error: add return_error() and return_success() helper macros

2017-09-04 07:13:27 +02:00 · 2017-09-04 07:13:27 +02:00 · e967c93dad
commit e967c93dad
parent f353ab429e
1 changed files with 14 additions and 0 deletions
--- a/src/error.h
+++ b/src/error.h
@ -12,4 +12,18 @@ errno_t we_map_win_error_to_errno(DWORD error);
 void we_set_win_error(DWORD error);
 void we_clear_win_error(void);

+#define _return_error_helper(error, value) \
+  do {                                     \
+    we_set_win_error(error);               \
+    return (value);                        \
+  } while (0)
+
+#define return_error(value, ...) _return_error_helper(__VA_ARGS__ + 0, value)
+
+#define return_success(value) \
+  do {                        \
+    we_clear_win_error();     \
+    return (value);           \
+  } while (0)
+
 #endif /* ERROR_H_ */