Fix the call to clock_nanosleep(): we use a relative delay

diff --git a/fps-limit.c b/fps-limit.c
index 746c957..7759349 100644 (file)
--- a/fps-limit.c
+++ b/fps-limit.c
@@ -68,9 +68,10 @@ int main(void)
                timespecsub(&time_end, &time_start, &elapsed);
                dbg("Elapsed s: %ld ns: %ld", elapsed.tv_sec, elapsed.tv_nsec);
                if (elapsed.tv_sec == 0 && elapsed.tv_nsec < NSEC_PER_SEC / FPS) {
                timespecsub(&time_end, &time_start, &elapsed);
                dbg("Elapsed s: %ld ns: %ld", elapsed.tv_sec, elapsed.tv_nsec);
                if (elapsed.tv_sec == 0 && elapsed.tv_nsec < NSEC_PER_SEC / FPS) {

+                       /* remaining delay, _relative_ to time_end */

                        remaining.tv_nsec = (NSEC_PER_SEC / FPS) - elapsed.tv_nsec;
                        dbg("Sleeping for: ns: %ld", remaining.tv_nsec);
                        remaining.tv_nsec = (NSEC_PER_SEC / FPS) - elapsed.tv_nsec;
                        dbg("Sleeping for: ns: %ld", remaining.tv_nsec);

-                       clock_nanosleep(CLOCK_MONOTONIC, TIMER_ABSTIME, &remaining, NULL);
+                       clock_nanosleep(CLOCK_MONOTONIC, 0, &remaining, NULL);

                }
        }
 
                }
        }