subfd(3)

NAME
subfd - standard input, output, error for substdio

SYNTAX
#include <subfd.h> substdio *subfdin;
substdio *subfdout;
substdio *subfderr; int subfd_read(fd,buf,len); substdio *subfdinsmall;
substdio *subfdoutsmall; int subfd_readsmall(fd,buf,len); int fd;
char *buf;
int len;

DESCRIPTION
subfderr writes data to descriptor 2. subfdout writes data to descriptor 1. subfdin reads data from descriptor 0. It coordinates with subfdout: it flushes subfdout before refilling its buffer. This eliminates the need for subfdout flushing in most programs. To set up the same flushing mechanism for another input descriptor, use subfd_read in place of read. subfdoutsmall, subfd_readsmall, and subfdinsmall behave the same way as subfdout, subfd_read, and subfdin, except that they use small (256-byte) buffers. This is appropriate for programs that read data in small chunks.

SEE ALSO
substdio(3)