1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
|
/*
* Copyright (C) Internet Systems Consortium, Inc. ("ISC")
*
* SPDX-License-Identifier: MPL-2.0
*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, you can obtain one at https://mozilla.org/MPL/2.0/.
*
* See the COPYRIGHT file distributed with this work for additional
* information regarding copyright ownership.
*/
/*! \file */
#if defined(HAVE_SCHED_H)
#include <sched.h>
#endif /* if defined(HAVE_SCHED_H) */
#if defined(HAVE_CPUSET_H)
#include <sys/cpuset.h>
#include <sys/param.h>
#endif /* if defined(HAVE_CPUSET_H) */
#if defined(HAVE_SYS_PROCSET_H)
#include <sys/processor.h>
#include <sys/procset.h>
#include <sys/types.h>
#endif /* if defined(HAVE_SYS_PROCSET_H) */
#include <isc/strerr.h>
#include <isc/thread.h>
#include <isc/util.h>
#include "trampoline_p.h"
#ifndef THREAD_MINSTACKSIZE
#define THREAD_MINSTACKSIZE (1024U * 1024)
#endif /* ifndef THREAD_MINSTACKSIZE */
#define _FATAL(r, f) \
{ \
char strbuf[ISC_STRERRORSIZE]; \
strerror_r(r, strbuf, sizeof(strbuf)); \
isc_error_fatal(__FILE__, __LINE__, f " failed: %s", strbuf); \
}
void
isc_thread_create(isc_threadfunc_t func, isc_threadarg_t arg,
isc_thread_t *thread) {
pthread_attr_t attr;
isc__trampoline_t *trampoline_arg;
trampoline_arg = isc__trampoline_get(func, arg);
#if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE)
size_t stacksize;
#endif /* if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
* defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) */
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) {
_FATAL(ret, "pthread_attr_getstacksize()");
}
if (stacksize < THREAD_MINSTACKSIZE) {
ret = pthread_attr_setstacksize(&attr, THREAD_MINSTACKSIZE);
if (ret != 0) {
_FATAL(ret, "pthread_attr_setstacksize()");
}
}
#endif /* if defined(HAVE_PTHREAD_ATTR_GETSTACKSIZE) && \
* defined(HAVE_PTHREAD_ATTR_SETSTACKSIZE) */
ret = pthread_create(thread, &attr, isc__trampoline_run,
trampoline_arg);
if (ret != 0) {
_FATAL(ret, "pthread_create()");
}
pthread_attr_destroy(&attr);
return;
}
void
isc_thread_join(isc_thread_t thread, isc_threadresult_t *result) {
int ret = pthread_join(thread, result);
if (ret != 0) {
_FATAL(ret, "pthread_join()");
}
}
void
isc_thread_setname(isc_thread_t thread, const char *name) {
#if defined(HAVE_PTHREAD_SETNAME_NP) && !defined(__APPLE__)
/*
* macOS has pthread_setname_np but only works on the
* current thread so it's not used here
*/
#if defined(__NetBSD__)
(void)pthread_setname_np(thread, name, NULL);
#else /* if defined(__NetBSD__) */
(void)pthread_setname_np(thread, name);
#endif /* if defined(__NetBSD__) */
#elif defined(HAVE_PTHREAD_SET_NAME_NP)
(void)pthread_set_name_np(thread, name);
#else /* if defined(HAVE_PTHREAD_SETNAME_NP) && !defined(__APPLE__) */
UNUSED(thread);
UNUSED(name);
#endif /* if defined(HAVE_PTHREAD_SETNAME_NP) && !defined(__APPLE__) */
}
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 /* if defined(HAVE_SCHED_YIELD) */
}
|
