homework-jianmu/source/os/src/osSleep.c

60 lines
1.5 KiB
C

/*
* Copyright (c) 2019 TAOS Data, Inc. <jhtao@taosdata.com>
*
* This program is free software: you can use, redistribute, and/or modify
* it under the terms of the GNU Affero General Public License, version 3
* or later ("AGPL"), as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#define _DEFAULT_SOURCE
#include "os.h"
#if defined(_TD_WINDOWS_64) || defined(_TD_WINDOWS_32)
void taosMsleep(int32_t ms) { Sleep(ms); }
#else
#include <unistd.h>
/*
to make taosMsleep work,
signal SIGALRM shall be blocked in the calling thread,
sigset_t set;
sigemptyset(&set);
sigaddset(&set, SIGALRM);
pthread_sigmask(SIG_BLOCK, &set, NULL);
*/
void taosMsleep(int32_t mseconds) {
#if 1
usleep(mseconds * 1000);
#else
struct timeval timeout;
int32_t seconds, useconds;
seconds = mseconds / 1000;
useconds = (mseconds % 1000) * 1000;
timeout.tv_sec = seconds;
timeout.tv_usec = useconds;
/* sigset_t set; */
/* sigemptyset(&set); */
/* sigaddset(&set, SIGALRM); */
/* pthread_sigmask(SIG_BLOCK, &set, NULL); */
select(0, NULL, NULL, NULL, &timeout);
/* pthread_sigmask(SIG_UNBLOCK, &set, NULL); */
#endif
}
#endif