Move base to DEPS

base/sync_socket_posix.cc

Index: base/sync_socket_posix.cc
diff --git a/base/sync_socket_posix.cc b/base/sync_socket_posix.cc
deleted file mode 100644
index 51b38a586dd72b4ad536695321c8eb1cdfca64e1..0000000000000000000000000000000000000000
--- a/base/sync_socket_posix.cc
+++ /dev/null
@@ -1,246 +0,0 @@
-// Copyright (c) 2012 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 "base/sync_socket.h"
-
-#include <errno.h>
-#include <fcntl.h>
-#include <limits.h>
-#include <stdio.h>
-#include <sys/ioctl.h>
-#include <sys/socket.h>
-#include <sys/types.h>
-
-#if defined(OS_SOLARIS)
-#include <sys/filio.h>
-#endif
-
-#include "base/files/file_util.h"
-#include "base/logging.h"
-#include "base/threading/thread_restrictions.h"
-
-namespace base {
-
-namespace {
-// To avoid users sending negative message lengths to Send/Receive
-// we clamp message lengths, which are size_t, to no more than INT_MAX.
-const size_t kMaxMessageLength = static_cast<size_t>(INT_MAX);
-
-// Writes |length| of |buffer| into |handle|.  Returns the number of bytes
-// written or zero on error.  |length| must be greater than 0.
-size_t SendHelper(SyncSocket::Handle handle,
-                  const void* buffer,
-                  size_t length) {
-  DCHECK_GT(length, 0u);
-  DCHECK_LE(length, kMaxMessageLength);
-  DCHECK_NE(handle, SyncSocket::kInvalidHandle);
-  const char* charbuffer = static_cast<const char*>(buffer);
-  return WriteFileDescriptor(handle, charbuffer, length)
-             ? static_cast<size_t>(length)
-             : 0;
-}
-
-bool CloseHandle(SyncSocket::Handle handle) {
-  if (handle != SyncSocket::kInvalidHandle && close(handle) < 0) {
-    DPLOG(ERROR) << "close";
-    return false;
-  }
-
-  return true;
-}
-
-}  // namespace
-
-const SyncSocket::Handle SyncSocket::kInvalidHandle = -1;
-
-SyncSocket::SyncSocket() : handle_(kInvalidHandle) {}
-
-SyncSocket::~SyncSocket() {
-  Close();
-}
-
-// static
-bool SyncSocket::CreatePair(SyncSocket* socket_a, SyncSocket* socket_b) {
-  DCHECK_NE(socket_a, socket_b);
-  DCHECK_EQ(socket_a->handle_, kInvalidHandle);
-  DCHECK_EQ(socket_b->handle_, kInvalidHandle);
-
-#if defined(OS_MACOSX)
-  int nosigpipe = 1;
-#endif  // defined(OS_MACOSX)
-
-  Handle handles[2] = { kInvalidHandle, kInvalidHandle };
-  if (socketpair(AF_UNIX, SOCK_STREAM, 0, handles) != 0) {
-    CloseHandle(handles[0]);
-    CloseHandle(handles[1]);
-    return false;
-  }
-
-#if defined(OS_MACOSX)
-  // On OSX an attempt to read or write to a closed socket may generate a
-  // SIGPIPE rather than returning -1.  setsockopt will shut this off.
-  if (0 != setsockopt(handles[0], SOL_SOCKET, SO_NOSIGPIPE,
-                      &nosigpipe, sizeof nosigpipe) ||
-      0 != setsockopt(handles[1], SOL_SOCKET, SO_NOSIGPIPE,
-                      &nosigpipe, sizeof nosigpipe)) {
-    CloseHandle(handles[0]);
-    CloseHandle(handles[1]);
-    return false;
-  }
-#endif
-
-  // Copy the handles out for successful return.
-  socket_a->handle_ = handles[0];
-  socket_b->handle_ = handles[1];
-
-  return true;
-}
-
-// static
-SyncSocket::Handle SyncSocket::UnwrapHandle(
-    const TransitDescriptor& descriptor) {
-  return descriptor.fd;
-}
-
-bool SyncSocket::PrepareTransitDescriptor(ProcessHandle peer_process_handle,
-                                          TransitDescriptor* descriptor) {
-  descriptor->fd = handle();
-  descriptor->auto_close = false;
-  return descriptor->fd != kInvalidHandle;
-}
-
-bool SyncSocket::Close() {
-  const bool retval = CloseHandle(handle_);
-  handle_ = kInvalidHandle;
-  return retval;
-}
-
-size_t SyncSocket::Send(const void* buffer, size_t length) {
-  ThreadRestrictions::AssertIOAllowed();
-  return SendHelper(handle_, buffer, length);
-}
-
-size_t SyncSocket::Receive(void* buffer, size_t length) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK_GT(length, 0u);
-  DCHECK_LE(length, kMaxMessageLength);
-  DCHECK_NE(handle_, kInvalidHandle);
-  char* charbuffer = static_cast<char*>(buffer);
-  if (ReadFromFD(handle_, charbuffer, length))
-    return length;
-  return 0;
-}
-
-size_t SyncSocket::ReceiveWithTimeout(void* buffer,
-                                      size_t length,
-                                      TimeDelta timeout) {
-  ThreadRestrictions::AssertIOAllowed();
-  DCHECK_GT(length, 0u);
-  DCHECK_LE(length, kMaxMessageLength);
-  DCHECK_NE(handle_, kInvalidHandle);
-
-  // TODO(dalecurtis): There's an undiagnosed issue on OSX where we're seeing
-  // large numbers of open files which prevents select() from being used.  In
-  // this case, the best we can do is Peek() to see if we can Receive() now or
-  // return a timeout error (0) if not.  See http://crbug.com/314364.
