEM,
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#define PTHREAD_SCOPE_SYSTEM PTHREAD_SCOPE_SYSTEM
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PTHREAD_SCOPE_PROCESS
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#define PTHREAD_SCOPE_PROCESS PTHREAD_SCOPE_PROCESS
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};
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enum
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{
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PTHREAD_MUTEX_TIMED_NP,
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PTHREAD_MUTEX_RECURSIVE_NP,
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PTHREAD_MUTEX_ERRORCHECK_NP,
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PTHREAD_MUTEX_ADAPTIVE_NP
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#ifdef __USE_UNIX98
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,
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PTHREAD_MUTEX_NORMAL = PTHREAD_MUTEX_TIMED_NP,
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PTHREAD_MUTEX_RECURSIVE = PTHREAD_MUTEX_RECURSIVE_NP,
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PTHREAD_MUTEX_ERRORCHECK = PTHREAD_MUTEX_ERRORCHECK_NP,
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PTHREAD_MUTEX_DEFAULT = PTHREAD_MUTEX_NORMAL
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#endif
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#ifdef __USE_GNU
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/* For compatibility. */
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, PTHREAD_MUTEX_FAST_NP = PTHREAD_MUTEX_ADAPTIVE_NP
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#endif
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};
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enum
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{
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PTHREAD_PROCESS_PRIVATE,
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#define PTHREAD_PROCESS_PRIVATE PTHREAD_PROCESS_PRIVATE
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PTHREAD_PROCESS_SHARED
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#define PTHREAD_PROCESS_SHARED PTHREAD_PROCESS_SHARED
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};
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#ifdef __USE_UNIX98
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enum
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{
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PTHREAD_RWLOCK_PREFER_READER_NP,
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PTHREAD_RWLOCK_PREFER_WRITER_NP,
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PTHREAD_RWLOCK_PREFER_WRITER_NONRECURSIVE_NP,
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PTHREAD_RWLOCK_DEFAULT_NP = PTHREAD_RWLOCK_PREFER_WRITER_NP
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};
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#endif /* Unix98 */
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#define PTHREAD_ONCE_INIT 0
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/* Special constants */
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#ifdef __USE_XOPEN2K
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/* -1 is distinct from 0 and all errno constants */
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# define PTHREAD_BARRIER_SERIAL_THREAD -1
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#endif
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/* Cleanup buffers */
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struct _pthread_cleanup_buffer
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{
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void (*__routine) (void *); /* Function to call. */
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void *__arg; /* Its argument. */
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int __canceltype; /* Saved cancellation type. */
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struct _pthread_cleanup_buffer *__prev; /* Chaining of cleanup functions. */
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};
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/* Cancellation */
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enum
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{
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PTHREAD_CANCEL_ENABLE,
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#define PTHREAD_CANCEL_ENABLE PTHREAD_CANCEL_ENABLE
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PTHREAD_CANCEL_DISABLE
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#define PTHREAD_CANCEL_DISABLE PTHREAD_CANCEL_DISABLE
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};
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enum
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{
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PTHREAD_CANCEL_DEFERRED,
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#define PTHREAD_CANCEL_DEFERRED PTHREAD_CANCEL_DEFERRED
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PTHREAD_CANCEL_ASYNCHRONOUS
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#define PTHREAD_CANCEL_ASYNCHRONOUS PTHREAD_CANCEL_ASYNCHRONOUS
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};
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#define PTHREAD_CANCELED ((void *) -1)
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/* Function for handling threads. */
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/* Create a thread with given attributes ATTR (or default attributes
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if ATTR is NULL), and call function START_ROUTINE with given
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arguments ARG. */
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extern int pthread_create (pthread_t *__restrict __thread1,
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__const pthread_attr_t *__restrict __attr,
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void *(*__start_routine) (void *),
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void *__restrict __arg) __THROW;
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/* Obtain the identifier of the current thread. */
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extern pthread_t pthread_self (void) __THROW;
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/* Compare two thread identifiers. */
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extern int pthread_equal (pthread_t __thread1, pthread_t __thread2) __THROW;
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/* Terminate calling thread. */
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extern void pthread_exit (void *__retval)
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__THROW __attribute__ ((__noreturn__));
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/* Make calling thread wait for termination of the thread TH. The
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exit status of the thread is stored in *THREAD_RETURN, if THREAD_RETURN
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is not NULL. */
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extern int pthread_join (pthread_t __th, void **__thread_return) __THROW;
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/* Indicate that the thread TH is never to be joined with PTHREAD_JOIN.
