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micropython: add micropython component

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KY-zhang-X
2022-09-29 12:10:37 +08:00
parent 1514f1cb9b
commit dd76146324
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components/language/micropython/port/modules/vfs_tos_file.c Normal file
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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2022 KY-zhang-X
*
* 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 "py/mpconfig.h"
#if MICROPY_VFS_TOS
#include "py/mphal.h"
#include "py/mpthread.h"
#include "py/runtime.h"
#include "py/stream.h"
#include "vfs_tos.h"
#include "unistd.h"
#if !(MP_GEN_HDR)
#include "tos_vfs.h"
#endif
const byte vfs_err_to_errno_table[] = {
[VFS_ERR_NONE] = 0,
[VFS_ERR_BUFFER_NULL] = MP_EINVAL,
[VFS_ERR_DEVICE_NOT_REGISTERED] = MP_ENODEV,
[VFS_ERR_DEVICE_ALREADY_REGISTERED] = 0, // should never be here
[VFS_ERR_FILE_NO_AVAILABLE] = MP_EACCES,
[VFS_ERR_FILE_NOT_OPEN] = MP_EBADF,
[VFS_ERR_FS_ALREADY_MOUNTED] = 0, // should never be here
[VFS_ERR_FS_ALREADY_REGISTERED] = 0, // should never be here
[VFS_ERR_FS_NOT_REGISTERED] = MP_ENODEV,
[VFS_ERR_FS_NOT_MOUNT] = MP_ENODEV,
[VFS_ERR_OPS_NULL] = MP_ENODEV,
[VFS_ERR_OPS_FAILED] = MP_ENODEV,
[VFS_ERR_INODE_NAME_TOO_LONG] = MP_EINVAL,
[VFS_ERR_INODE_CREATE_FAILED] = MP_ENOMEM,
[VFS_ERR_INODE_NOT_FOUND] = MP_ENOENT,
[VFS_ERR_INODE_INVALID] = MP_ENOENT,
[VFS_ERR_INODE_BUSY] = MP_EBUSY,
[VFS_ERR_INODE_INAVALIABLE] = MP_ENOENT,
[VFS_ERR_OPEN_DIR] = MP_EISDIR, // not used
[VFS_ERR_OUT_OF_MEMORY] = MP_ENOMEM,
[VFS_ERR_PARA_INVALID] = MP_EINVAL,
[VFS_ERR_PATH_TOO_LONG] = MP_EINVAL,
};
typedef struct _mp_obj_vfs_tos_file_t {
mp_obj_base_t base;
int fd;
} mp_obj_vfs_tos_file_t;
#if MICROPY_CPYTHON_COMPAT
STATIC void check_fd_is_open(const mp_obj_vfs_tos_file_t *o) {
if (o->fd < 0) {
mp_raise_ValueError(MP_ERROR_TEXT("I/O operation on closed file"));
}
}
#else
#define check_fd_is_open(o)
#endif
STATIC void vfs_tos_file_print(const mp_print_t *print, mp_obj_t self_in, mp_print_kind_t kind) {
(void)kind;
mp_obj_vfs_tos_file_t *self = MP_OBJ_TO_PTR(self_in);
mp_printf(print, "<io.%s %d>", mp_obj_get_type_str(self_in), self->fd);
}
mp_obj_t mp_vfs_tos_file_open(const mp_obj_type_t *type, mp_obj_t file_in, mp_obj_t mode_in) {
// [REF] vfs_posix_file.c > mp_vfs_posix_file_open
// [REF] vfs_fat_file.c > mp_vfs_fat_file_open
mp_obj_vfs_tos_file_t *o = m_new_obj(mp_obj_vfs_tos_file_t);
const char *mode_s = mp_obj_str_get_str(mode_in);
int mode = 0;
while (*mode_s) {
switch (*mode_s++) {
case 'r':
mode |= VFS_OFLAG_READ;
break;
case 'w':
mode |= VFS_OFLAG_WRITE | VFS_OFLAG_CREATE_ALWAYS;
break;
case 'x':
mode |= VFS_OFLAG_WRITE | VFS_OFLAG_CREATE_NEW;
break;
case 'a':
mode |= VFS_OFLAG_WRITE | VFS_OFLAG_OPEN_ALWAYS; // FIXME: VFS_OFLAG_OPEN_APPEND ?
