mirror of https://github.com/F-Stack/f-stack.git
30 lines
577 B
C
30 lines
577 B
C
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/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright 2020 Mellanox Technologies, Ltd
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*/
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#include <time.h>
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#include <rte_cycles.h>
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void
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rte_delay_us_sleep(unsigned int us)
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{
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struct timespec wait[2];
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int ind = 0;
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wait[0].tv_sec = 0;
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if (us >= US_PER_S) {
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wait[0].tv_sec = us / US_PER_S;
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us -= wait[0].tv_sec * US_PER_S;
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}
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wait[0].tv_nsec = 1000 * us;
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while (nanosleep(&wait[ind], &wait[1 - ind]) && errno == EINTR) {
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/*
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* Sleep was interrupted. Flip the index, so the 'remainder'
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* will become the 'request' for a next call.
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*/
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ind = 1 - ind;
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}
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}
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