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stream: Convert .ioctl() to take fixed number of args.

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This is more efficient, as allows to use register calling convention.
If needed, a structure pointer can be passed as argument to pass more
data.
This commit is contained in:
Paul Sokolovsky
2014-11-17 00:16:14 +02:00
parent 5228854f0e
commit f4a6a577ab
6 changed files with 11 additions and 23 deletions
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2
py/obj.h
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@@ -238,7 +238,7 @@ typedef struct _mp_stream_p_t {
// are implementation-dependent, but will be exposed to user, e.g. via exception).
mp_uint_t (*read)(mp_obj_t obj, void *buf, mp_uint_t size, int *errcode);
mp_uint_t (*write)(mp_obj_t obj, const void *buf, mp_uint_t size, int *errcode);
mp_uint_t (*ioctl)(mp_obj_t obj, mp_uint_t request, int *errcode, ...);
mp_uint_t (*ioctl)(mp_obj_t obj, mp_uint_t request, mp_uint_t arg, int *errcode);
mp_uint_t is_text : 1; // default is bytes, set this for text stream
} mp_stream_p_t;