wiesendsi102436/info2Praktikum-DobleSpiel
1
0
Fork 0
forked from freudenreichan/info2Praktikum-DobleSpiel
Code Pull Requests Activity

fix: timers on Linux

Browse Source 
On Linux the clock() function measures cpu time instead of wall time. This change uses the Apple code path for Linux.
This commit is contained in:
Simon Wiesend 2025-11-30 10:34:01 +01:00
parent c325131503
commit 4880a9d2f4
Signed by: wiesendsi102436
GPG Key ID: C18A833054142CF0
1 changed files with 11 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

15
timer.c
View File

@ -1,6 +1,12 @@
#include "timer.h"
#if __APPLE__
#ifdef __linux__
// Defines strict posix compliance for CLOCK_MONOTONIC
#define _POSIX_C_SOURCE 199309L
#include <time.h>
#endif
#if __APPLE__ || __linux__
#include <sys/time.h>
static struct timespec start = {0, 0};
@ -14,14 +20,15 @@ void startTimer()
double stopTimer()
{
struct timespec end;
clock_gettime(CLOCK_MONOTONIC, &end);
unsigned long long delta_us = (end.tv_sec - start.tv_sec) * 1000000 + (end.tv_nsec - start.tv_nsec) / 1000;
double measuredSeconds = (double)delta_us / 1000000.;
if(start.tv_nsec > 0) {
if (start.tv_nsec > 0)
{
start.tv_nsec = 0;
start.tv_sec = 0;
}
@ -45,7 +52,7 @@ double stopTimer()
{
double measuredSeconds = (clock() - (double)startClocks) / CLOCKS_PER_SEC;
if(startClocks > 0)
if (startClocks > 0)
startClocks = 0;
else
measuredSeconds = -1;