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buffer_mmapread(3)	   Library Functions Manual	    buffer_mmapread(3)

NAME
       buffer_mmapread - create	read-only memory-mapped	file buffer

SYNTAX
       #include	<libowfat/buffer.h>

       int buffer_mmapread(buffer &b,const char* filename);

DESCRIPTION
       buffer_mmapread opens filename for reading and fills b so that the con-
       tents  of  the  file can	be read	from it.  Using	mmap is	more efficient
       than reading through a real buffer, but you have	to  call  buffer_close
       to unmap	the memory in the end.

EXAMPLE
	 #include <libowfat/buffer.h>
	 #include <libowfat/open.h>

	 buffer	input;
	 char x;

	 buffer_mmapread(&input,"/etc/passwd");
	 while (buffer_get(&input,&x,1)==1) {
	   buffer_put(buffer_1,&x,1);
	   if (x=='\n')	break;
	 }
	 buffer_flush(buffer_1);
	 buffer_close(&input);

RETURN VALUE
       buffer_mmapread	returns	0 if everything	was fine, -1 on	error (setting
       errno).

SEE ALSO
       buffer_flush(3),	buffer(3)

							    buffer_mmapread(3)

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