qb_log_from_external_source - Man Page

#include <qb/qblog.h>

void qb_log_from_external_source(
    const char   *function,  /* originating function name */
    const char   *filename,  /* originating filename */
    const char   *format,    /* format string */
    uint8_t       priority,  /* this takes syslog priorities. */
    uint32_t      lineno,    /* 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_t      tags,
    ...           
);

function originating function name

filename originating filename

format   format string

priority this takes syslog priorities.

lineno   file line number

tags     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.

        (null)

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.

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)

Copyright (c) 2017 Red Hat, Inc.

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