52 lines
802 B
C
52 lines
802 B
C
/* Copyright (c) 2021-2023 Barcelona Supercomputing Center (BSC)
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* SPDX-License-Identifier: MIT */
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#define _GNU_SOURCE /* Only here */
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#include "compat.h"
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#include <errno.h>
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#include <features.h>
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#include <unistd.h>
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/* Define gettid for older glibc versions (below 2.30) */
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#if defined(__GLIBC__)
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#if !__GLIBC_PREREQ(2, 30)
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#include <sys/syscall.h>
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static pid_t
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gettid(void)
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{
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return (pid_t) syscall(SYS_gettid);
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}
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#endif /* !__GLIBC_PREREQ(2, 30) */
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#endif /* defined(__GLIBC__) */
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pid_t
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get_tid(void)
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{
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return gettid();
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}
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int
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sleep_us(long usec)
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{
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struct timespec ts;
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int res;
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if (usec < 0) {
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errno = EINVAL;
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return -1;
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}
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ts.tv_sec = usec / 1000000L;
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ts.tv_nsec = (usec % 1000000L) * 1000L;
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do {
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res = nanosleep(&ts, &ts);
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} while (res && errno == EINTR);
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return res;
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}
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