2017-01-26 23:10:09 -05:00
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/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Damien P. George
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include <string.h>
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#include "py/runtime.h"
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#include "py/objstr.h"
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#include "py/mperrno.h"
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#include "extmod/vfs.h"
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#if MICROPY_VFS
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2017-01-29 03:20:27 -05:00
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#if MICROPY_VFS_FAT
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#include "extmod/vfs_fat.h"
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#endif
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2017-10-27 03:01:25 -04:00
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// For mp_vfs_proxy_call, the maximum number of additional args that can be passed.
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// A fixed maximum size is used to avoid the need for a costly variable array.
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#define PROXY_MAX_ARGS (2)
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2017-01-26 23:10:09 -05:00
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// path is the path to lookup and *path_out holds the path within the VFS
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// object (starts with / if an absolute path).
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2017-01-28 23:14:15 -05:00
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// Returns MP_VFS_ROOT for root dir (and then path_out is undefined) and
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// MP_VFS_NONE for path not found.
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mp_vfs_mount_t *mp_vfs_lookup_path(const char *path, const char **path_out) {
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2017-03-13 06:37:21 -04:00
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if (*path == '/' || MP_STATE_VM(vfs_cur) == MP_VFS_ROOT) {
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// an absolute path, or the current volume is root, so search root dir
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bool is_abs = 0;
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if (*path == '/') {
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++path;
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is_abs = 1;
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2017-01-26 23:10:09 -05:00
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}
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2017-03-10 01:13:29 -05:00
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if (*path == '\0') {
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// path is "" or "/" so return virtual root
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return MP_VFS_ROOT;
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}
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2017-03-13 06:37:21 -04:00
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for (mp_vfs_mount_t *vfs = MP_STATE_VM(vfs_mount_table); vfs != NULL; vfs = vfs->next) {
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size_t len = vfs->len - 1;
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2017-03-10 01:13:29 -05:00
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if (len == 0) {
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*path_out = path - is_abs;
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return vfs;
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}
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2017-03-13 06:37:21 -04:00
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if (strncmp(path, vfs->str + 1, len) == 0) {
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if (path[len] == '/') {
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*path_out = path + len;
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return vfs;
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} else if (path[len] == '\0') {
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*path_out = "/";
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return vfs;
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}
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2017-01-26 23:10:09 -05:00
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}
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}
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2017-03-10 01:13:29 -05:00
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// if we get here then there's nothing mounted on /
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2017-03-13 06:37:21 -04:00
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if (is_abs) {
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// path began with / and was not found
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return MP_VFS_NONE;
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}
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2017-01-26 23:10:09 -05:00
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}
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2017-03-13 06:37:21 -04:00
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// a relative path within a mounted device
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*path_out = path;
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return MP_STATE_VM(vfs_cur);
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2017-01-26 23:10:09 -05:00
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}
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2017-01-28 23:14:15 -05:00
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// Version of mp_vfs_lookup_path that takes and returns uPy string objects.
