9ad4b64459
to make it work, turnstile like mechanism to support priority propagating and other realtime scheduling options in kernel should be available to userland mutex, for the moment, I just want to make libthr be simple and efficient thread library. Discussed with: deischen, julian
827 lines
23 KiB
C
827 lines
23 KiB
C
/*
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* Copyright (C) 2005 Daniel M. Eischen <deischen@freebsd.org>
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* Copyright (c) 2005 David Xu <davidxu@freebsd.org>
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* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>.
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*
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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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* 1. Redistributions of source code must retain the above copyright
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* notice unmodified, this list of conditions, and the following
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* disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $FreeBSD$
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*/
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#ifndef _THR_PRIVATE_H
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#define _THR_PRIVATE_H
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/*
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* Include files.
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*/
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sys/cdefs.h>
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#include <sys/queue.h>
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#include <machine/atomic.h>
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#include <errno.h>
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#include <limits.h>
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#include <signal.h>
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#include <stddef.h>
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#include <stdio.h>
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#include <sched.h>
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#include <unistd.h>
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#include <ucontext.h>
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#include <sys/thr.h>
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#include <pthread.h>
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#ifndef __hidden
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#define __hidden __attribute__((visibility("hidden")))
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#endif
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#include "pthread_md.h"
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#include "thr_umtx.h"
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#include "thread_db.h"
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typedef TAILQ_HEAD(pthreadlist, pthread) pthreadlist;
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typedef TAILQ_HEAD(atfork_head, pthread_atfork) atfork_head;
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/* Signal to do cancellation */
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#define SIGCANCEL 32
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/*
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* Kernel fatal error handler macro.
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*/
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#define PANIC(string) _thread_exit(__FILE__,__LINE__,string)
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/* Output debug messages like this: */
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#define stdout_debug(args...) _thread_printf(STDOUT_FILENO, ##args)
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#define stderr_debug(args...) _thread_printf(STDOUT_FILENO, ##args)
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#ifdef _PTHREADS_INVARIANTS
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#define THR_ASSERT(cond, msg) do { \
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if (__predict_false(!(cond))) \
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PANIC(msg); \
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} while (0)
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#else
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#define THR_ASSERT(cond, msg)
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#endif
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#ifdef PIC
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# define STATIC_LIB_REQUIRE(name)
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#else
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# define STATIC_LIB_REQUIRE(name) __asm (".globl " #name)
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#endif
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#define TIMESPEC_ADD(dst, src, val) \
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do { \
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(dst)->tv_sec = (src)->tv_sec + (val)->tv_sec; \
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(dst)->tv_nsec = (src)->tv_nsec + (val)->tv_nsec; \
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if ((dst)->tv_nsec >= 1000000000) { \
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(dst)->tv_sec++; \
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(dst)->tv_nsec -= 1000000000; \
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} \
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} while (0)
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#define TIMESPEC_SUB(dst, src, val) \
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do { \
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(dst)->tv_sec = (src)->tv_sec - (val)->tv_sec; \
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(dst)->tv_nsec = (src)->tv_nsec - (val)->tv_nsec; \
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if ((dst)->tv_nsec < 0) { \
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(dst)->tv_sec--; \
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(dst)->tv_nsec += 1000000000; \
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} \
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} while (0)
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struct pthread_mutex {
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/*
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* Lock for accesses to this structure.
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*/
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volatile umtx_t m_lock;
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enum pthread_mutextype m_type;
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int m_protocol;
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TAILQ_HEAD(mutex_head, pthread) m_queue;
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struct pthread *m_owner;
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long m_flags;
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int m_count;
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int m_refcount;
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/*
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* Used for priority inheritence and protection.
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*
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* m_prio - For priority inheritence, the highest active
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* priority (threads locking the mutex inherit
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* this priority). For priority protection, the
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* ceiling priority of this mutex.
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* m_saved_prio - mutex owners inherited priority before
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* taking the mutex, restored when the owner
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* unlocks the mutex.
