| libtraceevent(3) | |
| ================ | |
| NAME | |
| ---- | |
| tep_event_common_fields, tep_event_fields - Get a list of fields for an event. | |
| SYNOPSIS | |
| -------- | |
| [verse] | |
| -- | |
| *#include <event-parse.h>* | |
| struct tep_format_field pass:[*]pass:[*]*tep_event_common_fields*(struct tep_event pass:[*]_event_); | |
| struct tep_format_field pass:[*]pass:[*]*tep_event_fields*(struct tep_event pass:[*]_event_); | |
| -- | |
| DESCRIPTION | |
| ----------- | |
| The _tep_event_common_fields()_ function returns an array of pointers to common | |
| fields for the _event_. The array is allocated in the function and must be freed | |
| by free(). The last element of the array is NULL. | |
| The _tep_event_fields()_ function returns an array of pointers to event specific | |
| fields for the _event_. The array is allocated in the function and must be freed | |
| by free(). The last element of the array is NULL. | |
| RETURN VALUE | |
| ------------ | |
| Both _tep_event_common_fields()_ and _tep_event_fields()_ functions return | |
| an array of pointers to tep_format_field structures in case of success, or | |
| NULL in case of an error. | |
| EXAMPLE | |
| ------- | |
| [source,c] | |
| -- | |
| #include <event-parse.h> | |
| ... | |
| struct tep_handle *tep = tep_alloc(); | |
| ... | |
| int i; | |
| struct tep_format_field **fields; | |
| struct tep_event *event = tep_find_event_by_name(tep, "kvm", "kvm_exit"); | |
| if (event != NULL) { | |
| fields = tep_event_common_fields(event); | |
| if (fields != NULL) { | |
| i = 0; | |
| while (fields[i]) { | |
| /* | |
| walk through the list of the common fields | |
| of the kvm_exit event | |
| */ | |
| i++; | |
| } | |
| free(fields); | |
| } | |
| fields = tep_event_fields(event); | |
| if (fields != NULL) { | |
| i = 0; | |
| while (fields[i]) { | |
| /* | |
| walk through the list of the event specific | |
| fields of the kvm_exit event | |
| */ | |
| i++; | |
| } | |
| free(fields); | |
| } | |
| } | |
| ... | |
| -- | |
| FILES | |
| ----- | |
| [verse] | |
| -- | |
| *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. | |
| -- | |
| SEE ALSO | |
| -------- | |
| _libtraceevent(3)_, _trace-cmd(1)_ | |
| AUTHOR | |
| ------ | |
| [verse] | |
| -- | |
| *Steven Rostedt* <rostedt@goodmis.org>, author of *libtraceevent*. | |
| *Tzvetomir Stoyanov* <tz.stoyanov@gmail.com>, author of this man page. | |
| -- | |
| REPORTING BUGS | |
| -------------- | |
| Report bugs to <linux-trace-devel@vger.kernel.org> | |
| LICENSE | |
| ------- | |
| libtraceevent is Free Software licensed under the GNU LGPL 2.1 | |
| RESOURCES | |
| --------- | |
| https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git |