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shellext: new Dirstatecache.h and cpp

Changeset 0682d7ac9234…

Parent 6c05aa69d95b…

by Adrian Buehlmann

Changes to 4 files · Browse files at 0682d7ac9234 Showing diff from parent 6c05aa69d95b Diff from another changeset...

Change 1 of 1 Show Entire File tortoise/​shellext/​Dirstatecache.cpp Stacked
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ +// Copyright (C) 2009 Benjamin Pollack +// Copyright (C) 2009 Adrian Buehlmann +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 2 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. + +#include "stdafx.h" + +#include "Dirstatecache.h" +#include "dirstate.h" +#include "Winstat.h" + +#include <list> + + +Dirstate* Dirstatecache::get(const std::string& hgroot) +{ + typedef std::list<E>::iterator Iter; + + static std::list<Dirstatecache::E> _cache; + + Iter iter = _cache.begin(); + + for (;iter != _cache.end(); ++iter) + { + if (hgroot == iter->hgroot) + break; + } + + bool isnew = false; + + if (iter == _cache.end()) + { + if (_cache.size() >= 10) + { + TDEBUG_TRACE("Dirstatecache::get: dropping " << _cache.back().hgroot); + delete _cache.back().dstate; + _cache.back().dstate = 0; + _cache.pop_back(); + } + E e; + e.hgroot = hgroot; + _cache.push_front(e); + iter = _cache.begin(); + isnew = true; + } + + unsigned tc = GetTickCount(); + + std::string path = hgroot + "\\.hg\\dirstate"; + + Winstat stat; + + bool stat_done = false; + + if (isnew || (tc - iter->tickcount) > 500) + { + if (0 != stat.lstat(path.c_str())) + { + TDEBUG_TRACE("Dirstatecache::get: lstat(" << path <<") failed"); + return 0; + } + iter->tickcount = tc; + stat_done = true; + TDEBUG_TRACE("Dirstatecache::get: lstat(" << path <<") ok "); + } + + if (stat_done && iter->dstate_mtime < stat.mtime) + { + iter->dstate_mtime = stat.mtime; + if (iter->dstate) { + delete iter->dstate; + iter->dstate = 0; + TDEBUG_TRACE("Dirstatecache::get: refreshing " << hgroot); + } else { + TDEBUG_TRACE("Dirstatecache::get: reading " << hgroot); + } + unsigned tc0 = GetTickCount(); + iter->dstate = Dirstate::read(path).release(); + unsigned tc1 = GetTickCount(); + unsigned delta = tc1 - tc0; + TDEBUG_TRACE("Dirstatecache::get: read done in " << delta << " ticks, " + << _cache.size() << " repos in cache"); + } + + return iter->dstate; +}
Change 1 of 1 Show Entire File tortoise/​shellext/​Dirstatecache.h Stacked
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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+ +// Copyright (C) 2009 Benjamin Pollack +// Copyright (C) 2009 Adrian Buehlmann +// +// This program is free software: you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation, either version 2 of the License, or +// (at your option) any later version. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License +// along with this program. If not, see <http://www.gnu.org/licenses/>. + +#ifndef _DIRSTATECACHE_H +#define _DIRSTATECACHE_H + +#include <string> + +class Dirstate; + +class Dirstatecache +{ + struct E + { + Dirstate* dstate; + __time64_t dstate_mtime; + + std::string hgroot; + unsigned tickcount; + + E(): dstate(0), dstate_mtime(0), tickcount(0) {} + }; + +public: + static Dirstate* get(const std::string& hgroot); +}; + +#endif
Change 1 of 1 Show Entire File tortoise/​shellext/​Makefile Stacked
 
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  ShellUtils2.o \   StringUtils.o \   dirstate.o \ + Dirstatecache.o \   QueryDirstate.o    BASE_LDFLAGS=-lole32 -lkernel32 -luser32 -lgdi32 -lshlwapi -lwininet \
Change 1 of 1 Show Entire File tortoise/​shellext/​QueryDirstate.cpp Stacked
 
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 #include "QueryDirstate.h"  #include "dirstate.h"  #include "DirectoryStatus.h" +#include "Dirstatecache.h"  #include "TortoiseUtils.h"  #include "Winstat.h"    #include <shlwapi.h>   -#include <vector> -#include <list> - - -#define HASH_LENGTH 20 - - -class Dirstatecache -{ - struct E - { - Dirstate* dstate; - __time64_t dstate_mtime; - - std::string hgroot; - unsigned tickcount; - - E(): dstate(0), dstate_mtime(0), tickcount(0) {} - }; - -public: - static Dirstate* get(const std::string& hgroot); -}; - - -Dirstate* Dirstatecache::get(const std::string& hgroot) -{ - typedef std::list<E>::iterator Iter; - - static std::list<Dirstatecache::E> _cache; - - Iter iter = _cache.begin(); - - for (;iter != _cache.end(); ++iter) - { - if (hgroot == iter->hgroot) - break; - } - - bool isnew = false; - - if (iter == _cache.end()) - { - if (_cache.size() >= 10) - { - TDEBUG_TRACE("Dirstatecache::get: dropping " << _cache.back().hgroot); - delete _cache.back().dstate; - _cache.back().dstate = 0; - _cache.pop_back(); - } - E e; - e.hgroot = hgroot; - _cache.push_front(e); - iter = _cache.begin(); - isnew = true; - } - - unsigned tc = GetTickCount(); - - std::string path = hgroot + "\\.hg\\dirstate"; - - Winstat stat; - - bool stat_done = false; - - if (isnew || (tc - iter->tickcount) > 500) - { - if (0 != stat.lstat(path.c_str())) - { - TDEBUG_TRACE("Dirstatecache::get: lstat(" << path <<") failed"); - return 0; - } - iter->tickcount = tc; - stat_done = true; - TDEBUG_TRACE("Dirstatecache::get: lstat(" << path <<") ok "); - } - - if (stat_done && iter->dstate_mtime < stat.mtime) - { - iter->dstate_mtime = stat.mtime; - if (iter->dstate) { - delete iter->dstate; - iter->dstate = 0; - TDEBUG_TRACE("Dirstatecache::get: refreshing " << hgroot); - } else { - TDEBUG_TRACE("Dirstatecache::get: reading " << hgroot); - } - unsigned tc0 = GetTickCount(); - iter->dstate = Dirstate::read(path).release(); - unsigned tc1 = GetTickCount(); - unsigned delta = tc1 - tc0; - TDEBUG_TRACE("Dirstatecache::get: read done in " << delta << " ticks, " - << _cache.size() << " repos in cache"); - } - - return iter->dstate; -} -    int HgQueryDirstate(   const std::string& path, const char& filterStatus, char& outStatus)