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* update copyright * fix css parsing * fix block name search * add matching text highlighing for find results * add calculation of block statistics for selected area * new action: right-click on a block on "Diagram" selects region using left and right bounds of this block * other optimizations
308 lines
9.9 KiB
C++
308 lines
9.9 KiB
C++
/************************************************************************
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* file name : hashed_str.h
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* ----------------- :
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* creation time : 2016/09/11
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* author : Victor Zarubkin
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* email : v.s.zarubkin@gmail.com
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* ----------------- :
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* description : The file contains definition of C-strings with calculated hash-code.
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* : These strings may be used as optimized keys for std::unordered_map.
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* ----------------- :
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* change log : * 2016/09/11 Victor Zarubkin: Initial commit. Moved sources from reader.cpp
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* :
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* : *
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* ----------------- :
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* license : Lightweight profiler library for c++
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* : Copyright(C) 2016-2019 Sergey Yagovtsev, Victor Zarubkin
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* :
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* : Licensed under either of
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* : * MIT license (LICENSE.MIT or http://opensource.org/licenses/MIT)
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* : * Apache License, Version 2.0, (LICENSE.APACHE or http://www.apache.org/licenses/LICENSE-2.0)
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* : at your option.
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* :
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* : The MIT License
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* :
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* : Permission is hereby granted, free of charge, to any person obtaining a copy
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* : of this software and associated documentation files (the "Software"), to deal
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* : in the Software without restriction, including without limitation the rights
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* : to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies
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* : of the Software, and to permit persons to whom the Software is furnished
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* : to do so, subject to the following conditions:
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* :
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* : The above copyright notice and this permission notice shall be included in all
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* : copies or substantial portions of the Software.
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* :
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* : THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
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* : INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR
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* : PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* : LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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* : TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE
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* : USE OR OTHER DEALINGS IN THE SOFTWARE.
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* :
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* : The Apache License, Version 2.0 (the "License")
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* :
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* : You may not use this file except in compliance with the License.
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* : 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, software
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* : distributed under the License is distributed on an "AS IS" BASIS,
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* : WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* : See the License for the specific language governing permissions and
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* : limitations under the License.
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************************************************************************/
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#ifndef EASY_PROFILER__HASHED_CSTR__H_
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#define EASY_PROFILER__HASHED_CSTR__H_
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#include <functional>
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#include <string.h>
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#include <string>
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//////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////
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namespace profiler {
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class hashed_stdstring
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{
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::std::string m_str;
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size_t m_hash;
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public:
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hashed_stdstring(const char* _str) : m_str(_str), m_hash(::std::hash<::std::string>()(m_str))
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{
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}
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hashed_stdstring(const ::std::string& _str) : m_str(_str), m_hash(::std::hash<::std::string>()(m_str))
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{
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}
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hashed_stdstring(::std::string&& _str) : m_str(::std::forward<::std::string&&>(_str)), m_hash(::std::hash<::std::string>()(m_str))
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{
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}
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hashed_stdstring(hashed_stdstring&& _other) : m_str(::std::move(_other.m_str)), m_hash(_other.m_hash)
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{
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}
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hashed_stdstring(const char* _str, size_t _hash_code) : m_str(_str), m_hash(_hash_code)
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{
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}
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hashed_stdstring(const ::std::string& _str, size_t _hash_code) : m_str(_str), m_hash(_hash_code)
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{
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}
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hashed_stdstring(::std::string&& _str, size_t _hash_code) : m_str(::std::forward<::std::string&&>(_str)), m_hash(_hash_code)
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{
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}
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hashed_stdstring(const hashed_stdstring&) = default;
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hashed_stdstring& operator = (const hashed_stdstring&) = default;
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hashed_stdstring& operator = (hashed_stdstring&& _other)
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{
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m_str = ::std::move(_other.m_str);
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m_hash = _other.m_hash;
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return *this;
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}
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inline bool operator == (const hashed_stdstring& _other) const
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{
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return m_hash == _other.m_hash && m_str == _other.m_str;
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}
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inline bool operator != (const hashed_stdstring& _other) const
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{
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return !operator == (_other);
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}
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inline size_t hcode() const
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{
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return m_hash;
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}
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inline const char* c_str() const
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{
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return m_str.c_str();
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}
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inline size_t size() const
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{
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return m_str.size();
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}
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}; // END of class hashed_stdstring.