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The resources of TH will therefore be freed immediately when it
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terminates, instead of waiting for another thread to perform PTHREAD_JOIN
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on it. */
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extern int pthread_detach (pthread_t __th) __THROW;
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/* Functions for handling attributes. */
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/* Initialize thread attribute *ATTR with default attributes
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(detachstate is PTHREAD_JOINABLE, scheduling policy is SCHED_OTHER,
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no user-provided stack). */
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extern int pthread_attr_init (pthread_attr_t *__attr) __THROW;
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/* Destroy thread attribute *ATTR. */
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extern int pthread_attr_destroy (pthread_attr_t *__attr) __THROW;
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/* Set the `detachstate' attribute in *ATTR according to DETACHSTATE. */
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extern int pthread_attr_setdetachstate (pthread_attr_t *__attr,
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int __detachstate) __THROW;
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/* Return in *DETACHSTATE the `detachstate' attribute in *ATTR. */
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extern int pthread_attr_getdetachstate (__const pthread_attr_t *__attr,
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int *__detachstate) __THROW;
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/* Set scheduling parameters (priority, etc) in *ATTR according to PARAM. */
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extern int pthread_attr_setschedparam (pthread_attr_t *__restrict __attr,
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__const struct sched_param *__restrict
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__param) __THROW;
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/* Return in *PARAM the scheduling parameters of *ATTR. */
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extern int pthread_attr_getschedparam (__const pthread_attr_t *__restrict
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__attr,
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struct sched_param *__restrict __param)
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__THROW;
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/* Set scheduling policy in *ATTR according to POLICY. */
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extern int pthread_attr_setschedpolicy (pthread_attr_t *__attr, int __policy)
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__THROW;
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/* Return in *POLICY the scheduling policy of *ATTR. */
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extern int pthread_attr_getschedpolicy (__const pthread_attr_t *__restrict
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__attr, int *__restrict __policy)
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__THROW;
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/* Set scheduling inheritance mode in *ATTR according to INHERIT. */
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extern int pthread_attr_setinheritsched (pthread_attr_t *__attr,
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int __inherit) __THROW;
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/* Return in *INHERIT the scheduling inheritance mode of *ATTR. */
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extern int pthread_attr_getinheritsched (__const pthread_attr_t *__restrict
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__attr, int *__restrict __inherit)
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__THROW;
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/* Set scheduling contention scope in *ATTR according to SCOPE. */
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extern int pthread_attr_setscope (pthread_attr_t *__attr, int __scope)
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__THROW;
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/* Return in *SCOPE the scheduling contention scope of *ATTR. */
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extern int pthread_attr_getscope (__const pthread_attr_t *__restrict __attr,
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int *__restrict __scope) __THROW;
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#ifdef __USE_UNIX98
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/* Set the size of the guard area at the bottom of the thread. */
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extern int pthread_attr_setguardsize (pthread_attr_t *__attr,
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size_t __guardsize) __THROW;
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/* Get the size of the guard area at the bottom of the thread. */
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extern int pthread_attr_getguardsize (__const pthread_attr_t *__restrict
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__attr, size_t *__restrict __guardsize)
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__THROW;
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#endif
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/* Set the starting address of the stack of the thread to be created.
