1 files changed, 0 insertions, 474 deletions
diff --git a/lib/asio/detail/impl/descriptor_ops.ipp b/lib/asio/detail/impl/descriptor_ops.ipp
deleted file mode 100644
index 1af643f..0000000
--- a/lib/asio/detail/impl/descriptor_ops.ipp
+++ /dev/null
@@ -1,474 +0,0 @@
-//
-// detail/impl/descriptor_ops.ipp
-// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
-//
-// Copyright (c) 2003-2018 Christopher M. Kohlhoff (chris at kohlhoff dot com)
-//
-// 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 ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
-#define ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP
-
-#if defined(_MSC_VER) && (_MSC_VER >= 1200)
-# pragma once
-#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
-
-#include "asio/detail/config.hpp"
-#include <cerrno>
-#include "asio/detail/descriptor_ops.hpp"
-#include "asio/error.hpp"
-
-#if !defined(ASIO_WINDOWS) \
-  && !defined(ASIO_WINDOWS_RUNTIME) \
-  && !defined(__CYGWIN__)
-
-#include "asio/detail/push_options.hpp"
-
-namespace asio {
-namespace detail {
-namespace descriptor_ops {
-
-int open(const char* path, int flags, asio::error_code& ec)
-{
-  errno = 0;
-  int result = error_wrapper(::open(path, flags), ec);
-  if (result >= 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int close(int d, state_type& state, asio::error_code& ec)
-{
-  int result = 0;
-  if (d != -1)
-  {
-    errno = 0;
-    result = error_wrapper(::close(d), ec);
-
-    if (result != 0
-        && (ec == asio::error::would_block
-          || ec == asio::error::try_again))
-    {
-      // According to UNIX Network Programming Vol. 1, it is possible for
-      // close() to fail with EWOULDBLOCK under certain circumstances. What
-      // isn't clear is the state of the descriptor after this error. The one
-      // current OS where this behaviour is seen, Windows, says that the socket
-      // remains open. Therefore we'll put the descriptor back into blocking
-      // mode and have another attempt at closing it.
-#if defined(__SYMBIAN32__)
-      int flags = ::fcntl(d, F_GETFL, 0);
-      if (flags >= 0)
-        ::fcntl(d, F_SETFL, flags & ~O_NONBLOCK);
-#else // defined(__SYMBIAN32__)
-      ioctl_arg_type arg = 0;
-      ::ioctl(d, FIONBIO, &arg);
-#endif // defined(__SYMBIAN32__)
-      state &= ~non_blocking;
-
-      errno = 0;
-      result = error_wrapper(::close(d), ec);
-    }
-  }
-
-  if (result == 0)
-    ec = asio::error_code();
-  return result;
-}
-
-bool set_user_non_blocking(int d, state_type& state,
-    bool value, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-  errno = 0;
-#if defined(__SYMBIAN32__)
-  int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec);
-  if (result >= 0)
-  {
-    errno = 0;
-    int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
-    result = error_wrapper(::fcntl(d, F_SETFL, flag), ec);
-  }
-#else // defined(__SYMBIAN32__)
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec);
-#endif // defined(__SYMBIAN32__)
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    if (value)
-      state |= user_set_non_blocking;
-    else
-    {
-      // Clearing the user-set non-blocking mode always overrides any
-      // internally-set non-blocking flag. Any subsequent asynchronous
-      // operations will need to re-enable non-blocking I/O.
-      state &= ~(user_set_non_blocking | internal_non_blocking);
-    }
-    return true;
-  }
-
-  return false;
-}
-
-bool set_internal_non_blocking(int d, state_type& state,
-    bool value, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return false;
-  }
-
-  if (!value && (state & user_set_non_blocking))
-  {
-    // It does not make sense to clear the internal non-blocking flag if the
-    // user still wants non-blocking behaviour. Return an error and let the
-    // caller figure out whether to update the user-set non-blocking flag.
-    ec = asio::error::invalid_argument;
-    return false;
-  }
-
-  errno = 0;
-#if defined(__SYMBIAN32__)
-  int result = error_wrapper(::fcntl(d, F_GETFL, 0), ec);
-  if (result >= 0)
-  {
-    errno = 0;
-    int flag = (value ? (result | O_NONBLOCK) : (result & ~O_NONBLOCK));
-    result = error_wrapper(::fcntl(d, F_SETFL, flag), ec);
-  }
-#else // defined(__SYMBIAN32__)
-  ioctl_arg_type arg = (value ? 1 : 0);
-  int result = error_wrapper(::ioctl(d, FIONBIO, &arg), ec);
-#endif // defined(__SYMBIAN32__)
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-    if (value)
-      state |= internal_non_blocking;
-    else
-      state &= ~internal_non_blocking;
-    return true;
-  }
-
-  return false;
-}
-
-std::size_t sync_read(int d, state_type state, buf* bufs,
-    std::size_t count, bool all_empty, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to read 0 bytes on a stream is a no-op.
-  if (all_empty)
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // Read some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::readv(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Check if operation succeeded.
-    if (bytes > 0)
-      return bytes;
-
-    // Check for EOF.
