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4a34a3dd89
Factor out some test launching code used in cross-bitness tests. R=mark@chromium.org BUG=crashpad:50 Review URL: https://codereview.chromium.org/1352323002 .
115 lines
4.1 KiB
C++
115 lines
4.1 KiB
C++
// Copyright 2015 The Crashpad Authors. All rights reserved.
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#include "test/win/child_launcher.h"
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#include "gtest/gtest.h"
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namespace crashpad {
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namespace test {
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ChildLauncher::ChildLauncher(const std::wstring& executable,
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const std::wstring& command_line)
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: executable_(executable),
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command_line_(command_line),
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process_handle_(),
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main_thread_handle_(),
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stdout_read_handle_() {
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}
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ChildLauncher::~ChildLauncher() {
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EXPECT_EQ(WAIT_OBJECT_0,
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WaitForSingleObject(process_handle_.get(), INFINITE));
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}
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void ChildLauncher::Start() {
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ASSERT_FALSE(process_handle_.is_valid());
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ASSERT_FALSE(main_thread_handle_.is_valid());
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ASSERT_FALSE(stdout_read_handle_.is_valid());
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// Create a pipe for the stdout of the child.
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SECURITY_ATTRIBUTES security_attributes = {0};
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security_attributes.nLength = sizeof(SECURITY_ATTRIBUTES);
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security_attributes.bInheritHandle = true;
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HANDLE stdout_read;
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HANDLE stdout_write;
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ASSERT_TRUE(CreatePipe(&stdout_read, &stdout_write, &security_attributes, 0));
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stdout_read_handle_.reset(stdout_read);
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ScopedFileHANDLE write_handle(stdout_write);
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ASSERT_TRUE(
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SetHandleInformation(stdout_read_handle_.get(), HANDLE_FLAG_INHERIT, 0));
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STARTUPINFO startup_info = {0};
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startup_info.cb = sizeof(startup_info);
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startup_info.hStdInput = GetStdHandle(STD_INPUT_HANDLE);
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startup_info.hStdOutput = write_handle.get();
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startup_info.hStdError = GetStdHandle(STD_ERROR_HANDLE);
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startup_info.dwFlags = STARTF_USESTDHANDLES;
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PROCESS_INFORMATION process_information;
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std::wstring command_line;
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AppendCommandLineArgument(executable_, &command_line);
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command_line += L" ";
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command_line += command_line_;
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ASSERT_TRUE(CreateProcess(executable_.c_str(),
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&command_line[0],
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nullptr,
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nullptr,
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true,
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0,
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nullptr,
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nullptr,
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&startup_info,
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&process_information));
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// Take ownership of the two process handles returned.
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main_thread_handle_.reset(process_information.hThread);
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process_handle_.reset(process_information.hProcess);
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}
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// Ref: http://blogs.msdn.com/b/twistylittlepassagesallalike/archive/2011/04/23/everyone-quotes-arguments-the-wrong-way.aspx
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void AppendCommandLineArgument(const std::wstring& argument,
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std::wstring* command_line) {
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// Don't bother quoting if unnecessary.
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if (!argument.empty() &&
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argument.find_first_of(L" \t\n\v\"") == std::wstring::npos) {
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command_line->append(argument);
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} else {
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command_line->push_back(L'"');
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for (std::wstring::const_iterator i = argument.begin();; ++i) {
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size_t backslash_count = 0;
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while (i != argument.end() && *i == L'\\') {
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++i;
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++backslash_count;
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}
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if (i == argument.end()) {
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// Escape all backslashes, but let the terminating double quotation mark
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// we add below be interpreted as a metacharacter.
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command_line->append(backslash_count * 2, L'\\');
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break;
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} else if (*i == L'"') {
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// Escape all backslashes and the following double quotation mark.
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command_line->append(backslash_count * 2 + 1, L'\\');
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command_line->push_back(*i);
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} else {
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// Backslashes aren't special here.
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command_line->append(backslash_count, L'\\');
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command_line->push_back(*i);
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}
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}
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command_line->push_back(L'"');
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}
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}
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} // namespace test
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} // namespace crashpad
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