53 lines
1.2 KiB
C
53 lines
1.2 KiB
C
#ifndef UTIL_H
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#define UTIL_H
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#include <sys/time.h>
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#include <time.h>
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inline double tv_to_double(struct timeval *tv) {
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return tv->tv_sec + (double) tv->tv_usec / 1000000;
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}
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inline void double_to_tv(double val, struct timeval *tv) {
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long long secs = (long long) val;
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long long usecs = (long long) ((val - secs) * 1000000);
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tv->tv_sec = secs;
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tv->tv_usec = usecs;
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}
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inline double get_time_accurate() {
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#if USE_CLOCK_GETTIME
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struct timespec ts;
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clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
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// clock_gettime(CLOCK_REALTIME, &ts);
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return ts.tv_sec + (double) ts.tv_nsec / 1000000000;
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#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv_to_double(&tv);
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#endif
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}
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inline double get_time() {
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//#if USE_CLOCK_GETTIME
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// struct timespec ts;
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// clock_gettime(CLOCK_MONOTONIC_RAW, &ts);
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// // clock_gettime(CLOCK_REALTIME, &ts);
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// return ts.tv_sec + (double) ts.tv_nsec / 1000000000;
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//#else
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struct timeval tv;
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gettimeofday(&tv, NULL);
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return tv_to_double(&tv);
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//#endif
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}
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void sleep_time(double duration);
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uint64_t fnv_64_buf(const void* buf, size_t len);
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inline uint64_t fnv_64(uint64_t in) { return fnv_64_buf(&in, sizeof(in)); }
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void generate_key(int n, int length, char *buf);
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#endif // UTIL_H
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