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/usr/include/boost/compute

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algorithm/	-	0755	rm
allocator/	-	0755	rm
async/	-	0755	rm
container/	-	0755	rm
detail/	-	0755	rm
exception/	-	0755	rm
experimental/	-	0755	rm
functional/	-	0755	rm
image/	-	0755	rm
interop/	-	0755	rm
iterator/	-	0755	rm
lambda/	-	0755	rm
memory/	-	0755	rm
random/	-	0755	rm
types/	-	0755	rm
type_traits/	-	0755	rm
utility/	-	0755	rm
algorithm.hpp	4399	0644	edit dl rm
allocator.hpp	748	0644	edit dl rm
async.hpp	703	0644	edit dl rm
buffer.hpp	6783	0644	edit dl rm
cl.hpp	1625	0644	edit dl rm
closure.hpp	10111	0644	edit dl rm
cl_ext.hpp	664	0644	edit dl rm
command_queue.hpp	62500	0644	edit dl rm
config.hpp	2359	0644	edit dl rm
container.hpp	1021	0644	edit dl rm
context.hpp	6594	0644	edit dl rm
core.hpp	1141	0644	edit dl rm
device.hpp	21203	0644	edit dl rm
event.hpp	10280	0644	edit dl rm
exception.hpp	858	0644	edit dl rm
function.hpp	12138	0644	edit dl rm
functional.hpp	1343	0644	edit dl rm
image.hpp	894	0644	edit dl rm
image2d.hpp	549	0644	edit dl rm
image3d.hpp	549	0644	edit dl rm
image_format.hpp	559	0644	edit dl rm
image_sampler.hpp	561	0644	edit dl rm
iterator.hpp	1140	0644	edit dl rm
kernel.hpp	17580	0644	edit dl rm
lambda.hpp	862	0644	edit dl rm
memory.hpp	717	0644	edit dl rm
memory_object.hpp	6994	0644	edit dl rm
pipe.hpp	4008	0644	edit dl rm
platform.hpp	7420	0644	edit dl rm
program.hpp	25342	0644	edit dl rm
random.hpp	1148	0644	edit dl rm
source.hpp	551	0644	edit dl rm
svm.hpp	1969	0644	edit dl rm
system.hpp	9388	0644	edit dl rm
types.hpp	870	0644	edit dl rm
type_traits.hpp	1106	0644	edit dl rm
user_event.hpp	2414	0644	edit dl rm
utility.hpp	823	0644	edit dl rm
version.hpp	665	0644	edit dl rm
wait_list.hpp	557	0644	edit dl rm

Edit: /usr/include/boost/compute/event.hpp (10280B)

//---------------------------------------------------------------------------//
// Copyright (c) 2013 Kyle Lutz <kyle.r.lutz@gmail.com>
//
// Distributed under the Boost Software License, Version 1.0
// See accompanying file LICENSE_1_0.txt or copy at
// http://www.boost.org/LICENSE_1_0.txt
//
// See http://boostorg.github.com/compute for more information.
//---------------------------------------------------------------------------//

#ifndef BOOST_COMPUTE_EVENT_HPP
#define BOOST_COMPUTE_EVENT_HPP

#include <boost/function.hpp>

#include <boost/compute/config.hpp>
#include <boost/compute/exception.hpp>
#include <boost/compute/detail/duration.hpp>
#include <boost/compute/detail/get_object_info.hpp>
#include <boost/compute/detail/assert_cl_success.hpp>
#include <boost/compute/types/fundamental.hpp>

namespace boost {
namespace compute {

/// \class event
/// \brief An event corresponding to an operation on a compute device
///
/// Event objects are used to track operations running on the device (such as
/// kernel executions and memory transfers). Event objects are returned by the
/// various \c enqueue_* methods of the command_queue class.
///
/// Events can be used to synchronize operations between the host and the
/// device. The \c wait() method will block execution on the host until the
/// operation corresponding to the event on the device has completed. The
/// status of the operation can also be polled with the \c status() method.
///
/// Event objects can also be used for performance profiling. In order to use
/// events for profiling, the command queue must be constructed with the
/// \c CL_QUEUE_PROFILING_ENABLE flag. Then the \c duration() method can be
/// used to retrieve the total duration of the operation on the device:
/// \code
/// std::cout << "time = " << e.duration<std::chrono::milliseconds>().count() << "ms\n";
/// \endcode
///
/// \see \ref future "future<T>", wait_list
class event
{
public:
    /// \internal_
    enum execution_status {
        complete = CL_COMPLETE,
        running = CL_RUNNING,
        submitted = CL_SUBMITTED,
        queued = CL_QUEUED
    };

