iovec.hpp

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//  Copyright (c) 2005-2009 Hartmut Kaiser
//  Copyright (c) 2007 Ole Weidner (oweidner@cct.lsu.edu)
// 
//  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)

#ifndef SAGA_PACKAGES_DATA_FILESYSTEM_IOVEC_HPP
#define SAGA_PACKAGES_DATA_FILESYSTEM_IOVEC_HPP

#if defined(_MSC_VER) && (_MSC_VER >= 1200)
#pragma once
#endif 

#include <saga/saga/packages/filesystem/config.hpp>

// include dependent spec sections
#include <saga/saga/buffer.hpp>

// suppress warnings about dependent classes not being exported from the dll
#if defined(BOOST_MSVC)
#pragma warning(push)
#pragma warning(disable: 4251 4231 4275 4660)
#endif

namespace saga
{
    namespace filesystem {
    class SAGA_FILESYSTEM_PACKAGE_EXPORT const_iovec 
        : public saga::const_buffer
    {
    protected:

        TR1::shared_ptr <saga::impl::const_iovec> get_impl_sp(void) const;
        saga::impl::const_iovec* get_impl (void) const;
        friend class saga::impl::const_iovec;

    public:
        const_iovec(void const* data, saga::ssize_t size, 
            saga::ssize_t len_in = -1);
            
        ~const_iovec();

        saga::ssize_t get_len_in() const;
        
        saga::ssize_t get_len_out() const;

    };  // const_iovec

    class SAGA_FILESYSTEM_PACKAGE_EXPORT iovec 
        : public saga::mutable_buffer
    {
    protected:

        TR1::shared_ptr <saga::impl::iovec> get_impl_sp (void) const;
        saga::impl::iovec* get_impl (void) const;
        friend class saga::impl::iovec;

    public:
        iovec(void* data = 0, saga::ssize_t size = -1, 
            saga::ssize_t len_in = -1, 
            buffer_deleter cb = default_buffer_deleter);
            
        ~iovec();

        void set_len_in(saga::ssize_t len_in);
        
        saga::ssize_t get_len_in() const;
        
        saga::ssize_t get_len_out() const;

    };  // iovec
}
}   // namespace saga

// re-enable warnings about dependent classes not being exported from the dll
#if defined(BOOST_MSVC)
#pragma warning(pop)
#endif

#endif // !defined(SAGA_PACKAGES_DATA_FILESYSTEM_IOVEC_HPP)