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Unified Diff: mojo/system/embedder/platform_channel_pair_win.cc

Issue 203373004: Mojo: Move mojo/system/embedder to mojo/embedder. (Closed) Base URL: svn://svn.chromium.org/chrome/trunk/src
Patch Set: rebased Created 6 years, 9 months ago
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Index: mojo/system/embedder/platform_channel_pair_win.cc
diff --git a/mojo/system/embedder/platform_channel_pair_win.cc b/mojo/system/embedder/platform_channel_pair_win.cc
deleted file mode 100644
index 418e63418085c538d0f4040c9c95cf5afb2f5902..0000000000000000000000000000000000000000
--- a/mojo/system/embedder/platform_channel_pair_win.cc
+++ /dev/null
@@ -1,117 +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/system/embedder/platform_channel_pair.h"
-
-#include <windows.h>
-
-#include <string>
-
-#include "base/command_line.h"
-#include "base/logging.h"
-#include "base/rand_util.h"
-#include "base/strings/string_number_conversions.h"
-#include "base/strings/stringprintf.h"
-#include "base/win/windows_version.h"
-#include "mojo/system/embedder/platform_handle.h"
-
-namespace mojo {
-namespace embedder {
-
-namespace {
-
-std::wstring GeneratePipeName() {
- return base::StringPrintf(
- L"\\\\.\\pipe\\mojo.%u.%u.%I64u",
- GetCurrentProcessId(), GetCurrentThreadId(), base::RandUint64());
-}
-
-} // namespace
-
-PlatformChannelPair::PlatformChannelPair() {
- std::wstring pipe_name = GeneratePipeName();
-
- const DWORD kOpenMode = PIPE_ACCESS_DUPLEX | FILE_FLAG_OVERLAPPED |
- FILE_FLAG_FIRST_PIPE_INSTANCE;
- const DWORD kPipeMode = PIPE_TYPE_BYTE | PIPE_READMODE_BYTE;
- server_handle_.reset(PlatformHandle(
- CreateNamedPipeW(pipe_name.c_str(),
- kOpenMode,
- kPipeMode,
- 1, // Max instances.
- 4096, // Out buffer size.
- 4096, // In buffer size.
- 5000, // Timeout in milliseconds.
- NULL))); // Default security descriptor.
- PCHECK(server_handle_.is_valid());
-
- const DWORD kDesiredAccess = GENERIC_READ | GENERIC_WRITE;
- // The SECURITY_ANONYMOUS flag means that the server side cannot impersonate
- // the client.
- const DWORD kFlags = SECURITY_SQOS_PRESENT | SECURITY_ANONYMOUS |
- FILE_FLAG_OVERLAPPED;
- // Allow the handle to be inherited by child processes.
- SECURITY_ATTRIBUTES security_attributes = {
- sizeof(SECURITY_ATTRIBUTES), NULL, TRUE
- };
- client_handle_.reset(PlatformHandle(
- CreateFileW(pipe_name.c_str(),
- kDesiredAccess,
- 0, // No sharing.
- &security_attributes,
- OPEN_EXISTING,
- kFlags,
- NULL))); // No template file.
- PCHECK(client_handle_.is_valid());
-
- // Since a client has connected, ConnectNamedPipe() should return zero and
- // GetLastError() should return ERROR_PIPE_CONNECTED.
- CHECK(!ConnectNamedPipe(server_handle_.get().handle, NULL));
- PCHECK(GetLastError() == ERROR_PIPE_CONNECTED);
-}
-
-// static
-ScopedPlatformHandle PlatformChannelPair::PassClientHandleFromParentProcess(
- const CommandLine& command_line) {
- std::string client_handle_string =
- command_line.GetSwitchValueASCII(kMojoPlatformChannelHandleSwitch);
-
- int client_handle_value = 0;
- if (client_handle_string.empty() ||
- !base::StringToInt(client_handle_string, &client_handle_value)) {
- LOG(ERROR) << "Missing or invalid --" << kMojoPlatformChannelHandleSwitch;
- return ScopedPlatformHandle();
- }
-
- return ScopedPlatformHandle(
- PlatformHandle(LongToHandle(client_handle_value)));
-}
-
-void PlatformChannelPair::PrepareToPassClientHandleToChildProcess(
- CommandLine* command_line,
- base::HandlesToInheritVector* handle_passing_info) const {
- DCHECK(command_line);
- DCHECK(handle_passing_info);
- DCHECK(client_handle_.is_valid());
-
- CHECK_GE(base::win::GetVersion(), base::win::VERSION_VISTA);
-
- handle_passing_info->push_back(client_handle_.get().handle);
-
- // Log a warning if the command line already has the switch, but "clobber" it
- // anyway, since it's reasonably likely that all the switches were just copied
- // from the parent.
- LOG_IF(WARNING, command_line->HasSwitch(kMojoPlatformChannelHandleSwitch))
- << "Child command line already has switch --"
- << kMojoPlatformChannelHandleSwitch << "="
- << command_line->GetSwitchValueASCII(kMojoPlatformChannelHandleSwitch);
- // (Any existing switch won't actually be removed from the command line, but
- // the last one appended takes precedence.)
- command_line->AppendSwitchASCII(
- kMojoPlatformChannelHandleSwitch,
- base::IntToString(HandleToLong(client_handle_.get().handle)));
-}
-
-} // namespace embedder
-} // namespace mojo
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