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*/
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int m_prio;
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int m_saved_prio;
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/*
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* Link for list of all mutexes a thread currently owns.
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*/
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TAILQ_ENTRY(pthread_mutex) m_qe;
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};
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/*
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* Flags for mutexes.
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*/
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#define MUTEX_FLAGS_PRIVATE 0x01
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#define MUTEX_FLAGS_INITED 0x02
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#define MUTEX_FLAGS_BUSY 0x04
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struct pthread_mutex_attr {
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enum pthread_mutextype m_type;
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int m_protocol;
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int m_ceiling;
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long m_flags;
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};
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#define PTHREAD_MUTEXATTR_STATIC_INITIALIZER \
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{ PTHREAD_MUTEX_DEFAULT, PTHREAD_PRIO_NONE, 0, MUTEX_FLAGS_PRIVATE }
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struct pthread_cond {
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/*
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* Lock for accesses to this structure.
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*/
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volatile umtx_t c_lock;
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volatile umtx_t c_seqno;
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volatile int c_waiters;
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volatile int c_wakeups;
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int c_pshared;
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int c_clockid;
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};
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struct pthread_cond_attr {
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int c_pshared;
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int c_clockid;
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};
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struct pthread_barrier {
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volatile umtx_t b_lock;
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volatile umtx_t b_cycle;
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volatile int b_count;
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volatile int b_waiters;
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};
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struct pthread_barrierattr {
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int pshared;
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};
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struct pthread_spinlock {
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volatile umtx_t s_lock;
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};
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/*
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* Flags for condition variables.
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*/
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#define COND_FLAGS_PRIVATE 0x01
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#define COND_FLAGS_INITED 0x02
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#define COND_FLAGS_BUSY 0x04
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/*
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* Cleanup definitions.
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*/
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struct pthread_cleanup {
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struct pthread_cleanup *next;
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void (*routine)();
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void *routine_arg;
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int onstack;
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};
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#define THR_CLEANUP_PUSH(td, func, arg) { \
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struct pthread_cleanup __cup; \
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\
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__cup.routine = func; \
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__cup.routine_arg = arg; \
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__cup.onstack = 1; \
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__cup.next = (td)->cleanup; \
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(td)->cleanup = &__cup;
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#define THR_CLEANUP_POP(td, exec) \
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(td)->cleanup = __cup.next; \
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if ((exec) != 0) \
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__cup.routine(__cup.routine_arg); \
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}
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struct pthread_atfork {
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TAILQ_ENTRY(pthread_atfork) qe;
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void (*prepare)(void);
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void (*parent)(void);
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void (*child)(void);
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};
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struct pthread_attr {
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int sched_policy;
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int sched_inherit;
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int sched_interval;
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int prio;
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int suspend;
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#define THR_STACK_USER 0x100 /* 0xFF reserved for <pthread.h> */
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int flags;
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void *arg_attr;
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void (*cleanup_attr)();
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void *stackaddr_attr;
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size_t stacksize_attr;
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size_t guardsize_attr;
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};
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/*
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* Thread creation state attributes.
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*/
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#define THR_CREATE_RUNNING 0
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#define THR_CREATE_SUSPENDED 1
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/*
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* Miscellaneous definitions.
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*/
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#define THR_STACK_DEFAULT (sizeof(void *) / 4 * 1024 * 1024)
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/*
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* Maximum size of initial thread's stack. This perhaps deserves to be larger
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* than the stacks of other threads, since many applications are likely to run
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* almost entirely on this stack.
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*/
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#define THR_STACK_INITIAL (THR_STACK_DEFAULT * 2)
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/*
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* Define the different priority ranges. All applications have thread
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* priorities constrained within 0-31. The threads library raises the
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* priority when delivering signals in order to ensure that signal
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* delivery happens (from the POSIX spec) "as soon as possible".
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* In the future, the threads library will also be able to map specific
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* threads into real-time (cooperating) processes or kernel threads.
