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| 1 /* | |
| 2 * Copyright (C) 2009 Google Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions are | |
| 6 * met: | |
| 7 * | |
| 8 * * Redistributions of source code must retain the above copyright | |
| 9 * notice, this list of conditions and the following disclaimer. | |
| 10 * * Redistributions in binary form must reproduce the above | |
| 11 * copyright notice, this list of conditions and the following disclaimer | |
| 12 * in the documentation and/or other materials provided with the | |
| 13 * distribution. | |
| 14 * * Neither the name of Google Inc. nor the names of its | |
| 15 * contributors may be used to endorse or promote products derived from | |
| 16 * this software without specific prior written permission. | |
| 17 * | |
| 18 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 19 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 20 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 21 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 22 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 23 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 24 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 25 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 26 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 27 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 28 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 29 */ | |
| 30 | |
| 31 #ifndef SQLiteFileSystem_h | |
| 32 #define SQLiteFileSystem_h | |
| 33 | |
| 34 #include "wtf/Threading.h" | |
| 35 #include "wtf/text/WTFString.h" | |
| 36 | |
| 37 struct sqlite3; | |
| 38 | |
| 39 namespace WebCore { | |
| 40 | |
| 41 class SQLiteDatabase; | |
| 42 | |
| 43 // A class that abstracts the file system related operations required | |
| 44 // by the WebKit database code. | |
| 45 class SQLiteFileSystem { | |
| 46 public: | |
| 47 // Registers a user-defined SQLite VFS. | |
| 48 static void registerSQLiteVFS(); | |
| 49 | |
| 50 // Opens a database file. | |
| 51 // | |
| 52 // filemame - The name of the database file. | |
| 53 // database - The SQLite structure that represents the database stored | |
| 54 // in the given file. | |
| 55 // forWebSQLDatabase - True, if and only if we're opening a Web SQL Database
file. | |
| 56 // Used by Chromium to determine if the DB file needs to
be opened | |
| 57 // using a custom VFS. | |
| 58 static int openDatabase(const String& filename, sqlite3** database, bool for
WebSQLDatabase); | |
| 59 | |
| 60 // Returns the file name for a database. | |
| 61 // | |
| 62 // dbDir - The directory where all databases are stored. | |
| 63 // dbName - The name of the database. | |
| 64 // originIdentifier - The origin that wants to use this database. | |
| 65 // db - A database with a number generator used to create unique file names. | |
| 66 static String getFileNameForNewDatabase(const String& dbDir, const String& d
bName, | |
| 67 const String& originIdentifier, SQLi
teDatabase* db); | |
| 68 | |
| 69 // Creates an absolute file path given a directory and a file name. | |
| 70 // | |
| 71 // path - The directory. | |
| 72 // fileName - The file name. | |
| 73 static String appendDatabaseFileNameToPath(const String& path, const String&
fileName); | |
| 74 | |
| 75 // Makes sure the given directory exists, by creating all missing directorie
s | |
| 76 // on the given path. | |
| 77 // | |
| 78 // path - The directory. | |
| 79 static bool ensureDatabaseDirectoryExists(const String& path); | |
| 80 | |
| 81 // If 'checkPathOnly' is false, then this method only checks if the given fi
le exists. | |
| 82 // If 'checkPathOnly' is true, then this method makes sure all directories o
n the | |
| 83 // given path exist by creating the missing ones, and does not check if the
file | |
| 84 // itself exists. | |
| 85 // | |
| 86 // Sometimes we expect a DB file to exist; other times, we're OK with creati
ng a new | |
| 87 // DB file, but we want to make sure that the directory in which we want to
put the | |
| 88 // new DB file exists. This method covers both cases. | |
| 89 // | |
| 90 // fileName - The file name. | |
| 91 // checkPathOnly - If true, we only make sure that the given directory exist
s. | |
| 92 // If false, we only check if the file exists. | |
| 93 static bool ensureDatabaseFileExists(const String& fileName, bool checkPathO
nly); | |
| 94 | |
| 95 // Deletes an empty database directory. | |
| 96 // | |
| 97 // path - The directory. | |
| 98 static bool deleteEmptyDatabaseDirectory(const String& path); | |
| 99 | |
| 100 // Deletes a database file. | |
| 101 // | |
| 102 // fileName - The file name. | |
| 103 static bool deleteDatabaseFile(const String& fileName); | |
| 104 | |
| 105 // Returns the size of the database file. | |
| 106 // | |
| 107 // fileName - The file name. | |
| 108 static long long getDatabaseFileSize(const String& fileName); | |
| 109 | |
| 110 private: | |
| 111 // do not instantiate this class | |
| 112 SQLiteFileSystem(); | |
| 113 }; // class SQLiteFileSystem | |
| 114 | |
| 115 } // namespace WebCore | |
| 116 | |
| 117 #endif | |
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Chromium Code Reviews
Issue 25223002:
Move core/platform/sql into modules/webdatabase (Closed)
Base URL: svn://svn.chromium.org/blink/trunk