diff options
Diffstat (limited to 'py/stream.c')
| -rw-r--r-- | py/stream.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/py/stream.c b/py/stream.c index a0940599cd..7d080331dd 100644 --- a/py/stream.c +++ b/py/stream.c @@ -215,6 +215,27 @@ STATIC mp_obj_t stream_write_method(mp_obj_t self_in, mp_obj_t arg) { return mp_stream_write(self_in, bufinfo.buf, bufinfo.len); } +STATIC mp_obj_t stream_readinto(mp_obj_t self_in, mp_obj_t arg) { + struct _mp_obj_base_t *o = (struct _mp_obj_base_t *)self_in; + if (o->type->stream_p == NULL || o->type->stream_p->read == NULL) { + // CPython: io.UnsupportedOperation, OSError subclass + nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "Operation not supported")); + } + mp_buffer_info_t bufinfo; + mp_get_buffer_raise(arg, &bufinfo, MP_BUFFER_WRITE); + + int error; + mp_uint_t out_sz = o->type->stream_p->read(o, bufinfo.buf, bufinfo.len, &error); + if (out_sz == MP_STREAM_ERROR) { + if (is_nonblocking_error(error)) { + return mp_const_none; + } + nlr_raise(mp_obj_new_exception_arg1(&mp_type_OSError, MP_OBJ_NEW_SMALL_INT(error))); + } else { + return MP_OBJ_NEW_SMALL_INT(out_sz); + } +} + STATIC mp_obj_t stream_readall(mp_obj_t self_in) { struct _mp_obj_base_t *o = (struct _mp_obj_base_t *)self_in; if (o->type->stream_p == NULL || o->type->stream_p->read == NULL) { @@ -349,6 +370,7 @@ mp_obj_t mp_stream_unbuffered_iter(mp_obj_t self) { } MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_read_obj, 1, 2, stream_read); +MP_DEFINE_CONST_FUN_OBJ_2(mp_stream_readinto_obj, stream_readinto); MP_DEFINE_CONST_FUN_OBJ_1(mp_stream_readall_obj, stream_readall); MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_stream_unbuffered_readline_obj, 1, 2, stream_unbuffered_readline); MP_DEFINE_CONST_FUN_OBJ_2(mp_stream_write_obj, stream_write_method); |