lib/utils/sys_stdio_mphal: Add support to poll sys.stdin and sys.stdout.

A port must provide the following function for this to work:

    uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags);
pull/1/head
Damien George 2019-06-19 14:02:08 +10:00
parent 3786592097
commit b7da67cdaa
2 changed files with 17 additions and 1 deletions

View File

@ -3,7 +3,7 @@
* *
* The MIT License (MIT) * The MIT License (MIT)
* *
* Copyright (c) 2013-2017 Damien P. George * Copyright (c) 2013-2019 Damien P. George
* *
* Permission is hereby granted, free of charge, to any person obtaining a copy * Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal * of this software and associated documentation files (the "Software"), to deal
@ -85,6 +85,16 @@ STATIC mp_uint_t stdio_write(mp_obj_t self_in, const void *buf, mp_uint_t size,
} }
} }
STATIC mp_uint_t stdio_ioctl(mp_obj_t self_in, mp_uint_t request, uintptr_t arg, int *errcode) {
(void)self_in;
if (request == MP_STREAM_POLL) {
return mp_hal_stdio_poll(arg);
} else {
*errcode = MP_EINVAL;
return MP_STREAM_ERROR;
}
}
STATIC mp_obj_t stdio_obj___exit__(size_t n_args, const mp_obj_t *args) { STATIC mp_obj_t stdio_obj___exit__(size_t n_args, const mp_obj_t *args) {
return mp_const_none; return mp_const_none;
} }
@ -112,6 +122,7 @@ STATIC MP_DEFINE_CONST_DICT(stdio_locals_dict, stdio_locals_dict_table);
STATIC const mp_stream_p_t stdio_obj_stream_p = { STATIC const mp_stream_p_t stdio_obj_stream_p = {
.read = stdio_read, .read = stdio_read,
.write = stdio_write, .write = stdio_write,
.ioctl = stdio_ioctl,
.is_text = true, .is_text = true,
}; };
@ -146,6 +157,7 @@ STATIC mp_uint_t stdio_buffer_write(mp_obj_t self_in, const void *buf, mp_uint_t
STATIC const mp_stream_p_t stdio_buffer_obj_stream_p = { STATIC const mp_stream_p_t stdio_buffer_obj_stream_p = {
.read = stdio_buffer_read, .read = stdio_buffer_read,
.write = stdio_buffer_write, .write = stdio_buffer_write,
.ioctl = stdio_ioctl,
.is_text = false, .is_text = false,
}; };

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@ -34,6 +34,10 @@
#include <mphalport.h> #include <mphalport.h>
#endif #endif
#ifndef mp_hal_stdio_poll
uintptr_t mp_hal_stdio_poll(uintptr_t poll_flags);
#endif
#ifndef mp_hal_stdin_rx_chr #ifndef mp_hal_stdin_rx_chr
int mp_hal_stdin_rx_chr(void); int mp_hal_stdin_rx_chr(void);
#endif #endif