blpapi_eventdispatcher.h

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/* Copyright 2012. Bloomberg Finance L.P.
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to
 * deal in the Software without restriction, including without limitation the
 * rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
 * sell copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:  The above
 * copyright notice and this permission notice shall be included in all copies
 * or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
 * IN THE SOFTWARE.
 */

#ifndef INCLUDED_BLPAPI_EVENTDISPATCHER
#define INCLUDED_BLPAPI_EVENTDISPATCHER

#ifndef INCLUDED_BLPAPI_DEFS
#include <blpapi_defs.h>
#endif

#ifndef INCLUDED_BLPAPI_TYPES
#include <blpapi_types.h>
#endif

#include <stddef.h> // for size_t

#ifdef __cplusplus
extern "C" {
#endif

BLPAPI_EXPORT
blpapi_EventDispatcher_t *blpapi_EventDispatcher_create(
        size_t numDispatcherThreads);

BLPAPI_EXPORT
void blpapi_EventDispatcher_destroy(blpapi_EventDispatcher_t *handle);

BLPAPI_EXPORT
int blpapi_EventDispatcher_start(blpapi_EventDispatcher_t *handle);

BLPAPI_EXPORT
int blpapi_EventDispatcher_stop(blpapi_EventDispatcher_t *handle, int async);

BLPAPI_EXPORT
int blpapi_EventDispatcher_dispatchEvents(blpapi_EventDispatcher_t *handle);

#ifdef __cplusplus
} // extern "C"

namespace BloombergLP {
namespace blpapi {

class EventDispatcher {

    blpapi_EventDispatcher_t *d_impl_p;

  private:
    // NOT IMPLEMENTED
    EventDispatcher(const EventDispatcher&);
    EventDispatcher& operator=(const EventDispatcher&);

  public:
    explicit EventDispatcher(size_t numDispatcherThreads = 1);
    ~EventDispatcher();
    int start();
    int stop(bool async = false);
    blpapi_EventDispatcher_t *impl() const;
};

// ============================================================================
//                      INLINE AND TEMPLATE FUNCTION IMPLEMENTATIONS
// ============================================================================

// ---------------------
// class EventDispatcher
// ---------------------

inline EventDispatcher::EventDispatcher(size_t numDispatcherThreads)
    : d_impl_p(blpapi_EventDispatcher_create(numDispatcherThreads))
{
}

inline EventDispatcher::~EventDispatcher()
{
    blpapi_EventDispatcher_destroy(d_impl_p);
}

inline int EventDispatcher::start()
{
    return blpapi_EventDispatcher_start(d_impl_p);
}

inline int EventDispatcher::stop(bool async)
{
    return blpapi_EventDispatcher_stop(d_impl_p, async);
}

inline blpapi_EventDispatcher_t *EventDispatcher::impl() const
{
    return d_impl_p;
}

} // close namespace blpapi
} // close namespace BloombergLP

#endif // ifdef __cplusplus

#endif // #ifndef INCLUDED_BLPAPI_EVENTDISPATCHER