diff options
Diffstat (limited to 'engines/wintermute/debugger/listing_providers/cached_source_listing_provider.cpp')
-rw-r--r-- | engines/wintermute/debugger/listing_providers/cached_source_listing_provider.cpp | 80 |
1 files changed, 80 insertions, 0 deletions
diff --git a/engines/wintermute/debugger/listing_providers/cached_source_listing_provider.cpp b/engines/wintermute/debugger/listing_providers/cached_source_listing_provider.cpp new file mode 100644 index 0000000000..20fe708380 --- /dev/null +++ b/engines/wintermute/debugger/listing_providers/cached_source_listing_provider.cpp @@ -0,0 +1,80 @@ +/* ScummVM - Graphic Adventure Engine + * + * ScummVM is the legal property of its developers, whose names + * are too numerous to list here. Please refer to the COPYRIGHT + * file distributed with this source distribution. + * + * 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, write to the Free Software + * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. + * + */ + +#include "cached_source_listing_provider.h" +#include "basic_source_listing_provider.h" +#include "blank_listing_provider.h" +#include "source_listing.h" + +namespace Wintermute { + +CachedSourceListingProvider::CachedSourceListingProvider() { + _sourceListingProvider = new BasicSourceListingProvider(); + _fallbackListingProvider = new BlankListingProvider(); +} + +CachedSourceListingProvider::~CachedSourceListingProvider() { + delete _sourceListingProvider; + delete _fallbackListingProvider; + for (Common::HashMap<Common::String, SourceListing*>::iterator it = _cached.begin(); + it != _cached.end(); it++) { + delete (it->_value); + } +} + +Listing *CachedSourceListingProvider::getListing(const Common::String &filename, Wintermute::ErrorCode &error) { + if (_cached.contains(filename)) { + error = OK; + SourceListing *copy = new SourceListing(*_cached.getVal(filename)); + return copy; + } else { + ErrorCode inner; + SourceListing *res = _sourceListingProvider->getListing(filename, inner); + if (inner == OK) { + SourceListing *copy = new SourceListing(*res); + _cached.setVal(filename, copy); // The cached copy is deleted on destruction + return res; + } else { + delete res; + return _fallbackListingProvider->getListing(filename, error); + } + } +} + +void CachedSourceListingProvider::invalidateCache() { + for (Common::HashMap<Common::String, SourceListing*>::iterator it = _cached.begin(); + it != _cached.end(); it++) { + delete (it->_value); + } + _cached.clear(); +} + +ErrorCode CachedSourceListingProvider::setPath(const Common::String &path) { + invalidateCache(); + return _sourceListingProvider->setPath(path); +} + +Common::String CachedSourceListingProvider::getPath() const { + return _sourceListingProvider->getPath(); +} + +} // End of namespace Wintermute |