Lerking/micropython
1
0
Fork 0
mirror of https://github.com/micropython/micropython.git synced 2026-01-06 20:20:14 +01:00
Code Issues Actions 52 Packages Projects Releases Wiki Activity

py: Add mp_get_buffer(), mp_get_buffer_raise() convenience functions to API.

Browse Source
This commit is contained in:
Paul Sokolovsky
2014-04-09 00:25:28 +03:00
parent 2b0091983f
commit 3aa8ee7c9e
3 changed files with 23 additions and 18 deletions
Download Patch File Download Diff File Expand all files Collapse all files

18
py/obj.c
View File

@@ -330,3 +330,21 @@ mp_obj_t mp_identity(mp_obj_t self) {
return self;
}
MP_DEFINE_CONST_FUN_OBJ_1(mp_identity_obj, mp_identity);
bool mp_get_buffer(mp_obj_t obj, buffer_info_t *bufinfo) {
mp_obj_base_t *o = (mp_obj_base_t *)obj;
if (o->type->buffer_p.get_buffer == NULL) {
return false;
}
o->type->buffer_p.get_buffer(o, bufinfo, BUFFER_READ);
if (bufinfo->buf == NULL) {
return false;
}
return true;
}
void mp_get_buffer_raise(mp_obj_t obj, buffer_info_t *bufinfo) {
if (!mp_get_buffer(obj, bufinfo)) {
nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "Object with buffer protocol required"));
}
}