dc2d49fe07
In our storage engine's code, we cast StringValue to Slice. Because their memory layout is different, it may cause BE process crash. We make their memory layout same in this patch to resolve this problem temporary. We should improve it some day.
64 lines
1.9 KiB
C++
64 lines
1.9 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 <boost/algorithm/string.hpp>
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#include "runtime/descriptors.h"
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#include "runtime/mem_pool.h"
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#include "runtime/runtime_state.h"
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#include "runtime/string_value.h"
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#include "runtime/tuple.h"
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#include "text_converter.h"
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#include "util/string_parser.hpp"
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namespace doris {
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TextConverter::TextConverter(char escape_char)
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: _escape_char(escape_char) {
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}
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void TextConverter::unescape_string(StringValue* value, MemPool* pool) {
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char* new_data = reinterpret_cast<char*>(pool->allocate(value->len));
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unescape_string(value->ptr, new_data, &value->len);
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value->ptr = new_data;
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}
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void TextConverter::unescape_string(const char* src, char* dest, size_t* len) {
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char* dest_ptr = dest;
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const char* end = src + *len;
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bool escape_next_char = false;
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while (src < end) {
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if (*src == _escape_char) {
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escape_next_char = !escape_next_char;
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} else {
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escape_next_char = false;
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}
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if (escape_next_char) {
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++src;
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} else {
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*dest_ptr++ = *src++;
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}
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}
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char* dest_start = reinterpret_cast<char*>(dest);
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*len = dest_ptr - dest_start;
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}
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}
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