int kr_io2_output(kr_io2_t *io) {
ssize_t ret;
if (!kr_io2_want_out(io)) {
return 0;
}
ret = kr_io2_write(io);
//printk("kr_io2_output wrote: %zu old len: %zu new len: %zu",
// ret, io->len, io->len - ret);
if (ret != io->len) {
if (ret < 1) {
printke("its bad we should certainly fail, ret %zu len %zu",
ret, io->len);
return ret;
} else {
io->len -= ret;
io->wr_buf += ret;
}
return 0;
}
kr_io2_restart(io);
return 0;
}
int kr_io2_sync(kr_io2_t *io) {
// FILES ONLY blocking or failing!
ssize_t ret;
if (!kr_io2_want_out(io)) {
return 0;
}
ret = kr_io2_write (io);
if (ret != io->len) {
printk ("Could not write all we wanted to: %zd of %zu",
ret, io->len);
printke ("Failing here a, this should not happen as a file only func");
exit (77);
}
kr_io2_restart (io);
return 0;
}
int kr_io2_flush (kr_io2_t *io) {
int ret;
int len;
if (!kr_io2_want_out (io)) {
return 0;
}
len = io->len;
ret = kr_io2_write (io);
if (ret != len) {
printk ("Could not write all we wanted to: %d of %d",
ret, len);
printke ("Failing here a temporary test");
exit (77);
}
kr_io2_restart (io);
return 0;
}
