| // Licensed to the Apache Software Foundation (ASF) under one |
| // or more contributor license agreements. See the NOTICE file |
| // distributed with this work for additional information |
| // regarding copyright ownership. The ASF licenses this file |
| // to you 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 "exec/read_write_util.h" |
| |
| namespace doris { |
| |
| int ReadWriteUtil::put_zint(int32_t integer, uint8_t* buf) { |
| // Move the sign bit to the first bit. |
| uint32_t uinteger = (integer << 1) ^ (integer >> 31); |
| const int mask = 0x7f; |
| const int cont = 0x80; |
| buf[0] = uinteger & mask; |
| int len = 1; |
| |
| while ((uinteger >>= 7) != 0) { |
| // Set the continuation bit. |
| buf[len - 1] |= cont; |
| buf[len] = uinteger & mask; |
| ++len; |
| } |
| |
| return len; |
| } |
| |
| int ReadWriteUtil::put_zlong(int64_t longint, uint8_t* buf) { |
| // Move the sign bit to the first bit. |
| uint64_t ulongint = (longint << 1) ^ (longint >> 63); |
| const int mask = 0x7f; |
| const int cont = 0x80; |
| buf[0] = ulongint & mask; |
| int len = 1; |
| |
| while ((ulongint >>= 7) != 0) { |
| // Set the continuation bit. |
| buf[len - 1] |= cont; |
| buf[len] = ulongint & mask; |
| ++len; |
| } |
| |
| return len; |
| } |
| |
| std::string ReadWriteUtil::hex_dump(const uint8_t* buf, int64_t length) { |
| std::stringstream ss; |
| ss << std::hex; |
| |
| for (int i = 0; i < length; ++i) { |
| ss << static_cast<int>(buf[i]) << " "; |
| } |
| |
| return ss.str(); |
| } |
| |
| std::string ReadWriteUtil::hex_dump(const char* buf, int64_t length) { |
| return hex_dump(reinterpret_cast<const uint8_t*>(buf), length); |
| } |
| } |