| // Copyright 2020 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 "snapshot/ios/memory_snapshot_ios.h" |
| |
| namespace crashpad { |
| namespace internal { |
| |
| void MemorySnapshotIOS::Initialize(vm_address_t address, vm_size_t size) { |
| INITIALIZATION_STATE_SET_INITIALIZING(initialized_); |
| address_ = address; |
| size_ = base::checked_cast<size_t>(size); |
| |
| // TODO(justincohen): This is temporary, as MemorySnapshotIOS will likely be |
| // able to point directly to the deserialized data dump rather than copying |
| // data around. |
| buffer_ = std::unique_ptr<uint8_t[]>(new uint8_t[size_]); |
| memcpy(buffer_.get(), reinterpret_cast<void*>(address_), size_); |
| INITIALIZATION_STATE_SET_VALID(initialized_); |
| } |
| |
| uint64_t MemorySnapshotIOS::Address() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return address_; |
| } |
| |
| size_t MemorySnapshotIOS::Size() const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| return size_; |
| } |
| |
| bool MemorySnapshotIOS::Read(Delegate* delegate) const { |
| INITIALIZATION_STATE_DCHECK_VALID(initialized_); |
| |
| if (size_ == 0) { |
| return delegate->MemorySnapshotDelegateRead(nullptr, size_); |
| } |
| |
| return delegate->MemorySnapshotDelegateRead(buffer_.get(), size_); |
| } |
| |
| const MemorySnapshot* MemorySnapshotIOS::MergeWithOtherSnapshot( |
| const MemorySnapshot* other) const { |
| CheckedRange<uint64_t, size_t> merged(0, 0); |
| if (!LoggingDetermineMergedRange(this, other, &merged)) |
| return nullptr; |
| |
| auto result = std::make_unique<MemorySnapshotIOS>(); |
| result->Initialize(merged.base(), merged.size()); |
| return result.release(); |
| } |
| |
| } // namespace internal |
| } // namespace crashpad |