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* The RT and SIGNAL priorities will be used internally and added to
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* thread base priorities so that the scheduling queue can handle both
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* normal and RT priority threads with and without signal handling.
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*
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* The approach taken is that, within each class, signal delivery
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* always has priority over thread execution.
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*/
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#define THR_DEFAULT_PRIORITY 15
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#define THR_MIN_PRIORITY 0
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#define THR_MAX_PRIORITY 31 /* 0x1F */
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#define THR_SIGNAL_PRIORITY 32 /* 0x20 */
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#define THR_RT_PRIORITY 64 /* 0x40 */
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#define THR_FIRST_PRIORITY THR_MIN_PRIORITY
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#define THR_LAST_PRIORITY \
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(THR_MAX_PRIORITY + THR_SIGNAL_PRIORITY + THR_RT_PRIORITY)
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#define THR_BASE_PRIORITY(prio) ((prio) & THR_MAX_PRIORITY)
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/*
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* Time slice period in microseconds.
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*/
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#define TIMESLICE_USEC 20000
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struct pthread_rwlockattr {
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int pshared;
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};
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struct pthread_rwlock {
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pthread_mutex_t lock; /* monitor lock */
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pthread_cond_t read_signal;
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pthread_cond_t write_signal;
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int state; /* 0 = idle >0 = # of readers -1 = writer */
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int blocked_writers;
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};
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/*
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* Thread states.
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*/
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enum pthread_state {
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PS_RUNNING,
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PS_DEAD
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};
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struct pthread_specific_elem {
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const void *data;
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int seqno;
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};
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struct pthread_key {
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volatile int allocated;
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volatile int count;
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int seqno;
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void (*destructor)(void *);
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};
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/*
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* Thread structure.
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*/
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struct pthread {
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/* Kernel thread id. */
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long tid;
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#define TID_TERMINATED 1
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/*
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* Lock for accesses to this thread structure.
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*/
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umtx_t lock;
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/* Internal condition variable cycle number. */
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umtx_t cycle;
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/* How many low level locks the thread held. */
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int locklevel;
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/*
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* Set to non-zero when this thread has entered a critical
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* region. We allow for recursive entries into critical regions.
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*/
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int critical_count;
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/* Signal blocked counter. */
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int sigblock;
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/* Queue entry for list of all threads. */
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TAILQ_ENTRY(pthread) tle; /* link for all threads in process */
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/* Queue entry for GC lists. */
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TAILQ_ENTRY(pthread) gcle;
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/* Hash queue entry. */
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LIST_ENTRY(pthread) hle;
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/* Threads reference count. */
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int refcount;
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/*
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* Thread start routine, argument, stack pointer and thread
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* attributes.
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*/
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void *(*start_routine)(void *);
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void *arg;
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struct pthread_attr attr;
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/*
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* Cancelability flags
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*/
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#define THR_CANCEL_DISABLE 0x0001
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#define THR_CANCEL_EXITING 0x0002
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#define THR_CANCEL_AT_POINT 0x0004
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#define THR_CANCEL_NEEDED 0x0008
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#define SHOULD_CANCEL(val) \
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(((val) & (THR_CANCEL_DISABLE | THR_CANCEL_EXITING | \
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THR_CANCEL_NEEDED)) == THR_CANCEL_NEEDED)
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#define SHOULD_ASYNC_CANCEL(val) \
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(((val) & (THR_CANCEL_DISABLE | THR_CANCEL_EXITING | \
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THR_CANCEL_NEEDED | THR_CANCEL_AT_POINT)) == \
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(THR_CANCEL_NEEDED | THR_CANCEL_AT_POINT))
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int cancelflags;
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/* Thread temporary signal mask. */
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sigset_t sigmask;
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/* Thread state: */
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umtx_t state;
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/*
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* Error variable used instead of errno. The function __error()
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* returns a pointer to this.
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*/
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int error;
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/*
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* The joiner is the thread that is joining to this thread. The
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* join status keeps track of a join operation to another thread.
