weex_core/Source/include/JavaScriptCore/bytecode/SuperSampler.h

/**
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
#pragma once

namespace JSC {

class MacroAssembler;

extern volatile uint32_t g_superSamplerCount;

void initializeSuperSampler();

class SuperSamplerScope {
public:
    SuperSamplerScope(bool doSample = true)
        : m_doSample(doSample)
    {
        if (m_doSample)
            g_superSamplerCount++;
    }

    ~SuperSamplerScope()
    {
        if (m_doSample)
            g_superSamplerCount--;
    }

private:
    bool m_doSample;
};

JS_EXPORT_PRIVATE void resetSuperSamplerState();
JS_EXPORT_PRIVATE void printSuperSamplerState();

} // namespace JSC