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49 lines
1.7 KiB
C
49 lines
1.7 KiB
C
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#ifndef EL__UTIL_TIME_H
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#define EL__UTIL_TIME_H
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#ifdef HAVE_SYS_TIME_H
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#include <sys/time.h>
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#endif
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#ifdef HAVE_TIME_H
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#include <time.h>
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#endif
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typedef long milliseconds_T;
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#define MILLISECONDS_MAX ((milliseconds_T) (LONG_MAX / 1000L))
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#define ms_max(a, b) ((a) < (b) ? (b) : (a))
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#define ms_min(a, b) ((a) < (b) ? (a) : (b))
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/* Is using atol() in this way acceptable? It seems
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* non-portable to me; time_t might not be a long. -- Miciah */
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#define str_to_time_t(s) ((time_t) atol(s))
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/* Redefine a timeval that has all fields signed so calculations
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* will be simplified on rare systems that define timeval with
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* unsigned fields. */
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typedef struct { long sec; long usec; } timeval_T;
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timeval_T *timeval_from_milliseconds(timeval_T *t, milliseconds_T milliseconds);
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timeval_T *timeval_from_seconds(timeval_T *t, long seconds);
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timeval_T *timeval_from_double(timeval_T *t, double x);
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milliseconds_T sec_to_ms(long sec);
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milliseconds_T add_ms_to_ms(milliseconds_T a, milliseconds_T b);
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milliseconds_T mult_ms(milliseconds_T a, long lb);
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milliseconds_T timeval_to_milliseconds(timeval_T *t);
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long timeval_to_seconds(timeval_T *t);
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int timeval_is_positive(timeval_T *t);
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void timeval_limit_to_zero(timeval_T *t);
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timeval_T *timeval_now(timeval_T *t);
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timeval_T *timeval_sub(timeval_T *res, timeval_T *older, timeval_T *newer);
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timeval_T *timeval_add(timeval_T *res, timeval_T *base, timeval_T *t);
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int timeval_cmp(timeval_T *t1, timeval_T *t2);
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timeval_T *timeval_sub_interval(timeval_T *t, timeval_T *interval);
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timeval_T *timeval_add_interval(timeval_T *t, timeval_T *interval);
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int timeval_div_off_t(off_t n, timeval_T *t);
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#define timeval_copy(dst, src) copy_struct(dst, src)
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#endif
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