STATIC mp_uint_t fdfile_ioctl(mp_obj_t o_in, mp_uint_t request, uintptr_t arg, int *errcode) {
mp_obj_fdfile_t *o = MP_OBJ_TO_PTR(o_in);
check_fd_is_open(o);
switch (request) {
case MP_STREAM_SEEK: {
struct mp_stream_seek_t *s = (struct mp_stream_seek_t*)arg;
off_t off = lseek(o->fd, s->offset, s->whence);
if (off == (off_t)-1) {
*errcode = errno;
return MP_STREAM_ERROR;
}
s->offset = off;
return 0;
}
case MP_STREAM_FLUSH:
if (fsync(o->fd) < 0) {
*errcode = errno;
return MP_STREAM_ERROR;
}
return 0;
default:
*errcode = EINVAL;
return MP_STREAM_ERROR;
}
}
STATIC machine_int_t fdfile_write(mp_obj_t o_in, const void *buf, machine_uint_t size, int *errcode) {
mp_obj_fdfile_t *o = o_in;
check_fd_is_open(o);
machine_int_t r = write(o->fd, buf, size);
if (r == -1) {
*errcode = errno;
}
return r;
}
STATIC mp_uint_t fdfile_write(mp_obj_t o_in, const void *buf, mp_uint_t size, int *errcode) {
mp_obj_fdfile_t *o = o_in;
check_fd_is_open(o);
mp_int_t r = write(o->fd, buf, size);
if (r == -1) {
*errcode = errno;
return MP_STREAM_ERROR;
}
return r;
}
STATIC mp_uint_t fdfile_read(mp_obj_t o_in, void *buf, mp_uint_t size, int *errcode) {
mp_obj_fdfile_t *o = MP_OBJ_TO_PTR(o_in);
check_fd_is_open(o);
mp_int_t r = read(o->fd, buf, size);
if (r == -1) {
*errcode = errno;
return MP_STREAM_ERROR;
}
return r;
}
STATIC mp_uint_t fdfile_write(mp_obj_t o_in, const void *buf, mp_uint_t size, int *errcode) {
mp_obj_fdfile_t *o = MP_OBJ_TO_PTR(o_in);
check_fd_is_open(o);
#if MICROPY_PY_OS_DUPTERM
if (o->fd <= STDERR_FILENO) {
mp_hal_stdout_tx_strn(buf, size);
return size;
}
#endif
mp_int_t r = write(o->fd, buf, size);
while (r == -1 && errno == EINTR) {
if (MP_STATE_VM(mp_pending_exception) != MP_OBJ_NULL) {
mp_obj_t obj = MP_STATE_VM(mp_pending_exception);
MP_STATE_VM(mp_pending_exception) = MP_OBJ_NULL;
nlr_raise(obj);
}
r = write(o->fd, buf, size);
}
if (r == -1) {
*errcode = errno;
return MP_STREAM_ERROR;
}
return r;
}
STATIC mp_obj_t fdfile_flush(mp_obj_t self_in) {
mp_obj_fdfile_t *self = self_in;
check_fd_is_open(self);
fsync(self->fd);
return mp_const_none;
}
STATIC mp_obj_t fdfile_fileno(mp_obj_t self_in) {
mp_obj_fdfile_t *self = self_in;
check_fd_is_open(self);
return MP_OBJ_NEW_SMALL_INT(self->fd);
}
