63e88f80
 Hu Chunming
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//---------------------------------------------------------------------------//
// Copyright (c) 2013-2014 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_USER_EVENT_HPP
#define BOOST_COMPUTE_USER_EVENT_HPP
#include <boost/compute/event.hpp>
#include <boost/compute/context.hpp>
namespace boost {
namespace compute {
#if defined(BOOST_COMPUTE_CL_VERSION_1_1) || defined(BOOST_COMPUTE_DOXYGEN_INVOKED)
/// \class user_event
/// \brief An user-created event.
///
/// \opencl_version_warning{1,1}
///
/// \see event
class user_event : public event
{
public:
/// Creates a new user-event object.
///
/// \see_opencl_ref{clCreateUserEvent}
explicit user_event(const context &context)
{
cl_int error;
m_event = clCreateUserEvent(context.get(), &error);
if(!m_event){
BOOST_THROW_EXCEPTION(opencl_error(error));
}
}
/// Creates a new user-event from \p other.
user_event(const user_event &other)
: event(other)
{
}
/// Copies the user-event from \p other to \c *this.
user_event& operator=(const user_event &other)
{
event::operator=(other);
return *this;
}
#ifndef BOOST_COMPUTE_NO_RVALUE_REFERENCES
/// Move-constructs a new user event object from \p other.
user_event(user_event&& other) BOOST_NOEXCEPT
: event(std::move(other))
{
}
/// Move-assigns the user event from \p other to \c *this.
user_event& operator=(user_event&& other) BOOST_NOEXCEPT
{
event::operator=(std::move(other));
return *this;
}
#endif // BOOST_COMPUTE_NO_RVALUE_REFERENCES
/// Sets the execution status for the user-event.
///
/// \see_opencl_ref{clSetUserEventStatus}
void set_status(cl_int execution_status)
{
cl_int ret = clSetUserEventStatus(m_event, execution_status);
if(ret != CL_SUCCESS){
BOOST_THROW_EXCEPTION(opencl_error(ret));
}
}
};
#endif // BOOST_COMPUTE_CL_VERSION_1_1
} // end compute namespace
} // end boost namespace
#endif // BOOST_COMPUTE_EVENT_HPP
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