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d3b3ab85 | 1 | |
2 | /* | |
528b2c61 | 3 | * $Id: StoreIOState.h,v 1.3 2003/01/23 00:37:14 robertc Exp $ |
d3b3ab85 | 4 | * |
5 | * | |
6 | * SQUID Web Proxy Cache http://www.squid-cache.org/ | |
7 | * ---------------------------------------------------------- | |
8 | * | |
9 | * Squid is the result of efforts by numerous individuals from | |
10 | * the Internet community; see the CONTRIBUTORS file for full | |
11 | * details. Many organizations have provided support for Squid's | |
12 | * development; see the SPONSORS file for full details. Squid is | |
13 | * Copyrighted (C) 2001 by the Regents of the University of | |
14 | * California; see the COPYRIGHT file for full details. Squid | |
15 | * incorporates software developed and/or copyrighted by other | |
16 | * sources; see the CREDITS file for full details. | |
17 | * | |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation; either version 2 of the License, or | |
21 | * (at your option) any later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, | |
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | * GNU General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
31 | * | |
32 | */ | |
33 | ||
34 | #ifndef SQUID_STOREIOSTATE_H | |
35 | #define SQUID_STOREIOSTATE_H | |
36 | ||
37 | #include "RefCount.h" | |
38 | class storeIOState : public RefCountable{ | |
39 | public: | |
40 | ||
41 | /* storeIOState does not get mempooled - it's children do */ | |
42 | void *operator new (size_t amount); | |
43 | void operator delete (void *address); | |
44 | void deleteSelf() const = 0; | |
45 | virtual ~storeIOState(); | |
46 | ||
47 | storeIOState(); | |
48 | ||
49 | off_t offset() const; | |
50 | ||
51 | virtual void read_(char *buf, size_t size, off_t offset, STRCB * callback, void *callback_data) = 0; | |
528b2c61 | 52 | virtual void write(char const *buf, size_t size, off_t offset, FREE * free_func) = 0; |
d3b3ab85 | 53 | virtual void close() = 0; |
54 | ||
55 | sdirno swap_dirn; | |
56 | sfileno swap_filen; | |
57 | StoreEntry *e; /* Need this so the FS layers can play god */ | |
58 | mode_t mode; | |
59 | off_t offset_; /* current on-disk offset pointer */ | |
60 | STFNCB *file_callback; /* called on delayed sfileno assignments */ | |
61 | STIOCB *callback; | |
62 | void *callback_data; | |
63 | struct { | |
64 | STRCB *callback; | |
65 | void *callback_data; | |
66 | } read; | |
67 | struct { | |
68 | unsigned int closing:1; /* debugging aid */ | |
69 | } flags; | |
70 | }; | |
71 | ||
72 | class StoreIOState { | |
640e4b96 | 73 | public: |
d3b3ab85 | 74 | typedef RefCount<storeIOState> Pointer; |
75 | }; | |
76 | ||
77 | #endif /* SQUID_STOREIOSTATE_H */ |