Move //mojo/shell to //shell

mojo/shell/domain_socket/socket_libevent.cc

Index: mojo/shell/domain_socket/socket_libevent.cc
diff --git a/mojo/shell/domain_socket/socket_libevent.cc b/mojo/shell/domain_socket/socket_libevent.cc
deleted file mode 100644
index cf4bd7912881e66ca994b474f44f5e16d95bc5eb..0000000000000000000000000000000000000000
--- a/mojo/shell/domain_socket/socket_libevent.cc
+++ /dev/null
@@ -1,387 +0,0 @@
-// Copyright 2014 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "mojo/shell/domain_socket/socket_libevent.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <netinet/in.h>
-#include <sys/socket.h>
-#include <unistd.h>
-
-#include "base/callback_helpers.h"
-#include "base/logging.h"
-#include "base/posix/eintr_wrapper.h"
-#include "mojo/shell/domain_socket/net_errors.h"
-
-namespace mojo {
-namespace shell {
-
-SockaddrStorage::SockaddrStorage(const SockaddrStorage& other)
-    : addr_len(other.addr_len),
-      addr(reinterpret_cast<struct sockaddr*>(&addr_storage)) {
-  memcpy(addr, other.addr, addr_len);
-}
-
-void SockaddrStorage::operator=(const SockaddrStorage& other) {
-  addr_len = other.addr_len;
-  // addr is already set to &this->addr_storage by default ctor.
-  memcpy(addr, other.addr, addr_len);
-}
-
-namespace {
-
-int MapAcceptError(int os_error) {
-  switch (os_error) {
-    // If the client aborts the connection before the server calls accept,
-    // POSIX specifies accept should fail with ECONNABORTED. The server can
-    // ignore the error and just call accept again, so we map the error to
-    // ERR_IO_PENDING. See UNIX Network Programming, Vol. 1, 3rd Ed., Sec.
-    // 5.11, "Connection Abort before accept Returns".
-    case ECONNABORTED:
-      return net::ERR_IO_PENDING;
-    default:
-      return net::MapSystemError(os_error);
-  }
-}
-
-int MapConnectError(int os_error) {
-  switch (os_error) {
-    case EINPROGRESS:
-      return net::ERR_IO_PENDING;
-    case EACCES:
-      return net::ERR_NETWORK_ACCESS_DENIED;
-    case ETIMEDOUT:
-      return net::ERR_CONNECTION_TIMED_OUT;
-    default: {
-      int net_error = net::MapSystemError(os_error);
-      if (net_error == net::ERR_FAILED)
-        return net::ERR_CONNECTION_FAILED;  // More specific than ERR_FAILED.
-      return net_error;
-    }
-  }
-}
-
-int SetNonBlocking(int fd) {
-  int flags = fcntl(fd, F_GETFL, 0);
-  if (-1 == flags)
-    return flags;
-  return fcntl(fd, F_SETFL, flags | O_NONBLOCK);
-}
-
-}  // namespace
-
-SocketLibevent::SocketLibevent()
-    : socket_fd_(kInvalidSocket), waiting_connect_(false) {
-}
-
-SocketLibevent::~SocketLibevent() {
-  Close();
-}
-
-int SocketLibevent::Open(int address_family) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_EQ(kInvalidSocket, socket_fd_);
-  DCHECK(address_family == AF_INET || address_family == AF_INET6 ||
-         address_family == AF_UNIX);
-
-  int socket_type = SOCK_STREAM;
-#ifdef SOCK_NONBLOCK
-  socket_type |= SOCK_NONBLOCK;
-#endif
-  socket_fd_ = ::socket(address_family,
-                        socket_type,
-                        address_family == AF_UNIX ? 0 : IPPROTO_TCP);
-#ifndef SOCK_NONBLOCK
-  if (SetNonBlocking(socket_fd_) != 0) {
-    PLOG(ERROR) << "SetNonBlocking() returned an error, errno=" << errno;
-    return net::MapSystemError(errno);
-  }
-#endif
-  if (socket_fd_ < 0) {
-    PLOG(ERROR) << "CreatePlatformSocket() returned an error, errno=" << errno;
-    return net::MapSystemError(errno);
-  }
-
-  return net::OK;
-}
-
-int SocketLibevent::AdoptConnectedSocket(SocketDescriptor socket,
-                                         const SockaddrStorage& address) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_EQ(kInvalidSocket, socket_fd_);
-
-  socket_fd_ = socket;
-
-  if (SetNonBlocking(socket_fd_)) {
-    int rv = net::MapSystemError(errno);
-    Close();
-    return rv;
-  }
-
-  SetPeerAddress(address);
-  return net::OK;
-}
-
-SocketDescriptor SocketLibevent::ReleaseConnectedSocket() {
-  StopWatchingAndCleanUp();
-  SocketDescriptor socket_fd = socket_fd_;
-  socket_fd_ = kInvalidSocket;
