00b67f09dd
Also known as ISC bind. This import adds utilities such as host(1), dig(1), and nslookup(1), as well as many other tools and libraries. Change-Id: I035ca46e64f1965d57019e773f4ff0ef035e4aa3
94 lines
2.4 KiB
C
94 lines
2.4 KiB
C
/* $NetBSD: thread.c,v 1.6 2014/12/10 04:38:00 christos Exp $ */
|
|
|
|
/*
|
|
* Copyright (C) 2004, 2005, 2007, 2013 Internet Systems Consortium, Inc. ("ISC")
|
|
* Copyright (C) 2000, 2001, 2003 Internet Software Consortium.
|
|
*
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
|
* purpose with or without fee is hereby granted, provided that the above
|
|
* copyright notice and this permission notice appear in all copies.
|
|
*
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
|
|
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
|
|
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
|
|
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
|
|
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
|
|
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
|
|
* PERFORMANCE OF THIS SOFTWARE.
|
|
*/
|
|
|
|
/* Id: thread.c,v 1.17 2007/06/19 23:47:18 tbox Exp */
|
|
|
|
/*! \file */
|
|
|
|
#include <config.h>
|
|
|
|
#if defined(HAVE_SCHED_H)
|
|
#include <sched.h>
|
|
#endif
|
|
|
|
#include <isc/thread.h>
|
|
#include <isc/util.h>
|
|
|
|
#ifndef THREAD_MINSTACKSIZE
|
|
#define THREAD_MINSTACKSIZE (1024U * 1024)
|
|
#endif
|
|
|
|
isc_result_t
|
|
isc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg,
|
|
isc_thread_t *thread)
|
|
{
|
|
pthread_attr_t attr;
|
|
size_t stacksize;
|
|
int ret;
|
|
|
|
pthread_attr_init(&attr);
|
|
|
|
#if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
|
|
defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE)
|
|
ret = pthread_attr_getstacksize(&attr, &stacksize);
|
|
if (ret != 0)
|
|
return (ISC_R_UNEXPECTED);
|
|
|
|
if (stacksize < THREAD_MINSTACKSIZE) {
|
|
ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE);
|
|
if (ret != 0)
|
|
return (ISC_R_UNEXPECTED);
|
|
}
|
|
#endif
|
|
|
|
#if defined(PTHREAD_SCOPE_SYSTEM) && defined(NEED_PTHREAD_SCOPE_SYSTEM)
|
|
ret = pthread_attr_setscope(&attr, PTHREAD_SCOPE_SYSTEM);
|
|
if (ret != 0)
|
|
return (ISC_R_UNEXPECTED);
|
|
#endif
|
|
|
|
ret = pthread_create(thread, &attr, func, arg);
|
|
if (ret != 0)
|
|
return (ISC_R_UNEXPECTED);
|
|
|
|
pthread_attr_destroy(&attr);
|
|
|
|
return (ISC_R_SUCCESS);
|
|
}
|
|
|
|
void
|
|
isc_thread_setconcurrency(unsigned int level) {
|
|
#if defined(CALL_PTHREAD_SETCONCURRENCY)
|
|
(void)pthread_setconcurrency(level);
|
|
#else
|
|
UNUSED(level);
|
|
#endif
|
|
}
|
|
|
|
void
|
|
isc_thread_yield(void) {
|
|
#if defined(HAVE_SCHED_YIELD)
|
|
sched_yield();
|
|
#elif defined( HAVE_PTHREAD_YIELD)
|
|
pthread_yield();
|
|
#elif defined( HAVE_PTHREAD_YIELD_NP)
|
|
pthread_yield_np();
|
|
#endif
|
|
}
|