1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/GoogleToolboxSubset/GTMNSData+zlib.h	Wed Sep 02 08:41:25 2009 -0700
     1.3 @@ -0,0 +1,84 @@
     1.4 +//
     1.5 +//  GTMNSData+zlib.h
     1.6 +//
     1.7 +//  Copyright 2007-2008 Google Inc.
     1.8 +//
     1.9 +//  Licensed under the Apache License, Version 2.0 (the "License"); you may not
    1.10 +//  use this file except in compliance with the License.  You may obtain a copy
    1.11 +//  of the License at
    1.12 +// 
    1.13 +//  http://www.apache.org/licenses/LICENSE-2.0
    1.14 +// 
    1.15 +//  Unless required by applicable law or agreed to in writing, software
    1.16 +//  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
    1.17 +//  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
    1.18 +//  License for the specific language governing permissions and limitations under
    1.19 +//  the License.
    1.20 +//
    1.21 +
    1.22 +#import <Foundation/Foundation.h>
    1.23 +#import "GTMDefines.h"
    1.24 +
    1.25 +/// Helpers for dealing w/ zlib inflate/deflate calls.
    1.26 +@interface NSData (GTMZLibAdditions)
    1.27 +
    1.28 +/// Return an autoreleased NSData w/ the result of gzipping the bytes.
    1.29 +//
    1.30 +//  Uses the default compression level.
    1.31 ++ (NSData *)gtm_dataByGzippingBytes:(const void *)bytes
    1.32 +                             length:(NSUInteger)length;
    1.33 +
    1.34 +/// Return an autoreleased NSData w/ the result of gzipping the payload of |data|.
    1.35 +//
    1.36 +//  Uses the default compression level.
    1.37 ++ (NSData *)gtm_dataByGzippingData:(NSData *)data;
    1.38 +
    1.39 +/// Return an autoreleased NSData w/ the result of gzipping the bytes using |level| compression level.
    1.40 +//
    1.41 +// |level| can be 1-9, any other values will be clipped to that range.
    1.42 ++ (NSData *)gtm_dataByGzippingBytes:(const void *)bytes
    1.43 +                             length:(NSUInteger)length
    1.44 +                   compressionLevel:(int)level;
    1.45 +
    1.46 +/// Return an autoreleased NSData w/ the result of gzipping the payload of |data| using |level| compression level.
    1.47 ++ (NSData *)gtm_dataByGzippingData:(NSData *)data
    1.48 +                  compressionLevel:(int)level;
    1.49 +
    1.50 +// NOTE: deflate is *NOT* gzip.  deflate is a "zlib" stream.  pick which one
    1.51 +// you really want to create.  (the inflate api will handle either)
    1.52 +
    1.53 +/// Return an autoreleased NSData w/ the result of deflating the bytes.
    1.54 +//
    1.55 +//  Uses the default compression level.
    1.56 ++ (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes
    1.57 +                              length:(NSUInteger)length;
    1.58 +
    1.59 +/// Return an autoreleased NSData w/ the result of deflating the payload of |data|.
    1.60 +//
    1.61 +//  Uses the default compression level.
    1.62 ++ (NSData *)gtm_dataByDeflatingData:(NSData *)data;
    1.63 +
    1.64 +/// Return an autoreleased NSData w/ the result of deflating the bytes using |level| compression level.
    1.65 +//
    1.66 +// |level| can be 1-9, any other values will be clipped to that range.
    1.67 ++ (NSData *)gtm_dataByDeflatingBytes:(const void *)bytes
    1.68 +                              length:(NSUInteger)length
    1.69 +                    compressionLevel:(int)level;
    1.70 +
    1.71 +/// Return an autoreleased NSData w/ the result of deflating the payload of |data| using |level| compression level.
    1.72 ++ (NSData *)gtm_dataByDeflatingData:(NSData *)data
    1.73 +                   compressionLevel:(int)level;
    1.74 +
    1.75 +
    1.76 +/// Return an autoreleased NSData w/ the result of decompressing the bytes.
    1.77 +//
    1.78 +// The bytes to decompress can be zlib or gzip payloads.
    1.79 ++ (NSData *)gtm_dataByInflatingBytes:(const void *)bytes
    1.80 +                              length:(NSUInteger)length;
    1.81 +
    1.82 +/// Return an autoreleased NSData w/ the result of decompressing the payload of |data|.
    1.83 +//
    1.84 +// The data to decompress can be zlib or gzip payloads.
    1.85 ++ (NSData *)gtm_dataByInflatingData:(NSData *)data;
    1.86 +
    1.87 +@end