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2 | /* | |
3 | * $Id: CommRead.h,v 1.1 2003/03/04 02:57:50 robertc Exp $ | |
4 | * | |
5 | * DEBUG: section 5 Comms | |
6 | * AUTHOR: Robert Collins <robertc@squid-cache.org> | |
7 | * | |
8 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
9 | * ---------------------------------------------------------- | |
10 | * | |
11 | * Squid is the result of efforts by numerous individuals from | |
12 | * the Internet community; see the CONTRIBUTORS file for full | |
13 | * details. Many organizations have provided support for Squid's | |
14 | * development; see the SPONSORS file for full details. Squid is | |
15 | * Copyrighted (C) 2001 by the Regents of the University of | |
16 | * California; see the COPYRIGHT file for full details. Squid | |
17 | * incorporates software developed and/or copyrighted by other | |
18 | * sources; see the CREDITS file for full details. | |
19 | * | |
20 | * This program is free software; you can redistribute it and/or modify | |
21 | * it under the terms of the GNU General Public License as published by | |
22 | * the Free Software Foundation; either version 2 of the License, or | |
23 | * (at your option) any later version. | |
24 | * | |
25 | * This program is distributed in the hope that it will be useful, | |
26 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
27 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
28 | * GNU General Public License for more details. | |
29 | * | |
30 | * You should have received a copy of the GNU General Public License | |
31 | * along with this program; if not, write to the Free Software | |
32 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
33 | * | |
34 | * | |
35 | * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org> | |
36 | */ | |
37 | ||
38 | #include "config.h" | |
39 | ||
40 | #ifndef COMMREAD_H | |
41 | #define COMMREAD_H | |
42 | ||
43 | #include "squid.h" | |
44 | #include "List.h" | |
45 | ||
46 | class CommRead | |
47 | { | |
48 | ||
49 | public: | |
50 | CommRead (); | |
51 | CommRead (int fd, char *buf, int len, IOCB *handler, void *data); | |
52 | int fd; | |
53 | char *buf; | |
54 | int len; | |
55 | IOCB *handler; | |
56 | void *data; | |
57 | }; | |
58 | ||
59 | class DeferredRead | |
60 | { | |
61 | ||
62 | public: | |
63 | typedef void DeferrableRead(void *context, CommRead const &); | |
64 | void * operator new(size_t); | |
65 | void operator delete (void *); | |
66 | DeferredRead (); | |
67 | DeferredRead (DeferrableRead *, void *, CommRead const &); | |
68 | void markCancelled(); | |
69 | DeferrableRead *theReader; | |
70 | void *theContext; | |
71 | CommRead theRead; | |
72 | bool cancelled; | |
73 | ||
74 | private: | |
75 | CBDATA_CLASS(DeferredRead); | |
76 | }; | |
77 | ||
78 | class DeferredReadManager | |
79 | { | |
80 | ||
81 | public: | |
82 | ~DeferredReadManager(); | |
83 | void delayRead(DeferredRead const &); | |
84 | void kickReads(int const count); | |
85 | ||
86 | private: | |
87 | static PF CloseHandler; | |
88 | static DeferredRead popHead(ListContainer<DeferredRead> &deferredReads); | |
89 | void kickARead(DeferredRead const &); | |
90 | void flushReads(); | |
91 | ListContainer<DeferredRead> deferredReads; | |
92 | }; | |
93 | ||
94 | ||
95 | #endif /* COMMREAD_H */ |