c5a6625e3e
32-bit 64-bit main thread 2 MB 4 MB other threads 1 MB 2 MB Approved by: mtm Adapted from: libpthread
960 lines
26 KiB
C
960 lines
26 KiB
C
/*
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* Copyright (c) 1995-1998 John Birrell <jb@cimlogic.com.au>.
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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, this list of conditions and the following 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by John Birrell.
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* 4. Neither the name of the author nor the names of any co-contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY JOHN BIRRELL AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* Private thread definitions for the uthread kernel.
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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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* Evaluate the storage class specifier.
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*/
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#ifdef GLOBAL_PTHREAD_PRIVATE
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#define SCLASS
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#else
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#define SCLASS extern
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#endif
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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/cdefs.h>
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#include <sys/errno.h>
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#include <sys/msg.h>
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#include <sys/time.h>
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <pthread_np.h>
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#include <sched.h>
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#include <signal.h>
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#include <spinlock.h>
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#include <stdio.h>
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#include <ucontext.h>
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#include <unistd.h>
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#if defined(_PTHREADS_INVARIANTS)
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#include <assert.h>
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#endif
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#include <machine/atomic.h>
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#include <sys/thr.h>
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#include <sys/umtx.h>
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#include <vm/vm.h>
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#include <vm/vm_param.h>
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#include <vm/pmap.h>
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#include <vm/vm_map.h>
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#if defined(_PTHREADS_INVARIANTS)
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/*
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* Kernel fatal error handler macro.
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*/
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#define PANIC(string) \
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do { \
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_thread_printf(STDOUT_FILENO, (string)); \
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_thread_printf(STDOUT_FILENO, \
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"\nAbnormal termination, file: %s, line: %d\n", \
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__FILE__, __LINE__); \
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abort(); \
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} while (0)
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#define PTHREAD_ASSERT(cond, msg) do { \
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if (!(cond)) \
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PANIC(msg); \
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} while (0)
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#define PTHREAD_ASSERT_NOT_IN_SYNCQ(thrd) \
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PTHREAD_ASSERT((((thrd)->flags & PTHREAD_FLAGS_IN_SYNCQ) == 0), \
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"Illegal call from signal handler");
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#else /* !_PTHREADS_INVARIANTS */
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#define PANIC(string) _thread_exit(__FILE__, __LINE__, (string))
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#define PTHREAD_ASSERT(cond, msg)
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#define PTHREAD_ASSERT_NOT_IN_SYNCQ(thrd)
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#endif /* _PTHREADS_INVARIANTS */
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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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/*
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* Currently executing thread.
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*/
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#define curthread _get_curthread()
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/*
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* Locking macros
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*/
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#define UMTX_LOCK(m) \
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do { \
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if (umtx_lock((m), curthread->thr_id) != 0) \
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abort(); \
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} while (0)
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#define UMTX_TRYLOCK(m, r) \
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do { \
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(r) = umtx_trylock((m), curthread->thr_id); \
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if ((r) != 0 && (r) != EBUSY) \
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abort(); \
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} while (0)
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#define UMTX_UNLOCK(m) \
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do { \
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if (umtx_unlock((m), curthread->thr_id) != 0) \
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abort(); \
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} while (0)
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#define PTHREAD_LOCK(p) UMTX_LOCK(&(p)->lock)
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#define PTHREAD_UNLOCK(p) UMTX_UNLOCK(&(p)->lock)
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#define PTHREAD_WAKE(ptd) thr_wake((ptd)->thr_id)
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/*
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* TailQ initialization values.
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*/
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#define TAILQ_INITIALIZER { NULL, NULL }
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#define UMTX_INITIALIZER { NULL }
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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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/*
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* Static mutex initialization values.
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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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#define PTHREAD_MUTEX_STATIC_INITIALIZER \
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{ PTHREAD_MUTEXATTR_STATIC_INITIALIZER, UMTX_INITIALIZER, NULL, \
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0, 0, TAILQ_INITIALIZER }
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union pthread_mutex_data {
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void *m_ptr;
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int m_count;
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};
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struct pthread_mutex {
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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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union pthread_mutex_data m_data;
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long m_flags;
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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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* Lock for accesses to this structure.