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*/
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struct pthread *joiner;
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/*
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* The current thread can belong to a priority mutex queue.
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* This is the synchronization queue link.
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*/
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TAILQ_ENTRY(pthread) sqe;
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/* Miscellaneous flags; only set with scheduling lock held. */
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int flags;
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#define THR_FLAGS_PRIVATE 0x0001
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#define THR_FLAGS_NEED_SUSPEND 0x0002 /* thread should be suspended */
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#define THR_FLAGS_SUSPENDED 0x0004 /* thread is suspended */
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/* Thread list flags; only set with thread list lock held. */
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int tlflags;
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#define TLFLAGS_GC_SAFE 0x0001 /* thread safe for cleaning */
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#define TLFLAGS_IN_TDLIST 0x0002 /* thread in all thread list */
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#define TLFLAGS_IN_GCLIST 0x0004 /* thread in gc list */
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#define TLFLAGS_DETACHED 0x0008 /* thread is detached */
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/*
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* Base priority is the user setable and retrievable priority
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* of the thread. It is only affected by explicit calls to
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* set thread priority and upon thread creation via a thread
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* attribute or default priority.
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*/
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char base_priority;
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/*
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* Inherited priority is the priority a thread inherits by
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* taking a priority inheritence or protection mutex. It
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* is not affected by base priority changes. Inherited
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* priority defaults to and remains 0 until a mutex is taken
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* that is being waited on by any other thread whose priority
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* is non-zero.
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*/
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char inherited_priority;
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/*
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* Active priority is always the maximum of the threads base
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* priority and inherited priority. When there is a change
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* in either the base or inherited priority, the active
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* priority must be recalculated.
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*/
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char active_priority;
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/* Queue of currently owned simple type mutexes. */
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TAILQ_HEAD(, pthread_mutex) mutexq;
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void *ret;
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struct pthread_specific_elem *specific;
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int specific_data_count;
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/* Number rwlocks rdlocks held. */
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int rdlock_count;
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/*
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* Current locks bitmap for rtld. */
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int rtld_bits;
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/* Thread control block */
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struct tcb *tcb;
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/* Cleanup handlers Link List */
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struct pthread_cleanup *cleanup;
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/*
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* Magic value to help recognize a valid thread structure
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* from an invalid one:
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*/
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#define THR_MAGIC ((u_int32_t) 0xd09ba115)
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u_int32_t magic;
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/* Enable event reporting */
