[20/34] tools/lib/traceevent: Man pages for tep_filter_copy() and tep_filter_compare()

Commit Message

Tzvetomir Stoyanov Nov. 19, 2018, 12:54 p.m. UTC

Create man pages for tep_filter_copy() and tep_filter_compare()
as part of the libtraceevent APIs.

Signed-off-by: Tzvetomir Stoyanov <[e-mail]>
---
 .../libtraceevent-filter_oper.txt             | 84 +++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-filter_oper.txt

Patch

diff --git a/tools/lib/traceevent/Documentation/libtraceevent-filter_oper.txt b/tools/lib/traceevent/Documentation/libtraceevent-filter_oper.txt
new file mode 100644
index 000000000000..5ddae5819a99
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-filter_oper.txt
@@ -0,0 +1,84 @@ 
+libtraceevent(3)
+================
+
+NAME
+----
+tep_filter_copy,tep_filter_compare - Copy / compare operations with event filters.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_filter_copy*(struct tep_event_filter pass:[*]_dest_, struct tep_event_filter pass:[*]_source_);
+int *tep_filter_compare*(struct tep_event_filter pass:[*]_filter1_, struct tep_event_filter pass:[*]_filter2_);
+--
+
+DESCRIPTION
+-----------
+The _tep_filter_copy()_ function copies a _source_ filter into a _dest_ filter.
+
+The _tep_filter_compare()_ function compares two filers - _filter1_ and _filter2_.
+
+RETURN VALUE
+------------
+The _tep_filter_copy()_ function returns 0 on success or -1 if not all rules
+ were copied.
+ 
+The _tep_filter_compare()_ function returns 1 if the two filters hold the same 
+content, or 0 if they do not.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+struct tep_event_filter *filter1 = tep_filter_alloc(tep);
+struct tep_event_filter *filter2 = tep_filter_alloc(tep);
+...
+if (tep_filter_copy(filter1, filter2) != 0) {
+	/* Failed to copy filter2 in filter1 */
+}
+...
+if (tep_filter_compare(filter1, filter2) != 1) {
+	/* Both filters are different */
+}
+...
+--
+
+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* <[e-mail]>, author of *libtraceevent*.
+*Tzvetomir Stoyanov* <[e-mail]>, author of this man page.
+--
+REPORTING BUGS
+--------------
+Report bugs to  <[e-mail]>
+
+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