add nyx_warn_once() macro

2022-12-30 09:28:12 +01:00 · 2022-12-30 09:28:12 +01:00 · 1a134e93d8
commit 1a134e93d8
parent 0fb4268b3e
1 changed files with 8 additions and 0 deletions
--- a/nyx/debug.h
+++ b/nyx/debug.h
@ -41,6 +41,14 @@
 #define nyx_warn(format, ...)   qemu_log(NYX_LOG_PREFIX "Warning: " format, ##__VA_ARGS__)
 #define nyx_trace(format, ...)  nyx_debug("=> %s\n", __func__)

+#define nyx_warn_once(format, ...)                      \
+    ({                                                  \
+        static bool _printed = false;                   \
+        if (_printed == false){                         \
+            _printed = true;                            \
+            nyx_warn(format, ##__VA_ARGS__);            \
+        }                                               \
+    })

 #ifdef ENABLE_BACKTRACES
 void qemu_backtrace(void);