-  return socket_fd;
-}
-
-int SocketLibevent::Bind(const SockaddrStorage& address) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_NE(kInvalidSocket, socket_fd_);
-
-  int rv = bind(socket_fd_, address.addr, address.addr_len);
-  if (rv < 0) {
-    PLOG(ERROR) << "bind() returned an error, errno=" << errno;
-    return net::MapSystemError(errno);
-  }
-
-  return net::OK;
-}
-
-int SocketLibevent::Listen(int backlog) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_NE(kInvalidSocket, socket_fd_);
-  DCHECK_LT(0, backlog);
-
-  int rv = listen(socket_fd_, backlog);
-  if (rv < 0) {
-    PLOG(ERROR) << "listen() returned an error, errno=" << errno;
-    return net::MapSystemError(errno);
-  }
-
-  return net::OK;
-}
-
-int SocketLibevent::Accept(scoped_ptr<SocketLibevent>* socket,
-                           const CompletionCallback& callback) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_NE(kInvalidSocket, socket_fd_);
-  DCHECK(accept_callback_.is_null());
-  DCHECK(socket);
-  DCHECK(!callback.is_null());
-
-  int rv = DoAccept(socket);
-  if (rv != net::ERR_IO_PENDING)
-    return rv;
-
-  if (!base::MessageLoopForIO::current()->WatchFileDescriptor(
-          socket_fd_,
-          true,
-          base::MessageLoopForIO::WATCH_READ,
-          &accept_socket_watcher_,
-          this)) {
-    PLOG(ERROR) << "WatchFileDescriptor failed on accept, errno " << errno;
-    return net::MapSystemError(errno);
-  }
-
-  accept_socket_ = socket;
-  accept_callback_ = callback;
-  return net::ERR_IO_PENDING;
-}
-
-int SocketLibevent::Connect(const SockaddrStorage& address,
-                            const CompletionCallback& callback) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK_NE(kInvalidSocket, socket_fd_);
-  DCHECK(!waiting_connect_);
-  DCHECK(!callback.is_null());
-
-  SetPeerAddress(address);
-
-  int rv = DoConnect();
-  if (rv != net::ERR_IO_PENDING)
-    return rv;
-
-  if (!base::MessageLoopForIO::current()->WatchFileDescriptor(
-          socket_fd_,
-          true,
-          base::MessageLoopForIO::WATCH_WRITE,
-          &write_socket_watcher_,
-          this)) {
-    PLOG(ERROR) << "WatchFileDescriptor failed on connect, errno " << errno;
-    return net::MapSystemError(errno);
-  }
-
-  write_callback_ = callback;
-  waiting_connect_ = true;
-  return net::ERR_IO_PENDING;
-}
-
-bool SocketLibevent::IsConnected() const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-
-  if (socket_fd_ == kInvalidSocket || waiting_connect_)
-    return false;
-
-  // Checks if connection is alive.
-  char c;
-  int rv = HANDLE_EINTR(recv(socket_fd_, &c, 1, MSG_PEEK));
-  if (rv == 0)
-    return false;
-  if (rv == -1 && errno != EAGAIN && errno != EWOULDBLOCK)
-    return false;
-
-  return true;
-}
-
-bool SocketLibevent::IsConnectedAndIdle() const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-
-  if (socket_fd_ == kInvalidSocket || waiting_connect_)
-    return false;
-
-  // Check if connection is alive and we haven't received any data
-  // unexpectedly.
-  char c;
-  int rv = HANDLE_EINTR(recv(socket_fd_, &c, 1, MSG_PEEK));
-  if (rv >= 0)
-    return false;
-  if (errno != EAGAIN && errno != EWOULDBLOCK)
-    return false;
-
-  return true;
-}
-
-int SocketLibevent::GetLocalAddress(SockaddrStorage* address) const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(address);
-
-  if (getsockname(socket_fd_, address->addr, &address->addr_len) < 0)
-    return net::MapSystemError(errno);
-  return net::OK;
-}
-
-int SocketLibevent::GetPeerAddress(SockaddrStorage* address) const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  DCHECK(address);
-
-  if (!HasPeerAddress())
-    return net::ERR_SOCKET_NOT_CONNECTED;
-
-  *address = *peer_address_;
-  return net::OK;
-}
-
-void SocketLibevent::SetPeerAddress(const SockaddrStorage& address) {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  // |peer_address_| will be non-NULL if Connect() has been called. Unless
-  // Close() is called to reset the internal state, a second call to Connect()
-  // is not allowed.