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*/
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spinlock_t lock;
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};
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struct pthread_spinlock {
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void *s_owner;
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unsigned int s_magic;
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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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/*
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* Condition variable definitions.
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*/
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enum pthread_cond_type {
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COND_TYPE_FAST,
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COND_TYPE_MAX
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};
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struct pthread_cond {
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enum pthread_cond_type c_type;
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TAILQ_HEAD(cond_head, pthread) c_queue;
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pthread_mutex_t c_mutex;
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void *c_data;
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long c_flags;
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int c_seqno;
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/*
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* Lock for accesses to this structure.
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*/
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struct umtx c_lock;
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};
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struct pthread_cond_attr {
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enum pthread_cond_type c_type;
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long c_flags;
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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_INITED 0x01
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/*
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* Static cond initialization values.
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*/
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#define PTHREAD_COND_STATIC_INITIALIZER \
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{ COND_TYPE_FAST, TAILQ_INITIALIZER, NULL, NULL, \
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0, 0, UMTX_INITIALIZER }
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/*
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* Semaphore definitions.
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*/
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struct sem {
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#define SEM_MAGIC ((u_int32_t) 0x09fa4012)
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u_int32_t magic;
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pthread_mutex_t lock;
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pthread_cond_t gtzero;
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u_int32_t count;
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u_int32_t nwaiters;
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};
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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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};
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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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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 PTHREAD_CREATE_RUNNING 0
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#define PTHREAD_CREATE_SUSPENDED 1
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/*
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* Miscellaneous definitions.
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*/
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#define PTHREAD_STACK32_DEFAULT (1 * 1024 * 1024)
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#define PTHREAD_STACK64_DEFAULT (2 * 1024 * 1024)
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/*
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* Size of default red zone at the end of each stack. In actuality, this "red
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* zone" is merely an unmapped region, except in the case of the initial stack.
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* Since mmap() makes it possible to specify the maximum growth of a MAP_STACK
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* region, an unmapped gap between thread stacks achieves the same effect as
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* explicitly mapped red zones.
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* This is declared and initialized in uthread_init.c.
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*/
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extern int _pthread_guard_default;
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extern int _pthread_page_size;
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extern int _pthread_stack_default;
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extern int _pthread_stack_initial;
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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 PTHREAD_STACK32_INITIAL (2 * 1024 * 1024)
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#define PTHREAD_STACK64_INITIAL (4 * 1024 * 1024)
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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 PTHREAD_DEFAULT_PRIORITY 15
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#define PTHREAD_MIN_PRIORITY 0
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#define PTHREAD_MAX_PRIORITY 31 /* 0x1F */
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#define PTHREAD_SIGNAL_PRIORITY 32 /* 0x20 */
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#define PTHREAD_RT_PRIORITY 64 /* 0x40 */
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#define PTHREAD_FIRST_PRIORITY PTHREAD_MIN_PRIORITY
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#define PTHREAD_LAST_PRIORITY \
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(PTHREAD_MAX_PRIORITY + PTHREAD_SIGNAL_PRIORITY + PTHREAD_RT_PRIORITY)
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#define PTHREAD_BASE_PRIORITY(prio) ((prio) & PTHREAD_MAX_PRIORITY)
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/*
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* Clock resolution in microseconds.
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*/
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#define CLOCK_RES_USEC 10000
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#define CLOCK_RES_USEC_MIN 1000
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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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/*
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* XXX Define a thread-safe macro to get the current time of day
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* which is updated at regular intervals by the scheduling signal
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* handler.
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*/
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#define GET_CURRENT_TOD(tv) gettimeofday(&(tv), NULL)
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struct pthread_barrierattr {
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int ba_pshared;
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};
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/*
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* POSIX Threads barrier object.
