Implement tracepoint-internal.h as LGPLv2.1 (not exported)

[lttng-ust.git] / liblttng-ust / tracepoint-internal.h

diff --git a/liblttng-ust/tracepoint-internal.h b/liblttng-ust/tracepoint-internal.h
new file mode 100644 (file)
index 0000000..c883c7b
--- /dev/null
+++ b/liblttng-ust/tracepoint-internal.h
@@ -0,0 +1,58 @@
+#ifndef _LTTNG_TRACEPOINT_INTERNAL_H
+#define _LTTNG_TRACEPOINT_INTERNAL_H
+
+/*
+ * Copyright (c) 2011 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation;
+ * version 2.1 of the License.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include <urcu/list.h>
+#include <lttng/tracepoint-types.h>
+
+struct tracepoint_lib {
+       struct cds_list_head list;
+       struct tracepoint tracepoints_start;
+       int tracepoints_count;
+};
+
+struct tracepoint_iter {
+       struct tracepoint_lib *lib;
+       struct tracepoint * const *tracepoint;
+
+extern int tracepoint_probe_register_noupdate(const char *name, void *callback, void *priv);
+extern int tracepoint_probe_unregister_noupdate(const char *name, void *callback, void *priv);
+extern int tracepoint_probe_update_all(void);
+
+extern void tracepoint_iter_start(struct tracepoint_iter *iter);
+extern void tracepoint_iter_next(struct tracepoint_iter *iter);
+extern void tracepoint_iter_stop(struct tracepoint_iter *iter);
+extern void tracepoint_iter_reset(struct tracepoint_iter *iter);
+extern int tracepoint_get_iter_range(struct tracepoint * const **tracepoint,
+       struct tracepoint * const *begin, struct tracepoint * const *end);
+
+/*
+ * call after disconnection of last probe implemented within a
+ * shared object before unmapping the library that contains the probe.
+ */
+static inline void tracepoint_synchronize_unregister(void)
+{
+       synchronize_rcu();
+}
+
+extern void init_tracepoint(void);
+extern void exit_tracepoint(void);
+
+#endif /* _LTTNG_TRACEPOINT_INTERNAL_H */