115 lines
2.7 KiB
C
115 lines
2.7 KiB
C
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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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* @file clientBase.h
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* @author jason
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* @date 2000-08-04
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*/
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#ifndef CLIENTBASE_H
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#define CLIENTBASE_H
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#include "pandabase.h"
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#include "clientDevice.h"
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#include "typedReferenceCount.h"
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#include "luse.h"
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#include "vector_string.h"
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#include "vector_int.h"
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#include "clockObject.h"
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#include "pointerTo.h"
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#include "coordinateSystem.h"
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#ifdef OLD_HAVE_IPC
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#include <ipc_thread.h>
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#endif
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#include "pmap.h"
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/**
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* An abstract base class for a family of client device interfaces--including
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* trackers, buttons, dials, and other analog inputs.
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*
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* This provides a common interface to connect to such devices and extract
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* their data; it is used by TrackerNode etc. to put these devices in the
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* data graph.
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*/
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class EXPCL_PANDA_DEVICE ClientBase : public TypedReferenceCount {
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protected:
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ClientBase();
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PUBLISHED:
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~ClientBase();
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bool fork_asynchronous_thread(double poll_time);
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INLINE bool is_forked() const;
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INLINE bool poll();
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INLINE double get_last_poll_time() const;
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INLINE void set_coordinate_system(CoordinateSystem cs);
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INLINE CoordinateSystem get_coordinate_system() const;
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public:
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PT(ClientDevice) get_device(TypeHandle device_type,
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const std::string &device_name);
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protected:
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virtual PT(ClientDevice) make_device(TypeHandle device_type,
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const std::string &device_name)=0;
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virtual bool disconnect_device(TypeHandle device_type,
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const std::string &device_name,
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ClientDevice *device);
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virtual void do_poll();
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private:
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typedef pmap<std::string, ClientDevice *> DevicesByName;
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typedef pmap<TypeHandle, DevicesByName> Devices;
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Devices _devices;
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bool _forked;
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double _last_poll_time;
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int _last_poll_frame;
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CoordinateSystem _cs;
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#ifdef OLD_HAVE_IPC
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int _sleep_time;
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thread *_client_thread;
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bool _shutdown;
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static void* st_callback(void *arg);
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void callback();
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#endif
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public:
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static TypeHandle get_class_type() {
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return _type_handle;
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}
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static void init_type() {
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TypedReferenceCount::init_type();
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register_type(_type_handle, "ClientBase",
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TypedReferenceCount::get_class_type());
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}
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virtual TypeHandle get_type() const {
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return get_class_type();
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}
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virtual TypeHandle force_init_type() {init_type(); return get_class_type();}
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private:
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static TypeHandle _type_handle;
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friend class ClientDevice;
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};
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#include "clientBase.I"
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#endif
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