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* Lock order:
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* 1. pthread_barrier
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* 2. pthread
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*/
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struct pthread_barrier {
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TAILQ_HEAD(barrq_head, pthread) b_barrq;
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struct umtx b_lock;
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int b_total;
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int b_subtotal;
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};
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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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int state; /* 0 = idle >0 = # of readers -1 = writer */
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pthread_cond_t read_signal;
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pthread_cond_t write_signal;
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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_MUTEX_WAIT,
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PS_COND_WAIT,
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PS_BARRIER_WAIT,
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PS_SLEEP_WAIT, /* XXX We need to wrap syscalls to set this state */
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PS_WAIT_WAIT,
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PS_JOIN,
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PS_DEAD,
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PS_DEADLOCK,
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PS_STATE_MAX
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};
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/*
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* File descriptor locking definitions.
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*/
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#define FD_READ 0x1
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#define FD_WRITE 0x2
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#define FD_RDWR (FD_READ | FD_WRITE)
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union pthread_wait_data {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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spinlock_t *spinlock;
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struct pthread *thread;
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};
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struct join_status {
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struct pthread *thread;
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void *ret;
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int error;
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};
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struct pthread_state_data {
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union pthread_wait_data psd_wait_data;
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enum pthread_state psd_state;
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int psd_flags;
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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 rwlock_held {
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LIST_ENTRY(rwlock_held) rh_link;
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struct pthread_rwlock *rh_rwlock;
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int rh_rdcount;
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int rh_wrcount;
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};
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LIST_HEAD(rwlock_listhead, rwlock_held);
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/*
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* The cancel mode a thread is in is determined by the
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* the cancel type and state it is set in. The two values
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* are combined into one mode:
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* Mode State Type
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* ---- ----- ----
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* off disabled deferred
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* off disabled async
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* deferred enabled deferred
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* async enabled async
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*/
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enum cancel_mode { M_OFF, M_DEFERRED, M_ASYNC };
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/*
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* A thread's cancellation is pending until the cancel
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* mode has been tested to determine if the thread can be
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* cancelled immediately.
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*/
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enum cancellation_state { CS_NULL, CS_PENDING, CS_SET };
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/*
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* Thread structure.
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*/
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struct pthread {
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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 PTHREAD_MAGIC ((u_int32_t) 0xd09ba115)
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u_int32_t magic;
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char *name;
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long thr_id;
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sigset_t savedsig;
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int signest; /* blocked signal netsting level */
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int ptdflags; /* used by other other threads
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to signal this thread */
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int isdead;
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int isdeadlocked;
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int exiting;
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int cancellationpoint;
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/*
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* Lock for accesses to this thread structure.
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*/
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struct umtx lock;
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/* Queue entry for list of all threads: */
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TAILQ_ENTRY(pthread) tle;
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/* Queue entry for list of dead threads: */
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TAILQ_ENTRY(pthread) dle;
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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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void *stack;
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struct pthread_attr attr;
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/*
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* Machine context, including signal state.
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*/
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ucontext_t ctx;
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/*
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* The primary method of obtaining a thread's cancel state
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* and type is through cancelmode. The cancelstate field is
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* only so we don't loose the cancel state when the mode is
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* turned off.
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*/
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enum cancel_mode cancelmode;
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enum cancel_mode cancelstate;
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/* Specifies if cancellation is pending, acted upon, or neither. */
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enum cancellation_state cancellation;
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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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struct join_status join_status;
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/*
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* A thread can belong to:
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*
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* o A queue of threads waiting for a mutex
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* o A queue of threads waiting for a condition variable
|
|
*
|
|
* A thread can also be joining a thread (the joiner field above).
|
|
*
|
|
* Use sqe for synchronization (mutex and condition variable) queue
|
|
* links.
