[PATCH v5 10/30] tools/lib/traceevent: Man page for tep_register_trace_clock()

From: Tzvetomir Stoyanov <tstoyanov@vmware.com>
To: rostedt@goodmis.org
Cc: linux-trace-devel@vger.kernel.org
Subject: [PATCH v5 10/30] tools/lib/traceevent: Man page for tep_register_trace_clock()
Date: Fri, 12 Apr 2019 16:37:51 +0300	[thread overview]
Message-ID: <20190412133811.15878-11-tstoyanov@vmware.com> (raw)
In-Reply-To: <20190412133811.15878-1-tstoyanov@vmware.com>

Create man page for tep_register_trace_clock() libtraceevent API.

Signed-off-by: Tzvetomir Stoyanov <tstoyanov@vmware.com>
---
 .../Documentation/libtraceevent-reg_clock.txt | 77 +++++++++++++++++++
 1 file changed, 77 insertions(+)
 create mode 100644 tools/lib/traceevent/Documentation/libtraceevent-reg_clock.txt

diff --git a/tools/lib/traceevent/Documentation/libtraceevent-reg_clock.txt b/tools/lib/traceevent/Documentation/libtraceevent-reg_clock.txt
new file mode 100644
index 000000000000..8bf6c5348fcf
--- /dev/null
+++ b/tools/lib/traceevent/Documentation/libtraceevent-reg_clock.txt
@@ -0,0 +1,77 @@
+libtraceevent(3)
+================
+
+NAME
+----
+tep_register_trace_clock - Registers the clock, used for the timestamp of
+the events.
+
+SYNOPSIS
+--------
+[verse]
+--
+*#include <event-parse.h>*
+
+int *tep_register_trace_clock*(struct tep_handle pass:[*]_tep_, const char pass:[*]_trace_clock_);
+--
+
+DESCRIPTION
+-----------
+The _tep_register_trace_clock()_ function registers the clock, used for
+the timestamps of the events. When an event is recorded, a timestamp is attached
+to it. This timestamp comes from a specified clock. Supported clocks can be seen
+in tracefs/trace_clock, the selected one is in square brackets.
+The _tep_ argument is the trace event parser context. The _trace_clock_ argument
+is the name of the clock, the string is copied internally.
+
+RETURN VALUE
+------------
+The _tep_register_trace_clock()_ function returns 0 in case of success.
+If there is not enough memory to copy the _trace_clock_ string -1 is returned
+and errno is set to ENOMEM.
+
+EXAMPLE
+-------
+[source,c]
+--
+#include <event-parse.h>
+...
+struct tep_handle *tep = tep_alloc();
+...
+	if(tep_register_trace_clock(tep, "local") != 0) {
+		/* Failed to register the clock */
+	}
+--
+
+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
-- 
2.20.1

