char-device.cpp

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/*
 * This file is part of the µOS++ distribution.
 *   (https://github.com/micro-os-plus)
 * Copyright (c) 2015 Liviu Ionescu.
 *
 * 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.
 */
 
#include <cmsis-plus/posix-io/char-device.h>
#include <cmsis-plus/posix-io/device-registry.h>
 
#include <cstring>
#include <cassert>
#include <cerrno>
 
// ----------------------------------------------------------------------------
 
#if defined(__clang__)
#pragma clang diagnostic ignored "-Wc++98-compat"
#endif
 
// ----------------------------------------------------------------------------
 
namespace os
{
  namespace posix
  {
    // ========================================================================
 
    char_device::char_device (char_device_impl& impl, const char* name) :
        device
          { impl, type::char_device, name }
    {
#if defined(OS_TRACE_POSIX_IO_CHAR_DEVICE)
      trace::printf ("char_device::%s(\"%s\")=@%p\n", __func__, name_, this);
#endif
 
      device_registry<device>::link (this);
    }
 
    char_device::~char_device ()
    {
#if defined(OS_TRACE_POSIX_IO_CHAR_DEVICE)
      trace::printf ("char_device::%s() @%p %s\n", __func__, this, name_);
#endif
 
      registry_links_.unlink ();
 
      name_ = nullptr;
    }
 
    // ========================================================================
 
    char_device_impl::char_device_impl (void)
    {
#if defined(OS_TRACE_POSIX_IO_CHAR_DEVICE)
      trace::printf ("char_device_impl::%s()=@%p\n", __func__, this);
#endif
    }
 
    char_device_impl::~char_device_impl ()
    {
#if defined(OS_TRACE_POSIX_IO_CHAR_DEVICE)
      trace::printf ("char_device_impl::%s() @%p\n", __func__, this);
#endif
    }
 
#pragma GCC diagnostic push
#pragma GCC diagnostic ignored "-Wunused-parameter"
 
    off_t
    char_device_impl::do_lseek (off_t offset, int whence)
    {
      errno = ENOSYS; // Not implemented
      return -1;
    }
 
#pragma GCC diagnostic pop
 
    void
    char_device_impl::do_sync (void)
    {
      errno = ENOSYS; // Not implemented
    }
 
  // ==========================================================================
  } /* namespace posix */
} /* namespace os */
 
// ----------------------------------------------------------------------------