vfile.cpp

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/****************************************************************************
 *
 *   Copyright (C) 2015 Mark Charlebois. All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 * 3. Neither the name PX4 nor the names of its contributors may be
 *    used to endorse or promote products derived from this software
 *    without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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/**
 * @file vdev_file.cpp
 * Virtual file
 *
 * @author Mark Charlebois <charlebm@gmail.com>
 */

#include "vfile.h"

namespace cdev
{

VFile::VFile(const char *fname, mode_t mode) :
    CDev(fname)
{
}

VFile *VFile::createFile(const char *fname, mode_t mode)
{
    VFile *me = new VFile(fname, mode);
    px4_file_operations_t *file_ops = nullptr;
    register_driver(fname, file_ops, 0666, (void *)me);
    return me;
}

ssize_t VFile::write(file_t *handlep, const char *buffer, size_t buflen)
{
    // ignore what was written, but let pollers know something was written
    poll_notify(POLLIN);

    return buflen;
}

} // namespace cdev