iphone - Is there any way in NSFileManager to get contents of a file only for some range of bytes -

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i have files of size 6.7gb, , more (these video files). want chunks of file data send server, :

contents = [filemanager contentsatpath:path]; if (mfileoffset<[contents length]) { nsrange range = nsmakerange(mfileoffset, (allowedsize>[contents length]?[contents length]:allowedsize); contents =[contents subdatawithrange:range];

however, produces memory issue:

malloc: *** mmap(size=616927232) failed (error code=12) *** error: can't allocate region *** set breakpoint in malloc_error_break debug app(2700,0x4136000) malloc: *** mmap(size=616927232) failed (error code=12) *** error: can't allocate region

is there way fseek in c++ read bytes of file come in specified range only?

there method in nsfilehandle synchronously reads data specified number of bytes.

-[nsfilehandle readdataoflength:]

for seeking :

– offsetinfile – seektoendoffile – seektofileoffset:

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