X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=include%2Fbabeltrace%2Fctf-writer%2Fclock.h;h=cb17ca2b0f2e0c529717aa4b4b8f5efa27e56c6d;hb=8c18d80b69a10f94980d33e6f1c1bdb26b447487;hp=507739b01c24c5e1ec9887a99767e1cc33bad74f;hpb=faec0807cd032e833756c134daecb3668a780cf9;p=babeltrace.git

diff --git a/include/babeltrace/ctf-writer/clock.h b/include/babeltrace/ctf-writer/clock.h
index 507739b0..cb17ca2b 100644
--- a/include/babeltrace/ctf-writer/clock.h
+++ b/include/babeltrace/ctf-writer/clock.h
@@ -1,3 +1,6 @@
+#ifndef BABELTRACE_CTF_WRITER_CLOCK_H
+#define BABELTRACE_CTF_WRITER_CLOCK_H
+
 /*
  * BabelTrace - CTF Writer: Clock
  *
@@ -28,3 +31,32 @@
  */
 
 #include <babeltrace/ctf-ir/clock.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * bt_ctf_clock_get and bt_ctf_clock_put: increment and decrement the
+ * refcount of the clock
+ *
+ * You may also use bt_ctf_get() and bt_ctf_put() with clock objects.
+ *
+ * These functions ensure that the clock won't be destroyed when it
+ * is in use. The same number of get and put (plus one extra put to
+ * release the initial reference done at creation) has to be done to
+ * destroy a clock.
+ *
+ * When the clock refcount is decremented to 0 by a bt_ctf_clock_put,
+ * the clock is freed.
+ *
+ * @param clock Clock instance.
+ */
+extern void bt_ctf_clock_get(struct bt_ctf_clock *clock);
+extern void bt_ctf_clock_put(struct bt_ctf_clock *clock);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* BABELTRACE_CTF_WRITER_CLOCK_H */