|
|
*/
|
|
TAILQ_ENTRY(pthread) sqe; /* synchronization queue link */
|
|
|
|
/* Wait data. */
|
|
union pthread_wait_data data;
|
|
|
|
/* Miscellaneous flags; only set with signals deferred. */
|
|
int flags;
|
|
#define PTHREAD_FLAGS_PRIVATE 0x0001
|
|
#define PTHREAD_FLAGS_BARR_REL 0x0004 /* has been released from barrier */
|
|
#define PTHREAD_FLAGS_IN_BARRQ 0x0008 /* in barrier queue using sqe link */
|
|
#define PTHREAD_FLAGS_IN_CONDQ 0x0080 /* in condition queue using sqe link*/
|
|
#define PTHREAD_FLAGS_IN_MUTEXQ 0x0100 /* in mutex queue using sqe link */
|
|
#define PTHREAD_FLAGS_SUSPENDED 0x0200 /* thread is suspended */
|
|
#define PTHREAD_FLAGS_TRACE 0x0400 /* for debugging purposes */
|
|
#define PTHREAD_FLAGS_IN_SYNCQ \
|
|
(PTHREAD_FLAGS_IN_CONDQ | PTHREAD_FLAGS_IN_MUTEXQ | PTHREAD_FLAGS_IN_BARRQ)
|
|
#define PTHREAD_FLAGS_NOT_RUNNING \
|
|
(PTHREAD_FLAGS_IN_SYNCQ | PTHREAD_FLAGS_SUSPENDED)
|
|
|
|
/*
|
|
* Base priority is the user setable and retrievable priority
|
|
* of the thread. It is only affected by explicit calls to
|
|
* set thread priority and upon thread creation via a thread
|
|
* attribute or default priority.
|
|
*/
|
|
char base_priority;
|
|
|
|
/*
|
|
* Inherited priority is the priority a thread inherits by
|
|
* taking a priority inheritence or protection mutex. It
|
|
* is not affected by base priority changes. Inherited
|
|
* priority defaults to and remains 0 until a mutex is taken
|
|
* that is being waited on by any other thread whose priority
|
|
* is non-zero.
|
|
*/
|
|
char inherited_priority;
|
|
|
|
/*
|
|
* Active priority is always the maximum of the threads base
|
|
* priority and inherited priority. When there is a change
|
|
* in either the base or inherited priority, the active
|
|
* priority must be recalculated.
|
|
*/
|
|
char active_priority;
|
|
|
|
/* Number of priority ceiling or protection mutexes owned. */
|
|
int prio_inherit_count;
|
|
int prio_protect_count;
|
|
|
|
/*
|
|
* Queue of currently owned mutexes.
|
|
*/
|
|
TAILQ_HEAD(, pthread_mutex) mutexq;
|
|
|
|
/*
|
|
* List of read-write locks owned for reading _OR_ writing.
|
|
* This is accessed only by the current thread, so there's
|
|
* no need for mutual exclusion.
|
|
*/
|
|
struct rwlock_listhead *rwlockList;
|
|
|
|
void *ret;
|
|
struct pthread_specific_elem *specific;
|
|
int specific_data_count;
|
|
|
|
/*
|
|
* Architecture specific id field used for _{get, set}_curthread()
|
|
* interface.
|
|
*/
|
|
void *arch_id;
|
|
|
|
/* Cleanup handlers Link List */
|
|
struct pthread_cleanup *cleanup;
|
|
char *fname; /* Ptr to source file name */
|
|
int lineno; /* Source line number. */
|
|
};
|
|
|
|
/*
|
|
* Global variables for the uthread kernel.
|
|
*/
|
|
|
|
SCLASS void *_usrstack
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= (void *) USRSTACK;
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
SCLASS spinlock_t stack_lock
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= _SPINLOCK_INITIALIZER
|
|
#endif
|
|
;
|
|
#define STACK_LOCK _SPINLOCK(&stack_lock);
|
|
#define STACK_UNLOCK _SPINUNLOCK(&stack_lock);
|
|
|
|
/* List of all threads: */
|
|
SCLASS TAILQ_HEAD(, pthread) _thread_list
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= TAILQ_HEAD_INITIALIZER(_thread_list);
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
/* Dead threads: */
|
|
SCLASS TAILQ_HEAD(, pthread) _dead_list
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= TAILQ_HEAD_INITIALIZER(_dead_list);
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
/*
|
|
* These two locks protect the global active threads list and
|
|
* the global dead threads list, respectively. Combining these
|
|
* into one lock for both lists doesn't seem wise, since it
|
|
* would likely increase contention during busy thread creation
|
|
* and destruction for very little savings in space.
