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58373ff8 | 1 | /* |
bbc27441 | 2 | * Copyright (C) 1996-2014 The Squid Software Foundation and contributors |
58373ff8 | 3 | * |
bbc27441 AJ |
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. | |
58373ff8 FC |
7 | */ |
8 | ||
bbc27441 AJ |
9 | /* DEBUG: section 47 Store Directory Routines */ |
10 | ||
58373ff8 FC |
11 | #include "squid.h" |
12 | ||
13 | #include "DiskIO/DiskIOStrategy.h" | |
58373ff8 | 14 | #include "UFSStoreState.h" |
602d9612 | 15 | #include "UFSStrategy.h" |
58373ff8 FC |
16 | #include "UFSSwapDir.h" |
17 | ||
18 | bool | |
19 | Fs::Ufs::UFSStrategy::shedLoad() | |
20 | { | |
21 | return io->shedLoad(); | |
22 | } | |
23 | ||
24 | int | |
25 | Fs::Ufs::UFSStrategy::load() | |
26 | { | |
27 | return io->load(); | |
28 | } | |
29 | ||
30 | Fs::Ufs::UFSStrategy::UFSStrategy (DiskIOStrategy *anIO) : io(anIO) | |
31 | {} | |
32 | ||
33 | Fs::Ufs::UFSStrategy::~UFSStrategy () | |
34 | { | |
35 | delete io; | |
36 | } | |
37 | ||
38 | StoreIOState::Pointer | |
39 | Fs::Ufs::UFSStrategy::createState(SwapDir *SD, StoreEntry *e, StoreIOState::STIOCB * aCallback, void *callback_data) const | |
40 | { | |
41 | return new Fs::Ufs::UFSStoreState (SD, e, aCallback, callback_data); | |
42 | } | |
43 | ||
44 | DiskFile::Pointer | |
45 | Fs::Ufs::UFSStrategy::newFile (char const *path) | |
46 | { | |
47 | return io->newFile(path); | |
48 | } | |
49 | ||
50 | void | |
51 | Fs::Ufs::UFSStrategy::unlinkFile(char const *path) | |
52 | { | |
53 | io->unlinkFile(path); | |
54 | } | |
55 | ||
56 | StoreIOState::Pointer | |
57 | Fs::Ufs::UFSStrategy::open(SwapDir * SD, StoreEntry * e, StoreIOState::STFNCB * file_callback, | |
187642d0 | 58 | StoreIOState::STIOCB * aCallback, void *callback_data) |
58373ff8 FC |
59 | { |
60 | assert (((UFSSwapDir *)SD)->IO == this); | |
61 | debugs(79, 3, HERE << "fileno "<< std::setfill('0') << std::hex | |
187642d0 | 62 | << std::uppercase << std::setw(8) << e->swap_filen); |
58373ff8 FC |
63 | |
64 | /* to consider: make createstate a private UFSStrategy call */ | |
65 | StoreIOState::Pointer sio = createState (SD, e, aCallback, callback_data); | |
66 | ||
67 | sio->mode |= O_RDONLY; | |
68 | ||
69 | Fs::Ufs::UFSStoreState *state = dynamic_cast <Fs::Ufs::UFSStoreState *>(sio.getRaw()); | |
70 | ||
71 | assert (state); | |
72 | ||
73 | char *path = ((UFSSwapDir *)SD)->fullPath(e->swap_filen, NULL); | |
74 | ||
75 | DiskFile::Pointer myFile = newFile (path); | |
76 | ||
77 | if (myFile.getRaw() == NULL) | |
78 | return NULL; | |
79 | ||
80 | state->theFile = myFile; | |
81 | ||
82 | state->opening = true; | |
83 | ||
84 | myFile->open (sio->mode, 0644, state); | |
85 | ||
86 | if (myFile->error()) | |
87 | return NULL; | |
88 | ||
89 | return sio; | |
90 | } | |
91 | ||
92 | StoreIOState::Pointer | |
93 | Fs::Ufs::UFSStrategy::create(SwapDir * SD, StoreEntry * e, StoreIOState::STFNCB * file_callback, | |
187642d0 | 94 | StoreIOState::STIOCB * aCallback, void *callback_data) |
58373ff8 FC |
95 | { |
96 | assert (((UFSSwapDir *)SD)->IO == this); | |
97 | /* Allocate a number */ | |
98 | sfileno filn = ((UFSSwapDir *)SD)->mapBitAllocate(); | |
99 | debugs(79, 3, HERE << "fileno "<< std::setfill('0') << | |
187642d0 | 100 | std::hex << std::uppercase << std::setw(8) << filn); |
58373ff8 FC |
101 | |
102 | /* Shouldn't we handle a 'bitmap full' error here? */ | |
103 | ||
104 | StoreIOState::Pointer sio = createState (SD, e, aCallback, callback_data); | |
105 | ||
106 | sio->mode |= O_WRONLY | O_CREAT | O_TRUNC; | |
107 | ||
108 | sio->swap_filen = filn; | |
109 | ||
110 | Fs::Ufs::UFSStoreState *state = dynamic_cast <Fs::Ufs::UFSStoreState *>(sio.getRaw()); | |
111 | ||
112 | assert (state); | |
113 | ||
114 | char *path = ((UFSSwapDir *)SD)->fullPath(filn, NULL); | |
115 | ||
116 | DiskFile::Pointer myFile = newFile (path); | |
117 | ||
118 | if (myFile.getRaw() == NULL) { | |
119 | ((UFSSwapDir *)SD)->mapBitReset (filn); | |
120 | return NULL; | |
121 | } | |
122 | ||
123 | state->theFile = myFile; | |
124 | ||
125 | state->creating = true; | |
126 | ||
127 | myFile->create (state->mode, 0644, state); | |
128 | ||
129 | if (myFile->error()) { | |
130 | ((UFSSwapDir *)SD)->mapBitReset (filn); | |
131 | return NULL; | |
132 | } | |
133 | ||
134 | /* now insert into the replacement policy */ | |
135 | ((UFSSwapDir *)SD)->replacementAdd(e); | |
136 | ||
137 | return sio; | |
138 | } | |
139 | ||
140 | int | |
141 | Fs::Ufs::UFSStrategy::callback() | |
142 | { | |
143 | return io->callback(); | |
144 | } | |
145 | ||
146 | void | |
147 | Fs::Ufs::UFSStrategy::init() | |
148 | { | |
149 | io->init(); | |
150 | } | |
151 | ||
152 | void | |
153 | Fs::Ufs::UFSStrategy::sync() | |
154 | { | |
155 | io->sync(); | |
156 | } | |
157 | ||
158 | void | |
159 | Fs::Ufs::UFSStrategy::statfs(StoreEntry & sentry)const | |
160 | { | |
161 | io->statfs(sentry); | |
162 | } | |
f53969cc | 163 |