blob: 5d7fa887986f9ed3cd523ecdd1c91c92e81dc909 [file] [log] [blame]
// Copyright (c) 2011 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 "net/test/test_server.h"
#include <windows.h>
#include <wincrypt.h>
#include "base/base_paths.h"
#include "base/command_line.h"
#include "base/file_util.h"
#include "base/message_loop.h"
#include "base/path_service.h"
#include "base/string_number_conversions.h"
#include "base/string_util.h"
#include "base/test/test_timeouts.h"
#include "base/threading/thread.h"
#include "base/utf_string_conversions.h"
#include "base/win/scoped_handle.h"
#pragma comment(lib, "crypt32.lib")
namespace {
// Writes |size| bytes to |handle| and sets |*unblocked| to true.
// Used as a crude timeout mechanism by ReadData().
void UnblockPipe(HANDLE handle, DWORD size, bool* unblocked) {
std::string unblock_data(size, '\0');
// Unblock the ReadFile in TestServer::WaitToStart by writing to the pipe.
// Make sure the call succeeded, otherwise we are very likely to hang.
DWORD bytes_written = 0;
LOG(WARNING) << "Timeout reached; unblocking pipe by writing "
<< size << " bytes";
CHECK(WriteFile(handle,, size, &bytes_written,
CHECK_EQ(size, bytes_written);
*unblocked = true;
// Given a file handle, reads into |buffer| until |bytes_max| bytes
// has been read or an error has been encountered. Returns
// true if the read was successful.
bool ReadData(HANDLE read_fd, HANDLE write_fd,
DWORD bytes_max, uint8* buffer) {
base::Thread thread("test_server_watcher");
if (!thread.Start())
return false;
// Prepare a timeout in case the server fails to start.
bool unblocked = false;
NewRunnableFunction(UnblockPipe, write_fd, bytes_max, &unblocked),
DWORD bytes_read = 0;
while (bytes_read < bytes_max) {
DWORD num_bytes;
if (!ReadFile(read_fd, buffer + bytes_read, bytes_max - bytes_read,
&num_bytes, NULL)) {
PLOG(ERROR) << "ReadFile failed";
return false;
if (num_bytes <= 0) {
LOG(ERROR) << "ReadFile returned invalid byte count: " << num_bytes;
return false;
bytes_read += num_bytes;
// If the timeout kicked in, abort.
if (unblocked) {
LOG(ERROR) << "Timeout exceeded for ReadData";
return false;
return true;
} // namespace
namespace net {
bool TestServer::LaunchPython(const FilePath& testserver_path) {
FilePath python_exe;
if (!PathService::Get(base::DIR_SOURCE_ROOT, &python_exe))
return false;
python_exe = python_exe
CommandLine python_command(python_exe);
if (!AddCommandLineArguments(&python_command))
return false;
HANDLE child_read = NULL;
HANDLE child_write = NULL;
if (!CreatePipe(&child_read, &child_write, NULL, 0)) {
PLOG(ERROR) << "Failed to create pipe";
return false;
// Have the child inherit the write half.
if (!SetHandleInformation(child_write, HANDLE_FLAG_INHERIT,
PLOG(ERROR) << "Failed to enable pipe inheritance";
return false;
// Pass the handle on the command-line. Although HANDLE is a
// pointer, truncating it on 64-bit machines is okay. See
// "64-bit versions of Windows use 32-bit handles for
// interoperability. When sharing a handle between 32-bit and 64-bit
// applications, only the lower 32 bits are significant, so it is
// safe to truncate the handle (when passing it from 64-bit to
// 32-bit) or sign-extend the handle (when passing it from 32-bit to
// 64-bit)."
python_command.AppendArg("--startup-pipe=" +
job_handle_.Set(CreateJobObject(NULL, NULL));
if (!job_handle_.IsValid()) {
LOG(ERROR) << "Could not create JobObject.";
return false;
limit_info.BasicLimitInformation.LimitFlags =
if (0 == SetInformationJobObject(job_handle_.Get(),
JobObjectExtendedLimitInformation, &limit_info, sizeof(limit_info))) {
LOG(ERROR) << "Could not SetInformationJobObject.";
return false;
base::LaunchOptions launch_options;
launch_options.inherit_handles = true;
launch_options.job_handle = job_handle_.Get();
if (!base::LaunchProcess(python_command, launch_options, &process_handle_)) {
LOG(ERROR) << "Failed to launch " << python_command.GetCommandLineString();
return false;
return true;
bool TestServer::WaitToStart() {
base::win::ScopedHandle read_fd(child_read_fd_.Take());
base::win::ScopedHandle write_fd(child_write_fd_.Take());
uint32 server_data_len = 0;
if (!ReadData(read_fd.Get(), write_fd.Get(), sizeof(server_data_len),
reinterpret_cast<uint8*>(&server_data_len))) {
LOG(ERROR) << "Could not read server_data_len";
return false;
std::string server_data(server_data_len, '\0');
if (!ReadData(read_fd.Get(), write_fd.Get(), server_data_len,
reinterpret_cast<uint8*>(&server_data[0]))) {
LOG(ERROR) << "Could not read server_data (" << server_data_len
<< " bytes)";
return false;
if (!ParseServerData(server_data)) {
LOG(ERROR) << "Could not parse server_data: " << server_data;
return false;
return true;
} // namespace net