Create man pages for tep_get_first_event() and tep_get_events_count() as part of the libtraceevent APIs. Signed-off-by: Tzvetomir Stoyanov <tstoyanov@xxxxxxxxxx> --- .../Documentation/libtraceevent-events.txt | 87 +++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-events.txt diff --git a/tools/lib/traceevent/Documentation/libtraceevent-events.txt b/tools/lib/traceevent/Documentation/libtraceevent-events.txt new file mode 100644 index 000000000000..b8f81bb9ece9 --- /dev/null +++ b/tools/lib/traceevent/Documentation/libtraceevent-events.txt @@ -0,0 +1,87 @@ +libtraceevent(3) +================ + +NAME +---- +tep_get_first_event,tep_get_events_count - Access events. + +SYNOPSIS +-------- +[verse] +-- +*#include <event-parse.h>* + +struct tep_event pass:[*]*tep_get_first_event*(struct tep_handle pass:[*]_tep_); +int *tep_get_events_count*(struct tep_handle pass:[*]_tep_); +-- + +DESCRIPTION +----------- +The _tep_get_first_event()_ function returns a pointer to the first event. +As events are stored in an array, this function returns the pointer to the +beginning of the array. The _tep_ argument is trace event parser context. + +The _tep_get_events_count()_ function returns the number of the events +in the array. The _tep_ argument is trace event parser context. + +RETURN VALUE +------------ +The _tep_get_first_event()_ returns a pointer to the first event. NULL is +returned in case of error, or in case there are no events. + +The _tep_get_events_count()_ returns the number of the events. 0 is +returned in case of error, or in case there are no events. + +EXAMPLE +------- +[source,c] +-- +#include <event-parse.h> +... +struct tep_handle *tep = tep_alloc(); +... +int i,count = tep_get_events_count(tep); +struct tep_event *event, *events = tep_get_first_event(tep); + +if (events == NULL) { + /* There are no events */ +} else { + for (i=0; i<count; i++) { + event = (events+i); + /* process events[i] */ + } +} +-- + +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@xxxxxxxxxxx>, author of *libtraceevent*. +*Tzvetomir Stoyanov* <tz.stoyanov@xxxxxxxxx>, author of this man page. +-- +REPORTING BUGS +-------------- +Report bugs to <linux-trace-devel@xxxxxxxxxxxxxxx> + +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 -- 2.20.1