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LIBTRACEEVENT(3) libtraceevent Manual LIBTRACEEVENT(3)
tep_find_event, tep_find_event_by_name, tep_find_event_by_record - Find events by given key.
#include <event-parse.h> struct tep_event *tep_find_event(struct tep_handle *tep, int id); struct tep_event *tep_find_event_by_name(struct tep_handle *tep, const char *sys, const char *name); struct tep_event *tep_find_event_by_record(struct tep_handle *tep, struct tep_record *record);
This set of functions can be used to search for an event, based on a given criteria. All functions require a pointer to a tep, trace event parser context. The tep_find_event() function searches for an event by given event id. The event ID is assigned dynamically and can be viewed in event’s format file, "ID" field. The tep_find_event_by_name() function searches for an event by given event name, under the system sys. If the sys is NULL (not specified), the first event with name is returned. The tep_find_event_by_record()* function searches for an event from a given record.
All these functions return a pointer to the found event, or NULL if there is no such event.
#include <event-parse.h> ... struct tep_handle *tep = tep_alloc(); ... struct tep_event *event; event = tep_find_event(tep, 1857); if (event == NULL) { /* There is no event with ID 1857 */ } event = tep_find_event_by_name(tep, "kvm", "kvm_exit"); if (event == NULL) { /* There is no kvm_exit event, from kvm system */ } void event_from_record(struct tep_record *record) { struct tep_event *event = tep_find_event_by_record(tep, record); if (event == NULL) { /* There is no event from given record */ } } ...
event-parse.h Header file to include in order to have access to the library APIs. -ltraceevent Linker switch to add when building a program that uses the library.
libtraceevent(3), trace-cmd(1)
Steven Rostedt <[email protected][1]>, author of libtraceevent. Tzvetomir Stoyanov <[email protected][2]>, author of this man page.
Report bugs to <[email protected][3]>
libtraceevent is Free Software licensed under the GNU LGPL 2.1
https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git/
1. [email protected] mailto:[email protected] 2. [email protected] mailto:[email protected] 3. [email protected] mailto:[email protected]
This page is part of the libtraceevent (Linux kernel trace event
library) project. Information about the project can be found at
⟨https://www.trace-cmd.org/⟩. If you have a bug report for this
manual page, see ⟨https://www.trace-cmd.org/⟩. This page was
obtained from the project's upstream Git repository
⟨https://git.kernel.org/pub/scm/libs/libtrace/libtraceevent.git⟩
on 2023-12-22. (At that time, the date of the most recent commit
that was found in the repository was 2023-06-07.) If you
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libtraceevent 1.7.3 09/24/2023 LIBTRACEEVENT(3)