ba28fabe43
Create man pages for libtraceevent APIs: tep_get_cpus(), tep_set_cpus() Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Jiri Olsa <jolsa@redhat.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: linux-trace-devel@vger.kernel.org Link: http://lore.kernel.org/linux-trace-devel/20190503091119.23399-6-tstoyanov@vmware.com Link: http://lkml.kernel.org/r/20190510200106.742948683@goodmis.org Signed-off-by: Steven Rostedt (VMware) <rostedt@goodmis.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
78 lines
1.7 KiB
Plaintext
78 lines
1.7 KiB
Plaintext
libtraceevent(3)
|
|
================
|
|
|
|
NAME
|
|
----
|
|
tep_get_cpus, tep_set_cpus - Get / set the number of CPUs, which have a tracing
|
|
buffer representing it. Note, the buffer may be empty.
|
|
|
|
SYNOPSIS
|
|
--------
|
|
[verse]
|
|
--
|
|
*#include <event-parse.h>*
|
|
|
|
int *tep_get_cpus*(struct tep_handle pass:[*]_tep_);
|
|
void *tep_set_cpus*(struct tep_handle pass:[*]_tep_, int _cpus_);
|
|
--
|
|
|
|
DESCRIPTION
|
|
-----------
|
|
The _tep_get_cpus()_ function gets the number of CPUs, which have a tracing
|
|
buffer representing it. The _tep_ argument is trace event parser context.
|
|
|
|
The _tep_set_cpus()_ function sets the number of CPUs, which have a tracing
|
|
buffer representing it. The _tep_ argument is trace event parser context.
|
|
The _cpu_ argument is the number of CPUs with tracing data.
|
|
|
|
RETURN VALUE
|
|
------------
|
|
The _tep_get_cpus()_ functions returns the number of CPUs, which have tracing
|
|
data recorded.
|
|
|
|
EXAMPLE
|
|
-------
|
|
[source,c]
|
|
--
|
|
#include <event-parse.h>
|
|
...
|
|
struct tep_handle *tep = tep_alloc();
|
|
...
|
|
tep_set_cpus(tep, 5);
|
|
...
|
|
printf("We have tracing data for %d CPUs", tep_get_cpus(tep));
|
|
--
|
|
|
|
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
|