127 lines
3.5 KiB
C++
127 lines
3.5 KiB
C++
// Filename: p3dInstanceManager.h
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// Created by: drose (29May09)
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//
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////////////////////////////////////////////////////////////////////
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//
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// PANDA 3D SOFTWARE
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// Copyright (c) Carnegie Mellon University. All rights reserved.
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//
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// All use of this software is subject to the terms of the revised BSD
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// license. You should have received a copy of this license along
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// with this source code in a file named "LICENSE."
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//
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////////////////////////////////////////////////////////////////////
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#ifndef P3DINSTANCEMANAGER_H
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#define P3DINSTANCEMANAGER_H
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#include "p3d_plugin_common.h"
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#include "p3dConditionVar.h"
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#include <set>
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#include <map>
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#include <vector>
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class P3DInstance;
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class P3DSession;
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class P3DPackage;
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////////////////////////////////////////////////////////////////////
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// Class : P3DInstanceManager
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// Description : This global class manages the set of instances in the
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// universe.
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////////////////////////////////////////////////////////////////////
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class P3DInstanceManager {
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private:
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P3DInstanceManager();
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~P3DInstanceManager();
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public:
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bool initialize();
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inline bool is_initialized() const;
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inline const string &get_root_dir() const;
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inline const string &get_download_url() const;
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inline const string &get_platform() const;
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P3DInstance *
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create_instance(P3D_request_ready_func *func, void *user_data);
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bool start_instance(P3DInstance *inst, const string &p3d_filename,
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const P3D_token tokens[], size_t num_tokens);
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void finish_instance(P3DInstance *inst);
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P3DInstance *validate_instance(P3D_instance *instance);
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P3DInstance *check_request();
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void wait_request();
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P3DPackage *get_package(const string &package_name,
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const string &package_version,
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const string &package_display_name);
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inline int get_num_instances() const;
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int get_unique_id();
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void signal_request_ready(P3DInstance *inst);
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P3D_class_definition *make_class_definition() const;
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inline P3D_object *new_undefined_object();
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inline P3D_object *new_none_object();
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inline P3D_object *new_bool_object(bool value);
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static P3DInstanceManager *get_global_ptr();
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static void delete_global_ptr();
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private:
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// The notify thread. This thread runs only for the purpose of
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// generating asynchronous notifications of requests, to callers who
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// ask for it.
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THREAD_CALLBACK_DECLARATION(P3DInstanceManager, nt_thread_run);
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void nt_thread_run();
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private:
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bool _is_initialized;
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string _root_dir;
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string _download_url;
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string _platform;
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P3D_object *_undefined_object;
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P3D_object *_none_object;
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P3D_object *_true_object;
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P3D_object *_false_object;
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typedef set<P3DInstance *> Instances;
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Instances _instances;
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typedef map<string, P3DSession *> Sessions;
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Sessions _sessions;
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typedef map<string, P3DPackage *> Packages;
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Packages _packages;
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int _unique_id;
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// This condition var is waited on the main thread and signaled in a
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// sub-thread when new request notices arrive.
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P3DConditionVar _request_ready;
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// We may need a thread to send async request notices to callers.
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bool _notify_thread_continue;
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bool _started_notify_thread;
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THREAD _notify_thread;
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// This queue of instances that need to send notifications is
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// protected by _notify_ready's mutex.
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typedef vector<P3DInstance *> NotifyInstances;
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NotifyInstances _notify_instances;
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P3DConditionVar _notify_ready;
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static P3DInstanceManager *_global_ptr;
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};
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#include "p3dInstanceManager.I"
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#endif
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