grpcio-sys 0.13.0+1.56.2-patched

FFI bindings to gRPC c core library
Documentation 
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//
//
// 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.
//
//

#include <grpc/support/port_platform.h>

#include <stdint.h>
#include <string.h>

#include "absl/types/optional.h"

#include <grpc/compression.h>
#include <grpc/impl/compression_types.h>
#include <grpc/slice.h>

#include "src/core/lib/compression/compression_internal.h"
#include "src/core/lib/debug/trace.h"
#include "src/core/lib/gpr/useful.h"
#include "src/core/lib/slice/slice_internal.h"
#include "src/core/lib/surface/api_trace.h"

int grpc_compression_algorithm_is_message(grpc_compression_algorithm) {
  return 1;
}

int grpc_compression_algorithm_is_stream(grpc_compression_algorithm) {
  return 0;
}

int grpc_compression_algorithm_parse(grpc_slice name,
                                     grpc_compression_algorithm* algorithm) {
  absl::optional<grpc_compression_algorithm> alg =
      grpc_core::ParseCompressionAlgorithm(
          grpc_core::StringViewFromSlice(name));
  if (alg.has_value()) {
    *algorithm = alg.value();
    return 1;
  }
  return 0;
}

int grpc_compression_algorithm_name(grpc_compression_algorithm algorithm,
                                    const char** name) {
  GRPC_API_TRACE("grpc_compression_algorithm_name(algorithm=%d, name=%p)", 2,
                 ((int)algorithm, name));
  const char* result = grpc_core::CompressionAlgorithmAsString(algorithm);
  if (result != nullptr) {
    *name = result;
    return 1;
  }
  return 0;
}

grpc_compression_algorithm grpc_compression_algorithm_for_level(
    grpc_compression_level level, uint32_t accepted_encodings) {
  return grpc_core::CompressionAlgorithmSet::FromUint32(accepted_encodings)
      .CompressionAlgorithmForLevel(level);
}

void grpc_compression_options_init(grpc_compression_options* opts) {
  memset(opts, 0, sizeof(*opts));
  // all enabled by default
  opts->enabled_algorithms_bitset = (1u << GRPC_COMPRESS_ALGORITHMS_COUNT) - 1;
}

void grpc_compression_options_enable_algorithm(
    grpc_compression_options* opts, grpc_compression_algorithm algorithm) {
  grpc_core::SetBit(&opts->enabled_algorithms_bitset, algorithm);
}

void grpc_compression_options_disable_algorithm(
    grpc_compression_options* opts, grpc_compression_algorithm algorithm) {
  grpc_core::ClearBit(&opts->enabled_algorithms_bitset, algorithm);
}

int grpc_compression_options_is_algorithm_enabled(
    const grpc_compression_options* opts,
    grpc_compression_algorithm algorithm) {
  return grpc_core::CompressionAlgorithmSet::FromUint32(
             opts->enabled_algorithms_bitset)
      .IsSet(algorithm);
}