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2017-01-27 06:40:15 -05:00
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STATIC mp_vfs_mount_t *lookup_path(mp_obj_t path_in, mp_obj_t *path_out) {
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2017-01-26 23:10:09 -05:00
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const char *path = mp_obj_str_get_str(path_in);
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const char *p_out;
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2017-01-28 23:14:15 -05:00
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mp_vfs_mount_t *vfs = mp_vfs_lookup_path(path, &p_out);
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if (vfs != MP_VFS_NONE && vfs != MP_VFS_ROOT) {
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2017-01-26 23:10:09 -05:00
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*path_out = mp_obj_new_str_of_type(mp_obj_get_type(path_in),
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(const byte*)p_out, strlen(p_out));
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}
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return vfs;
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}
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2017-01-27 06:40:15 -05:00
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STATIC mp_obj_t mp_vfs_proxy_call(mp_vfs_mount_t *vfs, qstr meth_name, size_t n_args, const mp_obj_t *args) {
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2017-10-27 03:01:25 -04:00
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assert(n_args <= PROXY_MAX_ARGS);
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2017-01-28 23:14:15 -05:00
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if (vfs == MP_VFS_NONE) {
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2017-01-26 23:10:09 -05:00
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// mount point not found
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mp_raise_OSError(MP_ENODEV);
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}
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2017-01-28 23:14:15 -05:00
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if (vfs == MP_VFS_ROOT) {
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2017-01-26 23:10:09 -05:00
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// can't do operation on root dir
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mp_raise_OSError(MP_EPERM);
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}
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2017-10-27 03:01:25 -04:00
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mp_obj_t meth[2 + PROXY_MAX_ARGS];
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2017-01-26 23:10:09 -05:00
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mp_load_method(vfs->obj, meth_name, meth);
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if (args != NULL) {
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memcpy(meth + 2, args, n_args * sizeof(*args));
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}
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return mp_call_method_n_kw(n_args, 0, meth);
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}
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mp_import_stat_t mp_vfs_import_stat(const char *path) {
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const char *path_out;
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2017-01-28 23:14:15 -05:00
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mp_vfs_mount_t *vfs = mp_vfs_lookup_path(path, &path_out);
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if (vfs == MP_VFS_NONE || vfs == MP_VFS_ROOT) {
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2017-01-26 23:10:09 -05:00
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return MP_IMPORT_STAT_NO_EXIST;
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}
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2018-06-05 23:12:23 -04:00
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2018-06-06 00:24:23 -04:00
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// If the mounted object has the VFS protocol, call its import_stat helper
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protocols: Allow them to be (optionally) type-safe
Protocols are nice, but there is no way for C code to verify whether
a type's "protocol" structure actually implements some particular
protocol. As a result, you can pass an object that implements the
"vfs" protocol to one that expects the "stream" protocol, and the
opposite of awesomeness ensues.
This patch adds an OPTIONAL (but enabled by default) protocol identifier
as the first member of any protocol structure. This identifier is
simply a unique QSTR chosen by the protocol designer and used by each
protocol implementer. When checking for protocol support, instead of
just checking whether the object's type has a non-NULL protocol field,
use `mp_proto_get` which implements the protocol check when possible.
The existing protocols are now named:
protocol_framebuf
protocol_i2c
protocol_pin
protocol_stream
protocol_spi
protocol_vfs
(most of these are unused in CP and are just inherited from MP; vfs and
stream are definitely used though)
I did not find any crashing examples, but here's one to give a flavor of what
is improved, using `micropython_coverage`. Before the change,
the vfs "ioctl" protocol is invoked, and the result is not intelligible
as json (but it could have resulted in a hard fault, potentially):
>>> import uos, ujson
>>> u = uos.VfsPosix('/tmp')
>>> ujson.load(u)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
ValueError: syntax error in JSON
After the change, the vfs object is correctly detected as not supporting
the stream protocol:
>>> ujson.load(p)
Traceback (most recent call last):
File "<stdin>", line 1, in <module>
OSError: stream operation not supported
2019-12-03 15:50:37 -05:00
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const mp_vfs_proto_t *proto = (mp_vfs_proto_t*)mp_proto_get(MP_QSTR_protocol_vfs, vfs->obj);
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2018-06-06 00:24:23 -04:00
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if (proto != NULL) {
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return proto->import_stat(MP_OBJ_TO_PTR(vfs->obj), path_out);
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2017-01-27 01:17:54 -05:00
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}
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2018-05-02 03:08:48 -04:00
