qb_log_target_user_data_set3
Associate user data with this log target.
Usage
#include <qb/qblog.h>
int32_t qb_log_target_user_data_set(
int32_t t,
void *user_data
);
Overview
Note
only use this with custom targets
Releases
4 releases since Debian 11 (Bullseye); the text changed 3 times.
See also
qb_log_filter_fn_set(3)
Instead of using the qb_log_filter_ctl() functions you can apply the filters manually by defining a callback and setting the targets field using qb_bit_set() and qb_bit_clear() like the following below:
qb_log_from_external_source_va2(3)
qb_log_thread_start(3)
Start the logging pthread.
qb_log_target_user_data_get(3)
Retrieve the user data set by either qb_log_custom_open or qb_log_target_user_data_set.
qb_log_tags_stringify_fn_set(3)
Set the callback to map the 'tags' bit map to a string.
qb_log_file_reopen(3)
Open a new log file for an existing target.
qb_log_fini(3)
Logging system finalization function.
qb_log_callsites_dump(3)
Dump the callsite info to stdout.
qb_log_ctl2(3)
Extension of main logging control function accepting also strings.
qb_log_target_format(3)
Format the callsite and timestamp info according to the format.
qb_log_thread_priority_set(3)
When using threaded logging set the pthread policy and priority.
qb_log_facility2int(3)
Convert string "auth" to equivalent number "LOG_AUTH" etc.
qb_log_callsites_register(3)
If you are using dynamically loadable modules via dlopen() and you load them after qb_log_init() then after you load the module you will need to do the following to get the filters to work in that module:
qb_log_filter_ctl2(3)
This extends qb_log_filter_ctl() by been able to provide a high_priority.
qb_log_file_close(3)
Close a log file and release its resources.
qb_log_format_set(3)
Set the format specifiers.
qb_log_real_(3)
Internal function: use qb_log() or qb_logt().
qb_log_from_external_source_va(3)
qb_log_callsite_get(3)
Get or create a callsite at the given position.
qb_log_blackbox_write_to_file(3)
Write the blackbox to file.
qb_log_real_va_(3)
qb_log_from_external_source(3)
This function is to import logs from other code (like libraries) that provide a callback with their logs.
qb_log_blackbox_print_from_file(3)
Read the blackbox for file and print it out.
qb_log_facility2str(3)
Convert number "LOG_AUTH" to equivalent string "auth" etc.
qb_log_callsite_get2(3)
qb_log_ctl(3)
Main logging control function.
qb_log_filter_ctl(3)
This allows you modify the 'tags' and 'targets' callsite fields at runtime.
qb_log_custom_close(3)
Close a custom log target and release its resources.
qb_log_init(3)
Init the logging system.
qb_log_file_open(3)
Open a log file.
qb_log_custom_open(3)
Open a custom log target.
Referred to by
qblog.h(3)
The logging API provides four main parts (basics, filtering, threading & blackbox).
qb_log_ctl(3)
Main logging control function.
qb_log_ctl2(3)
Extension of main logging control function accepting also strings.
qb_log_fini(3)
Logging system finalization function.
qb_log_init(3)
Init the logging system.
qb_log_real_(3)
Internal function: use qb_log() or qb_logt().
qb_log_real_va_(3)
qb_log_file_open(3)
Open a log file.
qb_log_file_close(3)
Close a log file and release its resources.
qb_log_filter_ctl(3)
This allows you modify the 'tags' and 'targets' callsite fields at runtime.
qb_log_format_set(3)
Set the format specifiers.
qb_log_custom_open(3)
Open a custom log target.
qb_log_file_reopen(3)
Open a new log file for an existing target.
qb_log_filter_ctl2(3)
This extends qb_log_filter_ctl() by been able to provide a high_priority.
qb_log_callsite_get(3)
Get or create a callsite at the given position.
qb_log_custom_close(3)
Close a custom log target and release its resources.
qb_log_facility2int(3)
Convert string "auth" to equivalent number "LOG_AUTH" etc.
qb_log_facility2str(3)
Convert number "LOG_AUTH" to equivalent string "auth" etc.
qb_log_thread_start(3)
Start the logging pthread.
qb_log_filter_fn_set(3)
Instead of using the qb_log_filter_ctl() functions you can apply the filters manually by defining a callback and setting the targets field using qb_bit_set() and qb_bit_clear() like the following below:
qb_log_target_format(3)
Format the callsite and timestamp info according to the format.
qb_log_callsites_dump(3)
Dump the callsite info to stdout.
qb_log_callsites_register(3)
If you are using dynamically loadable modules via dlopen() and you load them after qb_log_init() then after you load the module you will need to do the following to get the filters to work in that module:
qb_log_thread_priority_set(3)
When using threaded logging set the pthread policy and priority.
qb_log_from_external_source(3)
This function is to import logs from other code (like libraries) that provide a callback with their logs.
qb_log_target_user_data_get(3)
Retrieve the user data set by either qb_log_custom_open or qb_log_target_user_data_set.
qb_log_tags_stringify_fn_set(3)
Set the callback to map the 'tags' bit map to a string.
qb_log_blackbox_write_to_file(3)
Write the blackbox to file.
qb_log_from_external_source_va(3)
qb_log_blackbox_print_from_file(3)
Read the blackbox for file and print it out.