22 lines
571 B
Objective-C
22 lines
571 B
Objective-C
#import <Foundation/Foundation.h>
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@interface RingBuffer : NSObject {
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NSMutableData *buffer;
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SInt32 position;
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SInt32 tail;
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}
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@property (nonatomic, readonly) UInt32 freeSpace;
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//用MutableData初始化
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- (instancetype)initWithData:(NSMutableData*)data;
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// Returns false if there is not enough free space in buffer
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- (BOOL)appendByte:(uint8_t)byte;
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// Returns number of bytes written
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- (SInt32)appendData:(const NSData*)value offset:(SInt32)offset length:(SInt32)length;
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// Returns number of bytes written
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- (SInt32)flushToOutputStream:(NSOutputStream*)stream;
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@end
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