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