SQLiteFileSystem.cpp   [plain text]

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#include "config.h"
#include "SQLiteFileSystem.h"

#include "FileSystem.h"
#include "SQLiteDatabase.h"
#include "SQLiteStatement.h"
#include <sqlite3.h>

#if PLATFORM(IOS_FAMILY)
#include <pal/spi/ios/SQLite3SPI.h>
#endif

namespace WebCore {

SQLiteFileSystem::SQLiteFileSystem()
{
}

int SQLiteFileSystem::openDatabase(const String& filename, sqlite3** database, bool)
{
    return sqlite3_open_v2(FileSystem::fileSystemRepresentation(filename).data(), database, SQLITE_OPEN_READWRITE | SQLITE_OPEN_CREATE | SQLITE_OPEN_AUTOPROXY, nullptr);
}

String SQLiteFileSystem::appendDatabaseFileNameToPath(const String& path, const String& fileName)
{
    return FileSystem::pathByAppendingComponent(path, fileName);
}

bool SQLiteFileSystem::ensureDatabaseDirectoryExists(const String& path)
{
    if (path.isEmpty())
        return false;
    return FileSystem::makeAllDirectories(path);
}

bool SQLiteFileSystem::ensureDatabaseFileExists(const String& fileName, bool checkPathOnly)
{
    if (fileName.isEmpty())
        return false;

    if (checkPathOnly) {
        String dir = FileSystem::directoryName(fileName);
        return ensureDatabaseDirectoryExists(dir);
    }

    return FileSystem::fileExists(fileName);
}

bool SQLiteFileSystem::deleteEmptyDatabaseDirectory(const String& path)
{
    return FileSystem::deleteEmptyDirectory(path);
}

bool SQLiteFileSystem::deleteDatabaseFile(const String& fileName)
{
    String walFileName = makeString(fileName, "-wal"_s);
    String shmFileName = makeString(fileName, "-shm"_s);

    // Try to delete all three files whether or not they are there.
    FileSystem::deleteFile(fileName);
    FileSystem::deleteFile(walFileName);
    FileSystem::deleteFile(shmFileName);

    // If any of the wal or shm files remain after the delete attempt, the overall delete operation failed.
    return !FileSystem::fileExists(fileName) && !FileSystem::fileExists(walFileName) && !FileSystem::fileExists(shmFileName);
}

#if PLATFORM(IOS_FAMILY)
bool SQLiteFileSystem::truncateDatabaseFile(sqlite3* database)
{
    return sqlite3_file_control(database, 0, SQLITE_TRUNCATE_DATABASE, 0) == SQLITE_OK;
}
#endif
    
long long SQLiteFileSystem::getDatabaseFileSize(const String& fileName)
{        
    long long size;
    return FileSystem::getFileSize(fileName, size) ? size : 0;
}

Optional<WallTime> SQLiteFileSystem::databaseCreationTime(const String& fileName)
{
    return FileSystem::getFileCreationTime(fileName);
}

Optional<WallTime> SQLiteFileSystem::databaseModificationTime(const String& fileName)
{
    return FileSystem::getFileModificationTime(fileName);
}

} // namespace WebCore