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int report_events;
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/* Event mask */
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int event_mask;
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/* Event */
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td_event_msg_t event_buf;
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};
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#define THR_IN_CRITICAL(thrd) \
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(((thrd)->locklevel > 0) || \
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((thrd)->critical_count > 0))
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|
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#define THR_CRITICAL_ENTER(thrd) \
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(thrd)->critical_count++
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#define THR_CRITICAL_LEAVE(thrd) \
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(thrd)->critical_count--; \
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_thr_ast(thrd);
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#define THR_UMTX_TRYLOCK(thrd, lck) \
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_thr_umtx_trylock((lck), (thrd)->tid)
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#define THR_UMTX_LOCK(thrd, lck) \
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_thr_umtx_lock((lck), (thrd)->tid)
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#define THR_UMTX_TIMEDLOCK(thrd, lck, timo) \
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_thr_umtx_timedlock((lck), (thrd)->tid, (timo))
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#define THR_UMTX_UNLOCK(thrd, lck) \
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_thr_umtx_unlock((lck), (thrd)->tid)
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#define THR_LOCK_ACQUIRE(thrd, lck) \
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do { \
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(thrd)->locklevel++; \
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_thr_umtx_lock(lck, (thrd)->tid); \
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} while (0)
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|
|
#ifdef _PTHREADS_INVARIANTS
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|
#define THR_ASSERT_LOCKLEVEL(thrd) \
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do { \
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if (__predict_false((thrd)->locklevel <= 0)) \
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_thr_assert_lock_level(); \
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} while (0)
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#else
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#define THR_ASSERT_LOCKLEVEL(thrd)
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#endif
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|
|
#define THR_LOCK_RELEASE(thrd, lck) \
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do { \
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THR_ASSERT_LOCKLEVEL(thrd); \
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_thr_umtx_unlock((lck), (thrd)->tid); \
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(thrd)->locklevel--; \
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_thr_ast(thrd); \
|
|
} while (0)
|
|
|
|
#define THR_LOCK(curthrd) THR_LOCK_ACQUIRE(curthrd, &(curthrd)->lock)
|
|
#define THR_UNLOCK(curthrd) THR_LOCK_RELEASE(curthrd, &(curthrd)->lock)
|
|
#define THR_THREAD_LOCK(curthrd, thr) THR_LOCK_ACQUIRE(curthrd, &(thr)->lock)
|
|
#define THR_THREAD_UNLOCK(curthrd, thr) THR_LOCK_RELEASE(curthrd, &(thr)->lock)
|
|
|
|
#define THREAD_LIST_LOCK(curthrd) \
|
|
do { \
|
|
THR_LOCK_ACQUIRE((curthrd), &_thr_list_lock); \
|
|
} while (0)
|
|
|
|
#define THREAD_LIST_UNLOCK(curthrd) \
|
|
do { \
|
|
THR_LOCK_RELEASE((curthrd), &_thr_list_lock); \
|
|
} while (0)
|
|
|
|
/*
|
|
* Macros to insert/remove threads to the all thread list and
|
|
* the gc list.
|
|
*/
|
|
#define THR_LIST_ADD(thrd) do { \
|
|
if (((thrd)->tlflags & TLFLAGS_IN_TDLIST) == 0) { \
|
|
TAILQ_INSERT_HEAD(&_thread_list, thrd, tle); \
|
|
_thr_hash_add(thrd); \
|
|
(thrd)->tlflags |= TLFLAGS_IN_TDLIST; \
|
|
} \
|
|
} while (0)
|
|
#define THR_LIST_REMOVE(thrd) do { \
|
|
if (((thrd)->tlflags & TLFLAGS_IN_TDLIST) != 0) { \
|
|
TAILQ_REMOVE(&_thread_list, thrd, tle); \
|
|
_thr_hash_remove(thrd); \
|
|
(thrd)->tlflags &= ~TLFLAGS_IN_TDLIST; \
|
|
} \
|
|
} while (0)
|
|
#define THR_GCLIST_ADD(thrd) do { \
|
|
if (((thrd)->tlflags & TLFLAGS_IN_GCLIST) == 0) { \
|
|
TAILQ_INSERT_HEAD(&_thread_gc_list, thrd, gcle);\
|
|
(thrd)->tlflags |= TLFLAGS_IN_GCLIST; \
|
|
_gc_count++; \
|
|
} \
|
|
} while (0)
|
|
#define THR_GCLIST_REMOVE(thrd) do { \
|
|
if (((thrd)->tlflags & TLFLAGS_IN_GCLIST) != 0) { \
|
|
TAILQ_REMOVE(&_thread_gc_list, thrd, gcle); \
|
|
(thrd)->tlflags &= ~TLFLAGS_IN_GCLIST; \
|
|
_gc_count--; \
|
|
} \
|
|
} while (0)
|
|
|
|
#define GC_NEEDED() (_gc_count >= 5)
|
|
|
|
#define SHOULD_REPORT_EVENT(curthr, e) \
|
|
(curthr->report_events && \
|
|
(((curthr)->event_mask | _thread_event_mask ) & e) != 0)
|
|
|
|
extern int __isthreaded;
|
|
|
|
/*
|
|
* Global variables for the pthread kernel.
