mirrors/haproxy
1
0
Fork 0
mirror of https://git.haproxy.org/git/haproxy.git/ synced 2025-08-13 18:46:57 +02:00
Code Issues Projects Releases Wiki Activity

DEBUG: make the _BUG_ON() macro return the condition

Browse Source 
By doing so it now becomes an expression and will allow for example
to use WARN_ON() in tests, for example:

    if (WARN_ON(cond))
       return NULL;
This commit is contained in:
Willy Tarreau 2022-02-25 09:10:26 +01:00
parent 305cfbde43
commit a79db30c63
1 changed files with 7 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
include/haproxy/bug.h
View File

@ -52,14 +52,16 @@
/* This is the generic low-level macro dealing with conditional warnings and /* This is the generic low-level macro dealing with conditional warnings and
* bugs. The caller decides whether to crash or not and what prefix and suffix * bugs. The caller decides whether to crash or not and what prefix and suffix
* to pass. * to pass. The macro returns the boolean value of the condition as an int for
* the case where it wouldn't die.
*/ */
#define _BUG_ON(cond, file, line, crash, pfx, sfx) \ #define _BUG_ON(cond, file, line, crash, pfx, sfx) \
__BUG_ON(cond, file, line, crash, pfx, sfx) __BUG_ON(cond, file, line, crash, pfx, sfx)
#define __BUG_ON(cond, file, line, crash, pfx, sfx) \ #define __BUG_ON(cond, file, line, crash, pfx, sfx) \
do { \ ({ \
if (unlikely(cond)) { \ int __bug_cond = !!(cond); \
if (unlikely(__bug_cond)) { \
const char msg[] = "\n" pfx "condition \"" #cond "\" matched at " file ":" #line "" sfx "\n"; \ const char msg[] = "\n" pfx "condition \"" #cond "\" matched at " file ":" #line "" sfx "\n"; \
DISGUISE(write(2, msg, __builtin_strlen(msg))); \ DISGUISE(write(2, msg, __builtin_strlen(msg))); \
if (crash) \ if (crash) \
@ -67,7 +69,8 @@
else \ else \
DUMP_TRACE(); \ DUMP_TRACE(); \
} \ } \
} while (0) __bug_cond; /* let's return the condition */ \
})
/* BUG_ON: complains if <cond> is true when DEBUG_STRICT or DEBUG_STRICT_NOCRASH /* BUG_ON: complains if <cond> is true when DEBUG_STRICT or DEBUG_STRICT_NOCRASH
* are set, does nothing otherwise. With DEBUG_STRICT in addition it immediately * are set, does nothing otherwise. With DEBUG_STRICT in addition it immediately