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} // END of namespace profiler.
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namespace std {
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/** \brief Simply returns precalculated hash of a std::string. */
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template <> struct hash<::profiler::hashed_stdstring> {
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typedef ::profiler::hashed_stdstring argument_type;
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typedef size_t result_type;
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inline size_t operator () (const ::profiler::hashed_stdstring& _str) const {
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return _str.hcode();
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}
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};
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} // END of namespace std.
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#if 0 == 1 //defined(_MSC_VER)// && _MSC_VER >= 1800
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# define EASY_PROFILER_HASHED_CSTR_DEFINED
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namespace profiler {
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/** \brief Simple C-string pointer with length.
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It is used as base class for a key in std::unordered_map.
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It is used to get better performance than std::string.
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It simply stores a pointer and a length, there is no
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any memory allocation and copy.
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\warning Make sure you know what you are doing. You have to be sure that
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pointed C-string will exist until you finish using this cstring.
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\ingroup profiler
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*/
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class cstring
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{
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protected:
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const char* m_str;
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size_t m_len;
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public:
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cstring(const char* _str) : m_str(_str), m_len(strlen(_str))
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{
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}
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cstring(const char* _str, size_t _len) : m_str(_str), m_len(_len)
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{
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}
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cstring(const cstring&) = default;
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cstring& operator = (const cstring&) = default;
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inline bool operator == (const cstring& _other) const
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{
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return m_len == _other.m_len && !strncmp(m_str, _other.m_str, m_len);
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}
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inline bool operator != (const cstring& _other) const
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{
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return !operator == (_other);
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}
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inline bool operator < (const cstring& _other) const
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{
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if (m_len == _other.m_len)
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{
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return strncmp(m_str, _other.m_str, m_len) < 0;
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}
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return m_len < _other.m_len;
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}
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inline const char* c_str() const
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{
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return m_str;
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}
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inline size_t size() const
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{
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return m_len;
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}
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}; // END of class cstring.
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/** \brief cstring with precalculated hash.
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This is used to calculate hash for C-string and to cache it
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to be used in the future without recurring hash calculatoin.
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\note This class is used as a key in std::unordered_map.
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\ingroup profiler
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*/
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class hashed_cstr : public cstring
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{
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using Parent = cstring;
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size_t m_hash;
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public:
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hashed_cstr(const char* _str) : Parent(_str), m_hash(0)
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{
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m_hash = ::std::_Hash_seq((const unsigned char *)m_str, m_len);
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}
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hashed_cstr(const char* _str, size_t _hash_code) : Parent(_str), m_hash(_hash_code)
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{
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}
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hashed_cstr(const char* _str, size_t _len, size_t _hash_code) : Parent(_str, _len), m_hash(_hash_code)
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{
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}
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hashed_cstr(const hashed_cstr&) = default;
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hashed_cstr& operator = (const hashed_cstr&) = default;
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inline bool operator == (const hashed_cstr& _other) const
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{
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return m_hash == _other.m_hash && Parent::operator == (_other);
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}
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inline bool operator != (const hashed_cstr& _other) const
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{
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return !operator == (_other);
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}
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inline size_t hcode() const
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{
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return m_hash;
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}
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}; // END of class hashed_cstr.
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using string_with_hash = hashed_cstr;
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} // END of namespace profiler.
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namespace std {
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/** \brief Simply returns precalculated hash of a C-string. */
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template <> struct hash<::profiler::hashed_cstr>
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{
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using argument_type = ::profiler::hashed_cstr;
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using result_type = size_t;
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inline size_t operator () (const ::profiler::hashed_cstr& _str) const
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{
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return _str.hcode();
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}
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};
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} // END of namespace std.
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#else ////////////////////////////////////////////////////////////////////
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// TODO: Create hashed_cstr for Linux (need to use Linux version of std::_Hash_seq)
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namespace profiler {
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using string_with_hash = hashed_stdstring;
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}
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#endif
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//////////////////////////////////////////////////////////////////////////
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//////////////////////////////////////////////////////////////////////////
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#endif // EASY_PROFILER__HASHED_CSTR__H_
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