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bbc27441 | 1 | /* |
5b74111a | 2 | * Copyright (C) 1996-2018 The Squid Software Foundation and contributors |
bbc27441 AJ |
3 | * |
4 | * Squid software is distributed under GPLv2+ license and includes | |
5 | * contributions from numerous individuals and organizations. | |
6 | * Please see the COPYING and CONTRIBUTORS files for details. | |
7 | */ | |
8 | ||
bf929433 AJ |
9 | #ifndef SQUID_SRC_AUTH_QUEUENODE_H |
10 | #define SQUID_SRC_AUTH_QUEUENODE_H | |
11 | ||
dc79fed8 | 12 | #include "auth/forward.h" |
cd44274b AJ |
13 | #include "cbdata.h" |
14 | ||
bf929433 AJ |
15 | namespace Auth |
16 | { | |
17 | ||
18 | /** | |
19 | * A queue of auth requests waiting for verification to occur. | |
20 | * | |
21 | * Certain authentication schemes such a Basic and Bearer auth | |
22 | * permit credentials tokens to be repeated from multiple sources | |
23 | * simultaneously. This queue node allows multiple validation | |
24 | * queries to be collapsed into one backend helper lookup. | |
25 | * CBDATA and handlers stored in these queue nodes can be notified | |
26 | * all at once with a result when the lookup completes. | |
27 | */ | |
28 | class QueueNode | |
29 | { | |
741c2986 | 30 | MEMPROXY_CLASS(Auth::QueueNode); |
bf929433 AJ |
31 | |
32 | private: | |
33 | // we store CBDATA here, copy is not safe | |
34 | QueueNode(const QueueNode &); | |
35 | QueueNode &operator =(const QueueNode &); | |
36 | ||
37 | public: | |
8e93b664 | 38 | QueueNode(Auth::UserRequest *aRequest, AUTHCB *aHandler, void *aData) : |
f53969cc SM |
39 | next(NULL), |
40 | auth_user_request(aRequest), | |
41 | handler(aHandler), | |
42 | data(cbdataReference(aData)) {} | |
bf929433 AJ |
43 | ~QueueNode() { |
44 | cbdataReferenceDone(data); | |
45 | while (next) { | |
46 | QueueNode *tmp = next->next; | |
47 | next->next = NULL; | |
48 | delete next; | |
49 | next = tmp; | |
50 | }; | |
51 | } | |
52 | ||
53 | Auth::QueueNode *next; | |
54 | Auth::UserRequest::Pointer auth_user_request; | |
55 | AUTHCB *handler; | |
56 | void *data; | |
bf929433 AJ |
57 | }; |
58 | ||
bf929433 AJ |
59 | } // namespace Auth |
60 | ||
61 | #endif /* SQUID_SRC_AUTH_QUEUENODE_H */ | |
f53969cc | 62 |