|
|
*/
|
|
|
|
extern void *_usrstack __hidden;
|
|
extern struct pthread *_thr_initial __hidden;
|
|
extern int _thr_scope_system __hidden;
|
|
|
|
/* For debugger */
|
|
extern int _libthr_debug;
|
|
extern int _thread_event_mask;
|
|
extern struct pthread *_thread_last_event;
|
|
|
|
/* List of all threads: */
|
|
extern pthreadlist _thread_list;
|
|
|
|
/* List of threads needing GC: */
|
|
extern pthreadlist _thread_gc_list __hidden;
|
|
|
|
extern int _thread_active_threads;
|
|
extern atfork_head _thr_atfork_list __hidden;
|
|
extern umtx_t _thr_atfork_lock __hidden;
|
|
|
|
/* Default thread attributes: */
|
|
extern struct pthread_attr _pthread_attr_default __hidden;
|
|
|
|
/* Default mutex attributes: */
|
|
extern struct pthread_mutex_attr _pthread_mutexattr_default __hidden;
|
|
|
|
/* Default condition variable attributes: */
|
|
extern struct pthread_cond_attr _pthread_condattr_default __hidden;
|
|
|
|
extern pid_t _thr_pid __hidden;
|
|
extern int _thr_guard_default __hidden;
|
|
extern int _thr_stack_default __hidden;
|
|
extern int _thr_stack_initial __hidden;
|
|
extern int _thr_page_size __hidden;
|
|
/* Garbage thread count. */
|
|
extern int _gc_count __hidden;
|
|
|
|
extern umtx_t _mutex_static_lock __hidden;
|
|
extern umtx_t _cond_static_lock __hidden;
|
|
extern umtx_t _rwlock_static_lock __hidden;
|
|
extern umtx_t _keytable_lock __hidden;
|
|
extern umtx_t _thr_list_lock __hidden;
|
|
extern umtx_t _thr_event_lock __hidden;
|
|
|
|
/*
|
|
* Function prototype definitions.
|
|
*/
|
|
__BEGIN_DECLS
|
|
int _thr_setthreaded(int) __hidden;
|
|
int _mutex_cv_lock(pthread_mutex_t *) __hidden;
|
|
int _mutex_cv_unlock(pthread_mutex_t *) __hidden;
|
|
int _mutex_reinit(pthread_mutex_t *) __hidden;
|
|
void _mutex_fork(struct pthread *curthread) __hidden;
|
|
void _mutex_unlock_private(struct pthread *) __hidden;
|
|
void _libpthread_init(struct pthread *) __hidden;
|
|
void *_pthread_getspecific(pthread_key_t);
|
|
int _pthread_cond_init(pthread_cond_t *, const pthread_condattr_t *);
|
|
int _pthread_cond_destroy(pthread_cond_t *);
|
|
int _pthread_cond_wait(pthread_cond_t *, pthread_mutex_t *);
|
|
int _pthread_cond_timedwait(pthread_cond_t *, pthread_mutex_t *,
|
|
const struct timespec *);
|
|
int _pthread_cond_signal(pthread_cond_t *);
|
|
int _pthread_cond_broadcast(pthread_cond_t *);
|
|
int _pthread_create(pthread_t * thread, const pthread_attr_t * attr,
|
|
void *(*start_routine) (void *), void *arg);
|
|
int _pthread_key_create(pthread_key_t *, void (*) (void *));
|
|
int _pthread_key_delete(pthread_key_t);
|
|
int _pthread_mutex_destroy(pthread_mutex_t *);
|
|
int _pthread_mutex_init(pthread_mutex_t *, const pthread_mutexattr_t *);
|
|
int _pthread_mutex_lock(pthread_mutex_t *);
|
|
int _pthread_mutex_trylock(pthread_mutex_t *);
|
|
int _pthread_mutex_unlock(pthread_mutex_t *);
|
|
int _pthread_mutexattr_init(pthread_mutexattr_t *);
|
|
