crashpad/minidump/minidump_handle_writer.cc
Mark Mentovai 88442dd578 Merge Chromium 294442c0ce05 upstream to Crashpad
Remove stl_util from Crashpad. This also updates mini_chromium to
4f3cfc8e7c2b7d77f94f41a32c3ec84a6920f05d to remove stl_util from there
as well.

4f3cfc8e7c2b Remove stl_util from mini_chromium

BUG=chromium:555865

Change-Id: I8ecb1639a258dd233d524834ed205a4fcc641bac
Reviewed-on: https://chromium-review.googlesource.com/438865
Reviewed-by: Scott Graham <scottmg@chromium.org>
2017-02-07 21:04:42 +00:00

128 lines
4.2 KiB
C++

// Copyright 2015 The Crashpad Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "minidump/minidump_handle_writer.h"
#include <string>
#include "base/logging.h"
#include "minidump/minidump_extensions.h"
#include "util/file/file_writer.h"
#include "util/numeric/safe_assignment.h"
namespace crashpad {
MinidumpHandleDataWriter::MinidumpHandleDataWriter()
: handle_data_stream_base_(), handle_descriptors_(), strings_() {
}
MinidumpHandleDataWriter::~MinidumpHandleDataWriter() {
for (auto& item : strings_)
delete item.second;
}
void MinidumpHandleDataWriter::InitializeFromSnapshot(
const std::vector<HandleSnapshot>& handle_snapshots) {
DCHECK_EQ(state(), kStateMutable);
DCHECK(handle_descriptors_.empty());
// Because we RegisterRVA() on the string writer below, we preallocate and
// never resize the handle_descriptors_ vector.
handle_descriptors_.resize(handle_snapshots.size());
for (size_t i = 0; i < handle_snapshots.size(); ++i) {
const HandleSnapshot& handle_snapshot = handle_snapshots[i];
MINIDUMP_HANDLE_DESCRIPTOR& descriptor = handle_descriptors_[i];
descriptor.Handle = handle_snapshot.handle;
if (handle_snapshot.type_name.empty()) {
descriptor.TypeNameRva = 0;
} else {
auto it = strings_.lower_bound(handle_snapshot.type_name);
internal::MinidumpUTF16StringWriter* writer;
if (it != strings_.end() && it->first == handle_snapshot.type_name) {
writer = it->second;
} else {
writer = new internal::MinidumpUTF16StringWriter();
strings_.insert(it, std::make_pair(handle_snapshot.type_name, writer));
writer->SetUTF8(handle_snapshot.type_name);
}
writer->RegisterRVA(&descriptor.TypeNameRva);
}
descriptor.ObjectNameRva = 0;
descriptor.Attributes = handle_snapshot.attributes;
descriptor.GrantedAccess = handle_snapshot.granted_access;
descriptor.HandleCount = handle_snapshot.handle_count;
descriptor.PointerCount = handle_snapshot.pointer_count;
}
}
bool MinidumpHandleDataWriter::Freeze() {
DCHECK_EQ(state(), kStateMutable);
if (!MinidumpStreamWriter::Freeze())
return false;
handle_data_stream_base_.SizeOfHeader = sizeof(handle_data_stream_base_);
handle_data_stream_base_.SizeOfDescriptor = sizeof(handle_descriptors_[0]);
const size_t handle_count = handle_descriptors_.size();
if (!AssignIfInRange(&handle_data_stream_base_.NumberOfDescriptors,
handle_count)) {
LOG(ERROR) << "handle_count " << handle_count << " out of range";
return false;
}
handle_data_stream_base_.Reserved = 0;
return true;
}
size_t MinidumpHandleDataWriter::SizeOfObject() {
DCHECK_GE(state(), kStateFrozen);
return sizeof(handle_data_stream_base_) +
sizeof(handle_descriptors_[0]) * handle_descriptors_.size();
}
std::vector<internal::MinidumpWritable*> MinidumpHandleDataWriter::Children() {
DCHECK_GE(state(), kStateFrozen);
std::vector<MinidumpWritable*> children;
for (const auto& pair : strings_)
children.push_back(pair.second);
return children;
}
bool MinidumpHandleDataWriter::WriteObject(FileWriterInterface* file_writer) {
DCHECK_EQ(state(), kStateWritable);
WritableIoVec iov;
iov.iov_base = &handle_data_stream_base_;
iov.iov_len = sizeof(handle_data_stream_base_);
std::vector<WritableIoVec> iovecs(1, iov);
for (const auto& descriptor : handle_descriptors_) {
iov.iov_base = &descriptor;
iov.iov_len = sizeof(descriptor);
iovecs.push_back(iov);
}
return file_writer->WriteIoVec(&iovecs);
}
MinidumpStreamType MinidumpHandleDataWriter::StreamType() const {
return kMinidumpStreamTypeHandleData;
}
} // namespace crashpad