73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
// 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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#include "exec/read_write_util.h"
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namespace doris {
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int ReadWriteUtil::put_zint(int32_t integer, uint8_t* buf) {
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// Move the sign bit to the first bit.
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uint32_t uinteger = (integer << 1) ^ (integer >> 31);
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const int mask = 0x7f;
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const int cont = 0x80;
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buf[0] = uinteger & mask;
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int len = 1;
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while ((uinteger >>= 7) != 0) {
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// Set the continuation bit.
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buf[len - 1] |= cont;
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buf[len] = uinteger & mask;
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++len;
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}
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return len;
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}
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int ReadWriteUtil::put_zlong(int64_t longint, uint8_t* buf) {
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// Move the sign bit to the first bit.
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uint64_t ulongint = (longint << 1) ^ (longint >> 63);
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const int mask = 0x7f;
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const int cont = 0x80;
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buf[0] = ulongint & mask;
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int len = 1;
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while ((ulongint >>= 7) != 0) {
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// Set the continuation bit.
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buf[len - 1] |= cont;
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buf[len] = ulongint & mask;
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++len;
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}
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return len;
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}
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std::string ReadWriteUtil::hex_dump(const uint8_t* buf, int64_t length) {
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std::stringstream ss;
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ss << std::hex;
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for (int i = 0; i < length; ++i) {
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ss << static_cast<int>(buf[i]) << " ";
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}
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return ss.str();
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}
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std::string ReadWriteUtil::hex_dump(const char* buf, int64_t length) {
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return hex_dump(reinterpret_cast<const uint8_t*>(buf), length);
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}
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}
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