X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fshared%2Fmacro.h;h=7ae1ed80b6d0d9658672e3bc58d0f6084ad1d7f7;hb=30ab6a0fc1bb950c4dcd90dcd3dfe00a810c7fc1;hp=7f89951d62e00ee5f68809e017c2572f1e174770;hpb=b7ce6b592d8908d378904323a4a6670bfe0b7ab1;p=elogind.git

diff --git a/src/shared/macro.h b/src/shared/macro.h
index 7f89951d6..7ae1ed80b 100644
--- a/src/shared/macro.h
+++ b/src/shared/macro.h
@@ -256,6 +256,15 @@ static inline unsigned long ALIGN_POWER2(unsigned long u) {
                 }                                                       \
         } while (false)
 
+#define assert_return_errno(expr, r, err)                               \
+        do {                                                            \
+                if (_unlikely_(!(expr))) {                              \
+                        log_assert_failed_return(#expr, __FILE__, __LINE__, __PRETTY_FUNCTION__); \
+                        errno = err;                                    \
+                        return (r);                                     \
+                }                                                       \
+        } while (false)
+
 #define PTR_TO_INT(p) ((int) ((intptr_t) (p)))
 #define INT_TO_PTR(u) ((void *) ((intptr_t) (u)))
 #define PTR_TO_UINT(p) ((unsigned int) ((uintptr_t) (p)))