FM / io

/usr/include/stxxl/bits/io

Name	Size	Mode	Actions
boostfd_file.h	2121	0644	edit dl rm
completion_handler.h	2834	0644	edit dl rm
create_file.h	1331	0644	edit dl rm
disk_queued_file.h	1746	0644	edit dl rm
disk_queues.h	3962	0644	edit dl rm
file.h	7676	0644	edit dl rm
fileperblock_file.h	2538	0644	edit dl rm
io.h	1271	0644	edit dl rm
iostats.h	16238	0644	edit dl rm
linuxaio_file.h	2574	0644	edit dl rm
linuxaio_queue.h	3109	0644	edit dl rm
linuxaio_request.h	2099	0644	edit dl rm
mem_file.h	1744	0644	edit dl rm
mmap_file.h	1870	0644	edit dl rm
request.h	3145	0644	edit dl rm
request_interface.h	2682	0644	edit dl rm
request_operations.h	5188	0644	edit dl rm
request_queue.h	1245	0644	edit dl rm
request_queue_impl_1q.h	2103	0644	edit dl rm
request_queue_impl_qwqr.h	2274	0644	edit dl rm
request_queue_impl_worker.h	2029	0644	edit dl rm
request_with_state.h	1699	0644	edit dl rm
request_with_waiters.h	1576	0644	edit dl rm
serving_request.h	1387	0644	edit dl rm
simdisk_file.h	4283	0644	edit dl rm
syscall_file.h	1844	0644	edit dl rm
ufs_file_base.h	1865	0644	edit dl rm
wbtl_file.h	3415	0644	edit dl rm
wfs_file_base.h	1663	0644	edit dl rm
wincall_file.h	2045	0644	edit dl rm

Edit: /usr/include/stxxl/bits/io/fileperblock_file.h (2538B)

/***************************************************************************
 *  include/stxxl/bits/io/fileperblock_file.h
 *
 *  Part of the STXXL. See http://stxxl.sourceforge.net
 *
 *  Copyright (C) 2008, 2009 Johannes Singler <singler@ira.uka.de>
 *
 *  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 STXXL_IO_FILEPERBLOCK_FILE_HEADER
#define STXXL_IO_FILEPERBLOCK_FILE_HEADER

#include <string>
#include <stxxl/bits/io/disk_queued_file.h>

STXXL_BEGIN_NAMESPACE

//! \addtogroup fileimpl
//! \{

//! Implementation of file based on other files, dynamically allocate one file per block.
//! Allows for dynamic disk space consumption.
template <class base_file_type>
class fileperblock_file : public disk_queued_file
{
private:
    std::string filename_prefix;
    int mode;
    offset_type current_size;
    bool lock_file_created;
    base_file_type lock_file;

protected:
    //! Constructs a file name for a given block.
    std::string filename_for_block(offset_type offset);

public:
    //! Constructs file object.
    //! param filename_prefix  filename prefix, numbering will be appended to it
    //! param mode open mode, see \c file::open_modes
    fileperblock_file(
        const std::string& filename_prefix,
        int mode,
        int queue_id = DEFAULT_QUEUE,
        int allocator_id = NO_ALLOCATOR,
        unsigned int device_id = DEFAULT_DEVICE_ID);

virtual ~fileperblock_file();

virtual void serve(void* buffer, offset_type offset, size_type bytes,
                       request::request_type type);

//! Changes the size of the file.
    //! \param new_size value of the new file size
    virtual void set_size(offset_type new_size) { current_size = new_size; }

//! Returns size of the file.
    //! \return file size in length
    virtual offset_type size() { return current_size; }

virtual void lock();

//! Frees the specified region.
    //! Actually deletes the corresponding file if the whole thing is deleted.
    virtual void discard(offset_type offset, offset_type length);

//! Rename the file corresponding to the offset such that it is out of reach for deleting.
    virtual void export_files(offset_type offset, offset_type length, std::string filename);

const char * io_type() const;
};

//! \}

STXXL_END_NAMESPACE

#endif // !STXXL_IO_FILEPERBLOCK_FILE_HEADER

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