int _pthread_mutexattr_destroy(pthread_mutexattr_t *);
|
|
int _pthread_mutexattr_settype(pthread_mutexattr_t *, int);
|
|
int _pthread_once(pthread_once_t *, void (*) (void));
|
|
int _pthread_rwlock_init(pthread_rwlock_t *, const pthread_rwlockattr_t *);
|
|
int _pthread_rwlock_destroy (pthread_rwlock_t *);
|
|
struct pthread *_pthread_self(void);
|
|
int _pthread_setspecific(pthread_key_t, const void *);
|
|
void _pthread_testcancel(void);
|
|
void _pthread_yield(void);
|
|
void _pthread_cleanup_push(void (*routine) (void *), void *routine_arg);
|
|
void _pthread_cleanup_pop(int execute);
|
|
struct pthread *_thr_alloc(struct pthread *) __hidden;
|
|
void _thread_exit(char *, int, char *) __hidden __dead2;
|
|
void _thr_exit_cleanup(void) __hidden;
|
|
int _thr_ref_add(struct pthread *, struct pthread *, int) __hidden;
|
|
void _thr_ref_delete(struct pthread *, struct pthread *) __hidden;
|
|
void _thr_ref_delete_unlocked(struct pthread *, struct pthread *) __hidden;
|
|
int _thr_find_thread(struct pthread *, struct pthread *, int) __hidden;
|
|
void _thr_rtld_init(void) __hidden;
|
|
void _thr_rtld_fini(void) __hidden;
|
|
int _thr_stack_alloc(struct pthread_attr *) __hidden;
|
|
void _thr_stack_free(struct pthread_attr *) __hidden;
|
|
void _thr_free(struct pthread *, struct pthread *) __hidden;
|
|
void _thr_gc(struct pthread *) __hidden;
|
|
void _thread_cleanupspecific(void) __hidden;
|
|
void _thread_dump_info(void) __hidden;
|
|
void _thread_printf(int, const char *, ...) __hidden;
|
|
void _thr_spinlock_init(void) __hidden;
|
|
int _thr_cancel_enter(struct pthread *) __hidden;
|
|
void _thr_cancel_leave(struct pthread *, int) __hidden;
|
|
void _thr_signal_block(struct pthread *) __hidden;
|
|
void _thr_signal_unblock(struct pthread *) __hidden;
|
|
void _thr_signal_init(void) __hidden;
|
|
void _thr_signal_deinit(void) __hidden;
|
|
int _thr_send_sig(struct pthread *, int sig) __hidden;
|
|
void _thr_list_init(void) __hidden;
|
|
void _thr_hash_add(struct pthread *) __hidden;
|
|
void _thr_hash_remove(struct pthread *) __hidden;
|
|
struct pthread *_thr_hash_find(struct pthread *) __hidden;
|
|
void _thr_link(struct pthread *, struct pthread *) __hidden;
|
|
void _thr_unlink(struct pthread *, struct pthread *) __hidden;
|
|
void _thr_suspend_check(struct pthread *) __hidden;
|
|
void _thr_assert_lock_level(void) __hidden __dead2;
|
|
void _thr_ast(struct pthread *) __hidden;
|
|
void _thr_once_init(void) __hidden;
|
|
void _thr_report_creation(struct pthread *curthread,
|
|
struct pthread *newthread) __hidden;
|
|
void _thr_report_death(struct pthread *curthread) __hidden;
|
|
void _thread_bp_create(void);
|
|
void _thread_bp_death(void);
|
|
|
|
/* #include <sys/aio.h> */
|
|
#ifdef _SYS_AIO_H_
|
|
int __sys_aio_suspend(const struct aiocb * const[], int, const struct timespec *);
|
|
#endif
|
|
|
|
/* #include <fcntl.h> */
|
|
#ifdef _SYS_FCNTL_H_
|
|
