4a027d50c7
for the process, not a separate set for each thread). By default, the process now only has signal handlers installed for SIGVTALRM, SIGINFO and SIGCHLD. The thread kernel signal handler is installed for other signals on demand. This means that SIG_IGN and SIG_DFL processing is now left to the kernel, not the thread kernel. Change the signal dispatch to no longer use a signal thread, and call the signal handler using the stack of the thread that has the signal pending. Change the atomic lock method to use test-and-set asm code with a yield if blocked. This introduces separate locks for each type of object instead of blocking signals to prevent a context switch. It was this blocking of signals that caused the performance degradation the people have noted. This is a *big* change!
803 lines
22 KiB
C
803 lines
22 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 REGENTS 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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*/
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#ifndef _PTHREAD_PRIVATE_H
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#define _PTHREAD_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 <setjmp.h>
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#include <signal.h>
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#include <sys/queue.h>
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#include <sys/types.h>
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#include <sys/time.h>
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#include <sched.h>
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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(_x) _write(1,_x,strlen(_x));
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#define stderr_debug(_x) _write(2,_x,strlen(_x));
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/*
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* State change macro:
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*/
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#define PTHREAD_NEW_STATE(thrd, newstate) { \
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(thrd)->state = newstate; \
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(thrd)->fname = __FILE__; \
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(thrd)->lineno = __LINE__; \
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}
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/*
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* Queue definitions.
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*/
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struct pthread_queue {
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struct pthread *q_next;
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struct pthread *q_last;
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void *q_data;
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};
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/*
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* Static queue initialization values.
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*/
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#define PTHREAD_QUEUE_INITIALIZER { NULL, NULL, NULL }
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/*
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* Mutex definitions.
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*/
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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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struct pthread_queue 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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/*
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* Lock for accesses to this structure.
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*/
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long access_lock;
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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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* Static mutex initialization values.
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*/
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#define PTHREAD_MUTEX_STATIC_INITIALIZER \
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{ MUTEX_TYPE_FAST, PTHREAD_QUEUE_INITIALIZER, \
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NULL, { NULL }, MUTEX_FLAGS_INITED }
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struct pthread_mutex_attr {
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enum pthread_mutextype m_type;
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long m_flags;
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};
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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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struct pthread_queue c_queue;
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void *c_data;
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long c_flags;
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/*
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* Lock for accesses to this structure.
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*/
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long access_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_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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* Static cond initialization values.
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*/
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#define PTHREAD_COND_STATIC_INITIALIZER \
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{ COND_TYPE_FAST, PTHREAD_QUEUE_INITIALIZER, NULL, COND_FLAGS_INITED }
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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_attr {
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int schedparam_policy;
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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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};
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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_STACK_DEFAULT 65536
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#define PTHREAD_DEFAULT_PRIORITY 64
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#define PTHREAD_MAX_PRIORITY 126
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#define PTHREAD_MIN_PRIORITY 0
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#define _POSIX_THREAD_ATTR_STACKSIZE
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/*
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* Clock resolution in nanoseconds.
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*/
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#define CLOCK_RES_NSEC 10000000
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/*
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* Number of microseconds between incremental priority updates for
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* threads that are ready to run, but denied being run.
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*/
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#define INC_PRIO_USEC 500000
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/*
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* Time slice period in microseconds.
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*/
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#define TIMESLICE_USEC 100000
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struct pthread_key {
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pthread_mutex_t mutex;
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long access_lock;
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long count;
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void (*destructor) ();
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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_SIGTHREAD,
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PS_MUTEX_WAIT,
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PS_COND_WAIT,
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PS_FDLR_WAIT,
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PS_FDLW_WAIT,
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PS_FDR_WAIT,
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PS_FDW_WAIT,
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PS_FILE_WAIT,
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PS_SELECT_WAIT,
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PS_SLEEP_WAIT,
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PS_WAIT_WAIT,
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PS_SIGWAIT,
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PS_JOIN,
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PS_SUSPENDED,
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PS_DEAD,
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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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/*
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* File descriptor table structure.
