qb_log_from_external_source - This function is to import logs from other code (like libraries) that

       Copyright (c) 2017 Red Hat, Inc.

LIBQB                                              2023-07-21                     QB_LOG_FROM_EXTERNAL_SOURCE(3)

       qb_log_from_external_source  -  This  function  is  to  import logs from other code (like libraries) that
       provide a callback with their logs.

       the  performance  of  this  will  not  impress  you,  as  the  filtering is done on each log message, not
       beforehand. So try doing basic pre-filtering.

functionoriginatingfunctionnamefilenameoriginatingfilenameformatformatstringprioritythistakessyslogpriorities.linenofilelinenumbertagsthisisauint32_tthatyoucanusewithqb_log_tags_stringify_fn_set() to "tag" a  log  message
       with a feature or sub-system then you can use "%g" in the format specifer to print it out.

                (null)

qb_log_filter_fn_set(3), qb_log_from_external_source_va2(3), qb_log_thread_start(3),
       qb_log_target_user_data_get(3), qb_log_tags_stringify_fn_set(3), qb_log_file_reopen(3), qb_log_fini(3),
       qb_log_callsites_dump(3), qb_log_ctl2(3), qb_log_target_user_data_set(3), qb_log_target_format(3),
       qb_log_thread_priority_set(3), qb_log_facility2int(3), qb_log_callsites_register(3),
       qb_log_filter_ctl2(3), qb_log_file_close(3), qb_log_format_set(3), qb_log_real_(3),
       qb_log_from_external_source_va(3), qb_log_callsite_get(3), qb_log_blackbox_write_to_file(3),
       qb_log_real_va_(3), qb_log_blackbox_print_from_file(3), qb_log_facility2str(3), qb_log_callsite_get2(3),
       qb_log_ctl(3), qb_log_filter_ctl(3), qb_log_custom_close(3), qb_log_init(3), qb_log_file_open(3),
       qb_log_custom_open(3)

#include<qb/qblog.h>voidqb_log_from_external_source(
           constchar*function,  /* originating function name */
           constchar*filename,  /* originating filename */
           constchar*format,    /* format string */
           uint8_tpriority,  /* this takes syslog priorities. */
           uint32_tlineno,    /* file line number */
           /*
            * this is a uint32_t that you can use with
            * qb_log_tags_stringify_fn_set() to "tag" a log message with a feature or sub-system then you can use
            * "%g" in the format specifer to print it out.
            */
           uint32_ttags,
           ...
       );