break;
case '+':
mode |= VFS_OFLAG_READ | VFS_OFLAG_WRITE;
break;
#if MICROPY_PY_IO_FILEIO
// If we don't have io.FileIO, then files are in text mode implicitly
case 'b':
type = &mp_type_vfs_tos_fileio;
break;
case 't':
type = &mp_type_vfs_tos_textio;
break;
#endif /* MICROPY_PY_IO_FILEIO */
}
}
o->base.type = type;
mp_obj_t fid = file_in;
if (mp_obj_is_small_int(fid)) {
o->fd = MP_OBJ_SMALL_INT_VALUE(fid);
return MP_OBJ_FROM_PTR(o);
}
const char *fname = mp_obj_str_get_str(fid);
int r = tos_vfs_open(fname, mode);
if (r < 0) {
mp_raise_OSError(vfs_err_to_errno_table[-r]);
}
o->fd = r;
return MP_OBJ_FROM_PTR(o);
}
STATIC mp_obj_t vfs_tos_file_make_new(const mp_obj_type_t *type, size_t n_args, size_t n_kw, const mp_obj_t *args) {
// [REF] vfs_posix_file.c > vfs_posix_file_make_new
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_file, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_mode, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_QSTR(MP_QSTR_r)} },
};
mp_arg_val_t arg_vals[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all_kw_array(n_args, n_kw, args, MP_ARRAY_SIZE(allowed_args), allowed_args, arg_vals);
return mp_vfs_tos_file_open(type, arg_vals[0].u_obj, arg_vals[1].u_obj);
}
STATIC mp_obj_t vfs_tos_file_fileno(mp_obj_t self_in) {
mp_obj_vfs_tos_file_t *self = MP_OBJ_TO_PTR(self_in);
check_fd_is_open(self);
return MP_OBJ_NEW_SMALL_INT(self->fd);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_1(vfs_tos_file_fileno_obj, vfs_tos_file_fileno);
STATIC mp_obj_t vfs_tos_file___exit__(size_t n_args, const mp_obj_t *args) {
(void)n_args;
return mp_stream_close(args[0]);
}
STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(vfs_tos_file___exit___obj, 4, 4, vfs_tos_file___exit__);
STATIC mp_uint_t vfs_tos_file_read(mp_obj_t o_in, void *buf, mp_uint_t size, int *errcode) {
// [REF] vfs_posix_file.c > vfs_posix_file_read
mp_obj_vfs_tos_file_t *o = MP_OBJ_TO_PTR(o_in);
check_fd_is_open(o);
int r = tos_vfs_read(o->fd, buf, size);
if (r < 0) {
*errcode = vfs_err_to_errno_table[-r];
return MP_STREAM_ERROR;
}
return (mp_uint_t)r;
}
STATIC mp_uint_t vfs_tos_file_write(mp_obj_t o_in, const void *buf, mp_uint_t size, int *errcode) {
// [REF] vfs_posix_file.c > vfs_posix_file_write
mp_obj_vfs_tos_file_t *o = MP_OBJ_TO_PTR(o_in);
check_fd_is_open(o);
#if MICROPY_PY_OS_DUPTERM
// FIXME: not supported
if (o->fd <= STDERR_FILENO) {
mp_hal_stdout_tx_strn(buf, size);
return size;
}
#endif /* MICROPY_PY_OS_DUPTERM */
int r = tos_vfs_write(o->fd, buf, size);
if (r < 0) {
*errcode = vfs_err_to_errno_table[-r];
return MP_STREAM_ERROR;
}
return (mp_uint_t)r;
}
STATIC mp_uint_t vfs_tos_file_ioctl(mp_obj_t o_in, mp_uint_t request, uintptr_t arg, int *errcode) {
// [REF] vfs_posix_file.c > vfs_posix_file_ioctl
mp_obj_vfs_tos_file_t *o = MP_OBJ_TO_PTR(o_in);
if (request != MP_STREAM_CLOSE) {
check_fd_is_open(o);
}
switch (request) {
case MP_STREAM_FLUSH: {
int r = tos_vfs_sync(o->fd);
if (r < 0) {
*errcode = vfs_err_to_errno_table[-r];
return MP_STREAM_ERROR;
}
return 0;
}
case MP_STREAM_SEEK: {
struct mp_stream_seek_t *s = (struct mp_stream_seek_t *)arg;
int r = tos_vfs_lseek(o->fd, s->offset, s->whence);
if (r < 0) {
*errcode = vfs_err_to_errno_table[-r];
return MP_STREAM_ERROR;
}
s->offset = r;
return 0;
}
case MP_STREAM_CLOSE: {
int r = tos_vfs_close(o->fd);
if (r < 0) {
