From ab51ac11e68ce0b075688bf17fc89e0ba645b2ed Mon Sep 17 00:00:00 2001
From: David Härdeman <david@hardeman.nu>
Date: Sat, 20 Jun 2020 19:34:58 +0200
Subject: Add new assert macros, convert server.c to use them

---
 main.h | 55 +++++++++++++++++++++++++++++++++++--------------------
 1 file changed, 35 insertions(+), 20 deletions(-)

(limited to 'main.h')

diff --git a/main.h b/main.h
index 9d50bc8..ccd7221 100644
--- a/main.h
+++ b/main.h
@@ -46,17 +46,47 @@ void __debug(enum debug_lvl lvl, const char *fmt, ...) __attribute__((format(pri
 	} while (0)
 
 #define debug(lvl, fmt, ...)	__ifdebug((lvl), "%s:%s:%i: " fmt,		\
-					  __func__, __FILE__, __LINE__ 		\
+					  __FILE__, __func__, __LINE__ 		\
 					  __VA_OPT__(,) __VA_ARGS__)
 #define verbose(fmt, ...)	__ifdebug(DBG_VERBOSE, fmt, __VA_ARGS__)
 #define info(fmt, ...)		__ifdebug(DBG_INFO, fmt,  __VA_ARGS__)
-#define error(fmt, ...)		__ifdebug(DBG_ERROR, "%s: " fmt,		\
-					  __func__ __VA_OPT__(,) __VA_ARGS__)
+#define error(fmt, ...)		__ifdebug(DBG_ERROR, "%s:%s:%i: " fmt,		\
+					  __FILE__, __func__, __LINE__ 		\
+					  __VA_OPT__(,) __VA_ARGS__)
 
 void __die(const char *fmt, ...) __attribute__((format(printf, 1, 2)));
 
-#define die(fmt, ...)		__die("%s:%i: " fmt "\n", __func__,		\
-				      __LINE__  __VA_OPT__(,) __VA_ARGS__)
+#define die(fmt, ...)								\
+	__die("%s:%s:%i: " fmt "\n",						\
+	      __FILE__, __func__, __LINE__					\
+	      __VA_OPT__(,) __VA_ARGS__)
+
+#define assert_log(expr, msg) 							\
+	((expr) ?								\
+	 (true) :								\
+	 (__debug(DBG_ERROR, "%s:%s:%i: assertion \"" msg "\" failed\n",	\
+		  __FILE__, __func__, __LINE__), false))
+
+#define assert_return(expr, ...)						\
+	do {									\
+		if (!assert_log(expr, #expr))					\
+			return __VA_ARGS__;					\
+	} while (0)
+
+#define assert_task_alive_or(lvl, t, cmd) 	\
+do {						\
+	if (!(t)) {				\
+		error("invalid task\n");	\
+		cmd;				\
+	}					\
+						\
+	if ((t)->dead) {			\
+		debug((lvl), "task dead\n");	\
+		cmd;				\
+	}					\
+} while(0)
+
+#define assert_task_alive(lvl, t) assert_task_alive_or((lvl), (t), return)
 
 struct uring_task;
 
@@ -95,21 +125,6 @@ struct uring_task {
 	void *priv;
 };
 
-#define assert_task_alive_or(lvl, t, cmd) 	\
-do {						\
-	if (!(t)) {				\
-		error("invalid task\n");	\
-		cmd;				\
-	}					\
-						\
-	if ((t)->dead) {			\
-		debug((lvl), "task dead\n");	\
-		cmd;				\
-	}					\
-} while(0)
-
-#define assert_task_alive(lvl, t) assert_task_alive_or((lvl), (t), return)
-
 struct cfg {
 	uid_t uid;
 	gid_t gid;
-- 
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