[10552] | 1 | /* |
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| 2 | * ORXONOX - the hottest 3D action shooter ever to exist |
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| 3 | * > www.orxonox.net < |
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| 4 | * |
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| 5 | * |
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| 6 | * License notice: |
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| 7 | * |
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| 8 | * This program is free software; you can redistribute it and/or |
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| 9 | * modify it under the terms of the GNU General Public License |
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| 10 | * as published by the Free Software Foundation; either version 2 |
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| 11 | * of the License, or (at your option) any later version. |
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| 12 | * |
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| 13 | * This program is distributed in the hope that it will be useful, |
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| 14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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| 15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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| 16 | * GNU General Public License for more details. |
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| 17 | * |
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| 18 | * You should have received a copy of the GNU General Public License |
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| 19 | * along with this program; if not, write to the Free Software |
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| 20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. |
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| 21 | * |
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| 22 | * Author: |
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| 23 | * Fabian 'x3n' Landau |
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| 24 | * Co-authors: |
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| 25 | * ... |
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| 26 | * |
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| 27 | */ |
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| 28 | |
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| 29 | #include "Plugin.h" |
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| 30 | |
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| 31 | #include "ModuleInstance.h" |
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| 32 | #include "util/Output.h" |
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| 33 | #include "core/Core.h" |
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| 34 | |
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| 35 | namespace orxonox |
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| 36 | { |
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| 37 | Plugin::Plugin(const std::string& name, const std::string& libraryName) : name_(name), libraryName_(libraryName) |
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| 38 | { |
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| 39 | this->referenceCounter_ = 0; |
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| 40 | this->moduleInstance_ = NULL; |
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| 41 | } |
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| 42 | |
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| 43 | Plugin::~Plugin() |
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| 44 | { |
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| 45 | if (this->moduleInstance_ != NULL) |
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| 46 | { |
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| 47 | this->referenceCounter_ = 1; // force unloading |
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| 48 | this->unload(); |
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| 49 | } |
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| 50 | } |
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| 51 | |
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| 52 | void Plugin::load() |
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| 53 | { |
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[10553] | 54 | this->referenceCounter_++; |
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| 55 | if (this->referenceCounter_ == 1) // increased from 0 to 1 -> load plugin |
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[10552] | 56 | { |
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| 57 | orxout(internal_info) << "Loading plugin " << this->name_ << "..." << endl; |
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| 58 | this->moduleInstance_ = new ModuleInstance(this->libraryName_); |
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| 59 | Core::getInstance().loadModule(this->moduleInstance_); |
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| 60 | } |
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| 61 | else |
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[10553] | 62 | orxout(internal_info) << "Increased reference count for plugin " << this->name_ << " to " << this->referenceCounter_ << endl; |
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[10552] | 63 | } |
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| 64 | |
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| 65 | void Plugin::unload() |
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| 66 | { |
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| 67 | if (this->referenceCounter_ == 0) |
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| 68 | { |
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[10553] | 69 | orxout(internal_warning) << "Tried to dereference plugin " << this->name_ << " more often than it was referenced" << endl; |
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| 70 | return; |
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| 71 | } |
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| 72 | |
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| 73 | this->referenceCounter_--; |
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| 74 | if (this->referenceCounter_ == 0) // reduced from 1 to 0 -> load plugin |
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| 75 | { |
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[10552] | 76 | orxout(internal_info) << "Unloading plugin " << this->name_ << "..." << endl; |
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| 77 | Core::getInstance().unloadModule(this->moduleInstance_); |
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| 78 | delete this->moduleInstance_; |
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| 79 | this->moduleInstance_ = NULL; |
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| 80 | } |
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| 81 | else |
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[10553] | 82 | orxout(internal_info) << "Reduced reference count for plugin " << this->name_ << " to " << this->referenceCounter_ << endl; |
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[10552] | 83 | } |
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| 84 | } |
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