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9a9e74250d
As of today, macOS or OS X still does not implement clock_nanosleep() according to this project: https://github.com/ChisholmKyle/PosixMachTiming
59 lines
1.5 KiB
C
59 lines
1.5 KiB
C
#ifndef HEADER_UTILS_H
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#define HEADER_UTILS_H
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#include <stdio.h> /* For type FILE. */
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#include <sys/time.h> /* For struct timeval. */
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#include <stdint.h> /* For type uint64_t. */
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#include <argp.h> /* For struct argp_state. */
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#define SECTOR_SIZE (512)
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#define GIGABYTES (1024 * 1024 * 1024)
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const char *adjust_unit(double *ptr_bytes);
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/* Return true if @filename matches the regex /^[0-9]+\.h2w$/ */
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int is_my_file(const char *filename);
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/* Caller must free(3) the returned pointer. */
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char *full_fn_from_number(const char **filename, const char *path, long num);
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static inline int64_t delay_ms(const struct timeval *t1,
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const struct timeval *t2)
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{
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return (int64_t)(t2->tv_sec - t1->tv_sec) * 1000 +
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(t2->tv_usec - t1->tv_usec) / 1000;
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}
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void msleep(double wait_ms);
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const long *ls_my_files(const char *path, long start_at, long end_at);
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void print_header(FILE *f, const char *name);
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static inline uint64_t random_number(uint64_t prv_number)
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{
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return prv_number * 4294967311ULL + 17;
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}
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#define UNUSED(x) ((void)x)
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long arg_to_long(const struct argp_state *state, const char *arg);
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#if __APPLE__ && __MACH__
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#include <unistd.h> /* For type off_t. */
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#define POSIX_FADV_SEQUENTIAL 2 /* Expect sequential page references. */
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#define POSIX_FADV_DONTNEED 4 /* Don't need these pages. */
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int fdatasync(int fd);
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int posix_fadvise(int fd, off_t offset, off_t len, int advice);
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#endif /* Apple Macintosh */
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#ifdef __FreeBSD__
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#define fdatasync(fd) fsync(fd)
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#endif
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#endif /* HEADER_UTILS_H */
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