/// \internal_
    enum command_type {
        ndrange_kernel = CL_COMMAND_NDRANGE_KERNEL,
        task = CL_COMMAND_TASK,
        native_kernel = CL_COMMAND_NATIVE_KERNEL,
        read_buffer = CL_COMMAND_READ_BUFFER,
        write_buffer = CL_COMMAND_WRITE_BUFFER,
        copy_buffer = CL_COMMAND_COPY_BUFFER,
        read_image = CL_COMMAND_READ_IMAGE,
        write_image = CL_COMMAND_WRITE_IMAGE,
        copy_image = CL_COMMAND_COPY_IMAGE,
        copy_image_to_buffer = CL_COMMAND_COPY_IMAGE_TO_BUFFER,
        copy_buffer_to_image = CL_COMMAND_COPY_BUFFER_TO_IMAGE,
        map_buffer = CL_COMMAND_MAP_BUFFER,
        map_image = CL_COMMAND_MAP_IMAGE,
        unmap_mem_object = CL_COMMAND_UNMAP_MEM_OBJECT,
        marker = CL_COMMAND_MARKER,
        aquire_gl_objects = CL_COMMAND_ACQUIRE_GL_OBJECTS,
        release_gl_object = CL_COMMAND_RELEASE_GL_OBJECTS
        #if defined(BOOST_COMPUTE_CL_VERSION_1_1)
        ,
        read_buffer_rect = CL_COMMAND_READ_BUFFER_RECT,
        write_buffer_rect = CL_COMMAND_WRITE_BUFFER_RECT,
        copy_buffer_rect = CL_COMMAND_COPY_BUFFER_RECT
        #endif
    };

/// \internal_
    enum profiling_info {
        profiling_command_queued = CL_PROFILING_COMMAND_QUEUED,
        profiling_command_submit = CL_PROFILING_COMMAND_SUBMIT,
        profiling_command_start = CL_PROFILING_COMMAND_START,
        profiling_command_end = CL_PROFILING_COMMAND_END
    };

/// Creates a null event object.
    event()
        : m_event(0)
    {
    }

explicit event(cl_event event, bool retain = true)
        : m_event(event)
    {
        if(m_event && retain){
            clRetainEvent(event);
        }
    }

/// Makes a new event as a copy of \p other.
    event(const event &other)
        : m_event(other.m_event)
    {
        if(m_event){
            clRetainEvent(m_event);
        }
    }

/// Copies the event object from \p other to \c *this.
    event& operator=(const event &other)
    {
        if(this != &other){
            if(m_event){
                clReleaseEvent(m_event);
            }

m_event = other.m_event;

if(m_event){
                clRetainEvent(m_event);
            }
        }

return *this;
    }

#ifndef BOOST_COMPUTE_NO_RVALUE_REFERENCES
    /// Move-constructs a new event object from \p other.
    event(event&& other) BOOST_NOEXCEPT
        : m_event(other.m_event)
    {
        other.m_event = 0;
    }

/// Move-assigns the event from \p other to \c *this.
    event& operator=(event&& other) BOOST_NOEXCEPT
    {
        if(m_event){
            clReleaseEvent(m_event);
        }

m_event = other.m_event;
        other.m_event = 0;

return *this;
    }
    #endif // BOOST_COMPUTE_NO_RVALUE_REFERENCES

/// Destroys the event object.
    ~event()
    {
        if(m_event){
            BOOST_COMPUTE_ASSERT_CL_SUCCESS(
                clReleaseEvent(m_event)
            );
        }
    }

/// Returns a reference to the underlying OpenCL event object.
    cl_event& get() const
    {
        return const_cast<cl_event &>(m_event);
    }

/// Returns the status of the event.
    cl_int status() const
    {
        return get_info<cl_int>(CL_EVENT_COMMAND_EXECUTION_STATUS);
    }

/// Returns the command type for the event.
    cl_command_type get_command_type() const
    {
        return get_info<cl_command_type>(CL_EVENT_COMMAND_TYPE);
    }

/// Returns information about the event.
    ///
    /// \see_opencl_ref{clGetEventInfo}
    template<class T>
    T get_info(cl_event_info info) const
    {
        return detail::get_object_info<T>(clGetEventInfo, m_event, info);
    }

/// \overload
    template<int Enum>
    typename detail::get_object_info_type<event, Enum>::type
    get_info() const;

