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      1 /*
      2  * Copyright (C) 2007, 2010 Apple 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
      6  * are met:
      7  * 1. Redistributions of source code must retain the above copyright
      8  *    notice, this list of conditions and the following disclaimer.
      9  * 2. Redistributions in binary form must reproduce the above copyright
     10  *    notice, this list of conditions and the following disclaimer in the
     11  *    documentation and/or other materials provided with the distribution.
     12  *
     13  * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
     14  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
     15  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     16  * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
     17  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     18  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     19  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     20  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     21  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     22  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
     23  * THE POSSIBILITY OF SUCH DAMAGE.
     24  */
     25 
     26 #import "WebDatabaseQuotaManager.h"
     27 
     28 #import "WebSecurityOriginInternal.h"
     29 #import <WebCore/DatabaseTracker.h>
     30 
     31 using namespace WebCore;
     32 
     33 @implementation WebDatabaseQuotaManager
     34 
     35 - (id)initWithOrigin:(WebSecurityOrigin *)origin
     36 {
     37     self = [super init];
     38     if (!self)
     39         return nil;
     40 
     41     _origin = origin;
     42     return self;
     43 }
     44 
     45 - (WebSecurityOrigin *)origin
     46 {
     47     return _origin;
     48 }
     49 
     50 - (unsigned long long)usage
     51 {
     52 #if ENABLE(DATABASE)
     53     return DatabaseTracker::tracker().usageForOrigin([_origin _core]);
     54 #else
     55     return 0;
     56 #endif
     57 }
     58 
     59 - (unsigned long long)quota
     60 {
     61 #if ENABLE(DATABASE)
     62     return DatabaseTracker::tracker().quotaForOrigin([_origin _core]);
     63 #else
     64     return 0;
     65 #endif
     66 }
     67 
     68 // If the quota is set to a value lower than the current usage, that quota will
     69 // "stick" but no data will be purged to meet the new quota. This will simply
     70 // prevent new data from being added to databases in that origin.
     71 - (void)setQuota:(unsigned long long)quota
     72 {
     73 #if ENABLE(DATABASE)
     74     DatabaseTracker::tracker().setQuota([_origin _core], quota);
     75 #endif
     76 }
     77 
     78 @end
     79