diff options
Diffstat (limited to 'benchmarks/kms_vblank.c')
| -rw-r--r-- | benchmarks/kms_vblank.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/benchmarks/kms_vblank.c b/benchmarks/kms_vblank.c index f9dbe3d0..3d2f9772 100644 --- a/benchmarks/kms_vblank.c +++ b/benchmarks/kms_vblank.c @@ -41,6 +41,7 @@ #include <drm.h> #include <xf86drm.h> #include "drmtest.h" +#include "assert.h" static double elapsed(const struct timespec *start, const struct timespec *end, @@ -89,7 +90,7 @@ static void vblank_query(int fd, int busy) printf("%f\n", 1e6/elapsed(&start, &end, count)); if (busy) - read(fd, &event, sizeof(event)); + assert(read(fd, &event, sizeof(event)) != -1); } static void vblank_event(int fd, int busy) @@ -118,14 +119,14 @@ static void vblank_event(int fd, int busy) vbl.request.sequence = 0; drmIoctl(fd, DRM_IOCTL_WAIT_VBLANK, &vbl); - read(fd, &event, sizeof(event)); + assert(read(fd, &event, sizeof(event)) != -1); count++; } while ((event.sequence - seq) <= 120); clock_gettime(CLOCK_MONOTONIC, &end); printf("%f\n", 1e6/elapsed(&start, &end, count)); if (busy) - read(fd, &event, sizeof(event)); + assert(read(fd, &event, sizeof(event)) != -1); } int main(int argc, char **argv) |