| 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 |
