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fd9fe182d5
in aggregation code The patch disables padding that forces hasher to calculate over the whole 2k buffer. This patch also moves hashing code into the common place where it belongs.
79 lines
1.8 KiB
C++
79 lines
1.8 KiB
C++
/* Copyright (C) 2020 MariaDB Corporation.
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This program is free software; you can redistribute it and/or
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modify it under the terms of the GNU General Public License
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as published by the Free Software Foundation; version 2 of
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the License.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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MA 02110-1301, USA. */
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#ifndef MARIADB_CONSTSTRING_H
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#define MARIADB_CONSTSTRING_H
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namespace utils
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{
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class ConstString
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{
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protected:
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const char* mStr;
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size_t mLength;
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public:
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ConstString(const char* str, size_t length) : mStr(str), mLength(length)
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{
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}
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explicit ConstString(const std::string& str) : mStr(str.data()), mLength(str.length())
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{
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}
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const char* str() const
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{
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return mStr;
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}
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const char* end() const
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{
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return mStr + mLength;
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}
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size_t length() const
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{
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return mLength;
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}
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std::string toString() const
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{
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return std::string(mStr, mLength);
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}
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bool eq(char ch) const
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{
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return mLength == 1 && mStr[0] == ch;
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}
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bool eq(const ConstString& rhs) const
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{
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return mLength == rhs.mLength && !memcmp(mStr, rhs.mStr, mLength);
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}
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ConstString& rtrimZero()
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{
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for (; mLength && mStr[mLength - 1] == '\0'; mLength--)
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{
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}
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return *this;
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}
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ConstString& rtrimSpaces()
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{
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for (; mLength && mStr[mLength - 1] == ' '; --mLength)
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{
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}
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return *this;
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}
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};
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} // namespace utils
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#endif // MARIADB_CONSTSTRING_H
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