Provided by: libowfat-dev_0.30-2ubuntu1_amd64
ndelay_on - put file descriptor in non-blocking mode
#include <ndelay.h> extern int ndelay_on(int fd);
ndelay_on puts a file descriptor in non-blocking mode. Reading from and writing to non- blocking network sockets, FIFOs or device files will return immediately, even if not as many bytes have been processed as were specified. If an error occurred, ndelay_on will return nonzero and set errno accordingly.
fcntl(2), ndelay_off(3) ndelay_on(3)