chromium/third_party/grpc/src/src/core/lib/compression/message_compress.cc

//
//
// 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 "src/core/lib/compression/message_compress.h"

#include <string.h>

#include <zconf.h>
#include <zlib.h>

#include <grpc/slice_buffer.h>
#include <grpc/support/alloc.h>
#include <grpc/support/log.h>

#include "src/core/lib/slice/slice.h"

#define OUTPUT_BLOCK_SIZE …

static int zlib_body(z_stream* zs, grpc_slice_buffer* input,
                     grpc_slice_buffer* output,
                     int (*flate)(z_stream* zs, int flush)) { … }

static void* zalloc_gpr(void* /*opaque*/, unsigned int items,
                        unsigned int size) { … }

static void zfree_gpr(void* /*opaque*/, void* address) { … }

static int zlib_compress(grpc_slice_buffer* input, grpc_slice_buffer* output,
                         int gzip) { … }

static int zlib_decompress(grpc_slice_buffer* input, grpc_slice_buffer* output,
                           int gzip) { … }

static int copy(grpc_slice_buffer* input, grpc_slice_buffer* output) { … }

static int compress_inner(grpc_compression_algorithm algorithm,
                          grpc_slice_buffer* input, grpc_slice_buffer* output) { … }

int grpc_msg_compress(grpc_compression_algorithm algorithm,
                      grpc_slice_buffer* input, grpc_slice_buffer* output) { … }

int grpc_msg_decompress(grpc_compression_algorithm algorithm,
                        grpc_slice_buffer* input, grpc_slice_buffer* output) { … }