The Tor Browser: widget/gonk/libui/Trace.h@fc2d59ddac77

     1 /*

     2  * Copyright (C) 2012 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  */

    17 #ifndef ANDROID_TRACE_H

    18 #define ANDROID_TRACE_H

    20 #include <fcntl.h>

    21 #include <stdint.h>

    22 #include <stdio.h>

    23 #include <string.h>

    24 #include <sys/stat.h>

    25 #include <sys/types.h>

    26 #include <unistd.h>

    28 #include <cutils/compiler.h>

    29 #include <utils/threads.h>

    30 #include "cutils_trace.h"

    32 // See <cutils/trace.h> for more ATRACE_* macros.

    34 // ATRACE_NAME traces the beginning and end of the current scope.  To trace

    35 // the correct start and end times this macro should be declared first in the

    36 // scope body.

    37 #define ATRACE_NAME(name) android::ScopedTrace ___tracer(ATRACE_TAG, name)

    38 // ATRACE_CALL is an ATRACE_NAME that uses the current function name.

    39 #define ATRACE_CALL() ATRACE_NAME(__FUNCTION__)

    41 namespace android {

    43 class ScopedTrace {

    44 public:

    45 inline ScopedTrace(uint64_t tag, const char* name)

    46     : mTag(tag) {

    47 #ifdef HAVE_ANDROID_OS

    48     atrace_begin(mTag,name);

    49 #endif

    50 }

    52 inline ~ScopedTrace() {

    53 #ifdef HAVE_ANDROID_OS

    54     atrace_end(mTag);

    55 #endif

    56 }

    58 private:

    59     uint64_t mTag;

    60 };

    62 }; // namespace android

    64 #endif // ANDROID_TRACE_H

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