1 // Copyright 2019 The Dawn Authors 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #ifndef DAWNWIRE_WIREDESERIALIZEALLOCATOR_H_ 16 #define DAWNWIRE_WIREDESERIALIZEALLOCATOR_H_ 17 18 #include "dawn_wire/WireCmd_autogen.h" 19 20 #include <vector> 21 22 namespace dawn_wire { 23 // A really really simple implementation of the DeserializeAllocator. It's main feature 24 // is that it has some inline storage so as to avoid allocations for the majority of 25 // commands. 26 class WireDeserializeAllocator : public DeserializeAllocator { 27 public: 28 WireDeserializeAllocator(); 29 virtual ~WireDeserializeAllocator(); 30 31 void* GetSpace(size_t size) override; 32 33 void Reset(); 34 35 private: 36 size_t mRemainingSize = 0; 37 char* mCurrentBuffer = nullptr; 38 char mStaticBuffer[2048]; 39 std::vector<char*> mAllocations; 40 }; 41 } // namespace dawn_wire 42 43 #endif // DAWNWIRE_WIREDESERIALIZEALLOCATOR_H_ 44