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583d1dc3ef
This more-natural spelling doesn’t require Crashpad developers to have to remember anything special when writing code in Crashpad. It’s easier to grep for and it’s easier to remove the “compat” part when pre-C++11 libraries are no longer relevant. R=scottmg@chromium.org Review URL: https://codereview.chromium.org/1513573005 .
124 lines
3.6 KiB
C++
124 lines
3.6 KiB
C++
// Copyright 2014 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 "minidump/minidump_exception_writer.h"
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#include <sys/types.h>
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#include <utility>
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#include "base/logging.h"
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#include "base/numerics/safe_conversions.h"
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#include "minidump/minidump_context_writer.h"
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#include "snapshot/exception_snapshot.h"
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#include "util/file/file_writer.h"
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namespace crashpad {
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MinidumpExceptionWriter::MinidumpExceptionWriter()
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: MinidumpStreamWriter(), exception_(), context_(nullptr) {
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}
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MinidumpExceptionWriter::~MinidumpExceptionWriter() {
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}
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void MinidumpExceptionWriter::InitializeFromSnapshot(
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const ExceptionSnapshot* exception_snapshot,
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const MinidumpThreadIDMap& thread_id_map) {
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DCHECK_EQ(state(), kStateMutable);
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DCHECK(!context_);
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auto thread_id_it = thread_id_map.find(exception_snapshot->ThreadID());
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DCHECK(thread_id_it != thread_id_map.end());
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SetThreadID(thread_id_it->second);
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SetExceptionCode(exception_snapshot->Exception());
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SetExceptionFlags(exception_snapshot->ExceptionInfo());
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SetExceptionAddress(exception_snapshot->ExceptionAddress());
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SetExceptionInformation(exception_snapshot->Codes());
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scoped_ptr<MinidumpContextWriter> context =
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MinidumpContextWriter::CreateFromSnapshot(exception_snapshot->Context());
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SetContext(std::move(context));
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}
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void MinidumpExceptionWriter::SetContext(
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scoped_ptr<MinidumpContextWriter> context) {
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DCHECK_EQ(state(), kStateMutable);
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context_ = std::move(context);
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}
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void MinidumpExceptionWriter::SetExceptionInformation(
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const std::vector<uint64_t>& exception_information) {
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DCHECK_EQ(state(), kStateMutable);
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const size_t parameters = exception_information.size();
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const size_t kMaxParameters =
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arraysize(exception_.ExceptionRecord.ExceptionInformation);
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CHECK_LE(parameters, kMaxParameters);
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exception_.ExceptionRecord.NumberParameters =
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base::checked_cast<uint32_t>(parameters);
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size_t parameter = 0;
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for (; parameter < parameters; ++parameter) {
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exception_.ExceptionRecord.ExceptionInformation[parameter] =
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exception_information[parameter];
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}
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for (; parameter < kMaxParameters; ++parameter) {
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exception_.ExceptionRecord.ExceptionInformation[parameter] = 0;
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}
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}
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bool MinidumpExceptionWriter::Freeze() {
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DCHECK_EQ(state(), kStateMutable);
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CHECK(context_);
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if (!MinidumpStreamWriter::Freeze()) {
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return false;
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}
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context_->RegisterLocationDescriptor(&exception_.ThreadContext);
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return true;
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}
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size_t MinidumpExceptionWriter::SizeOfObject() {
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DCHECK_GE(state(), kStateFrozen);
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return sizeof(exception_);
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}
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std::vector<internal::MinidumpWritable*> MinidumpExceptionWriter::Children() {
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DCHECK_GE(state(), kStateFrozen);
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DCHECK(context_);
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std::vector<MinidumpWritable*> children;
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children.push_back(context_.get());
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return children;
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}
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bool MinidumpExceptionWriter::WriteObject(FileWriterInterface* file_writer) {
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DCHECK_EQ(state(), kStateWritable);
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return file_writer->Write(&exception_, sizeof(exception_));
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}
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MinidumpStreamType MinidumpExceptionWriter::StreamType() const {
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return kMinidumpStreamTypeException;
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}
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} // namespace crashpad
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