1/*
2 * Copyright (C) 2013 The Android Open Source Project
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 *      http://www.apache.org/licenses/LICENSE-2.0
9 *
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 */
16
17#ifndef CAMERA_SCOPED_TRACE_H
18#define CAMERA_SCOPED_TRACE_H
19
20#include <stdint.h>
21#include <cutils/trace.h>
22
23// See <cutils/trace.h> for more tracing macros.
24
25// CAMTRACE_NAME traces the beginning and end of the current scope.  To trace
26// the correct start and end times this macro should be declared first in the
27// scope body.
28#define CAMTRACE_NAME(name) ScopedTrace ___tracer(ATRACE_TAG, name)
29// CAMTRACE_CALL is an ATRACE_NAME that uses the current function name.
30#define CAMTRACE_CALL() CAMTRACE_NAME(__FUNCTION__)
31
32namespace default_camera_hal {
33
34class ScopedTrace {
35public:
36inline ScopedTrace(uint64_t tag, const char* name)
37    : mTag(tag) {
38    atrace_begin(mTag,name);
39}
40
41inline ~ScopedTrace() {
42    atrace_end(mTag);
43}
44
45private:
46    uint64_t mTag;
47};
48
49}; // namespace default_camera_hal
50
51#endif // CAMERA_SCOPED_TRACE_H
52