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// delegate to vfs.stat() method
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mp_obj_t path_o = mp_obj_new_str(path_out, strlen(path_out));
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mp_obj_t stat;
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nlr_buf_t nlr;
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if (nlr_push(&nlr) == 0) {
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stat = mp_vfs_proxy_call(vfs, MP_QSTR_stat, 1, &path_o);
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nlr_pop();
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} else {
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// assume an exception means that the path is not found
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return MP_IMPORT_STAT_NO_EXIST;
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}
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mp_obj_t *items;
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mp_obj_get_array_fixed_n(stat, 10, &items);
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mp_int_t st_mode = mp_obj_get_int(items[0]);
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if (st_mode & MP_S_IFDIR) {
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return MP_IMPORT_STAT_DIR;
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} else {
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return MP_IMPORT_STAT_FILE;
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2017-01-27 01:17:54 -05:00
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}
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2017-01-26 23:10:09 -05:00
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}
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mp_obj_t mp_vfs_mount(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_readonly, ARG_mkfs };
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static const mp_arg_t allowed_args[] = {
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2018-06-05 21:57:01 -04:00
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{ MP_QSTR_readonly, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_PTR(&mp_const_false_obj)} },
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{ MP_QSTR_mkfs, MP_ARG_KW_ONLY | MP_ARG_OBJ, {.u_rom_obj = MP_ROM_PTR(&mp_const_false_obj)} },
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2017-01-26 23:10:09 -05:00
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};
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// parse args
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mp_arg_val_t args[MP_ARRAY_SIZE(allowed_args)];
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mp_arg_parse_all(n_args - 2, pos_args + 2, kw_args, MP_ARRAY_SIZE(allowed_args), allowed_args, args);
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// get the mount point
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2017-03-25 04:48:44 -04:00
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size_t mnt_len;
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2017-01-26 23:10:09 -05:00
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const char *mnt_str = mp_obj_str_get_data(pos_args[1], &mnt_len);
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2017-02-08 20:03:12 -05:00
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// see if we need to auto-detect and create the filesystem
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mp_obj_t vfs_obj = pos_args[0];
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mp_obj_t dest[2];
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mp_load_method_maybe(vfs_obj, MP_QSTR_mount, dest);
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if (dest[0] == MP_OBJ_NULL) {
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// Input object has no mount method, assume it's a block device and try to
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// auto-detect the filesystem and create the corresponding VFS entity.
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// (At the moment we only support FAT filesystems.)
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#if MICROPY_VFS_FAT
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2019-01-14 18:14:40 -05:00
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vfs_obj = mp_fat_vfs_type.make_new(&mp_fat_vfs_type, 1, &vfs_obj, NULL);
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2017-02-08 20:03:12 -05:00
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#endif
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}
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2017-01-26 23:10:09 -05:00
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// create new object
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2017-01-27 06:40:15 -05:00
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mp_vfs_mount_t *vfs = m_new_obj(mp_vfs_mount_t);
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2017-01-26 23:10:09 -05:00
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vfs->str = mnt_str;
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vfs->len = mnt_len;
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2017-02-08 20:03:12 -05:00
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vfs->obj = vfs_obj;
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2017-01-26 23:10:09 -05:00
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vfs->next = NULL;
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// call the underlying object to do any mounting operation
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mp_vfs_proxy_call(vfs, MP_QSTR_mount, 2, (mp_obj_t*)&args);
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// check that the destination mount point is unused
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const char *path_out;
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2017-03-10 01:13:29 -05:00
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mp_vfs_mount_t *existing_mount = mp_vfs_lookup_path(mp_obj_str_get_str(pos_args[1]), &path_out);
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if (existing_mount != MP_VFS_NONE && existing_mount != MP_VFS_ROOT) {
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if (vfs->len != 1 && existing_mount->len == 1) {
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// if root dir is mounted, still allow to mount something within a subdir of root
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} else {
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// mount point in use
