parallel_backend.hpp

// This file is part of OpenCV project.
// It is subject to the license terms in the LICENSE file found in the top-level directory
// of this distribution and at http://opencv.org/license.html.
 
#ifndef OPENCV_CORE_PARALLEL_BACKEND_HPP
#define OPENCV_CORE_PARALLEL_BACKEND_HPP
 
#include "opencv2/core/cvdef.h"
#include <memory>
 
namespace cv { namespace parallel {
#ifndef CV_API_CALL
#define CV_API_CALL
#endif
 
class CV_EXPORTS ParallelForAPI
{
public:
    virtual ~ParallelForAPI();
 
    typedef void (CV_API_CALL *FN_parallel_for_body_cb_t)(int start, int end, void* data);
 
    virtual void parallel_for(int tasks, FN_parallel_for_body_cb_t body_callback, void* callback_data) = 0;
 
    virtual int getThreadNum() const = 0;
 
    virtual int getNumThreads() const = 0;
 
    virtual int setNumThreads(int nThreads) = 0;
 
    virtual const char* getName() const = 0;
};
 
CV_EXPORTS void setParallelForBackend(const std::shared_ptr<ParallelForAPI>& api, bool propagateNumThreads = true);
 
CV_EXPORTS_W bool setParallelForBackend(const std::string& backendName, bool propagateNumThreads = true);
 
}}  // namespace
#endif  // OPENCV_CORE_PARALLEL_BACKEND_HPP