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author | Marek Vavruša <marek.vavrusa@nic.cz> | 2015-07-15 17:20:04 +0200 |
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committer | Marek Vavruša <marek.vavrusa@nic.cz> | 2015-07-15 17:20:15 +0200 |
commit | 931d736540012dd8a770650434b3d901434930e3 (patch) | |
tree | 6bec07df7cdbe8b26e18278d3753f28b64cb8991 /contrib/ucw | |
parent | daemon/io: use recvmmsg for master sockets, recvmsg otherwise (diff) | |
download | knot-resolver-931d736540012dd8a770650434b3d901434930e3.tar.xz knot-resolver-931d736540012dd8a770650434b3d901434930e3.zip |
daemon/worker: cleanup and fixed early memset
Diffstat (limited to 'contrib/ucw')
-rw-r--r-- | contrib/ucw/lib.h | 123 |
1 files changed, 1 insertions, 122 deletions
diff --git a/contrib/ucw/lib.h b/contrib/ucw/lib.h index bd4612f1..1363eb5a 100644 --- a/contrib/ucw/lib.h +++ b/contrib/ucw/lib.h @@ -87,7 +87,6 @@ #ifdef __GNUC__ -#undef inline #define NONRET __attribute__((noreturn)) /** Function does not return **/ #define UNUSED __attribute__((unused)) /** Variable/parameter is knowingly unused **/ #define CONSTRUCTOR __attribute__((constructor)) /** Call function upon start of program **/ @@ -124,128 +123,8 @@ * === Basic logging functions (see <<log:,Logging>> and <ucw/log.h> for more) ***/ -enum log_levels { /** The available log levels to pass to msg() and friends. **/ - L_DEBUG=0, // 'D' - Debugging - L_INFO, // 'I' - Informational - L_WARN, // 'W' - Warning - L_ERROR, // 'E' - Error, but non-critical - L_INFO_R, // 'i' - An alternative set of levels for messages caused by remote events - L_WARN_R, // 'w' (e.g., a packet received via network) - L_ERROR_R, // 'e' - L_FATAL, // '!' - Fatal error - L_MAX -}; - -#define LOG_LEVEL_NAMES P(DEBUG) P(INFO) P(WARN) P(ERROR) P(INFO_R) P(WARN_R) P(ERROR_R) P(FATAL) - -// Return the letter associated with a given severity level -#define LS_LEVEL_LETTER(level) ("DIWEiwe!###"[( level )]) - -#define L_SIGHANDLER 0x80000000 /** Avoid operations that are unsafe in signal handlers **/ -#define L_LOGGER_ERR 0x40000000 /** Used internally to avoid infinite reporting of logging errors **/ - -/** - * This is the basic printf-like function for logging a message. - * The @flags contain the log level and possibly other flag bits (like `L_SIGHANDLER`). - **/ -void msg(uint flags, const char *fmt, ...) FORMAT_CHECK(printf,2,3); -void vmsg(uint flags, const char *fmt, va_list args); /** A vararg version of msg(). **/ -void die(const char *, ...) NONRET FORMAT_CHECK(printf,1,2); /** Log a fatal error message and exit the program. **/ -void vdie(const char *fmt, va_list args) NONRET; /** va_list version of die() **/ - -extern char *log_title; /** An optional log message title. Set to program name by log_init(). **/ -extern int log_pid; /** An optional PID printed in each log message. Set to 0 if it shouldn't be logged. **/ -extern void (*log_die_hook)(void); /** An optional function called just before die() exists. **/ // API: log_die_hook - -void log_init(const char *argv0); /** Set @log_title to the program name extracted from @argv[0]. **/ -void log_fork(void); /** Call after fork() to update @log_pid. **/ -void log_file(const char *name); /** Establish logging to the named file. Also redirect stderr there. **/ - -void assert_failed(const char *assertion, const char *file, int line) NONRET; -void assert_failed_msg(const char *assertion, const char *file, int line, const char *fmt, ...) NONRET FORMAT_CHECK(printf,4,5); -void assert_failed_noinfo(void) NONRET; - -#ifdef DEBUG_ASSERTS -/** - * Check an assertion. If the condition @x is false, stop the program with a fatal error. - * Assertion checks are compiled only when `DEBUG_ASSERTS` is defined. - **/ -#define ASSERT(x) ({ if (unlikely(!