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mp_raise_OSError(MP_EPERM);
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}
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2017-01-26 23:10:09 -05:00
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}
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// insert the vfs into the mount table
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2017-01-27 06:40:15 -05:00
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mp_vfs_mount_t **vfsp = &MP_STATE_VM(vfs_mount_table);
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2017-01-26 23:10:09 -05:00
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while (*vfsp != NULL) {
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2017-03-10 01:13:29 -05:00
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if ((*vfsp)->len == 1) {
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// make sure anything mounted at the root stays at the end of the list
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vfs->next = *vfsp;
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break;
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}
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2017-01-26 23:10:09 -05:00
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vfsp = &(*vfsp)->next;
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}
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*vfsp = vfs;
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_KW(mp_vfs_mount_obj, 2, mp_vfs_mount);
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mp_obj_t mp_vfs_umount(mp_obj_t mnt_in) {
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// remove vfs from the mount table
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2017-01-27 06:40:15 -05:00
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mp_vfs_mount_t *vfs = NULL;
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2017-03-25 04:48:44 -04:00
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size_t mnt_len;
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2017-01-26 23:10:09 -05:00
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const char *mnt_str = NULL;
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if (MP_OBJ_IS_STR(mnt_in)) {
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mnt_str = mp_obj_str_get_data(mnt_in, &mnt_len);
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}
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2017-01-27 06:40:15 -05:00
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for (mp_vfs_mount_t **vfsp = &MP_STATE_VM(vfs_mount_table); *vfsp != NULL; vfsp = &(*vfsp)->next) {
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2017-01-26 23:10:09 -05:00
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if ((mnt_str != NULL && !memcmp(mnt_str, (*vfsp)->str, mnt_len + 1)) || (*vfsp)->obj == mnt_in) {
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vfs = *vfsp;
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*vfsp = (*vfsp)->next;
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break;
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}
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}
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if (vfs == NULL) {
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mp_raise_OSError(MP_EINVAL);
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}
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// if we unmounted the current device then set current to root
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if (MP_STATE_VM(vfs_cur) == vfs) {
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2017-01-28 23:14:15 -05:00
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MP_STATE_VM(vfs_cur) = MP_VFS_ROOT;
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2017-01-26 23:10:09 -05:00
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}
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// call the underlying object to do any unmounting operation
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mp_vfs_proxy_call(vfs, MP_QSTR_umount, 0, NULL);
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return mp_const_none;
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}
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MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_umount_obj, mp_vfs_umount);
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2017-06-07 01:29:53 -04:00
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// Note: buffering and encoding args are currently ignored
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2017-01-26 23:10:09 -05:00
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mp_obj_t mp_vfs_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_args) {
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enum { ARG_file, ARG_mode, ARG_encoding };
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static const mp_arg_t allowed_args[] = {
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{ MP_QSTR_file, MP_ARG_OBJ | MP_ARG_REQUIRED, {.u_rom_obj = MP_ROM_PTR(&mp_const_none_obj)} },
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{ MP_QSTR_mode, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_QSTR(MP_QSTR_r)} },
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2017-06-07 01:29:53 -04:00
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{ MP_QSTR_buffering, MP_ARG_INT, {.u_int = -1} },
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{ MP_QSTR_encoding, MP_ARG_OBJ, {.u_rom_obj = MP_ROM_PTR(&mp_const_none_obj)} },
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2017-01-26 23:10:09 -05:00
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};
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|
|
|
|
// 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);
|
|
|
|
|
2018-06-05 21:57:01 -04:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(args[ARG_file].u_obj, &args[ARG_file].u_obj);
|
2017-01-26 23:10:09 -05:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_open, 2, (mp_obj_t*)&args);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_KW(mp_vfs_open_obj, 0, mp_vfs_open);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_chdir(mp_obj_t path_in) {
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-03-10 01:13:29 -05:00
|
|
|
MP_STATE_VM(vfs_cur) = vfs;
|
|
|
|
if (vfs == MP_VFS_ROOT) {
|
|
|
|
// If we change to the root dir and a VFS is mounted at the root then
|
|
|
|
// we must change that VFS's current dir to the root dir so that any
|
|
|
|
// subsequent relative paths begin at the root of that VFS.
