ACE的 日志

http://wenku.baidu.com/link?url=dK6j9_0pICRjxWW7usBlkCxPTa8zFSPyUe_uWAkwMPFDU4ip_tEfxpOitxjkl3RuPy3D7g7YeAyyH1TFj69F0CR0b-1uuqmvBIcMcyD94Ca

可以看出ACE日志系统的宏调用非常简单： ACE_XXX((severity, formatting-args));

其中，ACE_XXX表示日志输出宏（ACE Logging Macros），包括：ACE_ERROR((level, string, ...))ACE_DEBUG((level, string, ...))ACE_TRACE(string)ACE_ASSERT(test)ACE_HEX_DUMP((level, buffer, size [,text]))ACE_RETURN(value)ACE_ERROR_RETURN((level, string, ...), value)ACE_ERROR_INIT( value, flags )ACE_ERROR_BREAK((level, string, ...))

severity即输出的严重等级（Severity Level），包括：LM_TRACE  Messages indicating function-calling sequenceLM_DEBUG  Debugging informationLM_INFO   Messages that contain information normally of use only when debugging a programLM_NOTICE  Conditions that are not error conditions but that may require special handlingLM_WARNING  Warning messagesLM_ERROR  Error messagesLM_CRITICAL  Critical conditions, such as hard device errorsLM_ALERT  A condition that should be corrected immediately, such as a corrupted databaseLM_EMERGENCY     A panic condition, normally broadcast to all usersLM_TRACE Messages indicating                 function-calling sequence

formatting-args是要输出的内容，格式类似于printf函数的输出格式：

Code        Argument Type   Displays

A           ACE_timer_t     浮点数a           —              导致程序终止（Abort）c           char            单个字符C           char*           字符串（narrow characters）i,d         int             10进制整数I           —              缩进e,E,f,F,g,G double          双精度浮点数l           —              行号M           —              severity level的名称m           —              错误号（errorno）N           —              文件名n           —              ACE_Log_Msg::open()指定的程序名o           int             八进制整数P           —              当前进程IDp           ACE_TCHAR*      字符串，后接错误号，同perrorQ           ACE_UINT64      64位无符号十进制整数r           void (*)()      函数调用R           int             十进制整数S           int             数字对应的信号名称s           ACE_TCHAR*      ACE_TCHAR类型的字符串T           —              当前时间（hour:minute:sec.usec）D           —              时戳（month/day/year/hour:minute:sec.usec）t           —              当前线程IDu           int             无符号十进制整数w           wchar_t         Single wide characterW           wchar_t*        Wide-character stringx,X         int             十六进制数@           void*           指针（十六进制）%           N/A             %