-  // Please note that we don't allow a second Connect() even if the previous
-  // Connect() has failed. Connecting the same |socket_| again after a
-  // connection attempt failed results in unspecified behavior according to
-  // POSIX.
-  DCHECK(!peer_address_);
-  peer_address_.reset(new SockaddrStorage(address));
-}
-
-bool SocketLibevent::HasPeerAddress() const {
-  DCHECK(thread_checker_.CalledOnValidThread());
-  return peer_address_ != NULL;
-}
-
-void SocketLibevent::Close() {
-  DCHECK(thread_checker_.CalledOnValidThread());
-
-  StopWatchingAndCleanUp();
-
-  if (socket_fd_ != kInvalidSocket) {
-    if (IGNORE_EINTR(close(socket_fd_)) < 0)
-      PLOG(ERROR) << "close() returned an error, errno=" << errno;
-    socket_fd_ = kInvalidSocket;
-  }
-}
-
-void SocketLibevent::OnFileCanReadWithoutBlocking(int fd) {
-  DCHECK(!accept_callback_.is_null() || !read_callback_.is_null());
-  if (!accept_callback_.is_null()) {
-    AcceptCompleted();
-  } else {  // !read_callback_.is_null()
-    NOTREACHED();
-  }
-}
-
-void SocketLibevent::OnFileCanWriteWithoutBlocking(int fd) {
-  DCHECK(!write_callback_.is_null());
-  if (waiting_connect_) {
-    ConnectCompleted();
-  } else {
-    NOTREACHED();
-  }
-}
-
-int SocketLibevent::DoAccept(scoped_ptr<SocketLibevent>* socket) {
-  SockaddrStorage new_peer_address;
-  int new_socket = HANDLE_EINTR(
-      accept(socket_fd_, new_peer_address.addr, &new_peer_address.addr_len));
-  if (new_socket < 0)
-    return MapAcceptError(errno);
-
-  scoped_ptr<SocketLibevent> accepted_socket(new SocketLibevent);
-  int rv = accepted_socket->AdoptConnectedSocket(new_socket, new_peer_address);
-  if (rv != net::OK)
-    return rv;
-
-  *socket = accepted_socket.Pass();
-  return net::OK;
-}
-
-void SocketLibevent::AcceptCompleted() {
-  DCHECK(accept_socket_);
-  int rv = DoAccept(accept_socket_);
-  if (rv == net::ERR_IO_PENDING)
-    return;
-
-  bool ok = accept_socket_watcher_.StopWatchingFileDescriptor();
-  DCHECK(ok);
-  accept_socket_ = NULL;
-  base::ResetAndReturn(&accept_callback_).Run(rv);
-}
-
-int SocketLibevent::DoConnect() {
-  int rv = HANDLE_EINTR(
-      connect(socket_fd_, peer_address_->addr, peer_address_->addr_len));
-  DCHECK_GE(0, rv);
-  return rv == 0 ? net::OK : MapConnectError(errno);
-}
-
-void SocketLibevent::ConnectCompleted() {
-  // Get the error that connect() completed with.
-  int os_error = 0;
-  socklen_t len = sizeof(os_error);
-  if (getsockopt(socket_fd_, SOL_SOCKET, SO_ERROR, &os_error, &len) == 0) {
-    // TCPSocketLibevent expects errno to be set.
-    errno = os_error;
-  }
-
-  int rv = MapConnectError(errno);
-  if (rv == net::ERR_IO_PENDING)
-    return;
-
-  bool ok = write_socket_watcher_.StopWatchingFileDescriptor();
-  DCHECK(ok);
-  waiting_connect_ = false;
-  base::ResetAndReturn(&write_callback_).Run(rv);
-}
-
-void SocketLibevent::StopWatchingAndCleanUp() {
-  bool ok = accept_socket_watcher_.StopWatchingFileDescriptor();
-  DCHECK(ok);
-
-  if (!accept_callback_.is_null()) {
-    accept_socket_ = NULL;
-    accept_callback_.Reset();
-  }
-
-  waiting_connect_ = false;
-  peer_address_.reset();
-}
-
-}  // namespace shell
-}  // namespace mojo