|
|
|
|
for (vfs = MP_STATE_VM(vfs_mount_table); vfs != NULL; vfs = vfs->next) {
|
|
|
|
if (vfs->len == 1) {
|
2017-11-15 21:13:24 -05:00
|
|
|
mp_obj_t root = MP_OBJ_NEW_QSTR(MP_QSTR__slash_);
|
2017-03-10 01:13:29 -05:00
|
|
|
mp_vfs_proxy_call(vfs, MP_QSTR_chdir, 1, &root);
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
} else {
|
2017-01-26 23:10:09 -05:00
|
|
|
mp_vfs_proxy_call(vfs, MP_QSTR_chdir, 1, &path_out);
|
|
|
|
}
|
|
|
|
return mp_const_none;
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_chdir_obj, mp_vfs_chdir);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_getcwd(void) {
|
2017-01-28 23:14:15 -05:00
|
|
|
if (MP_STATE_VM(vfs_cur) == MP_VFS_ROOT) {
|
2017-01-26 23:10:09 -05:00
|
|
|
return MP_OBJ_NEW_QSTR(MP_QSTR__slash_);
|
|
|
|
}
|
|
|
|
mp_obj_t cwd_o = mp_vfs_proxy_call(MP_STATE_VM(vfs_cur), MP_QSTR_getcwd, 0, NULL);
|
2017-03-10 01:13:29 -05:00
|
|
|
if (MP_STATE_VM(vfs_cur)->len == 1) {
|
|
|
|
// don't prepend "/" for vfs mounted at root
|
|
|
|
return cwd_o;
|
|
|
|
}
|
2017-01-26 23:10:09 -05:00
|
|
|
const char *cwd = mp_obj_str_get_str(cwd_o);
|
|
|
|
vstr_t vstr;
|
|
|
|
vstr_init(&vstr, MP_STATE_VM(vfs_cur)->len + strlen(cwd) + 1);
|
|
|
|
vstr_add_strn(&vstr, MP_STATE_VM(vfs_cur)->str, MP_STATE_VM(vfs_cur)->len);
|
|
|
|
if (!(cwd[0] == '/' && cwd[1] == 0)) {
|
|
|
|
vstr_add_str(&vstr, cwd);
|
|
|
|
}
|
|
|
|
return mp_obj_new_str_from_vstr(&mp_type_str, &vstr);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_0(mp_vfs_getcwd_obj, mp_vfs_getcwd);
|
|
|
|
|
2017-06-27 18:17:30 -04:00
|
|
|
mp_obj_t mp_vfs_ilistdir_it_iternext(mp_obj_t self_in) {
|
2017-05-05 09:31:51 -04:00
|
|
|
mp_vfs_ilistdir_it_t *self = MP_OBJ_TO_PTR(self_in);
|
|
|
|
if (self->is_iter) {
|
|
|
|
// continue delegating to root dir
|
|
|
|
return mp_iternext(self->cur.iter);
|
|
|
|
} else if (self->cur.vfs == NULL) {
|
|
|
|
// finished iterating mount points and no root dir is mounted
|
|
|
|
return MP_OBJ_STOP_ITERATION;
|
|
|
|
} else {
|
|
|
|
// continue iterating mount points
|
|
|
|
mp_vfs_mount_t *vfs = self->cur.vfs;
|
|
|
|
self->cur.vfs = vfs->next;
|
|
|
|
if (vfs->len == 1) {
|
|
|
|
// vfs is mounted at root dir, delegate to it
|
2017-11-15 21:13:24 -05:00
|
|
|
mp_obj_t root = MP_OBJ_NEW_QSTR(MP_QSTR__slash_);
|
2017-05-05 09:31:51 -04:00
|
|
|
self->is_iter = true;
|
|
|
|
self->cur.iter = mp_vfs_proxy_call(vfs, MP_QSTR_ilistdir, 1, &root);
|
|
|
|
return mp_iternext(self->cur.iter);
|
|
|
|
} else {
|
|
|
|
// a mounted directory
|
|
|
|
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(3, NULL));
|
|
|
|
t->items[0] = mp_obj_new_str_of_type(
|
|
|
|
self->is_str ? &mp_type_str : &mp_type_bytes,
|
|
|
|
(const byte*)vfs->str + 1, vfs->len - 1);
|
|
|
|
t->items[1] = MP_OBJ_NEW_SMALL_INT(MP_S_IFDIR);
|
|
|
|
