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InternalPacket.h
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1 /*
2  * Original work: Copyright (c) 2014, Oculus VR, Inc.
3  * All rights reserved.
4  *
5  * This source code is licensed under the BSD-style license found in the
6  * RakNet License.txt file in the licenses directory of this source tree. An additional grant
7  * of patent rights can be found in the RakNet Patents.txt file in the same directory.
8  *
9  *
10  * Modified work: Copyright (c) 2017, SLikeSoft UG (haftungsbeschränkt)
11  *
12  * This source code was modified by SLikeSoft. Modifications are licensed under the MIT-style
13  * license found in the license.txt file in the root directory of this source tree.
14  */
15 
19 
20 #ifndef __INTERNAL_PACKET_H
21 #define __INTERNAL_PACKET_H
22 
23 #include "PacketPriority.h"
24 #include "types.h"
25 #include "memoryoverride.h"
26 #include "defines.h"
27 #include "NativeTypes.h"
28 #include "defines.h"
29 #if USE_SLIDING_WINDOW_CONGESTION_CONTROL!=1
30 #include "CCRakNetUDT.h"
31 #else
32 #include "CCRakNetSlidingWindow.h"
33 #endif
34 
35 namespace SLNet {
36 
37 typedef uint16_t SplitPacketIdType;
38 typedef uint32_t SplitPacketIndexType;
39 
42 typedef uint24_t MessageNumberType;
43 
46 typedef MessageNumberType OrderingIndexType;
47 
48 typedef SLNet::TimeUS RemoteSystemTimeType;
49 
50 struct InternalPacketFixedSizeTransmissionHeader
51 {
53  MessageNumberType reliableMessageNumber;
55  OrderingIndexType orderingIndex;
56  // Used only with sequenced messages
57  OrderingIndexType sequencingIndex;
59  unsigned char orderingChannel;
61  SplitPacketIdType splitPacketId;
63  SplitPacketIndexType splitPacketIndex;
65  SplitPacketIndexType splitPacketCount;;
67  BitSize_t dataBitLength;
69  PacketReliability reliability;
70  // Not endian safe
71  // unsigned char priority : 3;
72  // unsigned char reliability : 5;
73 };
74 
76 struct InternalPacketRefCountedData
77 {
78  unsigned char *sharedDataBlock;
79  unsigned int refCount;
80 };
81 
84 struct InternalPacket : public InternalPacketFixedSizeTransmissionHeader
85 {
87  MessageNumberType messageInternalOrder;
91  bool messageNumberAssigned;
93 // bool allowWindowUpdate;
95  SLNet::TimeUS creationTime;
97  SLNet::TimeUS nextActionTime;
98  // For debugging
99  SLNet::TimeUS retransmissionTime;
100  // Size of the header when encoded into a bitstream
101  BitSize_t headerLength;
103  unsigned char *data;
105  enum AllocationScheme
106  {
108  NORMAL,
109 
111  REF_COUNTED,
112 
115  STACK
116  } allocationScheme;
117  InternalPacketRefCountedData *refCountedData;
119  unsigned char timesSent;
121  PacketPriority priority;
123  uint32_t sendReceiptSerial;
124 
125  // Used for the resend queue
126  // Linked list implementation so I can remove from the list via a pointer, without finding it in the list
127  InternalPacket *resendPrev, *resendNext,*unreliablePrev,*unreliableNext;
128 
129  unsigned char stackData[128];
130 };
131 
132 } // namespace SLNet
133 
134 #endif
135