mirror of
https://github.com/openvswitch/ovs
synced 2025-10-19 14:37:21 +00:00
5453ae2067
In C, one can do preprocessor tricks by making a macro expansion include
the macro's own name. We actually used this in the tree to automatically
provide function arguments, e.g.:
int f(int x, const char *file, int line);
#define f(x) f(x, __FILE__, __LINE__)
...
f(1); /* Expands to a call like f(1, __FILE__, __LINE__); */
However it's somewhat confusing, so this commit stops using that trick.
Reported-by: Ed Maste <emaste@freebsd.org>
Signed-off-by: Ben Pfaff <blp@nicira.com>
Acked-by: Ed Maste <emaste@freebsd.org>
75 lines
1.8 KiB
C
75 lines
1.8 KiB
C
/*
|
|
* Copyright (c) 2011, 2013 Nicira, Inc.
|
|
*
|
|
* Licensed under the Apache License, Version 2.0 (the "License");
|
|
* you may not use this file except in compliance with the License.
|
|
* You may obtain a copy of the License at:
|
|
*
|
|
* http://www.apache.org/licenses/LICENSE-2.0
|
|
*
|
|
* Unless required by applicable law or agreed to in writing, software
|
|
* distributed under the License is distributed on an "AS IS" BASIS,
|
|
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
* See the License for the specific language governing permissions and
|
|
* limitations under the License.
|
|
*/
|
|
|
|
#ifndef TIMER_H
|
|
#define TIMER_H 1
|
|
|
|
#include <stdbool.h>
|
|
|
|
#include "timeval.h"
|
|
#include "util.h"
|
|
|
|
struct timer {
|
|
long long int t;
|
|
};
|
|
|
|
long long int timer_msecs_until_expired(const struct timer *);
|
|
void timer_wait_at(const struct timer *, const char *where);
|
|
#define timer_wait(timer) timer_wait_at(timer, SOURCE_LOCATOR)
|
|
|
|
/* Causes 'timer' to expire when 'duration' milliseconds have passed.
|
|
*
|
|
* May be used to initialize 'timer'. */
|
|
static inline void
|
|
timer_set_duration(struct timer *timer, long long int duration)
|
|
{
|
|
timer->t = time_msec() + duration;
|
|
}
|
|
|
|
/* Causes 'timer' never to expire.
|
|
*
|
|
* May be used to initialize 'timer'. */
|
|
static inline void
|
|
timer_set_infinite(struct timer *timer)
|
|
{
|
|
timer->t = LLONG_MAX;
|
|
}
|
|
|
|
/* Causes 'timer' to expire immediately.
|
|
*
|
|
* May be used to initialize 'timer'. */
|
|
static inline void
|
|
timer_set_expired(struct timer *timer)
|
|
{
|
|
timer->t = LLONG_MIN;
|
|
}
|
|
|
|
/* True if 'timer' has expired. */
|
|
static inline bool
|
|
timer_expired(const struct timer *timer)
|
|
{
|
|
return time_msec() >= timer->t;
|
|
}
|
|
|
|
/* Returns ture if 'timer' will never expire. */
|
|
static inline bool
|
|
timer_is_infinite(const struct timer *timer)
|
|
{
|
|
return timer->t == LLONG_MAX;
|
|
}
|
|
|
|
#endif /* timer.h */
|