1 files changed, 4 insertions, 0 deletions
diff --git a/tetris.h b/tetris.h
index 3a201fa..9ea9fdc 100644
--- a/tetris.h
+++ b/tetris.h
@@ -1,5 +1,9 @@
 #ifndef TETRIS_H
 #define TETRIS_H
+typedef struct THREADARG_STRUCT {
+	int *cancellation_token;
+	void *ret;
+} thread_arg_t;
 void interrupt_handler(int sig);
 void die(void);
 #endif