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*/
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struct fd_table_entry {
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/*
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* Lock for accesses to this file descriptor table
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* entry. This is passed to _spinlock() to provide atomic
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* access to this structure. It does *not* represent the
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* state of the lock on the file descriptor.
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*/
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long access_lock;
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struct pthread_queue r_queue; /* Read queue. */
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struct pthread_queue w_queue; /* Write queue. */
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struct pthread *r_owner; /* Ptr to thread owning read lock. */
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struct pthread *w_owner; /* Ptr to thread owning write lock. */
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char *r_fname; /* Ptr to read lock source file name */
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int r_lineno; /* Read lock source line number. */
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char *w_fname; /* Ptr to write lock source file name */
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int w_lineno; /* Write lock source line number. */
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int r_lockcount; /* Count for FILE read locks. */
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int w_lockcount; /* Count for FILE write locks. */
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int flags; /* Flags used in open. */
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};
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struct pthread_select_data {
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int nfds;
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fd_set readfds;
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fd_set writefds;
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fd_set exceptfds;
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};
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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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const sigset_t *sigwait; /* Waiting on a signal in sigwait */
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struct {
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short fd; /* Used when thread waiting on fd */
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short branch; /* Line number, for debugging. */
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char *fname; /* Source file name for debugging.*/
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} fd;
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struct pthread_select_data * select_data;
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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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/*
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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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/*
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* Lock for accesses to this thread structure.
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*/
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long access_lock;
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/*
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* Pointer to the next thread in the thread linked list.
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*/
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struct pthread *nxt;
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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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#if (defined(__FreeBSD__) || defined(__NetBSD__)) && defined(__i386__)
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/*
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* Saved floating point registers on systems where they are not
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* saved in the signal context.
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*/
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char saved_fp[108];
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#endif
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/*
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* Saved signal context used in call to sigreturn by
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* _thread_kern_sched if sig_saved is TRUE.
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*/
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struct sigcontext saved_sigcontext;
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/*
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* Saved jump buffer used in call to longjmp by _thread_kern_sched
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* if sig_saved is FALSE.
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*/
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jmp_buf saved_jmp_buf;
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/*
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* TRUE if the last state saved was a signal context. FALSE if the
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* last state saved was a jump buffer.
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*/
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int sig_saved;
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/*
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* Current signal mask and pending signals.
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*/
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sigset_t sigmask;
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sigset_t sigpend;
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/* Thread state: */
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enum pthread_state state;
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/* Time that this thread was last made active. */
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struct timeval last_active;
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/* Time that this thread was last made inactive. */
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struct timeval last_inactive;
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/*
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* Number of microseconds accumulated by this thread when
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* time slicing is active.
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*/
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long slice_usec;
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/*
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* Incremental priority accumulated by thread while it is ready to
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* run but is denied being run.
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*/
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int inc_prio;
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/*
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* Time to wake up thread. This is used for sleeping threads and
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* for any operation which may time out (such as select).
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*/
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struct timespec wakeup_time;
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/* TRUE if operation has timed out. */
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int timeout;
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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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/* Join queue for waiting threads: */
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struct pthread_queue join_queue;
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/*
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* The current thread can belong to only one queue at a time.
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*
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* Pointer to queue (if any) on which the current thread is waiting.
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*
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* XXX The queuing should be changed to use the TAILQ entry below.
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* XXX For the time being, it's hybrid.
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*/
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struct pthread_queue *queue;
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/* Pointer to next element in queue. */
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struct pthread *qnxt;
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/* Queue entry for this thread: */
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TAILQ_ENTRY(pthread) qe;
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/* Wait data. */
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union pthread_wait_data data;
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/*
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* Set to TRUE if a blocking operation was
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* interrupted by a signal:
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*/
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int interrupted;
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/* Signal number when in state PS_SIGWAIT: */
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int signo;
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/* Miscellaneous data. */
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char flags;
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char pthread_priority;
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void *ret;
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const void **specific_data;
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int specific_data_count;
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/* Cleanup handlers Link List */
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struct pthread_cleanup *cleanup;
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char *fname; /* Ptr to source file name */
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int lineno; /* Source line number. */
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};
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/*
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* Global variables for the uthread kernel.
