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2d87606bb5
Previously, StartHandler() launched the handler process, then connected over a pipe to register for crash handling. Instead, the initial client can create and inherit handles to the handler and pass those handle values and other data (addresses, etc.) on the command line. This should improve startup time as there's no need to synchronize with the process at startup, and allows avoiding a call to CreateProcess() directly in StartHandler(), which is important for registration for crash reporting from DllMain(). Incidentally adds new utility functions for string/number conversion and string splitting. Note: API change; UseHandler() is removed for all platforms. BUG=chromium:567850,chromium:656800 Change-Id: I1602724183cb107f805f109674c53e95841b24fd Reviewed-on: https://chromium-review.googlesource.com/400015 Reviewed-by: Mark Mentovai <mark@chromium.org>
114 lines
4.1 KiB
C++
114 lines
4.1 KiB
C++
// Copyright 2016 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 "util/win/initial_client_data.h"
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#include <vector>
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#include "base/logging.h"
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#include "base/strings/stringprintf.h"
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#include "util/stdlib/string_number_conversion.h"
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#include "util/string/split_string.h"
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#include "util/win/handle.h"
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namespace crashpad {
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namespace {
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bool HandleFromString(const std::string& str, HANDLE* handle) {
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unsigned int handle_uint;
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if (!StringToNumber(str, &handle_uint) ||
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(*handle = IntToHandle(handle_uint)) == INVALID_HANDLE_VALUE) {
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LOG(ERROR) << "could not convert '" << str << "' to HANDLE";
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return false;
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}
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return true;
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}
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bool AddressFromString(const std::string& str, WinVMAddress* address) {
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if (!StringToNumber(str, address)) {
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LOG(ERROR) << "could not convert '" << str << "' to WinVMAddress";
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return false;
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}
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return true;
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}
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} // namespace
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InitialClientData::InitialClientData()
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: crash_exception_information_(0),
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non_crash_exception_information_(0),
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debug_critical_section_address_(0),
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request_crash_dump_(nullptr),
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request_non_crash_dump_(nullptr),
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non_crash_dump_completed_(nullptr),
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first_pipe_instance_(INVALID_HANDLE_VALUE),
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client_process_(nullptr),
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is_valid_(false) {}
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InitialClientData::InitialClientData(
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HANDLE request_crash_dump,
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HANDLE request_non_crash_dump,
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HANDLE non_crash_dump_completed,
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HANDLE first_pipe_instance,
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HANDLE client_process,
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WinVMAddress crash_exception_information,
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WinVMAddress non_crash_exception_information,
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WinVMAddress debug_critical_section_address)
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: crash_exception_information_(crash_exception_information),
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non_crash_exception_information_(non_crash_exception_information),
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debug_critical_section_address_(debug_critical_section_address),
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request_crash_dump_(request_crash_dump),
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request_non_crash_dump_(request_non_crash_dump),
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non_crash_dump_completed_(non_crash_dump_completed),
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first_pipe_instance_(first_pipe_instance),
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client_process_(client_process),
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is_valid_(true) {}
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bool InitialClientData::InitializeFromString(const std::string& str) {
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std::vector<std::string> parts(SplitString(str, ','));
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if (parts.size() != 8) {
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LOG(ERROR) << "expected 8 comma separated arguments";
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return false;
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}
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if (!HandleFromString(parts[0], &request_crash_dump_) ||
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!HandleFromString(parts[1], &request_non_crash_dump_) ||
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!HandleFromString(parts[2], &non_crash_dump_completed_) ||
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!HandleFromString(parts[3], &first_pipe_instance_) ||
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!HandleFromString(parts[4], &client_process_) ||
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!AddressFromString(parts[5], &crash_exception_information_) ||
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!AddressFromString(parts[6], &non_crash_exception_information_) ||
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!AddressFromString(parts[7], &debug_critical_section_address_)) {
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return false;
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}
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is_valid_ = true;
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return true;
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}
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std::string InitialClientData::StringRepresentation() const {
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return base::StringPrintf("0x%x,0x%x,0x%x,0x%x,0x%x,0x%I64x,0x%I64x,0x%I64x",
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HandleToInt(request_crash_dump_),
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HandleToInt(request_non_crash_dump_),
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HandleToInt(non_crash_dump_completed_),
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HandleToInt(first_pipe_instance_),
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HandleToInt(client_process_),
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crash_exception_information_,
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non_crash_exception_information_,
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debug_critical_section_address_);
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}
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} // namespace crashpad
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