From: Thierry Reding <tred...@nvidia.com>
In legacy mode, the user can interrupt kmscube by pressing the return
key. Implement the same behaviour for atomic mode.
Signed-off-by: Thierry Reding <tred...@nvidia.com>
---
drm-atomic.c | 25 +++++++++++++++++++++++++
1 file changed, 25 insertions(+)
diff --git a/drm-atomic.c b/drm-atomic.c
index a68f036a9aab..30f978e1d873 100644
--- a/drm-atomic.c
+++ b/drm-atomic.c
@@ -27,6 +27,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <sys/select.h>
#include "common.h"
#include "drm-common.h"
@@ -179,6 +180,8 @@ static int atomic_run(const struct gbm *gbm, const struct
egl *egl)
struct drm_fb *fb;
uint32_t i = 0;
uint32_t flags = DRM_MODE_ATOMIC_NONBLOCK;
+ struct timeval timeout;
+ fd_set fds;
int ret;
if (egl_check(egl, eglDupNativeFenceFDANDROID) ||
@@ -274,6 +277,28 @@ static int atomic_run(const struct gbm *gbm, const struct
egl *egl)
/* Allow a modeset change for the first commit only. */
flags &= ~(DRM_MODE_ATOMIC_ALLOW_MODESET);
+
+ /* watch for user interruption */
+ FD_ZERO(&fds);
+ FD_SET(0, &fds);
+ memset(&timeout, 0, sizeof(timeout));
+
+ ret = select(1, &fds, NULL, NULL, &timeout);
+ if (ret < 0) {
+ printf("select() failed: %s\n", strerror(errno));
+ break;
+ }
+
+ /*
+ * select() will immediately timeout if there was no user
+ * interrupt because of the 0 timeout. However, that's an
+ * expected situation, not an error, so we just ignore it
+ * here.
+ */
+ if (FD_ISSET(0, &fds)) {
+ printf("user interrupted!\n");
+ break;
+ }
}
return ret;
--
2.16.3
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