mirror of
https://github.com/openvswitch/ovs
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52 lines
1.8 KiB
C
52 lines
1.8 KiB
C
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/*
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* Copyright (c) 2008, 2009 Nicira Networks.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#ifndef TIMEVAL_H
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#define TIMEVAL_H 1
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#include <time.h>
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#include "type-props.h"
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#include "util.h"
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struct pollfd;
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struct timeval;
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/* POSIX allows floating-point time_t, but we don't support it. */
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BUILD_ASSERT_DECL(TYPE_IS_INTEGER(time_t));
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/* We do try to cater to unsigned time_t, but I want to know about it if we
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* ever encounter such a platform. */
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BUILD_ASSERT_DECL(TYPE_IS_SIGNED(time_t));
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#define TIME_MAX TYPE_MAXIMUM(time_t)
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#define TIME_MIN TYPE_MINIMUM(time_t)
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/* Interval between updates to the time reported by time_gettimeofday(), in ms.
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* This should not be adjusted much below 10 ms or so with the current
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* implementation, or too much time will be wasted in signal handlers and calls
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* to time(0). */
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#define TIME_UPDATE_INTERVAL 100
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void time_init(void);
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void time_refresh(void);
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time_t time_now(void);
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long long int time_msec(void);
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void time_timeval(struct timeval *);
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void time_alarm(unsigned int secs);
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int time_poll(struct pollfd *, int n_pollfds, int timeout);
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#endif /* timeval.h */
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