src/core/ext/transport/chttp2/transport/chttp2_slice_allocator.cc

   1 // Copyright 2021 The gRPC 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 #include <grpc/support/port_platform.h>
  15
  16 #include "src/core/ext/transport/chttp2/transport/chttp2_slice_allocator.h"
  17
  18 #include <functional>
  19
  20 #include "absl/memory/memory.h"
  21 #include "absl/status/status.h"
  22
  23 #include <grpc/event_engine/slice_allocator.h>
  24
  25 #include "src/core/lib/iomgr/resource_quota.h"
  26
  27 namespace grpc_event_engine {
  28 namespace experimental {
  29
  30 Chttp2SliceAllocator::Chttp2SliceAllocator(grpc_resource_user* user)
  31     : resource_user_(user) {}
  32
  33 Chttp2SliceAllocator::~Chttp2SliceAllocator() {
  34   if (resource_user_ != nullptr) {
  35     grpc_resource_user_unref(resource_user_);
  36   }
  37 }
  38
  39 absl::Status Chttp2SliceAllocator::Allocate(
  40     size_t size, SliceBuffer* dest, SliceAllocator::AllocateCallback cb) {
  41   // TODO(hork): merge the implementation from the uv-ee branch.
  42   (void)size;
  43   (void)dest;
  44   (void)cb;
  45   return absl::OkStatus();
  46 }
  47
  48 Chttp2SliceAllocatorFactory::Chttp2SliceAllocatorFactory(
  49     grpc_resource_quota* quota)
  50     : resource_quota_(quota) {
  51   grpc_resource_quota_ref_internal(resource_quota_);
  52 }
  53
  54 Chttp2SliceAllocatorFactory::~Chttp2SliceAllocatorFactory() {
  55   if (resource_quota_ != nullptr) {
  56     grpc_resource_quota_unref_internal(resource_quota_);
  57   }
  58 }
  59
  60 std::unique_ptr<SliceAllocator>
  61 Chttp2SliceAllocatorFactory::CreateSliceAllocator(absl::string_view peer_name) {
  62   return absl::make_unique<Chttp2SliceAllocator>(
  63       grpc_resource_user_create(resource_quota_, peer_name));
  64 }
  65
  66 }  // namespace experimental
  67 }  // namespace grpc_event_engine