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•作为一种通信机制，每个系统上都有两个 ZMQ 队列，用于发送和接收日志数据和配置。这样，每个模块也能接收到系统日志服务器广播的配置（日志级别......）。
 

•基于上述原因，每个模块都应具有一个 init 函数
 

 EXOS_ERROR_CODE exos_log_init(exos_log_handle_t *log, const char *module_name);
 

▪此外，为了接收配置（并激活本地日志记录器），还需要一个循环接收函数
 

 EXOS_ERROR_CODE exos_log_process(const exos_log_handle_t *log);
 

▪要按一定的严重性级别记录日志，每个级别都有记录日志的功能
 

 EXOS_ERROR_CODE exos_log_error(const exos_log_handle_t *log, char *format, ...);
 EXOS_ERROR_CODE exos_log_success(const exos_log_handle_t *log, EXOS_LOG_TYPE type, char *format, ...);
 EXOS_ERROR_CODE exos_log_info(const exos_log_handle_t *log, EXOS_LOG_TYPE type, char *format, ...);
 EXOS_ERROR_CODE exos_log_debug(const exos_log_handle_t *log, EXOS_LOG_TYPE type, char *format, ...);

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•As a communication mechanism, there are two ZMQ queues on each system that send and receive logdata and configuration. With this, each module is also able to receive this configuration (log-level...) which is broadcast by the log-server on the system.
 

•For the reasons mentioned above, each module should have an init function
 

  EXOS_ERROR_CODE exos_log_init(exos_log_handle_t *log, const char *module_name);
 

•Furthermore, in order to receive configuration (and activate the local logger), you need a cyclic receive function
 

  EXOS_ERROR_CODE exos_log_process(const exos_log_handle_t *log);
 

•To log at a certain severity level, there are functions on each level for logging
 

  EXOS_ERROR_CODE exos_log_error(const exos_log_handle_t *log, char *format, ...);
  EXOS_ERROR_CODE exos_log_success(const exos_log_handle_t *log, EXOS_LOG_TYPE type, char *format, ...);
  EXOS_ERROR_CODE exos_log_info(const exos_log_handle_t *log, EXOS_LOG_TYPE type, char *format, ...);
  EXOS_ERROR_CODE exos_log_debug(const exos_log_handle_t *log, EXOS_LOG_TYPE type, char *format, ...);