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174 lines
4.7 KiB
174 lines
4.7 KiB
/* Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License, version 2.0,
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as published by the Free Software Foundation.
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This program is also distributed with certain software (including
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but not limited to OpenSSL) that is licensed under separate terms,
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as designated in a particular file or component or in included license
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documentation. The authors of MySQL hereby grant you an additional
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permission to link the program and your derivative works with the
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separately licensed software that they have included with MySQL.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License, version 2.0, for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */
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/**
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@file include/my_thread.h
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Defines to make different thread packages compatible.
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*/
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#ifndef MY_THREAD_INCLUDED
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#define MY_THREAD_INCLUDED
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#include <errno.h>
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#include <stdbool.h>
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#include <stddef.h>
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#include <mysql/components/services/my_thread_bits.h>
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#include "my_compiler.h"
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#include "my_config.h"
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#include "my_inttypes.h"
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#include "my_macros.h"
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#ifndef ETIME
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#define ETIME ETIMEDOUT /* For FreeBSD */
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#endif
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#ifndef ETIMEDOUT
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#define ETIMEDOUT 145 /* Win32 doesn't have this */
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#endif
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#if defined(__sparc) && (defined(__SUNPRO_CC) || defined(__SUNPRO_C))
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#define STACK_MULTIPLIER 2UL
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#elif defined HAVE_UBSAN
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#define STACK_MULTIPLIER 3UL
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#elif defined HAVE_LSAN
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#define STACK_MULTIPLIER 4UL
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#else
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#define STACK_MULTIPLIER 1UL
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#endif
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#if SIZEOF_CHARP > 4
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#define DEFAULT_THREAD_STACK (STACK_MULTIPLIER * 280UL * 1024UL)
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#else
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#define DEFAULT_THREAD_STACK (STACK_MULTIPLIER * 216UL * 1024UL)
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#endif
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static inline int is_timeout(int e) {
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#if ETIMEDOUT == ETIME
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return e == ETIMEDOUT;
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#else
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return e == ETIMEDOUT || e == ETIME;
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#endif
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}
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#ifdef _WIN32
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#define MY_THREAD_CREATE_JOINABLE 0
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#define MY_THREAD_CREATE_DETACHED 1
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typedef void *(__cdecl *my_start_routine)(void *);
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#else
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#define MY_THREAD_CREATE_JOINABLE PTHREAD_CREATE_JOINABLE
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#define MY_THREAD_CREATE_DETACHED PTHREAD_CREATE_DETACHED
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typedef void *(*my_start_routine)(void *);
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#endif
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static inline my_thread_t my_thread_self() {
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#ifdef _WIN32
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return GetCurrentThreadId();
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#else
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return pthread_self();
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#endif
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}
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static inline int my_thread_equal(my_thread_t t1, my_thread_t t2) {
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#ifdef _WIN32
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return t1 == t2;
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#else
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return pthread_equal(t1, t2);
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#endif
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}
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static inline int my_thread_attr_init(my_thread_attr_t *attr) {
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#ifdef _WIN32
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attr->dwStackSize = 0;
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/* Set to joinable by default to match Linux */
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attr->detachstate = MY_THREAD_CREATE_JOINABLE;
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return 0;
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#else
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return pthread_attr_init(attr);
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#endif
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}
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static inline int my_thread_attr_destroy(my_thread_attr_t *attr) {
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#ifdef _WIN32
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attr->dwStackSize = 0;
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/* Set to joinable by default to match Linux */
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attr->detachstate = MY_THREAD_CREATE_JOINABLE;
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return 0;
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#else
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return pthread_attr_destroy(attr);
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#endif
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}
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static inline int my_thread_attr_setstacksize(my_thread_attr_t *attr,
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size_t stacksize) {
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#ifdef _WIN32
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attr->dwStackSize = (DWORD)stacksize;
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return 0;
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#else
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return pthread_attr_setstacksize(attr, stacksize);
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#endif
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}
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static inline int my_thread_attr_setdetachstate(my_thread_attr_t *attr,
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int detachstate) {
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#ifdef _WIN32
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attr->detachstate = detachstate;
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return 0;
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#else
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return pthread_attr_setdetachstate(attr, detachstate);
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#endif
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}
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static inline int my_thread_attr_getstacksize(my_thread_attr_t *attr,
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size_t *stacksize) {
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#ifdef _WIN32
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*stacksize = (size_t)attr->dwStackSize;
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return 0;
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#else
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return pthread_attr_getstacksize(attr, stacksize);
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#endif
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}
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static inline void my_thread_yield() {
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#ifdef _WIN32
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SwitchToThread();
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#else
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sched_yield();
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#endif
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}
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int my_thread_create(my_thread_handle *thread, const my_thread_attr_t *attr,
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my_start_routine func, void *arg);
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int my_thread_join(my_thread_handle *thread, void **value_ptr);
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int my_thread_cancel(my_thread_handle *thread);
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void my_thread_exit(void *value_ptr) MY_ATTRIBUTE((noreturn));
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extern bool my_thread_global_init();
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extern void my_thread_global_reinit();
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extern void my_thread_global_end();
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// Need to be extern "C" for the time being, due to memcached.
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extern "C" bool my_thread_init();
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extern "C" void my_thread_end();
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#endif /* MY_THREAD_INCLUDED */
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