The Tor Browser / file comparison
comparison: netwerk/cache/nsDiskCache.h
netwerk/cache/nsDiskCache.h
- branch
- TOR_BUG_9701
- changeset 9
- a63d609f5ebe
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| -1:000000000000 | 0:cb8afa163db0 |
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| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- | |
| 2 * | |
| 3 * This Source Code Form is subject to the terms of the Mozilla Public | |
| 4 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 5 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 6 | |
| 7 | |
| 8 #ifndef _nsDiskCache_h_ | |
| 9 #define _nsDiskCache_h_ | |
| 10 | |
| 11 #include "nsCacheEntry.h" | |
| 12 | |
| 13 #ifdef XP_WIN | |
| 14 #include <winsock.h> // for htonl/ntohl | |
| 15 #endif | |
| 16 | |
| 17 | |
| 18 class nsDiskCache { | |
| 19 public: | |
| 20 enum { | |
| 21 kCurrentVersion = 0x00010013 // format = 16 bits major version/16 bits minor version | |
| 22 }; | |
| 23 | |
| 24 enum { kData, kMetaData }; | |
| 25 | |
| 26 // Stores the reason why the cache is corrupt. | |
| 27 // Note: I'm only listing the enum values explicitly for easy mapping when | |
| 28 // looking at telemetry data. | |
| 29 enum CorruptCacheInfo { | |
| 30 kNotCorrupt = 0, | |
| 31 kInvalidArgPointer = 1, | |
| 32 kUnexpectedError = 2, | |
| 33 kOpenCacheMapError = 3, | |
| 34 kBlockFilesShouldNotExist = 4, | |
| 35 kOutOfMemory = 5, | |
| 36 kCreateCacheSubdirectories = 6, | |
| 37 kBlockFilesShouldExist = 7, | |
| 38 kHeaderSizeNotRead = 8, | |
| 39 kHeaderIsDirty = 9, | |
| 40 kVersionMismatch = 10, | |
| 41 kRecordsIncomplete = 11, | |
| 42 kHeaderIncomplete = 12, | |
| 43 kNotEnoughToRead = 13, | |
| 44 kEntryCountIncorrect = 14, | |
| 45 kCouldNotGetBlockFileForIndex = 15, | |
| 46 kCouldNotCreateBlockFile = 16, | |
| 47 kBlockFileSizeError = 17, | |
| 48 kBlockFileBitMapWriteError = 18, | |
| 49 kBlockFileSizeLessThanBitMap = 19, | |
| 50 kBlockFileBitMapReadError = 20, | |
| 51 kBlockFileEstimatedSizeError = 21, | |
| 52 kFlushHeaderError = 22, | |
| 53 kCacheCleanFilePathError = 23, | |
| 54 kCacheCleanOpenFileError = 24, | |
| 55 kCacheCleanTimerError = 25 | |
| 56 }; | |
| 57 | |
| 58 // Parameter initval initializes internal state of hash function. Hash values are different | |
| 59 // for the same text when different initval is used. It can be any random number. | |
| 60 // | |
| 61 // It can be used for generating 64-bit hash value: | |
| 62 // (uint64_t(Hash(key, initval1)) << 32) | Hash(key, initval2) | |
| 63 // | |
| 64 // It can be also used to hash multiple strings: | |
| 65 // h = Hash(string1, 0); | |
| 66 // h = Hash(string2, h); | |
| 67 // ... | |
| 68 static PLDHashNumber Hash(const char* key, PLDHashNumber initval=0); | |
| 69 static nsresult Truncate(PRFileDesc * fd, uint32_t newEOF); | |
| 70 }; | |
| 71 | |
| 72 #endif // _nsDiskCache_h_ |
