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Versions: 31
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Contents
/*
*
* 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/ext/transport/chttp2/transport/varint.h"
#include "absl/base/attributes.h"
namespace grpc_core {
uint32_t VarintLength(uint32_t tail_value) {
if (tail_value < (1 << 7)) {
return 2;
} else if (tail_value < (1 << 14)) {
return 3;
} else if (tail_value < (1 << 21)) {
return 4;
} else if (tail_value < (1 << 28)) {
return 5;
} else {
return 6;
}
}
void VarintWriteTail(uint32_t tail_value, uint8_t* target,
uint32_t tail_length) {
switch (tail_length) {
case 5:
target[4] = static_cast<uint8_t>((tail_value >> 28) | 0x80);
ABSL_FALLTHROUGH_INTENDED;
case 4:
target[3] = static_cast<uint8_t>((tail_value >> 21) | 0x80);
ABSL_FALLTHROUGH_INTENDED;
case 3:
target[2] = static_cast<uint8_t>((tail_value >> 14) | 0x80);
ABSL_FALLTHROUGH_INTENDED;
case 2:
target[1] = static_cast<uint8_t>((tail_value >> 7) | 0x80);
ABSL_FALLTHROUGH_INTENDED;
case 1:
target[0] = static_cast<uint8_t>((tail_value) | 0x80);
}
target[tail_length - 1] &= 0x7f;
}
} // namespace grpc_core
Version data entries
31 entries across 31 versions & 3 rubygems