int __sys_fcntl(int, int, ...);
|
|
int __sys_open(const char *, int, ...);
|
|
#endif
|
|
|
|
/* #include <sys/ioctl.h> */
|
|
#ifdef _SYS_IOCTL_H_
|
|
int __sys_ioctl(int, unsigned long, ...);
|
|
#endif
|
|
|
|
/* #inclde <sched.h> */
|
|
#ifdef _SCHED_H_
|
|
int __sys_sched_yield(void);
|
|
#endif
|
|
|
|
/* #include <signal.h> */
|
|
#ifdef _SIGNAL_H_
|
|
int __sys_kill(pid_t, int);
|
|
int __sys_sigaction(int, const struct sigaction *, struct sigaction *);
|
|
int __sys_sigpending(sigset_t *);
|
|
int __sys_sigprocmask(int, const sigset_t *, sigset_t *);
|
|
int __sys_sigsuspend(const sigset_t *);
|
|
int __sys_sigreturn(ucontext_t *);
|
|
int __sys_sigaltstack(const struct sigaltstack *, struct sigaltstack *);
|
|
#endif
|
|
|
|
/* #include <sys/socket.h> */
|
|
#ifdef _SYS_SOCKET_H_
|
|
int __sys_accept(int, struct sockaddr *, socklen_t *);
|
|
int __sys_connect(int, const struct sockaddr *, socklen_t);
|
|
ssize_t __sys_recv(int, void *, size_t, int);
|
|
ssize_t __sys_recvfrom(int, void *, size_t, int, struct sockaddr *, socklen_t *);
|
|
ssize_t __sys_recvmsg(int, struct msghdr *, int);
|
|
int __sys_sendfile(int, int, off_t, size_t, struct sf_hdtr *,
|
|
off_t *, int);
|
|
ssize_t __sys_sendmsg(int, const struct msghdr *, int);
|
|
ssize_t __sys_sendto(int, const void *,size_t, int, const struct sockaddr *, socklen_t);
|
|
#endif
|
|
|
|
/* #include <sys/uio.h> */
|
|
#ifdef _SYS_UIO_H_
|
|
ssize_t __sys_readv(int, const struct iovec *, int);
|
|
ssize_t __sys_writev(int, const struct iovec *, int);
|
|
#endif
|
|
|
|
/* #include <time.h> */
|
|
#ifdef _TIME_H_
|
|
int __sys_nanosleep(const struct timespec *, struct timespec *);
|
|
#endif
|
|
|
|
/* #include <unistd.h> */
|
|
#ifdef _UNISTD_H_
|
|
int __sys_close(int);
|
|
int __sys_execve(const char *, char * const *, char * const *);
|
|
int __sys_fork(void);
|
|
int __sys_fsync(int);
|
|
pid_t __sys_getpid(void);
|
|
int __sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
|
|
ssize_t __sys_read(int, void *, size_t);
|
|
ssize_t __sys_write(int, const void *, size_t);
|
|
void __sys_exit(int);
|
|
int __sys_sigwait(const sigset_t *, int *);
|
|
int __sys_sigtimedwait(const sigset_t *, siginfo_t *,
|
|
const struct timespec *);
|
|
int __sys_sigwaitinfo(const sigset_t *set, siginfo_t *info);
|
|
#endif
|
|
|
|
/* #include <poll.h> */
|
|
#ifdef _SYS_POLL_H_
|
|
int __sys_poll(struct pollfd *, unsigned, int);
|
|
#endif
|
|
|
|
/* #include <sys/mman.h> */
|
|
#ifdef _SYS_MMAN_H_
|
|
int __sys_msync(void *, size_t, int);
|
|
#endif
|
|
|
|
static inline int
|
|
_thr_isthreaded(void)
|
|
{
|
|
return (__isthreaded != 0);
|
|
}
|
|
|
|
static inline int
|
|
_thr_is_inited(void)
|
|
{
|
|
return (_thr_initial != NULL);
|
|
}
|
|
|
|
static inline void
|
|
_thr_check_init(void)
|
|
{
|
|
if (_thr_initial == NULL)
|
|
_libpthread_init(NULL);
|
|
}
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* !_THR_PRIVATE_H */
|