-    if (bytes == 0)
-    {
-      ec = asio::error::eof;
-      return 0;
-    }
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for descriptor to become ready.
-    if (descriptor_ops::poll_read(d, 0, ec) < 0)
-      return 0;
-  }
-}
-
-bool non_blocking_read(int d, buf* bufs, std::size_t count,
-    asio::error_code& ec, std::size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Read some data.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::readv(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Check for end of stream.
-    if (bytes == 0)
-    {
-      ec = asio::error::eof;
-      return true;
-    }
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes > 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-std::size_t sync_write(int d, state_type state, const buf* bufs,
-    std::size_t count, bool all_empty, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return 0;
-  }
-
-  // A request to write 0 bytes on a stream is a no-op.
-  if (all_empty)
-  {
-    ec = asio::error_code();
-    return 0;
-  }
-
-  // Write some data.
-  for (;;)
-  {
-    // Try to complete the operation without blocking.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::writev(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Check if operation succeeded.
-    if (bytes > 0)
-      return bytes;
-
-    // Operation failed.
-    if ((state & user_set_non_blocking)
-        || (ec != asio::error::would_block
-          && ec != asio::error::try_again))
-      return 0;
-
-    // Wait for descriptor to become ready.
-    if (descriptor_ops::poll_write(d, 0, ec) < 0)
-      return 0;
-  }
-}
-
-bool non_blocking_write(int d, const buf* bufs, std::size_t count,
-    asio::error_code& ec, std::size_t& bytes_transferred)
-{
-  for (;;)
-  {
-    // Write some data.
-    errno = 0;
-    signed_size_type bytes = error_wrapper(::writev(
-          d, bufs, static_cast<int>(count)), ec);
-
-    // Retry operation if interrupted by signal.
-    if (ec == asio::error::interrupted)
-      continue;
-
-    // Check if we need to run the operation again.
-    if (ec == asio::error::would_block
-        || ec == asio::error::try_again)
-      return false;
-
-    // Operation is complete.
-    if (bytes >= 0)
-    {
-      ec = asio::error_code();
-      bytes_transferred = bytes;
-    }
-    else
-      bytes_transferred = 0;
-
-    return true;
-  }
-}
-
-int ioctl(int d, state_type& state, long cmd,
-    ioctl_arg_type* arg, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  errno = 0;
-  int result = error_wrapper(::ioctl(d, cmd, arg), ec);
-
-  if (result >= 0)
-  {
-    ec = asio::error_code();
-
-    // When updating the non-blocking mode we always perform the ioctl syscall,
-    // even if the flags would otherwise indicate that the descriptor is
-    // already in the correct state. This ensures that the underlying
-    // descriptor is put into the state that has been requested by the user. If
-    // the ioctl syscall was successful then we need to update the flags to
-    // match.
-    if (cmd == static_cast<long>(FIONBIO))
-    {
-      if (*arg)
-      {
-        state |= user_set_non_blocking;
-      }
-      else
-      {
-        // Clearing the non-blocking mode always overrides any internally-set
-        // non-blocking flag. Any subsequent asynchronous operations will need
-        // to re-enable non-blocking I/O.
-        state &= ~(user_set_non_blocking | internal_non_blocking);
-      }
-    }
-  }
-
-  return result;
-}
-
-int fcntl(int d, int cmd, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  errno = 0;
-  int result = error_wrapper(::fcntl(d, cmd), ec);
-  if (result != -1)
-    ec = asio::error_code();
-  return result;
-}
-
-int fcntl(int d, int cmd, long arg, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  errno = 0;
-  int result = error_wrapper(::fcntl(d, cmd, arg), ec);
-  if (result != -1)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_read(int d, state_type state, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  pollfd fds;
-  fds.fd = d;
-  fds.events = POLLIN;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : -1;
-  errno = 0;
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_write(int d, state_type state, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  pollfd fds;
-  fds.fd = d;
-  fds.events = POLLOUT;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : -1;
-  errno = 0;
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-int poll_error(int d, state_type state, asio::error_code& ec)
-{
-  if (d == -1)
-  {
-    ec = asio::error::bad_descriptor;
-    return -1;
-  }
-
-  pollfd fds;
-  fds.fd = d;
-  fds.events = POLLPRI | POLLERR | POLLHUP;
-  fds.revents = 0;
-  int timeout = (state & user_set_non_blocking) ? 0 : -1;
-  errno = 0;
-  int result = error_wrapper(::poll(&fds, 1, timeout), ec);
-  if (result == 0)
-    ec = (state & user_set_non_blocking)
-      ? asio::error::would_block : asio::error_code();
-  else if (result > 0)
-    ec = asio::error_code();
-  return result;
-}
-
-} // namespace descriptor_ops
-} // namespace detail
-} // namespace asio
-
-#include "asio/detail/pop_options.hpp"
-
-#endif // !defined(ASIO_WINDOWS)
-       //   && !defined(ASIO_WINDOWS_RUNTIME)
-       //   && !defined(__CYGWIN__)
-
-#endif // ASIO_DETAIL_IMPL_DESCRIPTOR_OPS_IPP