|
|
*
|
|
* The lock for the "dead threads list" must be a pthread mutex
|
|
* because it is used with condition variables to synchronize
|
|
* the gc thread with active threads in the process of exiting or
|
|
* dead threads who have just been joined.
|
|
*/
|
|
SCLASS spinlock_t thread_list_lock
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= _SPINLOCK_INITIALIZER
|
|
#endif
|
|
;
|
|
SCLASS pthread_mutex_t dead_list_lock
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= NULL
|
|
#endif
|
|
;
|
|
|
|
#define THREAD_LIST_LOCK _SPINLOCK(&thread_list_lock)
|
|
#define THREAD_LIST_UNLOCK _SPINUNLOCK(&thread_list_lock)
|
|
#define DEAD_LIST_LOCK _pthread_mutex_lock(&dead_list_lock)
|
|
#define DEAD_LIST_UNLOCK _pthread_mutex_unlock(&dead_list_lock)
|
|
|
|
/* Initial thread: */
|
|
SCLASS struct pthread *_thread_initial
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= NULL;
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
SCLASS TAILQ_HEAD(atfork_head, pthread_atfork) _atfork_list;
|
|
SCLASS pthread_mutex_t _atfork_mutex;
|
|
|
|
/* Default thread attributes: */
|
|
SCLASS struct pthread_attr pthread_attr_default
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= { SCHED_RR, 0, TIMESLICE_USEC, PTHREAD_DEFAULT_PRIORITY,
|
|
PTHREAD_CREATE_RUNNING, PTHREAD_CREATE_JOINABLE, NULL, NULL, NULL,
|
|
-1, -1 };
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
/* Default mutex attributes: */
|
|
SCLASS struct pthread_mutex_attr pthread_mutexattr_default
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= { PTHREAD_MUTEX_DEFAULT, PTHREAD_PRIO_NONE, 0, 0 };
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
/* Default condition variable attributes: */
|
|
SCLASS struct pthread_cond_attr pthread_condattr_default
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= { COND_TYPE_FAST, 0 };
|
|
#else
|
|
;
|
|
#endif
|
|
|
|
/*
|
|
* Array of signal actions for this process.
|
|
*/
|
|
SCLASS struct sigaction _thread_sigact[NSIG];
|
|
|
|
/* Precomputed signal set for _thread_suspend. */
|
|
SCLASS sigset_t _thread_suspend_sigset;
|
|
|
|
/* Tracks the number of threads blocked while waiting for a spinlock. */
|
|
SCLASS volatile int _spinblock_count
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= 0
|
|
#endif
|
|
;
|
|
|
|
/*
|
|
* libthread_db.so support.
|
|
*/
|
|
SCLASS int _libthr_debug
|
|
#ifdef GLOBAL_PTHREAD_PRIVATE
|
|
= 0
|
|
#endif
|
|
;
|
|
|
|
/* Undefine the storage class specifier: */
|
|
#undef SCLASS
|
|
|
|
/*
|
|
* Function prototype definitions.