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Depending on whether the stack grows up or down the value must either
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be higher or lower than all the address in the memory block. The
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minimal size of the block must be PTHREAD_STACK_SIZE. */
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extern int pthread_attr_setstackaddr (pthread_attr_t *__attr,
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void *__stackaddr) __THROW;
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/* Return the previously set address for the stack. */
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extern int pthread_attr_getstackaddr (__const pthread_attr_t *__restrict
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__attr, void **__restrict __stackaddr)
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__THROW;
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#ifdef __USE_XOPEN2K
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/* The following two interfaces are intended to replace the last two. They
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require setting the address as well as the size since only setting the
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address will make the implementation on some architectures impossible. */
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extern int pthread_attr_setstack (pthread_attr_t *__attr, void *__stackaddr,
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size_t __stacksize) __THROW;
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/* Return the previously set address for the stack. */
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extern int pthread_attr_getstack (__const pthread_attr_t *__restrict __attr,
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void **__restrict __stackaddr,
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size_t *__restrict __stacksize) __THROW;
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#endif
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/* Add information about the minimum stack size needed for the thread
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to be started. This size must never be less than PTHREAD_STACK_SIZE
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and must also not exceed the system limits. */
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extern int pthread_attr_setstacksize (pthread_attr_t *__attr,
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size_t __stacksize) __THROW;
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/* Return the currently used minimal stack size. */
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extern int pthread_attr_getstacksize (__const pthread_attr_t *__restrict
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__attr, size_t *__restrict __stacksize)
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__THROW;
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#ifdef __USE_GNU
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/* Get thread attributes corresponding to the already running thread TH. */
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extern int pthread_getattr_np (pthread_t __th, pthread_attr_t *__attr) __THROW;
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#endif
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/* Functions for scheduling control. */
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/* Set the scheduling parameters for TARGET_THREAD according to POLICY
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and *PARAM. */
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extern int pthread_setschedparam (pthread_t __target_thread, int __policy,
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__const struct sched_param *__param)
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__THROW;
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/* Return in *POLICY and *PARAM the scheduling parameters for TARGET_THREAD. */
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extern int pthread_getschedparam (pthread_t __target_thread,
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int *__restrict __policy,
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struct sched_param *__restrict __param)
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__THROW;
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#ifdef __USE_UNIX98
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/* Determine level of concurrency. */
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extern int pthread_getconcurrency (void) __THROW;
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/* Set new concurrency level to LEVEL. */
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extern int pthread_setconcurrency (int __level) __THROW;
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#endif
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#ifdef __USE_GNU
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/* Yield the processor to another thread or process.
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This function is similar to the POSIX `sched_yield' function but