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*/
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/* Kernel thread structure used when there are no running threads: */
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SCLASS struct pthread _thread_kern_thread;
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/* Ptr to the thread structure for the running thread: */
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SCLASS struct pthread * volatile _thread_run
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= &_thread_kern_thread;
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#else
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;
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#endif
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/*
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* Ptr to the thread running in single-threaded mode or NULL if
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* running multi-threaded (default POSIX behaviour).
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*/
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SCLASS struct pthread * volatile _thread_single
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= NULL;
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#else
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;
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#endif
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/* Ptr to the first thread in the thread linked list: */
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SCLASS struct pthread * volatile _thread_link_list
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= NULL;
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#else
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;
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#endif
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/*
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* Array of kernel pipe file descriptors that are used to ensure that
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* no signals are missed in calls to _select.
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*/
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SCLASS int _thread_kern_pipe[2]
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= {
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-1,
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-1
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};
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#else
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;
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#endif
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SCLASS int _thread_kern_in_select
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= 0;
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#else
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;
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#endif
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SCLASS int _thread_kern_in_sched
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= 0;
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#else
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;
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#endif
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/* Last time that an incremental priority update was performed: */
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SCLASS struct timeval kern_inc_prio_time
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= { 0, 0 };
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#else
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;
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#endif
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/* Dead threads: */
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SCLASS struct pthread * volatile _thread_dead
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= NULL;
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#else
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;
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#endif
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/* Initial thread: */
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SCLASS struct pthread *_thread_initial
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= NULL;
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#else
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;
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#endif
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/* Default thread attributes: */
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SCLASS struct pthread_attr pthread_attr_default
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= { SCHED_RR, PTHREAD_DEFAULT_PRIORITY, PTHREAD_CREATE_RUNNING,
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PTHREAD_CREATE_JOINABLE, NULL, NULL, NULL, PTHREAD_STACK_DEFAULT };
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#else
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;
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#endif
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/* Default mutex attributes: */
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SCLASS struct pthread_mutex_attr pthread_mutexattr_default
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= { MUTEX_TYPE_FAST, 0 };
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#else
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;
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#endif
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/* Default condition variable attributes: */
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SCLASS struct pthread_cond_attr pthread_condattr_default
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= { COND_TYPE_FAST, 0 };
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#else
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;
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#endif
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/*
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* Standard I/O file descriptors need special flag treatment since
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* setting one to non-blocking does all on *BSD. Sigh. This array
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* is used to store the initial flag settings.
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*/
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SCLASS int _pthread_stdio_flags[3];
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/* File table information: */
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SCLASS struct fd_table_entry **_thread_fd_table
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= NULL;
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#else
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;
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#endif
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SCLASS const int dtablecount
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= 4096/sizeof(struct fd_table_entry);
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#else
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;
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#endif
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SCLASS int _thread_dtablesize /* Descriptor table size. */
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#ifdef GLOBAL_PTHREAD_PRIVATE
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= 1024;
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#else
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;
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#endif
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/*
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* Array of signal actions for this process.
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*/
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struct sigaction _thread_sigact[NSIG];
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/* Undefine the storage class specifier: */
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#undef SCLASS
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/*
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* Function prototype definitions.