|
|
*/
|
|
__BEGIN_DECLS
|
|
char *__ttyname_basic(int);
|
|
char *__ttyname_r_basic(int, char *, size_t);
|
|
char *ttyname_r(int, char *, size_t);
|
|
void _cond_wait_backout(pthread_t);
|
|
int _find_thread(pthread_t);
|
|
pthread_t _get_curthread(void);
|
|
void *_set_curthread(ucontext_t *, struct pthread *, int *);
|
|
void _retire_thread(void *arch_id);
|
|
void *_thread_stack_alloc(size_t, size_t);
|
|
void _thread_stack_free(void *, size_t, size_t);
|
|
int _thread_create(pthread_t *,const pthread_attr_t *,void *(*start_routine)(void *),void *,pthread_t);
|
|
int _mutex_cv_lock(pthread_mutex_t *);
|
|
int _mutex_cv_unlock(pthread_mutex_t *);
|
|
void _mutex_lock_backout(pthread_t);
|
|
void _mutex_notify_priochange(pthread_t);
|
|
int _mutex_reinit(pthread_mutex_t *);
|
|
void _mutex_unlock_private(pthread_t);
|
|
int _cond_reinit(pthread_cond_t *);
|
|
void *_pthread_getspecific(pthread_key_t);
|
|
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));
|
|
pthread_t _pthread_self(void);
|
|
int _pthread_setspecific(pthread_key_t, const void *);
|
|
int _spintrylock(spinlock_t *);
|
|
void _thread_exit(char *, int, char *);
|
|
void _thread_exit_cleanup(void);
|
|
void *_thread_cleanup(pthread_t);
|
|
void _thread_cleanupspecific(void);
|
|
void _thread_dump_info(void);
|
|
void _thread_init(void);
|
|
void _thread_printf(int fd, const char *, ...);
|
|
void _thread_start(pthread_t td);
|
|
void _thread_seterrno(pthread_t, int);
|
|
void _thread_enter_cancellation_point(void);
|
|
void _thread_leave_cancellation_point(void);
|
|
void _thread_cancellation_point(void);
|
|
int _thread_suspend(pthread_t thread, const struct timespec *abstime);
|
|
void _thread_critical_enter(pthread_t);
|
|
void _thread_critical_exit(pthread_t);
|
|
void _thread_sigblock();
|
|
void _thread_sigunblock();
|
|
void adjust_prio_inheritance(struct pthread *);
|
|
void adjust_prio_protection(struct pthread *);
|
|
void deadlist_free_onethread(struct pthread *);
|
|
void init_td_common(struct pthread *, struct pthread_attr *, int);
|
|
void init_tdlist(struct pthread *, int);
|
|
void proc_sigact_copyin(int, const struct sigaction *);
|
|
void proc_sigact_copyout(int, struct sigaction *);
|
|
void readjust_priorities(struct pthread *, struct pthread_mutex *);
|
|
struct sigaction *proc_sigact_sigaction(int);
|
|
|
|
/* #include <sys/aio.h> */
|
|
#ifdef _SYS_AIO_H_
|
|
int __sys_aio_suspend(const struct aiocb * const[], int, const struct timespec *);
|
|
#endif
|
|
|
|
/* #include <sys/event.h> */
|
|
#ifdef _SYS_EVENT_H_
|
|
int __sys_kevent(int, const struct kevent *, int, struct kevent *,
|
|
int, const struct timespec *);
|
|
#endif
|
|
|
|
/* #include <sys/ioctl.h> */
|
|
#ifdef _SYS_IOCTL_H_
|
|
int __sys_ioctl(int, unsigned long, ...);
|
|
#endif
|
|
|
|
/* #include <sys/msg.h> */
|
|
#ifdef _SYS_MSG_H_
|
|
int __sys_msgrcv(int, void *, size_t, long, int);
|
|
int __sys_msgsnd(int, const void *, size_t, int);
|
|
#endif
|
|
|
|
/* #include <sys/mman.h> */
|
|
#ifdef _SYS_MMAN_H_
|
|
int __sys_msync(void *, size_t, int);
|
|
#endif
|
|
|
