1 // Copyright 2021 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 
15 #ifndef GRPC_SRC_CORE_LIB_RESOURCE_QUOTA_API_H
16 #define GRPC_SRC_CORE_LIB_RESOURCE_QUOTA_API_H
17 
18 #include <grpc/support/port_platform.h>
19 
20 #include <stddef.h>
21 
22 #include <grpc/event_engine/endpoint_config.h>
23 #include <grpc/grpc.h>
24 
25 #include "src/core/lib/config/core_configuration.h"
26 #include "src/core/lib/resource_quota/resource_quota.h"
27 
28 typedef struct grpc_resource_quota grpc_resource_quota;
29 
30 namespace grpc_core {
31 
32 // TODO(ctiller): This is a hack. We need to do real accounting instead of
33 // hard coding.
34 constexpr size_t kResourceQuotaChannelSize = 34 * 1024;
35 
36 // Retrieve the resource quota from the channel args.
37 // UB if not set.
38 ResourceQuotaRefPtr ResourceQuotaFromChannelArgs(const grpc_channel_args* args);
39 
40 // Retrieve the resource quota from the EndpointConfig.
41 // Returns nullptr if not set.
42 ResourceQuotaRefPtr ResourceQuotaFromEndpointConfig(
43     const grpc_event_engine::experimental::EndpointConfig& config);
44 
45 void RegisterResourceQuota(CoreConfiguration::Builder* builder);
46 
47 }  // namespace grpc_core
48 
49 #endif  // GRPC_SRC_CORE_LIB_RESOURCE_QUOTA_API_H
50