<FSFileWriterCallback>协议 参考

继承自 <NSObject> .

构造函数
(BOOL)	- flush
	Flush internal buffer of the file 更多...
(unsigned long long)	- getSize
	Get total size of the file. 更多...
(BOOL)	- writeBlock:offset:
	Write a block data. 更多...

详细描述

This class represents a callback object to do file writing. All the pure virtual functions in this class are used as callback functions and should be implemented by user to do file writing in a customized way.

函数文档

flush()

- (BOOL) flush

required

Flush internal buffer of the file

返回

YES means success, while NO means failure.

getSize()

- (unsigned long long) getSize

required

Get total size of the file.

返回

File size, in bytes. Implementation can return 0 for any error.

writeBlock:offset:()

- (BOOL) writeBlock: (NSData *)  data offset: (unsigned long long)  offset

required

Write a block data.

参数

[in]	data	The block data.
[in]	offset	Byte offset from beginning of the file

返回

YES means success, while NO means failure.