53 lines
1.5 KiB
C
53 lines
1.5 KiB
C
#include "stopwatch.h"
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struct timing_fx _static_tfx;
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struct timing_fx* static_tfx() { return &_static_tfx; }
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void timing_fx_init(struct timing_fx* tfx, enum timing_config conf, char* startt, char* endt) {
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tfx->config = conf;
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strncpy (tfx->start_template, startt, sizeof(tfx->start_template) - 1);
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strncpy (tfx->end_template, endt, sizeof(tfx->end_template) - 1);
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tfx->start_template[sizeof(tfx->start_template) - 1] = 0; // Enforce null terminated string
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tfx->end_template[sizeof(tfx->end_template) - 1] = 0;
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}
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void timing_fx_start(struct timing_fx* tfx, ...) {
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va_list args;
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if (!(tfx->config & TIMING_ACTIVATED)) return;
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if (tfx->config & (TIMING_DISPLAY_START | TIMING_DISPLAY_BOTH)) {
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va_start(args, tfx);
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vfprintf(stderr, tfx->start_template, args);
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va_end(args);
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}
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if (clock_gettime(CLOCK_MONOTONIC_RAW, &tfx->start) == -1) {
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perror("clock_gettime");
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exit(EXIT_FAILURE);
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}
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}
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double timing_fx_stop(struct timing_fx* tfx, ...) {
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va_list args;
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struct timespec stop;
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double elapsed_in_cb;
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if (!(tfx->config & TIMING_ACTIVATED)) return 0.;
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if (clock_gettime(CLOCK_MONOTONIC_RAW, &stop) == -1) {
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perror("clock_gettime");
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exit(EXIT_FAILURE);
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}
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elapsed_in_cb = (double)elapsed_micros (&tfx->start, &stop) / 1000000.;
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if (tfx->config & (TIMING_DISPLAY_END | TIMING_DISPLAY_BOTH)) {
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va_start(args, tfx);
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vfprintf(stderr, tfx->end_template, args);
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fprintf(stderr, ": done in %f sec\n", elapsed_in_cb);
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va_end(args);
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}
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return elapsed_in_cb;
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}
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