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 contents 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).

NAME

SYNTAX

DESCRIPTION

EXAMPLE

RETURN VALUE

SEE ALSO