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https://github.com/encounter/dawn-cmake.git
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c7f416c0c9
Unify code generation for Client->Server and Server->Client commands. Methods in dawn.json are converted into command records and additional commands are specified in dawn_wire.json. This can then be used to completely generate the command handlers and command struct definitions. Bug: dawn:88 Change-Id: Ic796796ede0aafe02e14f1f96790324dad92f4c0 Reviewed-on: https://dawn-review.googlesource.com/c/3800 Commit-Queue: Austin Eng <enga@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org>
61 lines
1.9 KiB
C++
61 lines
1.9 KiB
C++
// Copyright 2019 The Dawn Authors
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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 "dawn_wire/WireDeserializeAllocator.h"
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#include <algorithm>
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namespace dawn_wire {
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WireDeserializeAllocator::WireDeserializeAllocator() {
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Reset();
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}
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WireDeserializeAllocator::~WireDeserializeAllocator() {
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Reset();
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}
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void* WireDeserializeAllocator::GetSpace(size_t size) {
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// Return space in the current buffer if possible first.
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if (mRemainingSize >= size) {
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char* buffer = mCurrentBuffer;
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mCurrentBuffer += size;
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mRemainingSize -= size;
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return buffer;
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}
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// Otherwise allocate a new buffer and try again.
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size_t allocationSize = std::max(size, size_t(2048));
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char* allocation = static_cast<char*>(malloc(allocationSize));
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if (allocation == nullptr) {
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return nullptr;
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}
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mAllocations.push_back(allocation);
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mCurrentBuffer = allocation;
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mRemainingSize = allocationSize;
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return GetSpace(size);
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}
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void WireDeserializeAllocator::Reset() {
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for (auto allocation : mAllocations) {
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free(allocation);
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}
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mAllocations.clear();
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// The initial buffer is the inline buffer so that some allocations can be skipped
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mCurrentBuffer = mStaticBuffer;
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mRemainingSize = sizeof(mStaticBuffer);
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}
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} // namespace dawn_wire
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