3 * Copyright 2015 gRPC authors.
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
19 #ifndef GRPC_CORE_LIB_COMPRESSION_COMPRESSION_ARGS_H
20 #define GRPC_CORE_LIB_COMPRESSION_COMPRESSION_ARGS_H
22 #include <grpc/support/port_platform.h>
24 #include <grpc/compression.h>
25 #include <grpc/impl/codegen/grpc_types.h>
27 /** Returns the compression algorithm set in \a a. */
28 grpc_compression_algorithm grpc_channel_args_get_compression_algorithm(
29 const grpc_channel_args* a);
31 /** Returns a channel arg instance with compression enabled. If \a a is
32 * non-NULL, its args are copied. N.B. GRPC_COMPRESS_NONE disables compression
34 grpc_channel_args* grpc_channel_args_set_compression_algorithm(
35 grpc_channel_args* a, grpc_compression_algorithm algorithm);
37 /** Sets the support for the given compression algorithm. By default, all
38 * compression algorithms are enabled. It's an error to disable an algorithm set
39 * by grpc_channel_args_set_compression_algorithm.
41 * Returns an instance with the updated algorithm states. The \a a pointer is
42 * modified to point to the returned instance (which may be different from the
43 * input value of \a a). */
44 grpc_channel_args* grpc_channel_args_compression_algorithm_set_state(
45 grpc_channel_args** a, grpc_compression_algorithm algorithm, int state);
47 /** Returns the bitset representing the support state (true for enabled, false
48 * for disabled) for compression algorithms.
50 * The i-th bit of the returned bitset corresponds to the i-th entry in the
51 * grpc_compression_algorithm enum. */
52 uint32_t grpc_channel_args_compression_algorithm_get_states(
53 const grpc_channel_args* a);
55 #endif /* GRPC_CORE_LIB_COMPRESSION_COMPRESSION_ARGS_H */