libwebsockets之日志系统

haiyanglideshi2024-09-12 18:55

libwebsockets日志系统也是分等级的，如下:

cpp 复制代码

 #define LLL_ERR     (1 << 0)
 #define LLL_WARN    (1 << 1)
 #define LLL_NOTICE  (1 << 2)
 #define LLL_INFO    (1 << 3)
 #define LLL_DEBUG   (1 << 4)
 #define LLL_PARSER  (1 << 5)
 #define LLL_HEADER  (1 << 6)
 #define LLL_EXT     (1 << 7)
 #define LLL_CLIENT  (1 << 8)
 #define LLL_LATENCY (1 << 9)
 #define LLL_USER    (1 << 10)
 #define LLL_THREAD  (1 << 11)

 #define LLL_COUNT   (12) /* set to count of valid flags */

 NORMAL   masterɆ  include/libwebsockets/lws-logs.h

要想打印日志，除了设置对应的等级外还需:

关闭宏定义LWS_WITH_NO_LOGS
lws_set_log_level((1<<LLL_COUNT)-1, NULL)设置动态日志等级

cpp 复制代码

/*
 * Figure out which logs to build in or not
 */

#if defined(_DEBUG)
 /*
  * In DEBUG build, select all logs unless NO_LOGS
  */
 #if defined(LWS_WITH_NO_LOGS)
  #define _LWS_LINIT (LLL_ERR | LLL_USER)
 #else
   #define _LWS_LINIT ((1 << LLL_COUNT) - 1)
 #endif
#else /* not _DEBUG */
#if defined(LWS_WITH_NO_LOGS)
#define _LWS_LINIT (LLL_ERR | LLL_USER)
#else
 #define _LWS_LINIT (LLL_ERR | LLL_USER | LLL_WARN | LLL_NOTICE)
#endif
#endif /* _DEBUG */

cpp 复制代码

lws_set_log_level((1<<LLL_COUNT)-1, NULL);