]>
Commit | Line | Data |
---|---|---|
b9ae18aa | 1 | /* |
b9ae18aa | 2 | * |
3 | * DEBUG: section 92 Storage File System | |
4 | * AUTHOR: Robert Collins | |
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. | |
26ac0430 | 22 | * |
b9ae18aa | 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. | |
26ac0430 | 27 | * |
b9ae18aa | 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 | * Copyright (c) 2003, Robert Collins <robertc@squid-cache.org> | |
33 | */ | |
34 | ||
f7f3304a | 35 | #include "squid-old.h" |
b9ae18aa | 36 | #include "DiskIOModule.h" |
37 | ||
38 | Vector<DiskIOModule*> *DiskIOModule::_Modules = NULL; | |
39 | ||
40 | //DiskIOModule() : initialised (false) {} | |
09c5ae5a | 41 | |
b9ae18aa | 42 | DiskIOModule::DiskIOModule() |
43 | { | |
09c5ae5a AJ |
44 | /** We cannot call ModuleAdd(*this) |
45 | * here as the virtual methods are not yet available. | |
46 | * We leave that to PokeAllModules() later. | |
b9ae18aa | 47 | */ |
48 | } | |
49 | ||
50 | void | |
51 | DiskIOModule::SetupAllModules() | |
52 | { | |
09c5ae5a AJ |
53 | DiskIOModule::PokeAllModules(); |
54 | ||
b9ae18aa | 55 | for (iterator i = GetModules().begin(); i != GetModules().end(); ++i) |
56 | /* Call the FS to set up capabilities and initialize the FS driver */ | |
57 | (*i)->init(); | |
58 | } | |
59 | ||
60 | void | |
61 | DiskIOModule::ModuleAdd(DiskIOModule &instance) | |
62 | { | |
63 | iterator i = GetModules().begin(); | |
64 | ||
65 | while (i != GetModules().end()) { | |
66 | assert(strcmp((*i)->type(), instance.type()) != 0); | |
67 | ++i; | |
68 | } | |
69 | ||
70 | GetModules().push_back (&instance); | |
71 | } | |
72 | ||
73 | Vector<DiskIOModule *> const & | |
74 | DiskIOModule::Modules() | |
75 | { | |
76 | return GetModules(); | |
77 | } | |
78 | ||
79 | Vector<DiskIOModule*> & | |
80 | DiskIOModule::GetModules() | |
81 | { | |
82 | if (!_Modules) | |
83 | _Modules = new Vector<DiskIOModule *>; | |
84 | ||
85 | return *_Modules; | |
86 | } | |
87 | ||
09c5ae5a AJ |
88 | /** |
89 | * Called when a graceful shutdown is to occur | |
b9ae18aa | 90 | * of each fs module. |
91 | */ | |
92 | void | |
93 | DiskIOModule::FreeAllModules() | |
94 | { | |
95 | while (GetModules().size()) { | |
96 | DiskIOModule *fs = GetModules().back(); | |
97 | GetModules().pop_back(); | |
98 | fs->shutdown(); | |
99 | } | |
100 | } | |
101 | ||
102 | DiskIOModule * | |
103 | DiskIOModule::Find(char const *type) | |
104 | { | |
105 | for (iterator i = GetModules().begin(); i != GetModules().end(); ++i) | |
106 | if (strcasecmp(type, (*i)->type()) == 0) | |
107 | return *i; | |
108 | ||
109 | return NULL; | |
110 | } | |
62ee09ca | 111 | |
b7717b61 | 112 | DiskIOModule * |
113 | DiskIOModule::FindDefault() | |
114 | { | |
09c5ae5a | 115 | /** Best IO options are in order: */ |
b7717b61 | 116 | DiskIOModule * result; |
117 | result = Find("DiskThreads"); | |
118 | if (NULL == result) | |
119 | result = Find("DiskDaemon"); | |
120 | if (NULL == result) | |
121 | result = Find("AIO"); | |
122 | if (NULL == result) | |
123 | result = Find("Blocking"); | |
124 | return result; | |
125 | } |