ipc/handle_attachment_win.cc

   1 // Copyright 2015 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "ipc/handle_attachment_win.h"
   6
   7 #include <windows.h>
   8
   9 namespace IPC {
  10 namespace internal {
  11
  12 HandleAttachmentWin::HandleAttachmentWin(const HANDLE& handle)
  13     : handle_(handle) {
  14 }
  15
  16 HandleAttachmentWin::HandleAttachmentWin(const WireFormat& wire_format)
  17     : BrokerableAttachment(wire_format.attachment_id, false),
  18       handle_(LongToHandle(wire_format.handle)) {}
  19
  20 HandleAttachmentWin::HandleAttachmentWin(
  21     const BrokerableAttachment::AttachmentId& id)
  22     : BrokerableAttachment(id, true), handle_(INVALID_HANDLE_VALUE) {}
  23
  24 HandleAttachmentWin::~HandleAttachmentWin() {
  25 }
  26
  27 HandleAttachmentWin::BrokerableType HandleAttachmentWin::GetBrokerableType()
  28     const {
  29   return WIN_HANDLE;
  30 }
  31
  32 void HandleAttachmentWin::PopulateWithAttachment(
  33     const BrokerableAttachment* attachment) {
  34   DCHECK(NeedsBrokering());
  35   DCHECK(!attachment->NeedsBrokering());
  36   DCHECK(GetIdentifier() == attachment->GetIdentifier());
  37   DCHECK_EQ(GetBrokerableType(), attachment->GetBrokerableType());
  38
  39   const HandleAttachmentWin* handle_attachment =
  40       static_cast<const HandleAttachmentWin*>(attachment);
  41   handle_ = handle_attachment->handle_;
  42   SetNeedsBrokering(false);
  43 }
  44
  45 HandleAttachmentWin::WireFormat HandleAttachmentWin::GetWireFormat(
  46     const base::ProcessId& destination) const {
  47   WireFormat format;
  48   format.handle = HandleToLong(handle_);
  49   format.attachment_id = GetIdentifier();
  50   format.destination_process = destination;
  51   return format;
  52 }
  53
  54 }  // namespace internal
  55 }  // namespace IPC