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might be differently implemented in the case of a m-on-n thread
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implementation. */
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extern int pthread_yield (void) __THROW;
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#endif
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/* Functions for mutex handling. */
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/* Initialize MUTEX using attributes in *MUTEX_ATTR, or use the
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default values if later is NULL. */
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extern int pthread_mutex_init (pthread_mutex_t *__restrict __mutex,
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__const pthread_mutexattr_t *__restrict
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__mutex_attr) __THROW;
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/* Destroy MUTEX. */
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extern int pthread_mutex_destroy (pthread_mutex_t *__mutex) __THROW;
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/* Try to lock MUTEX. */
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extern int pthread_mutex_trylock (pthread_mutex_t *__mutex) __THROW;
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/* Wait until lock for MUTEX becomes available and lock it. */
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extern int pthread_mutex_lock (pthread_mutex_t *__mutex) __THROW;
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#ifdef __USE_XOPEN2K
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/* Wait until lock becomes available, or specified time passes. */
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extern int pthread_mutex_timedlock (pthread_mutex_t *__restrict __mutex,
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__const struct timespec *__restrict
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__abstime) __THROW;
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#endif
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/* Unlock MUTEX. */
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extern int pthread_mutex_unlock (pthread_mutex_t *__mutex) __THROW;
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/* Functions for handling mutex attributes. */
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/* Initialize mutex attribute object ATTR with default attributes
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(kind is PTHREAD_MUTEX_TIMED_NP). */
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extern int pthread_mutexattr_init (pthread_mutexattr_t *__attr) __THROW;
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/* Destroy mutex attribute object ATTR. */
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extern int pthread_mutexattr_destroy (pthread_mutexattr_t *__attr) __THROW;
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/* Get the process-shared flag of the mutex attribute ATTR. */
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extern int pthread_mutexattr_getpshared (__const pthread_mutexattr_t *
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__restrict __attr,
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int *__restrict __pshared) __THROW;
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/* Set the process-shared flag of the mutex attribute ATTR. */
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extern int pthread_mutexattr_setpshared (pthread_mutexattr_t *__attr,
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int __pshared) __THROW;
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#ifdef __USE_UNIX98
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/* Set the mutex kind attribute in *ATTR to KIND (either PTHREAD_MUTEX_NORMAL,
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PTHREAD_MUTEX_RECURSIVE, PTHREAD_MUTEX_ERRORCHECK, or
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PTHREAD_MUTEX_DEFAULT). */
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extern int pthread_mutexattr_settype (pthread_mutexattr_t *__attr, int __kind)
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__THROW;
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/* Return in *KIND the mutex kind attribute in *ATTR. */
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extern int pthread_mutexattr_gettype (__const pthread_mutexattr_t *__restrict
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__attr, int *__restrict __kind) __THROW;
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#endif
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/* Functions for handling conditional variables. */
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/* Initialize condition variable COND using attributes ATTR, or use
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the default values if later is NULL. */
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extern int pthread_cond_init (pthread_cond_t *__restrict __cond,
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__const pthread_condattr_t *__restrict
