port.hh (5314:e902f12a3af1) port.hh (5476:758c2413765a)
1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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68 * have to be created.
69 *
70 * Recv accesor functions are being called from the peer interface.
71 * Send accessor functions are being called from the device the port is
72 * associated with, and it will call the peer recv. accessor function.
73 */
74class Port
75{
1/*
2 * Copyright (c) 2002-2005 The Regents of The University of Michigan
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are
7 * met: redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer;

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68 * have to be created.
69 *
70 * Recv accesor functions are being called from the peer interface.
71 * Send accessor functions are being called from the device the port is
72 * associated with, and it will call the peer recv. accessor function.
73 */
74class Port
75{
76 private:
77
76 protected:
78 /** Descriptive name (for DPRINTF output) */
79 mutable std::string portName;
80
81 /** A pointer to the peer port. Ports always come in pairs, that way they
82 can use a standardized interface to communicate between different
83 memory objects. */
84 Port *peer;
85

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98 * @param _owner Pointer to the MemObject that owns this port.
99 * Will not necessarily be set.
100 */
101 Port(const std::string &_name, MemObject *_owner = NULL);
102
103 /** Return port name (for DPRINTF). */
104 const std::string &name() const { return portName; }
105
77 /** Descriptive name (for DPRINTF output) */
78 mutable std::string portName;
79
80 /** A pointer to the peer port. Ports always come in pairs, that way they
81 can use a standardized interface to communicate between different
82 memory objects. */
83 Port *peer;
84

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97 * @param _owner Pointer to the MemObject that owns this port.
98 * Will not necessarily be set.
99 */
100 Port(const std::string &_name, MemObject *_owner = NULL);
101
102 /** Return port name (for DPRINTF). */
103 const std::string &name() const { return portName; }
104
106 virtual ~Port() {};
105 virtual ~Port();
107
108 // mey be better to use subclasses & RTTI?
109 /** Holds the ports status. Currently just that a range recomputation needs
110 * to be done. */
111 enum Status {
112 RangeChange
113 };
114

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126
127 /** Function to return the owner of this port. */
128 MemObject *getOwner() { return owner; }
129
130 /** Inform the peer port to delete itself and notify it's owner about it's
131 * demise. */
132 void removeConn();
133
106
107 // mey be better to use subclasses & RTTI?
108 /** Holds the ports status. Currently just that a range recomputation needs
109 * to be done. */
110 enum Status {
111 RangeChange
112 };
113

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125
126 /** Function to return the owner of this port. */
127 MemObject *getOwner() { return owner; }
128
129 /** Inform the peer port to delete itself and notify it's owner about it's
130 * demise. */
131 void removeConn();
132
134 virtual bool isDefaultPort() { return false; }
133 virtual bool isDefaultPort() const { return false; }
135
134
135 bool isConnected() { return peer && !peer->isDefaultPort(); }
136
136 protected:
137
138 /** These functions are protected because they should only be
139 * called by a peer port, never directly by any outside object. */
140
141 /** Called to recive a timing call from the peer port. */
142 virtual bool recvTiming(PacketPtr pkt) = 0;
143

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138
139 /** These functions are protected because they should only be
140 * called by a peer port, never directly by any outside object. */
141
142 /** Called to recive a timing call from the peer port. */
143 virtual bool recvTiming(PacketPtr pkt) = 0;
144

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