extmod/vfs: Support opening a file descriptor (int) with VfsPosix.

Fixes issue #3865.
This commit is contained in:
Damien George 2018-07-03 13:02:12 +10:00
parent 349d8e1324
commit a3c3dbd955
1 changed files with 11 additions and 0 deletions

View File

@ -38,6 +38,10 @@
#include "extmod/vfs_fat.h"
#endif
#if MICROPY_VFS_POSIX
#include "extmod/vfs_posix.h"
#endif
// For mp_vfs_proxy_call, the maximum number of additional args that can be passed.
// A fixed maximum size is used to avoid the need for a costly variable array.
#define PROXY_MAX_ARGS (2)
@ -264,6 +268,13 @@ mp_obj_t mp_vfs_open(size_t n_args, const mp_obj_t *pos_args, mp_map_t *kw_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 MICROPY_VFS_POSIX
// If the file is an integer then delegate straight to the POSIX handler
if (MP_OBJ_IS_SMALL_INT(args[ARG_file].u_obj)) {
return mp_vfs_posix_file_open(&mp_type_textio, args[ARG_file].u_obj, args[ARG_mode].u_obj);
}
#endif
mp_vfs_mount_t *vfs = lookup_path(args[ARG_file].u_obj, &args[ARG_file].u_obj);
return mp_vfs_proxy_call(vfs, MP_QSTR_open, 2, (mp_obj_t*)&args);
}