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__cond_attr) __THROW;
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/* Destroy condition variable COND. */
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extern int pthread_cond_destroy (pthread_cond_t *__cond) __THROW;
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/* Wake up one thread waiting for condition variable COND. */
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extern int pthread_cond_signal (pthread_cond_t *__cond) __THROW;
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/* Wake up all threads waiting for condition variables COND. */
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extern int pthread_cond_broadcast (pthread_cond_t *__cond) __THROW;
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/* Wait for condition variable COND to be signaled or broadcast.
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MUTEX is assumed to be locked before. */
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extern int pthread_cond_wait (pthread_cond_t *__restrict __cond,
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pthread_mutex_t *__restrict __mutex) __THROW;
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/* Wait for condition variable COND to be signaled or broadcast until
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ABSTIME. MUTEX is assumed to be locked before. ABSTIME is an
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absolute time specification; zero is the beginning of the epoch
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(00:00:00 GMT, January 1, 1970). */
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extern int pthread_cond_timedwait (pthread_cond_t *__restrict __cond,
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pthread_mutex_t *__restrict __mutex,
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__const struct timespec *__restrict
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__abstime) __THROW;
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/* Functions for handling condition variable attributes. */
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/* Initialize condition variable attribute ATTR. */
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extern int pthread_condattr_init (pthread_condattr_t *__attr) __THROW;
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/* Destroy condition variable attribute ATTR. */
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extern int pthread_condattr_destroy (pthread_condattr_t *__attr) __THROW;
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/* Get the process-shared flag of the condition variable attribute ATTR. */
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extern int pthread_condattr_getpshared (__const pthread_condattr_t *
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__restrict __attr,
|
||||
int *__restrict __pshared) __THROW;
|
||||
|
||||
/* Set the process-shared flag of the condition variable attribute ATTR. */
|
||||
extern int pthread_condattr_setpshared (pthread_condattr_t *__attr,
|
||||
int __pshared) __THROW;
|
||||
|
||||
|
||||
#ifdef __USE_UNIX98
|
||||
/* Functions for handling read-write locks. */
|
||||
|
||||
/* Initialize read-write lock RWLOCK using attributes ATTR, or use
|
||||
the default values if later is NULL. */
|
||||
extern int pthread_rwlock_init (pthread_rwlock_t *__restrict __rwlock,
|
||||
__const pthread_rwlockattr_t *__restrict
|
||||
__attr) __THROW;
|
||||
|
||||
/* Destroy read-write lock RWLOCK. */
|
||||
extern int pthread_rwlock_destroy (pthread_rwlock_t *__rwlock) __THROW;
|
||||
|
||||
/* Acquire read lock for RWLOCK. */
|
||||
extern int pthread_rwlock_rdlock (pthread_rwlock_t *__rwlock) __THROW;
|
||||
|
||||
/* Try to acquire read lock for RWLOCK. */
|
||||
extern int pthread_rwlock_tryrdlock (pthread_rwlock_t *__rwlock) __THROW;
|
||||
|
||||
#ifdef __USE_XOPEN2K
|
||||
/* Try to acquire read lock for RWLOCK or return after specfied time. */
|
||||
extern int pthread_rwlock_timedrdlock (pthread_rwlock_t *__restrict __rwlock,
|
||||
__const struct timespec *__restrict
|
||||
__abstime) __THROW;
|
||||
#endif
|
||||
|
||||
/* Acquire write lock for RWLOCK. */
|
||||
extern int pthread_rwlock_wrlock (pthread_rwlock_t *__rwlock) __THROW;
|
||||
|
||||
/* Try to acquire write lock for RWLOCK. */
|
||||
extern int pthread_rwlock_trywrlock (pthread_rwlock_t *__rwlock) __THROW;
|
||||
|
||||
#ifdef __USE_XOPEN2K
|
||||
/* Try to acquire write lock for RWLOCK or return after specfied time. */
|
||||
extern int pthread_rwlock_timedwrlock (pthread_rwlock_t *__restrict __rwlock,
|
||||
__const struct timespec *__restrict
|
||||
__abstime) __THROW;
|
||||
#endif
|
||||
|
||||
/* Unlock RWLOCK. */
|
||||
extern int pthread_rwlock_unlock (pthread_rwlock_t *__rwlock) __THROW;
|
||||
|
||||
|
||||
/* Functions for handling read-write lock attributes. */
|
||||
|
||||
/* Initialize attribute object ATTR with default values. */
|
||||
extern int pthread_rwlockattr_init (pthread_rwlockattr_t *__attr) __THROW;
|
||||
|
||||
/* Destroy attribute object ATTR. */
|
||||
extern int pthread_rwlockattr_destroy (pthread_rwlockattr_t *__attr) __THROW;