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*/
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__BEGIN_DECLS
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char *__ttyname_basic(int);
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char *__ttyname_r_basic(int, char *, size_t);
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char *ttyname_r(int, char *, size_t);
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int _find_dead_thread(pthread_t);
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int _find_thread(pthread_t);
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int _thread_create(pthread_t *,const pthread_attr_t *,void *(*start_routine)(void *),void *,pthread_t);
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int _thread_fd_lock(int, int, struct timespec *,char *fname,int lineno);
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void _dispatch_signals(void);
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void _thread_signal(pthread_t, int);
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void _lock_dead_thread_list(void);
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void _lock_thread(void);
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void _lock_thread_list(void);
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void _unlock_dead_thread_list(void);
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void _unlock_thread(void);
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void _unlock_thread_list(void);
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void _thread_exit(char *, int, char *);
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void _thread_fd_unlock(int, int);
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void *_thread_cleanup(pthread_t);
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void _thread_cleanupspecific(void);
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void _thread_dump_info(void);
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void _thread_init(void);
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void _thread_kern_sched(struct sigcontext *);
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void _thread_kern_sched_state(enum pthread_state,char *fname,int lineno);
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void _thread_kern_set_timeout(struct timespec *);
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void _thread_sig_handler(int, int, struct sigcontext *);
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void _thread_start(void);
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void _thread_start_sig_handler(void);
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void _thread_seterrno(pthread_t,int);
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void _thread_queue_init(struct pthread_queue *);
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void _thread_queue_enq(struct pthread_queue *, struct pthread *);
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int _thread_queue_remove(struct pthread_queue *, struct pthread *);
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|
int _thread_fd_table_init(int fd);
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struct pthread *_thread_queue_get(struct pthread_queue *);
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struct pthread *_thread_queue_deq(struct pthread_queue *);
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/* #include <signal.h> */
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int _thread_sys_sigaction(int, const struct sigaction *, struct sigaction *);
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int _thread_sys_sigpending(sigset_t *);
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int _thread_sys_sigprocmask(int, const sigset_t *, sigset_t *);
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int _thread_sys_sigsuspend(const sigset_t *);
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int _thread_sys_siginterrupt(int, int);