t->items[2] = MP_OBJ_NEW_SMALL_INT(0); // no inode number
|
|
|
|
return MP_OBJ_FROM_PTR(t);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_ilistdir(size_t n_args, const mp_obj_t *args) {
|
2017-01-26 23:10:09 -05:00
|
|
|
mp_obj_t path_in;
|
|
|
|
if (n_args == 1) {
|
|
|
|
path_in = args[0];
|
|
|
|
} else {
|
|
|
|
path_in = MP_OBJ_NEW_QSTR(MP_QSTR_);
|
|
|
|
}
|
|
|
|
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-01-26 23:10:09 -05:00
|
|
|
|
2017-01-28 23:14:15 -05:00
|
|
|
if (vfs == MP_VFS_ROOT) {
|
2017-01-26 23:10:09 -05:00
|
|
|
// list the root directory
|
2017-05-05 09:31:51 -04:00
|
|
|
mp_vfs_ilistdir_it_t *iter = m_new_obj(mp_vfs_ilistdir_it_t);
|
|
|
|
iter->base.type = &mp_type_polymorph_iter;
|
|
|
|
iter->iternext = mp_vfs_ilistdir_it_iternext;
|
|
|
|
iter->cur.vfs = MP_STATE_VM(vfs_mount_table);
|
|
|
|
iter->is_str = mp_obj_get_type(path_in) == &mp_type_str;
|
|
|
|
iter->is_iter = false;
|
|
|
|
return MP_OBJ_FROM_PTR(iter);
|
2017-01-26 23:10:09 -05:00
|
|
|
}
|
|
|
|
|
2017-05-05 09:31:51 -04:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_ilistdir, 1, &path_out);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_vfs_ilistdir_obj, 0, 1, mp_vfs_ilistdir);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_listdir(size_t n_args, const mp_obj_t *args) {
|
|
|
|
mp_obj_t iter = mp_vfs_ilistdir(n_args, args);
|
|
|
|
mp_obj_t dir_list = mp_obj_new_list(0, NULL);
|
|
|
|
mp_obj_t next;
|
|
|
|
while ((next = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
|
2018-03-08 19:02:26 -05:00
|
|
|
mp_obj_list_append(dir_list, mp_obj_subscr(next, MP_OBJ_NEW_SMALL_INT(0), MP_OBJ_SENTINEL));
|
2017-05-05 09:31:51 -04:00
|
|
|
}
|
|
|
|
return dir_list;
|
2017-01-26 23:10:09 -05:00
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(mp_vfs_listdir_obj, 0, 1, mp_vfs_listdir);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_mkdir(mp_obj_t path_in) {
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-02-08 23:51:34 -05:00
|
|
|
if (vfs == MP_VFS_ROOT || (vfs != MP_VFS_NONE && !strcmp(mp_obj_str_get_str(path_out), "/"))) {
|
|
|
|
mp_raise_OSError(MP_EEXIST);
|
|
|
|
}
|
2017-01-26 23:10:09 -05:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_mkdir, 1, &path_out);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_mkdir_obj, mp_vfs_mkdir);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_remove(mp_obj_t path_in) {
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-01-26 23:10:09 -05:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_remove, 1, &path_out);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_remove_obj, mp_vfs_remove);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_rename(mp_obj_t old_path_in, mp_obj_t new_path_in) {
|
|
|
|
mp_obj_t args[2];
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *old_vfs = lookup_path(old_path_in, &args[0]);