|
||||
|
||||
/* Return current setting of process-shared attribute of ATTR in PSHARED. */
|
||||
extern int pthread_rwlockattr_getpshared (__const pthread_rwlockattr_t *
|
||||
__restrict __attr,
|
||||
int *__restrict __pshared) __THROW;
|
||||
|
||||
/* Set process-shared attribute of ATTR to PSHARED. */
|
||||
extern int pthread_rwlockattr_setpshared (pthread_rwlockattr_t *__attr,
|
||||
int __pshared) __THROW;
|
||||
|
||||
/* Return current setting of reader/writer preference. */
|
||||
extern int pthread_rwlockattr_getkind_np (__const pthread_rwlockattr_t *__attr,
|
||||
int *__pref) __THROW;
|
||||
|
||||
/* Set reader/write preference. */
|
||||
extern int pthread_rwlockattr_setkind_np (pthread_rwlockattr_t *__attr,
|
||||
int __pref) __THROW;
|
||||
#endif
|
||||
|
||||
#ifdef __USE_XOPEN2K
|
||||
/* The IEEE Std. 1003.1j-2000 introduces functions to implement
|
||||
spinlocks. */
|
||||
|
||||
/* Initialize the spinlock LOCK. If PSHARED is nonzero the spinlock can
|
||||
be shared between different processes. */
|
||||
extern int pthread_spin_init (pthread_spinlock_t *__lock, int __pshared)
|
||||
__THROW;
|
||||
|
||||
/* Destroy the spinlock LOCK. */
|
||||
extern int pthread_spin_destroy (pthread_spinlock_t *__lock) __THROW;
|
||||
|
||||
/* Wait until spinlock LOCK is retrieved. */
|
||||
extern int pthread_spin_lock (pthread_spinlock_t *__lock) __THROW;
|
||||
|
||||
/* Try to lock spinlock LOCK. */
|
||||
extern int pthread_spin_trylock (pthread_spinlock_t *__lock) __THROW;
|
||||
|
||||
/* Release spinlock LOCK. */
|
||||
extern int pthread_spin_unlock (pthread_spinlock_t *__lock) __THROW;
|
||||
|
||||
|
||||
/* Barriers are a also a new feature in 1003.1j-2000. */
|
||||
|
||||
extern int pthread_barrier_init (pthread_barrier_t *__restrict __barrier,
|
||||
__const pthread_barrierattr_t *__restrict
|
||||
__attr, unsigned int __count) __THROW;
|
||||
|
||||
extern int pthread_barrier_destroy (pthread_barrier_t *__barrier) __THROW;
|
||||
|
||||
extern int pthread_barrierattr_init (pthread_barrierattr_t *__attr) __THROW;
|
||||
|
||||
extern int pthread_barrierattr_destroy (pthread_barrierattr_t *__attr) __THROW;
|
||||
|
||||
extern int pthread_barrierattr_getpshared (__const pthread_barrierattr_t *
|
||||
__restrict __attr,
|
||||
int *__restrict __pshared) __THROW;
|
||||
|
||||
extern int pthread_barrierattr_setpshared (pthread_barrierattr_t *__attr,
|
||||
int __pshared) __THROW;
|
||||
|
||||
extern int pthread_barrier_wait (pthread_barrier_t *__barrier) __THROW;
|
||||
#endif
|
||||
|
||||
|
||||
/* Functions for handling thread-specific data. */
|
||||
|
||||
/* Create a key value identifying a location in the thread-specific
|
||||
data area. Each thread maintains a distinct thread-specific data
|
||||
area. DESTR_FUNCTION, if non-NULL, is called with the value
|
||||
associated to that key when the key is destroyed.
|
||||
DESTR_FUNCTION is not called if the value associated is NULL when
|
||||
the key is destroyed. */
|
||||
extern int pthread_key_create (pthread_key_t *__key,
|
||||
void (*__destr_function) (void *)) __THROW;
|
||||
|
||||
/* Destroy KEY. */
|
||||
extern int pthread_key_delete (pthread_key_t __key) __THROW;
|
||||
|
||||
/* Store POINTER in the thread-specific data slot identified by KEY. */
|
||||
extern int pthread_setspecific (pthread_key_t __key,
|
||||
__const void *__pointer) __THROW;
|
||||
|
||||
/* Return current value of the thread-specific data slot identified by KEY. */
|
||||
extern void *pthread_getspecific (pthread_key_t __key) __THROW;
|
||||
|
||||
|
||||
/* Functions for handling initialization. */
|
||||
|
||||
/* Guarantee that the initialization function INIT_ROUTINE will be called
|
||||
only once, even if pthread_once is executed several times with the
|
||||
same ONCE_CONTROL argument. ONCE_CONTROL must point to a static or
|
||||
extern variable initialized to PTHREAD_ONCE_INIT. */
|
||||
extern int pthread_once (pthread_once_t *__once_control,
|
||||
void (*__init_routine) (void)) __THROW;
|
||||
|
||||
|
||||
/* Functions for handling cancellation. */
|
||||
|
||||
/* Set cancelability state of current thread to STATE, returning old
|
||||
state in *OLDSTATE if OLDSTATE is not NULL. */
|
||||
extern int pthread_setcancelstate (int __state, int *__oldstate) __THROW;
|
||||
|
||||
/* Set cancellation state of current thread to TYPE, returning the old
|
||||
type in *OLDTYPE if OLDTYPE is not NULL. */
|
||||
extern int pthread_setcanceltype (int __type, int *__oldtype) __THROW;
|
||||
|
||||
/* Cancel THREAD immediately or at the next possibility. */
|
||||
extern int pthread_cancel (pthread_t __thread1) __THROW;
|
||||
|
||||
/* Test for pending cancellation for the current thread and terminate
|
||||
the thread as per pthread_exit(PTHREAD_CANCELED) if it has been
|
||||
cancelled. */
|
||||
extern void pthread_testcancel (void) __THROW;
|
||||
|
||||
|
||||
/* Install a cleanup handler: ROUTINE will be called with arguments ARG
|
||||
when the thread is cancelled or calls pthread_exit. ROUTINE will also
|
||||
be called with arguments ARG when the matching pthread_cleanup_pop
|
||||
is executed with non-zero EXECUTE argument.
