widget/gonk/libui/Trace.h

changeset 0
6474c204b198
     1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/widget/gonk/libui/Trace.h	Wed Dec 31 06:09:35 2014 +0100
     1.3 @@ -0,0 +1,64 @@
     1.4 +/*
     1.5 + * Copyright (C) 2012 The Android Open Source Project
     1.6 + *
     1.7 + * Licensed under the Apache License, Version 2.0 (the "License");
     1.8 + * you may not use this file except in compliance with the License.
     1.9 + * You may obtain a copy of the License at
    1.10 + *
    1.11 + *      http://www.apache.org/licenses/LICENSE-2.0
    1.12 + *
    1.13 + * Unless required by applicable law or agreed to in writing, software
    1.14 + * distributed under the License is distributed on an "AS IS" BASIS,
    1.15 + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    1.16 + * See the License for the specific language governing permissions and
    1.17 + * limitations under the License.
    1.18 + */
    1.19 +
    1.20 +#ifndef ANDROID_TRACE_H
    1.21 +#define ANDROID_TRACE_H
    1.22 +
    1.23 +#include <fcntl.h>
    1.24 +#include <stdint.h>
    1.25 +#include <stdio.h>
    1.26 +#include <string.h>
    1.27 +#include <sys/stat.h>
    1.28 +#include <sys/types.h>
    1.29 +#include <unistd.h>
    1.30 +
    1.31 +#include <cutils/compiler.h>
    1.32 +#include <utils/threads.h>
    1.33 +#include "cutils_trace.h"
    1.34 +
    1.35 +// See <cutils/trace.h> for more ATRACE_* macros.
    1.36 +
    1.37 +// ATRACE_NAME traces the beginning and end of the current scope.  To trace
    1.38 +// the correct start and end times this macro should be declared first in the
    1.39 +// scope body.
    1.40 +#define ATRACE_NAME(name) android::ScopedTrace ___tracer(ATRACE_TAG, name)
    1.41 +// ATRACE_CALL is an ATRACE_NAME that uses the current function name.
    1.42 +#define ATRACE_CALL() ATRACE_NAME(__FUNCTION__)
    1.43 +
    1.44 +namespace android {
    1.45 +
    1.46 +class ScopedTrace {
    1.47 +public:
    1.48 +inline ScopedTrace(uint64_t tag, const char* name)
    1.49 +    : mTag(tag) {
    1.50 +#ifdef HAVE_ANDROID_OS
    1.51 +    atrace_begin(mTag,name);
    1.52 +#endif
    1.53 +}
    1.54 +
    1.55 +inline ~ScopedTrace() {
    1.56 +#ifdef HAVE_ANDROID_OS
    1.57 +    atrace_end(mTag);
    1.58 +#endif
    1.59 +}
    1.60 +
    1.61 +private:
    1.62 +    uint64_t mTag;
    1.63 +};
    1.64 +
    1.65 +}; // namespace android
    1.66 +
    1.67 +#endif // ANDROID_TRACE_H

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