shared_mutex_file.h

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// Copyright (c) 2018, Smart Projects Holdings Ltd
// All rights reserved.
// See LICENSE file for license details.

#ifndef _UGCS_VSM_SHARED_MUTEX_FILE_H_
#define _UGCS_VSM_SHARED_MUTEX_FILE_H_

#include <ugcs/vsm/callback.h>
#include <ugcs/vsm/file_processor.h>

namespace ugcs {
namespace vsm {

class Shared_mutex_file: public std::enable_shared_from_this<Shared_mutex_file>
{
    DEFINE_COMMON_CLASS(Shared_mutex_file, Shared_mutex_file)
public:
    typedef File_processor::Stream::Lock_handler Acquire_handler;

    Shared_mutex_file(const std::string& name, File_processor::Ptr = File_processor::Get_instance());

    virtual ~Shared_mutex_file();

    DEFINE_CALLBACK_BUILDER(
            Make_acquire_handler,
            (Io_result),
            (Io_result::OTHER_FAILURE));

    Operation_waiter
    Acquire(Acquire_handler completion_handler,
            Request_completion_context::Ptr comp_ctx = Request_temp_completion_context::Create());

    Operation_waiter
    Release(Acquire_handler completion_handler = Make_dummy_callback<void, Io_result>(),
            Request_completion_context::Ptr comp_ctx = Request_temp_completion_context::Create());
private:
    File_processor::Stream::Ref stream;
};

} /* namespace vsm */
} /* namespace ugcs */
#endif /* _UGCS_VSM_SHARED_MUTEX_FILE_H_ */