initial code repo

[stor4nfv.git] / src / ceph / src / common / EventTrace.h

diff --git a/src/ceph/src/common/EventTrace.h b/src/ceph/src/common/EventTrace.h
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+++ b/src/ceph/src/common/EventTrace.h
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+// -*- mode:C++; tab-width:8; c-basic-offset:2; indent-tabs-mode:t -*-
+// vim: ts=8 sw=2 smarttab
+/*
+ * Ceph - scalable distributed file system
+ *
+ * Copyright (C) 2016 Intel Corporation.
+ * All rights reserved.
+ *
+ * Author: Anjaneya Chagam <anjaneya.chagam@intel.com>
+ *
+ * This is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License version 2.1, as published by the Free Software
+ * Foundation.  See file COPYING.
+ *
+ */
+
+#ifndef _EventTrace_h_
+#define _EventTrace_h_
+
+#include "msg/Message.h"
+
+#if defined(WITH_LTTNG) && defined(WITH_EVENTTRACE)
+
+#define OID_EVENT_TRACE(oid, event) \
+  EventTrace::trace_oid_event(oid, event, "", __FILE__, __func__, __LINE__)
+#define OID_EVENT_TRACE_WITH_MSG(msg, event, incl_oid) \
+  EventTrace::trace_oid_event(msg, event, __FILE__, __func__, __LINE__, incl_oid)
+#define OID_ELAPSED(oid, elapsed, event) \
+  EventTrace::trace_oid_elapsed(oid, event, "", elapsed, __FILE__, __func__, __LINE__)
+#define OID_ELAPSED_WITH_MSG(m, elapsed, event, incl_oid) \
+  EventTrace::trace_oid_elapsed(m, event, elapsed, __FILE__, __func__, __LINE__, incl_oid)
+#define FUNCTRACE() EventTrace _t1(g_ceph_context, __FILE__, __func__, __LINE__)
+#define OID_ELAPSED_FUNC_EVENT(event) _t1.log_event_latency(event)
+
+#else
+
+#define OID_EVENT_TRACE(oid, event)
+#define OID_EVENT_TRACE_WITH_MSG(msg, event, incl_oid)
+#define OID_ELAPSED(oid, elapsed, event)
+#define OID_ELAPSED_WITH_MSG(m, elapsed, event, incl_oid)
+#define FUNCTRACE()
+#define OID_ELAPSED_FUNC_EVENT(event)
+
+#endif
+
+#define LOG_LEVEL 1
+
+class EventTrace {
+private:
+  CephContext *ctx;
+  string file;
+  string func;
+  int line;
+  utime_t last_ts;
+
+  static bool tpinit;
+
+  static void init_tp(CephContext *_ctx);
+  static void set_message_attrs(const Message *m, string& oid, string& context, bool incl_oid);
+
+public:
+
+  EventTrace(CephContext *_ctx, const char *_file, const char *_func, int line);
+  ~EventTrace();
+  void log_event_latency(const char *tag);
+
+  static void trace_oid_event(const char *oid, const char *event, const char *context,
+    const char *file, const char *func, int line);
+  static void trace_oid_event(const Message *m, const char *event, const char *file,
+    const char *func, int line, bool incl_oid);
+
+  static void trace_oid_elapsed(const char *oid, const char *event, const char *context,
+    double elapsed, const char *file, const char *func, int line);
+  static void trace_oid_elapsed(const Message *m, const char *event, double elapsed,
+    const char *file, const char *func, int line, bool incl_oid);
+  
+};
+#endif