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2 | /* | |
3 | * $Id: DiskIOModule.cc,v 1.1 2004/12/20 16:30:38 robertc Exp $ | |
4 | * | |
5 | * DEBUG: section 92 Storage File System | |
6 | * AUTHOR: Robert Collins | |
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 | * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org> | |
35 | */ | |
36 | ||
37 | #include "squid.h" | |
38 | #include "DiskIOModule.h" | |
39 | ||
40 | Vector<DiskIOModule*> *DiskIOModule::_Modules = NULL; | |
41 | ||
42 | //DiskIOModule() : initialised (false) {} | |
43 | DiskIOModule::DiskIOModule() | |
44 | { | |
45 | /* We cannot call | |
46 | * ModuleAdd(*this); | |
47 | * here as the virtual methods are not yet available | |
48 | */ | |
49 | } | |
50 | ||
51 | void | |
52 | DiskIOModule::SetupAllModules() | |
53 | { | |
54 | for (iterator i = GetModules().begin(); i != GetModules().end(); ++i) | |
55 | /* Call the FS to set up capabilities and initialize the FS driver */ | |
56 | (*i)->init(); | |
57 | } | |
58 | ||
59 | void | |
60 | DiskIOModule::ModuleAdd(DiskIOModule &instance) | |
61 | { | |
62 | iterator i = GetModules().begin(); | |
63 | ||
64 | while (i != GetModules().end()) { | |
65 | assert(strcmp((*i)->type(), instance.type()) != 0); | |
66 | ++i; | |
67 | } | |
68 | ||
69 | GetModules().push_back (&instance); | |
70 | } | |
71 | ||
72 | Vector<DiskIOModule *> const & | |
73 | DiskIOModule::Modules() | |
74 | { | |
75 | return GetModules(); | |
76 | } | |
77 | ||
78 | Vector<DiskIOModule*> & | |
79 | DiskIOModule::GetModules() | |
80 | { | |
81 | if (!_Modules) | |
82 | _Modules = new Vector<DiskIOModule *>; | |
83 | ||
84 | return *_Modules; | |
85 | } | |
86 | ||
87 | /* | |
88 | * called when a graceful shutdown is to occur | |
89 | * of each fs module. | |
90 | */ | |
91 | void | |
92 | DiskIOModule::FreeAllModules() | |
93 | { | |
94 | while (GetModules().size()) { | |
95 | DiskIOModule *fs = GetModules().back(); | |
96 | GetModules().pop_back(); | |
97 | fs->shutdown(); | |
98 | } | |
99 | } | |
100 | ||
101 | DiskIOModule * | |
102 | DiskIOModule::Find(char const *type) | |
103 | { | |
104 | for (iterator i = GetModules().begin(); i != GetModules().end(); ++i) | |
105 | if (strcasecmp(type, (*i)->type()) == 0) | |
106 | return *i; | |
107 | ||
108 | return NULL; | |
109 | } |