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|
int _thread_sys_sigpause(int);
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|
int _thread_sys_sigreturn(struct sigcontext *);
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int _thread_sys_sigstack(const struct sigstack *, struct sigstack *);
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|
int _thread_sys_sigvec(int, struct sigvec *, struct sigvec *);
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void _thread_sys_psignal(unsigned int, const char *);
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void (*_thread_sys_signal(int, void (*)(int)))(int);
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|
|
|
/* #include <sys/stat.h> */
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#ifdef _SYS_STAT_H_
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int _thread_sys_fchmod(int, mode_t);
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|
int _thread_sys_fstat(int, struct stat *);
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|
int _thread_sys_fchflags(int, u_long);
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|
#endif
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|
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/* #include <sys/mount.h> */
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|
#ifdef _SYS_MOUNT_H_
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|
int _thread_sys_fstatfs(int, struct statfs *);
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|
#endif
|
|
int _thread_sys_pipe(int *);
|
|
|
|
/* #include <sys/socket.h> */
|
|
#ifdef _SYS_SOCKET_H_
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|
int _thread_sys_accept(int, struct sockaddr *, int *);
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|
int _thread_sys_bind(int, const struct sockaddr *, int);
|
|
int _thread_sys_connect(int, const struct sockaddr *, int);
|
|
int _thread_sys_getpeername(int, struct sockaddr *, int *);
|
|
int _thread_sys_getsockname(int, struct sockaddr *, int *);
|
|
int _thread_sys_getsockopt(int, int, int, void *, int *);
|
|
int _thread_sys_listen(int, int);
|
|
int _thread_sys_setsockopt(int, int, int, const void *, int);
|
|
int _thread_sys_shutdown(int, int);
|
|
int _thread_sys_socket(int, int, int);
|
|
int _thread_sys_socketpair(int, int, int, int *);
|
|
ssize_t _thread_sys_recv(int, void *, size_t, int);
|
|
ssize_t _thread_sys_recvfrom(int, void *, size_t, int, struct sockaddr *, int *);
|
|
ssize_t _thread_sys_recvmsg(int, struct msghdr *, int);
|
|
ssize_t _thread_sys_send(int, const void *, size_t, int);
|
|
ssize_t _thread_sys_sendmsg(int, const struct msghdr *, int);
|
|
ssize_t _thread_sys_sendto(int, const void *,size_t, int, const struct sockaddr *, int);
|
|
#endif
|
|
|
|
/* #include <stdio.h> */
|
|
#ifdef _STDIO_H_
|
|
FILE *_thread_sys_fdopen(int, const char *);
|
|
FILE *_thread_sys_fopen(const char *, const char *);
|
|
FILE *_thread_sys_freopen(const char *, const char *, FILE *);
|
|
FILE *_thread_sys_popen(const char *, const char *);
|
|
FILE *_thread_sys_tmpfile(void);
|
|
char *_thread_sys_ctermid(char *);
|
|
char *_thread_sys_cuserid(char *);
|
|
char *_thread_sys_fgetln(FILE *, size_t *);
|
|
char *_thread_sys_fgets(char *, int, FILE *);
|
|
char *_thread_sys_gets(char *);
|
|
char *_thread_sys_tempnam(const char *, const char *);
|
|
char *_thread_sys_tmpnam(char *);
|
|
int _thread_sys_fclose(FILE *);
|
|
int _thread_sys_feof(FILE *);
|
|
int _thread_sys_ferror(FILE *);
|
|
int _thread_sys_fflush(FILE *);
|
|
int _thread_sys_fgetc(FILE *);
|
|
int _thread_sys_fgetpos(FILE *, fpos_t *);
|
|
int _thread_sys_fileno(FILE *);
|
|
int _thread_sys_fprintf(FILE *, const char *, ...);
|
|
int _thread_sys_fpurge(FILE *);
|
|
int _thread_sys_fputc(int, FILE *);
|
|
int _thread_sys_fputs(const char *, FILE *);
|
|
int _thread_sys_fscanf(FILE *, const char *, ...);
|
|
int _thread_sys_fseek(FILE *, long, int);
|
|
int _thread_sys_fsetpos(FILE *, const fpos_t *);
|
|
