QB_LOG_FROM_EXTERNAL_SOURCE(3) libqb Programmer's Manual 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.

#include <qb/qblog.h>

void qb_log_from_external_source(
    const char   *function,
    const char   *filename,
    const char   *format,
    uint8_t       priority,
    uint32_t      lineno,
    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

(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.
2021-03-03 LIBQB