-  if (handle_ >= FD_SETSIZE)
-    return Peek() < length ? 0 : Receive(buffer, length);
-
-  // Only timeouts greater than zero and less than one second are allowed.
-  DCHECK_GT(timeout.InMicroseconds(), 0);
-  DCHECK_LT(timeout.InMicroseconds(),
-            base::TimeDelta::FromSeconds(1).InMicroseconds());
-
-  // Track the start time so we can reduce the timeout as data is read.
-  TimeTicks start_time = TimeTicks::Now();
-  const TimeTicks finish_time = start_time + timeout;
-
-  fd_set read_fds;
-  size_t bytes_read_total;
-  for (bytes_read_total = 0;
-       bytes_read_total < length && timeout.InMicroseconds() > 0;
-       timeout = finish_time - base::TimeTicks::Now()) {
-    FD_ZERO(&read_fds);
-    FD_SET(handle_, &read_fds);
-
-    // Wait for data to become available.
-    struct timeval timeout_struct =
-        { 0, static_cast<suseconds_t>(timeout.InMicroseconds()) };
-    const int select_result =
-        select(handle_ + 1, &read_fds, NULL, NULL, &timeout_struct);
-    // Handle EINTR manually since we need to update the timeout value.
-    if (select_result == -1 && errno == EINTR)
-      continue;
-    if (select_result <= 0)
-      return bytes_read_total;
-
-    // select() only tells us that data is ready for reading, not how much.  We
-    // must Peek() for the amount ready for reading to avoid blocking.
-    DCHECK(FD_ISSET(handle_, &read_fds));
-    const size_t bytes_to_read = std::min(Peek(), length - bytes_read_total);
-
-    // There may be zero bytes to read if the socket at the other end closed.
-    if (!bytes_to_read)
-      return bytes_read_total;
-
-    const size_t bytes_received =
-        Receive(static_cast<char*>(buffer) + bytes_read_total, bytes_to_read);
-    bytes_read_total += bytes_received;
-    if (bytes_received != bytes_to_read)
-      return bytes_read_total;
-  }
-
-  return bytes_read_total;
-}
-
-size_t SyncSocket::Peek() {
-  DCHECK_NE(handle_, kInvalidHandle);
-  int number_chars = 0;
-  if (ioctl(handle_, FIONREAD, &number_chars) == -1) {
-    // If there is an error in ioctl, signal that the channel would block.
-    return 0;
-  }
-  DCHECK_GE(number_chars, 0);
-  return number_chars;
-}
-
-CancelableSyncSocket::CancelableSyncSocket() {}
-CancelableSyncSocket::CancelableSyncSocket(Handle handle)
-    : SyncSocket(handle) {
-}
-
-bool CancelableSyncSocket::Shutdown() {
-  DCHECK_NE(handle_, kInvalidHandle);
-  return HANDLE_EINTR(shutdown(handle_, SHUT_RDWR)) >= 0;
-}
-
-size_t CancelableSyncSocket::Send(const void* buffer, size_t length) {
-  DCHECK_GT(length, 0u);
-  DCHECK_LE(length, kMaxMessageLength);
-  DCHECK_NE(handle_, kInvalidHandle);
-
-  const long flags = fcntl(handle_, F_GETFL, NULL);
-  if (flags != -1 && (flags & O_NONBLOCK) == 0) {
-    // Set the socket to non-blocking mode for sending if its original mode
-    // is blocking.
-    fcntl(handle_, F_SETFL, flags | O_NONBLOCK);
-  }
-
-  const size_t len = SendHelper(handle_, buffer, length);
-
-  if (flags != -1 && (flags & O_NONBLOCK) == 0) {
-    // Restore the original flags.
-    fcntl(handle_, F_SETFL, flags);
-  }
-
-  return len;
-}
-
-// static
-bool CancelableSyncSocket::CreatePair(CancelableSyncSocket* socket_a,
-                                      CancelableSyncSocket* socket_b) {
-  return SyncSocket::CreatePair(socket_a, socket_b);
-}
-
-}  // namespace base