|
/* #include <sys/mount.h> */
|
|
#ifdef _SYS_MOUNT_H_
|
|
int __sys_fstatfs(int, struct statfs *);
|
|
#endif
|
|
|
|
/* #include <sys/socket.h> */
|
|
#ifdef _SYS_SOCKET_H_
|
|
int __sys_accept(int, struct sockaddr *, socklen_t *);
|
|
int __sys_bind(int, const struct sockaddr *, socklen_t);
|
|
int __sys_connect(int, const struct sockaddr *, socklen_t);
|
|
int __sys_getpeername(int, struct sockaddr *, socklen_t *);
|
|
int __sys_getsockname(int, struct sockaddr *, socklen_t *);
|
|
int __sys_getsockopt(int, int, int, void *, socklen_t *);
|
|
int __sys_listen(int, int);
|
|
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);
|
|
int __sys_setsockopt(int, int, int, const void *, socklen_t);
|
|
int __sys_shutdown(int, int);
|
|
int __sys_socket(int, int, int);
|
|
int __sys_socketpair(int, int, int, int *);
|
|
#endif
|
|
|
|
/* #include <sys/stat.h> */
|
|
#ifdef _SYS_STAT_H_
|
|
int __sys_fchflags(int, u_long);
|
|
int __sys_fchmod(int, mode_t);
|
|
int __sys_fstat(int, struct stat *);
|
|
#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 <sys/wait.h> */
|
|
#ifdef WNOHANG
|
|
pid_t __sys_wait4(pid_t, int *, int, struct rusage *);
|
|
#endif
|
|
|
|
/* #include <dirent.h> */
|
|
#ifdef _DIRENT_H_
|
|
int __sys_getdirentries(int, char *, int, long *);
|
|
#endif
|
|
|
|
/* #include <fcntl.h> */
|
|
#ifdef _SYS_FCNTL_H_
|
|
int __sys_fcntl(int, int, ...);
|
|
int __sys_flock(int, int);
|
|
int __sys_open(const char *, int, ...);
|
|
#endif
|
|
|
|
/* #include <poll.h> */
|
|
#ifdef _SYS_POLL_H_
|
|
int __sys_poll(struct pollfd *, unsigned, int);
|
|
#endif
|
|
|
|
/* #include <semaphore.h> */
|
|
#ifdef _SEMAPHORE_H_
|
|
int __sem_timedwait(sem_t * __restrict, const struct timespec * __restrict);
|
|
int __sem_wait(sem_t *);
|
|
#endif
|
|
|
|
/* #include <signal.h> */
|
|
#ifdef _SIGNAL_H_
|
|
int __sys_sigaction(int, const struct sigaction *, struct sigaction *);
|
|
int __sys_sigaltstack(const struct sigaltstack *, struct sigaltstack *);
|
|
int __sys_sigprocmask(int, const sigset_t *, sigset_t *);
|
|
int __sys_sigreturn(ucontext_t *);
|
|
int __sys_sigsuspend(const sigset_t *);
|
|
int __sys_sigtimedwait(const sigset_t * __restrict, siginfo_t * __restrict,
|
|
const struct timespec * __restrict);
|
|
int __sys_sigwait(const sigset_t * __restrict, int * __restrict);
|
|
int __sys_sigwaitinfo(const sigset_t * __restrict, siginfo_t * __restrict);
|
|
#endif
|
|
|
|
/* #include <unistd.h> */
|
|
#ifdef _UNISTD_H_
|
|
int __sys_close(int);
|
|
int __sys_dup(int);
|
|
int __sys_dup2(int, int);
|
|
int __sys_execve(const char *, char * const *, char * const *);
|
|
void __sys_exit(int);
|
|
int __sys_fchown(int, uid_t, gid_t);
|
|
pid_t __sys_fork(void);
|
|
long __sys_fpathconf(int, int);
|
|
int __sys_fsync(int);
|
|
int __sys_pipe(int *);
|
|
ssize_t __sys_pread(int, void *, size_t, off_t);
|
|
ssize_t __sys_pwrite(int, const void *, size_t, off_t);
|
|
ssize_t __sys_read(int, void *, size_t);
|
|
ssize_t __sys_write(int, const void *, size_t);
|
|
#endif
|
|
|
|
__END_DECLS
|
|
|
|
#endif /* !_PTHREAD_PRIVATE_H */
|