80c663882a
Summary: First draft. Unit tests pass. Test Plan: unit tests attached Reviewers: heyongqiang Reviewed By: heyongqiang Differential Revision: https://reviews.facebook.net/D3969
65 lines
2.1 KiB
C++
65 lines
2.1 KiB
C++
/*
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* Licensed to the Apache Software Foundation (ASF) under one
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* or more contributor license agreements. See the NOTICE file
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* distributed with this work for additional information
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* regarding copyright ownership. The ASF licenses this file
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* to you under the Apache License, Version 2.0 (the
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* "License"); you may not use this file except in compliance
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* with the License. You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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* KIND, either express or implied. See the License for the
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* specific language governing permissions and limitations
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* under the License.
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*/
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#ifndef THRIFT_UTIL_VARINTUTILS_H_
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#define THRIFT_UTIL_VARINTUTILS_H_ 1
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#include <stdint.h>
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namespace apache { namespace thrift {
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namespace util {
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/**
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* Read an i16 from the wire as a varint. The MSB of each byte is set
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* if there is another byte to follow. This can read up to 3 bytes.
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*/
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uint32_t readVarint16(uint8_t const* ptr, int16_t* i16,
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uint8_t const* boundary);
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/**
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* Read an i32 from the wire as a varint. The MSB of each byte is set
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* if there is another byte to follow. This can read up to 5 bytes.
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*/
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uint32_t readVarint32(uint8_t const* ptr, int32_t* i32,
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uint8_t const* boundary);
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/**
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* Read an i64 from the wire as a proper varint. The MSB of each byte is set
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* if there is another byte to follow. This can read up to 10 bytes.
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* Caller is responsible for advancing ptr after call.
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*/
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uint32_t readVarint64(uint8_t const* ptr, int64_t* i64,
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uint8_t const* boundary);
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/**
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* Write an i32 as a varint. Results in 1-5 bytes on the wire.
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*/
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uint32_t writeVarint32(uint32_t n, uint8_t* pkt);
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/**
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* Write an i16 as a varint. Results in 1-3 bytes on the wire.
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*/
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uint32_t writeVarint16(uint16_t n, uint8_t* pkt);
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}}} // apache::thrift::util
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#include "VarintUtils.tcc"
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#endif // THRIFT_UTIL_VARINTUTILS_H_
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