| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H |
| #define GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H |
| |
| #include <grpc/impl/codegen/compression_types.h> |
| |
| #include "src/core/lib/channel/channel_stack.h" |
| |
| /** Compression filter for outgoing data. |
| * |
| * See <grpc/compression.h> for the available compression settings. |
| * |
| * Compression settings may come from: |
| * - Channel configuration, as established at channel creation time. |
| * - The metadata accompanying the outgoing data to be compressed. This is |
| * taken as a request only. We may choose not to honor it. The metadata key |
| * is given by \a GRPC_COMPRESSION_REQUEST_ALGORITHM_MD_KEY. |
| * |
| * Compression can be disabled for concrete messages (for instance in order to |
| * prevent CRIME/BEAST type attacks) by having the GRPC_WRITE_NO_COMPRESS set in |
| * the BEGIN_MESSAGE flags. |
| * |
| * The attempted compression mechanism is added to the resulting initial |
| * metadata under the'grpc-encoding' key. |
| * |
| * If compression is actually performed, BEGIN_MESSAGE's flag is modified to |
| * incorporate GRPC_WRITE_INTERNAL_COMPRESS. Otherwise, and regardless of the |
| * aforementioned 'grpc-encoding' metadata value, data will pass through |
| * uncompressed. */ |
| |
| extern const grpc_channel_filter grpc_message_compress_filter; |
| |
| #endif /* GRPC_CORE_EXT_FILTERS_HTTP_MESSAGE_COMPRESS_MESSAGE_COMPRESS_FILTER_H \ |
| */ |