This repository has been archived by the owner on Jan 25, 2023. It is now read-only.
forked from weidai11/cryptopp
-
Notifications
You must be signed in to change notification settings - Fork 1
/
channels.h
142 lines (111 loc) · 4.5 KB
/
channels.h
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
// channels.h - originally written and placed in the public domain by Wei Dai
/// \file channels.h
/// \brief Classes for multiple named channels
#ifndef CRYPTOPP_CHANNELS_H
#define CRYPTOPP_CHANNELS_H
#include "cryptlib.h"
#include "simple.h"
#include "smartptr.h"
#include "stdcpp.h"
#if CRYPTOPP_MSC_VERSION
# pragma warning(push)
# pragma warning(disable: 4355)
#endif
NAMESPACE_BEGIN(CryptoPP)
#if 0
/// Route input on default channel to different and/or multiple channels based on message sequence number
class MessageSwitch : public Sink
{
public:
void AddDefaultRoute(BufferedTransformation &destination, const std::string &channel);
void AddRoute(unsigned int begin, unsigned int end, BufferedTransformation &destination, const std::string &channel);
void Put(byte inByte);
void Put(const byte *inString, unsigned int length);
void Flush(bool completeFlush, int propagation=-1);
void MessageEnd(int propagation=-1);
void PutMessageEnd(const byte *inString, unsigned int length, int propagation=-1);
void MessageSeriesEnd(int propagation=-1);
private:
typedef std::pair<BufferedTransformation *, std::string> Route;
struct RangeRoute
{
RangeRoute(unsigned int begin, unsigned int end, const Route &route)
: begin(begin), end(end), route(route) {}
bool operator<(const RangeRoute &rhs) const {return begin < rhs.begin;}
unsigned int begin, end;
Route route;
};
typedef std::list<RangeRoute> RouteList;
typedef std::list<Route> DefaultRouteList;
RouteList m_routes;
DefaultRouteList m_defaultRoutes;
unsigned int m_nCurrentMessage;
};
#endif
class ChannelSwitchTypedefs
{
public:
typedef std::pair<BufferedTransformation *, std::string> Route;
typedef std::multimap<std::string, Route> RouteMap;
typedef std::pair<BufferedTransformation *, value_ptr<std::string> > DefaultRoute;
typedef std::list<DefaultRoute> DefaultRouteList;
// SunCC workaround: can't use const_iterator here
typedef RouteMap::iterator MapIterator;
typedef DefaultRouteList::iterator ListIterator;
};
class ChannelSwitch;
class ChannelRouteIterator : public ChannelSwitchTypedefs
{
public:
ChannelRouteIterator(ChannelSwitch &cs) : m_cs(cs), m_useDefault(false) {}
void Reset(const std::string &channel);
bool End() const;
void Next();
BufferedTransformation & Destination();
const std::string & Channel();
ChannelSwitch& m_cs;
std::string m_channel;
bool m_useDefault;
MapIterator m_itMapCurrent, m_itMapEnd;
ListIterator m_itListCurrent, m_itListEnd;
protected:
// Hide this to see if we break something...
ChannelRouteIterator();
};
/// Route input to different and/or multiple channels based on channel ID
class CRYPTOPP_DLL ChannelSwitch : public Multichannel<Sink>, public ChannelSwitchTypedefs
{
public:
ChannelSwitch() : m_it(*this), m_blocked(false) {}
ChannelSwitch(BufferedTransformation &destination) : m_it(*this), m_blocked(false)
{
AddDefaultRoute(destination);
}
ChannelSwitch(BufferedTransformation &destination, const std::string &outChannel) : m_it(*this), m_blocked(false)
{
AddDefaultRoute(destination, outChannel);
}
void IsolatedInitialize(const NameValuePairs ¶meters=g_nullNameValuePairs);
size_t ChannelPut2(const std::string &channel, const byte *begin, size_t length, int messageEnd, bool blocking);
size_t ChannelPutModifiable2(const std::string &channel, byte *begin, size_t length, int messageEnd, bool blocking);
bool ChannelFlush(const std::string &channel, bool completeFlush, int propagation=-1, bool blocking=true);
bool ChannelMessageSeriesEnd(const std::string &channel, int propagation=-1, bool blocking=true);
byte * ChannelCreatePutSpace(const std::string &channel, size_t &size);
void AddDefaultRoute(BufferedTransformation &destination);
void RemoveDefaultRoute(BufferedTransformation &destination);
void AddDefaultRoute(BufferedTransformation &destination, const std::string &outChannel);
void RemoveDefaultRoute(BufferedTransformation &destination, const std::string &outChannel);
void AddRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel);
void RemoveRoute(const std::string &inChannel, BufferedTransformation &destination, const std::string &outChannel);
private:
RouteMap m_routeMap;
DefaultRouteList m_defaultRoutes;
ChannelRouteIterator m_it;
bool m_blocked;
friend class ChannelRouteIterator;
};
NAMESPACE_END
#if CRYPTOPP_MSC_VERSION
# pragma warning(pop)
#endif
#endif