} \
} 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)))
/* Returns the number of chars needed to format variables of the
* specified type as a decimal string. Adds in extra space for a
- * negative '-' prefix. */
+ * negative '-' prefix (hence works correctly on signed
+ * types). Includes space for the trailing NUL. */
#define DECIMAL_STR_MAX(type) \
(2+(sizeof(type) <= 1 ? 3 : \
sizeof(type) <= 2 ? 5 : \
} \
struct __useless_struct_to_allow_trailing_semicolon__
+#define CMSG_FOREACH(cmsg, mh) \
+ for ((cmsg) = CMSG_FIRSTHDR(mh); (cmsg); (cmsg) = CMSG_NXTHDR((mh), (cmsg)))
+
#include "log.h"