int _thread_sys_getc(FILE *);
|
|
int _thread_sys_getchar(void);
|
|
int _thread_sys_getw(FILE *);
|
|
int _thread_sys_pclose(FILE *);
|
|
int _thread_sys_printf(const char *, ...);
|
|
int _thread_sys_putc(int, FILE *);
|
|
int _thread_sys_putchar(int);
|
|
int _thread_sys_puts(const char *);
|
|
int _thread_sys_putw(int, FILE *);
|
|
int _thread_sys_remove(const char *);
|
|
int _thread_sys_rename (const char *, const char *);
|
|
int _thread_sys_scanf(const char *, ...);
|
|
int _thread_sys_setlinebuf(FILE *);
|
|
int _thread_sys_setvbuf(FILE *, char *, int, size_t);
|
|
int _thread_sys_snprintf(char *, size_t, const char *, ...);
|
|
int _thread_sys_sprintf(char *, const char *, ...);
|
|
int _thread_sys_sscanf(const char *, const char *, ...);
|
|
int _thread_sys_ungetc(int, FILE *);
|
|
int _thread_sys_vfprintf(FILE *, const char *, _BSD_VA_LIST_);
|
|
int _thread_sys_vprintf(const char *, _BSD_VA_LIST_);
|
|
int _thread_sys_vscanf(const char *, _BSD_VA_LIST_);
|
|
int _thread_sys_vsnprintf(char *, size_t, const char *, _BSD_VA_LIST_);
|
|
int _thread_sys_vsprintf(char *, const char *, _BSD_VA_LIST_);
|
|
int _thread_sys_vsscanf(const char *, const char *, _BSD_VA_LIST_);
|
|
long _thread_sys_ftell(FILE *);
|
|
size_t _thread_sys_fread(void *, size_t, size_t, FILE *);
|
|
size_t _thread_sys_fwrite(const void *, size_t, size_t, FILE *);
|
|
void _thread_sys_clearerr(FILE *);
|
|
void _thread_sys_perror(const char *);
|
|
void _thread_sys_rewind(FILE *);
|
|
void _thread_sys_setbuf(FILE *, char *);
|
|
void _thread_sys_setbuffer(FILE *, char *, int);
|
|
#endif
|
|
|
|
/* #include <unistd.h> */
|
|
#ifdef _UNISTD_H_
|
|
char *_thread_sys_ttyname(int);
|
|
int _thread_sys_close(int);
|
|
int _thread_sys_dup(int);
|
|
int _thread_sys_dup2(int, int);
|
|
int _thread_sys_exect(const char *, char * const *, char * const *);
|
|
int _thread_sys_execve(const char *, char * const *, char * const *);
|
|
int _thread_sys_fchdir(int);
|
|
int _thread_sys_fchown(int, uid_t, gid_t);
|
|
int _thread_sys_fsync(int);
|
|
int _thread_sys_ftruncate(int, off_t);
|
|
int _thread_sys_pause(void);
|
|
int _thread_sys_pipe(int *);
|
|
int _thread_sys_select(int, fd_set *, fd_set *, fd_set *, struct timeval *);
|
|
off_t _thread_sys_lseek(int, off_t, int);
|
|
pid_t _thread_sys_fork(void);
|
|
pid_t _thread_sys_tcgetpgrp(int);
|
|
ssize_t _thread_sys_read(int, void *, size_t);
|
|
ssize_t _thread_sys_write(int, const void *, size_t);
|
|
void _thread_sys__exit(int);
|
|
#endif
|
|
|
|
/* #include <fcntl.h> */
|
|
#ifdef _SYS_FCNTL_H_
|
|
int _thread_sys_creat(const char *, mode_t);
|
|
int _thread_sys_fcntl(int, int, ...);
|
|
int _thread_sys_flock(int, int);
|
|
int _thread_sys_open(const char *, int, ...);
|
|
#endif
|
|
|
|
/* #include <sys/ioctl.h> */
|
|
#ifdef _SYS_IOCTL_H_
|
|
int _thread_sys_ioctl(int, unsigned long, ...);
|
|
#endif
|
|
|
|
/* #include <dirent.h> */
|
|
#ifdef _DIRENT_H_
|
|
DIR *___thread_sys_opendir2(const char *, int);
|
|
DIR *_thread_sys_opendir(const char *);
|
|
int _thread_sys_alphasort(const void *, const void *);
|
|
int _thread_sys_scandir(const char *, struct dirent ***,
|
|
int (*)(struct dirent *), int (*)(const void *, const void *));
|
|
int _thread_sys_closedir(DIR *);
|
|
int _thread_sys_getdirentries(int, char *, int, long *);
|
|
long _thread_sys_telldir(const DIR *);
|
|
struct dirent *_thread_sys_readdir(DIR *);
|
|
void _thread_sys_rewinddir(DIR *);
|
|
void _thread_sys_seekdir(DIR *, long);
|
|
#endif
|
|
|
|
/* #include <sys/uio.h> */
|
|
#ifdef _SYS_UIO_H_
|
|
ssize_t _thread_sys_readv(int, const struct iovec *, int);
|
|
ssize_t _thread_sys_writev(int, const struct iovec *, int);
|
|
#endif
|
|
|
|
/* #include <sys/wait.h> */
|
|
#ifdef WNOHANG
|
|
pid_t _thread_sys_wait(int *);
|
|
pid_t _thread_sys_waitpid(pid_t, int *, int);
|
|
pid_t _thread_sys_wait3(int *, int, struct rusage *);
|
|
pid_t _thread_sys_wait4(pid_t, int *, int, struct rusage *);
|
|
#endif
|
|
__END_DECLS
|
|
|
|
#endif /* !_PTHREAD_PRIVATE_H */
|