(x))) assert_failed(#x, __FILE__, __LINE__); 1; }) - -/** - * Check an assertion with a debug message. If the condition @cond is false, - * print the message and stop the program with fatal error. - * Assertion checks are compiled only when `DEBUG_ASSERTS` is defined. - **/ -#define ASSERT_MSG(cond,str,x...) ({ if (unlikely(!(cond))) assert_failed_msg(#cond, __FILE__, __LINE__, str,##x); 1; }) - -#else -#define ASSERT(x) ({ if (__builtin_constant_p(x) && !(x)) assert_failed_noinfo(); 1; }) -#define ASSERT_MSG(cond,str,x...) ASSERT(cond) -#endif - -#define COMPILE_ASSERT(name,x) typedef char _COMPILE_ASSERT_##name[!!(x)-1] - -#ifdef LOCAL_DEBUG -#define DBG(x,y...) msg(L_DEBUG, x,##y) /** If `LOCAL_DEBUG` is defined before including <ucw/lib.h>, log a debug message. Otherwise do nothing. **/ -/** - * If `LOCAL_DEBUG` is defined before including <ucw/lib.h>, log current - * file name and line number. Otherwise do nothing. - **/ -#define DBG_SPOT msg(L_DEBUG, "%s:%d (%s)", __FILE__, __LINE__, __func__) -#else #define DBG(x,y...) do { } while(0) #define DBG_SPOT do { } while(0) -#endif - -#ifdef DEBUG_ASSERTS -/** - * Sometimes, we may want to check that a pointer points to a valid memory - * location before we start using it for anything more complicated. This - * macro checks pointer validity by reading the byte it points to. - **/ -#define ASSERT_READABLE(ptr) ({ volatile char *__p = (ptr); *__p; }) -/** Like the previous macro, but it checks writeability, too. **/ -#define ASSERT_WRITEABLE(ptr) ({ volatile char *__p = (ptr); *__p = *__p; }) -#else -#define ASSERT_READABLE(ptr) do { } while(0) -#define ASSERT_WRITEABLE(ptr) do { } while(0) -#endif - -/*** === Memory allocation ***/ - -/* - * Unfortunately, several libraries we might want to link to define - * their own xmalloc and we don't want to interfere with them, hence - * the renaming. - */ -#define xmalloc ucw_xmalloc -#define xrealloc ucw_xrealloc -#define xfree ucw_xfree - -void *xmalloc(size_t) LIKE_MALLOC; /** Allocate memory and die() if there is none. **/ -void *xrealloc(void *, size_t); /** Reallocate memory and die() if there is none. **/ -void xfree(void *); /** Free memory allocated by xmalloc() or xrealloc(). **/ - -void *xmalloc_zero(size_t) LIKE_MALLOC; /** Allocate memory and fill it by zeroes. **/ -char *xstrdup(const char *) LIKE_MALLOC; /** Make a xmalloc()'ed copy of a string. Returns NULL for NULL string. **/ - -/* bigalloc.c */ - -void *page_alloc(u64 len) LIKE_MALLOC; // Internal: allocates a multiple of CPU_PAGE_SIZE bytes with mmap -void *page_alloc_zero(u64 len) LIKE_MALLOC; -void page_free(void *start, u64 len); -void *page_realloc(void *start, u64 old_len, u64 new_len); - -void *big_alloc(u64 len) LIKE_MALLOC; /** Allocate a large memory block in the most efficient way available. **/ -void *big_alloc_zero(u64 len) LIKE_MALLOC; /** Allocate and clear a large memory block. **/ -void big_free(void *start, u64 len); /** Free block allocated by @big_alloc() or @big_alloc_zero(). **/ - -/*** === Random numbers (random.c) ***/ - -uint random_u32(void); /** Return a pseudorandom 32-bit number. **/ -uint random_max(uint max); /** Return a pseudorandom 32-bit number in range [0,@max). **/ -u64 random_u64(void); /** Return a pseudorandom 64-bit number. **/ -u64 random_max_u64(u64 max); /** Return a pseudorandom 64-bit number in range [0,@max). **/ +#define ASSERT(x) #endif |