|
|
|
|
mp_vfs_mount_t *new_vfs = lookup_path(new_path_in, &args[1]);
|
2017-01-26 23:10:09 -05:00
|
|
|
if (old_vfs != new_vfs) {
|
|
|
|
// can't rename across filesystems
|
|
|
|
mp_raise_OSError(MP_EPERM);
|
|
|
|
}
|
|
|
|
return mp_vfs_proxy_call(old_vfs, MP_QSTR_rename, 2, args);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_2(mp_vfs_rename_obj, mp_vfs_rename);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_rmdir(mp_obj_t path_in) {
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-01-26 23:10:09 -05:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_rmdir, 1, &path_out);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_rmdir_obj, mp_vfs_rmdir);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_stat(mp_obj_t path_in) {
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-02-12 20:25:43 -05:00
|
|
|
if (vfs == MP_VFS_ROOT) {
|
|
|
|
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(10, NULL));
|
2017-05-09 22:30:34 -04:00
|
|
|
t->items[0] = MP_OBJ_NEW_SMALL_INT(MP_S_IFDIR); // st_mode
|
2017-02-12 20:25:43 -05:00
|
|
|
for (int i = 1; i <= 9; ++i) {
|
|
|
|
t->items[i] = MP_OBJ_NEW_SMALL_INT(0); // dev, nlink, uid, gid, size, atime, mtime, ctime
|
|
|
|
}
|
|
|
|
return MP_OBJ_FROM_PTR(t);
|
|
|
|
}
|
2017-01-26 23:10:09 -05:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_stat, 1, &path_out);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_stat_obj, mp_vfs_stat);
|
|
|
|
|
|
|
|
mp_obj_t mp_vfs_statvfs(mp_obj_t path_in) {
|
|
|
|
mp_obj_t path_out;
|
2017-01-27 06:40:15 -05:00
|
|
|
mp_vfs_mount_t *vfs = lookup_path(path_in, &path_out);
|
2017-06-07 01:17:45 -04:00
|
|
|
if (vfs == MP_VFS_ROOT) {
|
|
|
|
// statvfs called on the root directory, see if there's anything mounted there
|
|
|
|
for (vfs = MP_STATE_VM(vfs_mount_table); vfs != NULL; vfs = vfs->next) {
|
|
|
|
if (vfs->len == 1) {
|
|
|
|
break;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
// If there's nothing mounted at root then return a mostly-empty tuple
|
|
|
|
if (vfs == NULL) {
|
|
|
|
mp_obj_tuple_t *t = MP_OBJ_TO_PTR(mp_obj_new_tuple(10, NULL));
|
|
|
|
|
|
|
|
// fill in: bsize, frsize, blocks, bfree, bavail, files, ffree, favail, flags
|
|
|
|
for (int i = 0; i <= 8; ++i) {
|
|
|
|
t->items[i] = MP_OBJ_NEW_SMALL_INT(0);
|
|
|
|
}
|
|
|
|
|
|
|
|
// Put something sensible in f_namemax
|
|
|
|
t->items[9] = MP_OBJ_NEW_SMALL_INT(MICROPY_ALLOC_PATH_MAX);
|
|
|
|
|
|
|
|
return MP_OBJ_FROM_PTR(t);
|
|
|
|
}
|
|
|
|
|
|
|
|
// VFS mounted at root so delegate the call to it
|
|
|
|
path_out = MP_OBJ_NEW_QSTR(MP_QSTR__slash_);
|
|
|
|
}
|
2017-01-26 23:10:09 -05:00
|
|
|
return mp_vfs_proxy_call(vfs, MP_QSTR_statvfs, 1, &path_out);
|
|
|
|
}
|
|
|
|
MP_DEFINE_CONST_FUN_OBJ_1(mp_vfs_statvfs_obj, mp_vfs_statvfs);
|
|
|
|
|
|
|
|
#endif // MICROPY_VFS
|