Commit c8c44a4c authored by Damien George's avatar Damien George
Browse files

py: Add ioctl method to stream protocol; add initial modselect.

parent 81057369
/*
* This file is part of the Micro Python project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2014 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <assert.h>
#include <string.h>
#include <stdint.h>
#include "mpconfig.h"
#include "misc.h"
#include "nlr.h"
#include "qstr.h"
#include "obj.h"
#include "runtime.h"
#include "objtuple.h"
#include "binary.h"
#if MICROPY_PY_SELECT
/// \module select - Provides select function to wait for events on a stream
///
/// This module provides the select function.
/// \function select(rlist, wlist, xlist[, timeout])
mp_obj_t select_select(uint n_args, const mp_obj_t *args) {
return mp_obj_new_bytes((void*)mp_obj_int_get(ptr), mp_obj_int_get(size));
}
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(select_select_obj, 3, 4, select_select);
STATIC const mp_map_elem_t mp_module_select_globals_table[] = {
{ MP_OBJ_NEW_QSTR(MP_QSTR___name__), MP_OBJ_NEW_QSTR(MP_QSTR_select) },
{ MP_OBJ_NEW_QSTR(MP_QSTR_select), (mp_obj_t)&select_select_obj },
};
STATIC const mp_obj_dict_t mp_module_select_globals = {
.base = {&mp_type_dict},
.map = {
.all_keys_are_qstrs = 1,
.table_is_fixed_array = 1,
.used = MP_ARRAY_SIZE(mp_module_select_globals_table),
.alloc = MP_ARRAY_SIZE(mp_module_select_globals_table),
.table = (mp_map_elem_t*)mp_module_select_globals_table,
},
};
const mp_obj_module_t mp_module_select = {
.base = { &mp_type_module },
.name = MP_QSTR_select,
.globals = (mp_obj_dict_t*)&mp_module_select_globals,
};
#endif // MICROPY_PY_SELECT
......@@ -390,6 +390,10 @@ typedef double mp_float_t;
#define MICROPY_PY_ZLIBD (0)
#endif
#ifndef MICROPY_PY_SELECT
#define MICROPY_PY_SELECT (0)
#endif
/*****************************************************************************/
/* Hooks for a port to add builtins */
......
......@@ -230,12 +230,14 @@ void mp_get_buffer_raise(mp_obj_t obj, mp_buffer_info_t *bufinfo, mp_uint_t flag
// Stream protocol
#define MP_STREAM_ERROR (-1)
#define MP_STREAM_FLUSH (1)
#define MP_STREAM_POLL (2)
typedef struct _mp_stream_p_t {
// On error, functions should return MP_STREAM_ERROR and fill in *errcode (values
// 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);
// add seek() ?
mp_uint_t (*ioctl(mp_obj_t obj, mp_uint_t request, int *errcode, ...);
mp_uint_t is_text : 1; // default is bytes, set this for text stream
} mp_stream_p_t;
......
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