*errcode = vfs_err_to_errno_table[-r];
return MP_STREAM_ERROR;
}
#if MICROPY_CPYTHON_COMPAT
o->fd = -1;
#endif
return 0;
}
case MP_STREAM_GET_FILENO:
return o->fd;
#if MICROPY_PY_USELECT
case MP_STREAM_POLL: {
mp_raise_NotImplementedError(MP_ERROR_TEXT("poll on file not available on TencentOS-tiny"));
}
#endif
default:
*errcode = MP_EINVAL;
return MP_STREAM_ERROR;
}
}
STATIC const mp_rom_map_elem_t vfs_tos_rawfile_locals_dict_table[] = {
{ MP_ROM_QSTR(MP_QSTR_fileno), MP_ROM_PTR(&vfs_tos_file_fileno_obj) },
{ MP_ROM_QSTR(MP_QSTR_read), MP_ROM_PTR(&mp_stream_read_obj) },
{ MP_ROM_QSTR(MP_QSTR_readinto), MP_ROM_PTR(&mp_stream_readinto_obj) },
{ MP_ROM_QSTR(MP_QSTR_readline), MP_ROM_PTR(&mp_stream_unbuffered_readline_obj) },
{ MP_ROM_QSTR(MP_QSTR_readlines), MP_ROM_PTR(&mp_stream_unbuffered_readlines_obj) },
{ MP_ROM_QSTR(MP_QSTR_write), MP_ROM_PTR(&mp_stream_write_obj) },
{ MP_ROM_QSTR(MP_QSTR_seek), MP_ROM_PTR(&mp_stream_seek_obj) },
{ MP_ROM_QSTR(MP_QSTR_tell), MP_ROM_PTR(&mp_stream_tell_obj) },
{ MP_ROM_QSTR(MP_QSTR_flush), MP_ROM_PTR(&mp_stream_flush_obj) },
{ MP_ROM_QSTR(MP_QSTR_close), MP_ROM_PTR(&mp_stream_close_obj) },
{ MP_ROM_QSTR(MP_QSTR___enter__), MP_ROM_PTR(&mp_identity_obj) },
{ MP_ROM_QSTR(MP_QSTR___exit__), MP_ROM_PTR(&vfs_tos_file___exit___obj) },
};
STATIC MP_DEFINE_CONST_DICT(vfs_tos_rawfile_locals_dict, vfs_tos_rawfile_locals_dict_table);
#if MICROPY_PY_IO_FILEIO
STATIC const mp_stream_p_t vfs_tos_fileio_stream_p = {
.read = vfs_tos_file_read,
.write = vfs_tos_file_write,
.ioctl = vfs_tos_file_ioctl,
};
const mp_obj_type_t mp_type_vfs_tos_fileio = {
{ &mp_type_type },
.name = MP_QSTR_FileIO,
.print = vfs_tos_file_print,
.make_new = vfs_tos_file_make_new,
.getiter = mp_identity_getiter,
.iternext = mp_stream_unbuffered_iter,
.protocol = &vfs_tos_fileio_stream_p,
.locals_dict = (mp_obj_dict_t *)&vfs_tos_rawfile_locals_dict,
};
#endif /* MICROPY_PY_IO_FILEIO */
STATIC const mp_stream_p_t vfs_tos_textio_stream_p = {
.read = vfs_tos_file_read,
.write = vfs_tos_file_write,
.ioctl = vfs_tos_file_ioctl,
.is_text = true,
};
const mp_obj_type_t mp_type_vfs_tos_textio = {
{&mp_type_type},
.name = MP_QSTR_TextIOWrapper,
.print = vfs_tos_file_print,
.make_new = vfs_tos_file_make_new,
.getiter = mp_identity_getiter,
.iternext = mp_stream_unbuffered_iter,
.protocol = &vfs_tos_textio_stream_p,
.locals_dict = (mp_obj_dict_t *)&vfs_tos_rawfile_locals_dict,
};
// Note: buffering and encoding args are currently ignored
mp_obj_t mp_builtin_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
enum { ARG_file, ARG_mode, ARG_encoding };
static const mp_arg_t allowed_args[] = {
{ MP_QSTR_file, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_rom_obj = MP_ROM_NONE} },
{ MP_QSTR_mode, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_QSTR(MP_QSTR_r)} },
{ MP_QSTR_buffering, MP_ARG_INT, {.u_int = -1} },
{ MP_QSTR_encoding, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_NONE} },
};
// parse args
mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
mp_arg_parse_all(n_args, pos_args, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
// If the file is an integer then delegate straight to the POSIX handler
return mp_vfs_tos_file_open(&mp_type_textio, args[ARG_file].u_obj, args[ARG_mode].u_obj);
}
MP_DEFINE_CONST_FUN_OBJ_KW(mp_builtin_open_obj, 1, mp_builtin_open);
#endif /* MICROPY_VFS_TOS */