alarm(1) before SEM_WAIT(...) in worker_(sdl|gl) to avoid edge cases

1 files changed, 8 insertions, 0 deletions

diff --git a/src/main.h b/src/main.h
index 363a614..313dabf 100644
--- a/src/main.h
+++ b/src/main.h
@@ -11,6 +11,14 @@
 #define FBUF_W 256
 #define FBUF_H 256
 
+#ifdef DEBUG
+#define TRACE(hint) do { printf("%s(): %s\n", __func__, hint); fflush(stdout); } while(0)
+#define TRACE_ONCE(hint) if (firsttime) { printf("%s(): %s\n", __func__, hint); fflush(stdout); firsttime=0; }
+#else
+#define TRACE(hint)
+#define TRACE_ONCE(hint)
+#endif
+
 typedef struct {
 	// libcaca
 	caca_display_t *dp;