// Copyright 2018 Google
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#import <Foundation/Foundation.h>
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/// This is a copy of Google Toolbox for Mac library to avoid creating an extra framework.
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// NOTE: For 64bit, none of these apis handle input sizes >32bits, they will return nil when given
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// such data. To handle data of that size you really should be streaming it rather then doing it all
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// in memory.
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@interface NSData (GULGzip)
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/// Returns an data as the result of decompressing the payload of |data|.The data to decompress must
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/// be a gzipped payloads.
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+ (NSData *)gul_dataByInflatingGzippedData:(NSData *)data error:(NSError **)error;
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/// Returns an compressed data with the result of gzipping the payload of |data|. Uses the default
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/// compression level.
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+ (NSData *)gul_dataByGzippingData:(NSData *)data error:(NSError **)error;
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FOUNDATION_EXPORT NSString *const GULNSDataZlibErrorDomain;
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FOUNDATION_EXPORT NSString *const GULNSDataZlibErrorKey; // NSNumber
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FOUNDATION_EXPORT NSString *const GULNSDataZlibRemainingBytesKey; // NSNumber
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typedef NS_ENUM(NSInteger, GULNSDataZlibError) {
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GULNSDataZlibErrorGreaterThan32BitsToCompress = 1024,
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// An internal zlib error.
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// GULNSDataZlibErrorKey will contain the error value.
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// NSLocalizedDescriptionKey may contain an error string from zlib.
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// Look in zlib.h for list of errors.
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GULNSDataZlibErrorInternal,
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// There was left over data in the buffer that was not used.
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// GULNSDataZlibRemainingBytesKey will contain number of remaining bytes.
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GULNSDataZlibErrorDataRemaining
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};
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@end
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