/// Returns profiling information for the event.
    ///
    /// \see event::duration()
    ///
    /// \see_opencl_ref{clGetEventProfilingInfo}
    template<class T>
    T get_profiling_info(cl_profiling_info info) const
    {
        return detail::get_object_info<T>(clGetEventProfilingInfo,
                                          m_event,
                                          info);
    }

/// Blocks until the actions corresponding to the event have
    /// completed.
    void wait() const
    {
        cl_int ret = clWaitForEvents(1, &m_event);
        if(ret != CL_SUCCESS){
            BOOST_THROW_EXCEPTION(opencl_error(ret));
        }
    }

#if defined(BOOST_COMPUTE_CL_VERSION_1_1) || defined(BOOST_COMPUTE_DOXYGEN_INVOKED)
    /// Registers a function to be called when the event status changes to
    /// \p status (by default CL_COMPLETE). The callback is passed the OpenCL
    /// event object, the event status, and a pointer to arbitrary user data.
    ///
    /// \see_opencl_ref{clSetEventCallback}
    ///
    /// \opencl_version_warning{1,1}
    void set_callback(void (BOOST_COMPUTE_CL_CALLBACK *callback)(
                          cl_event event, cl_int status, void *user_data
                      ),
                      cl_int status = CL_COMPLETE,
                      void *user_data = 0)
    {
        cl_int ret = clSetEventCallback(m_event, status, callback, user_data);
        if(ret != CL_SUCCESS){
            BOOST_THROW_EXCEPTION(opencl_error(ret));
        }
    }

/// Registers a generic function to be called when the event status
    /// changes to \p status (by default \c CL_COMPLETE).
    ///
    /// The function specified by \p callback must be invokable with zero
    /// arguments (e.g. \c callback()).
    ///
    /// \opencl_version_warning{1,1}
    template<class Function>
    void set_callback(Function callback, cl_int status = CL_COMPLETE)
    {
        set_callback(
            event_callback_invoker,
            status,
            new boost::function<void()>(callback)
        );
    }
    #endif // BOOST_COMPUTE_CL_VERSION_1_1

/// Returns the total duration of the event from \p start to \p end.
    ///
    /// For example, to print the number of milliseconds the event took to
    /// execute:
    /// \code
    /// std::cout << event.duration<std::chrono::milliseconds>().count() << " ms" << std::endl;
    /// \endcode
    ///
    /// \see event::get_profiling_info()
    template<class Duration>
    Duration duration(cl_profiling_info start = CL_PROFILING_COMMAND_START,
                      cl_profiling_info end = CL_PROFILING_COMMAND_END) const
    {
        const ulong_ nanoseconds =
            get_profiling_info<ulong_>(end) - get_profiling_info<ulong_>(start);

return detail::make_duration_from_nanoseconds(Duration(), nanoseconds);
    }

/// Returns \c true if the event is the same as \p other.
    bool operator==(const event &other) const
    {
        return m_event == other.m_event;
    }

/// Returns \c true if the event is different from \p other.
    bool operator!=(const event &other) const
    {
        return m_event != other.m_event;
    }

/// \internal_
    operator cl_event() const
    {
        return m_event;
    }

/// \internal_ (deprecated)
    cl_int get_status() const
    {
        return status();
    }

private:
    #ifdef BOOST_COMPUTE_CL_VERSION_1_1
    /// \internal_
    static void BOOST_COMPUTE_CL_CALLBACK
    event_callback_invoker(cl_event, cl_int, void *user_data)
    {
        boost::function<void()> *callback =
            static_cast<boost::function<void()> *>(user_data);

(*callback)();

delete callback;
    }
    #endif // BOOST_COMPUTE_CL_VERSION_1_1

protected:
    cl_event m_event;
};

/// \internal_ define get_info() specializations for event
BOOST_COMPUTE_DETAIL_DEFINE_GET_INFO_SPECIALIZATIONS(event,
    ((cl_command_queue, CL_EVENT_COMMAND_QUEUE))
    ((cl_command_type, CL_EVENT_COMMAND_TYPE))
    ((cl_int, CL_EVENT_COMMAND_EXECUTION_STATUS))
    ((cl_uint, CL_EVENT_REFERENCE_COUNT))
)

#ifdef BOOST_COMPUTE_CL_VERSION_1_1
BOOST_COMPUTE_DETAIL_DEFINE_GET_INFO_SPECIALIZATIONS(event,
    ((cl_context, CL_EVENT_CONTEXT))
)
#endif

} // end compute namespace
} // end boost namespace

#endif // BOOST_COMPUTE_EVENT_HPP

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