|
||||
pthread_cleanup_push and pthread_cleanup_pop are macros and must always
|
||||
be used in matching pairs at the same nesting level of braces. */
|
||||
|
||||
#define pthread_cleanup_push(routine,arg) \
|
||||
{ struct _pthread_cleanup_buffer _buffer; \
|
||||
_pthread_cleanup_push (&_buffer, (routine), (arg));
|
||||
|
||||
extern void _pthread_cleanup_push (struct _pthread_cleanup_buffer *__buffer,
|
||||
void (*__routine) (void *),
|
||||
void *__arg) __THROW;
|
||||
|
||||
/* Remove a cleanup handler installed by the matching pthread_cleanup_push.
|
||||
If EXECUTE is non-zero, the handler function is called. */
|
||||
|
||||
#define pthread_cleanup_pop(execute) \
|
||||
_pthread_cleanup_pop (&_buffer, (execute)); }
|
||||
|
||||
extern void _pthread_cleanup_pop (struct _pthread_cleanup_buffer *__buffer,
|
||||
int __execute) __THROW;
|
||||
|
||||
/* Install a cleanup handler as pthread_cleanup_push does, but also
|
||||
saves the current cancellation type and set it to deferred cancellation. */
|
||||
|
||||
#ifdef __USE_GNU
|
||||
# define pthread_cleanup_push_defer_np(routine,arg) \
|
||||
{ struct _pthread_cleanup_buffer _buffer; \
|
||||
_pthread_cleanup_push_defer (&_buffer, (routine), (arg));
|
||||
|
||||
extern void _pthread_cleanup_push_defer (struct _pthread_cleanup_buffer *__buffer,
|
||||
void (*__routine) (void *),
|
||||
void *__arg) __THROW;
|
||||
|
||||
/* Remove a cleanup handler as pthread_cleanup_pop does, but also
|
||||
restores the cancellation type that was in effect when the matching
|
||||
pthread_cleanup_push_defer was called. */
|
||||
|
||||
# define pthread_cleanup_pop_restore_np(execute) \
|
||||
_pthread_cleanup_pop_restore (&_buffer, (execute)); }
|
||||
|
||||
extern void _pthread_cleanup_pop_restore (struct _pthread_cleanup_buffer *__buffer,
|
||||
int __execute) __THROW;
|
||||
#endif
|
||||
|
||||
|
||||
#ifdef __USE_XOPEN2K
|
||||
/* Get ID of CPU-time clock for thread THREAD_ID. */
|
||||
extern int pthread_getcpuclockid (pthread_t __thread_id,
|
||||
clockid_t *__clock_id) __THROW;
|
||||
#endif
|
||||
|
||||
|
||||
/* Functions for handling signals. */
|
||||
#include <bits/sigthread.h>
|
||||
|
||||
|
||||
/* Functions for handling process creation and process execution. */
|
||||
|
||||
/* Install handlers to be called when a new process is created with FORK.
|
||||
The PREPARE handler is called in the parent process just before performing
|
||||
FORK. The PARENT handler is called in the parent process just after FORK.
|
||||
The CHILD handler is called in the child process. Each of the three
|
||||
handlers can be NULL, meaning that no handler needs to be called at that
|
||||
point.
|
||||
PTHREAD_ATFORK can be called several times, in which case the PREPARE
|
||||
handlers are called in LIFO order (last added with PTHREAD_ATFORK,
|
||||
first called before FORK), and the PARENT and CHILD handlers are called
|
||||
in FIFO (first added, first called). */
|
||||
|
||||
extern int pthread_atfork (void (*__prepare) (void),
|
||||
void (*__parent) (void),
|
||||
void (*__child) (void)) __THROW;
|
||||
|
||||
/* Terminate all threads in the program except the calling process.
|
||||
Should be called just before invoking one of the exec*() functions. */
|
||||
|
||||
extern void pthread_kill_other_threads_np (void) __THROW;
|
||||
|
||||
__END_DECLS
|
||||
|
||||
#endif /* pthread.h */
|
||||
Loading…
Reference in New Issue