py: Make stream seek correctly check for ioctl fn; add seek for textio.
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@ -382,7 +382,7 @@ mp_obj_t mp_stream_unbuffered_iter(mp_obj_t self) {
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STATIC mp_obj_t stream_seek(mp_uint_t n_args, const mp_obj_t *args) {
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struct _mp_obj_base_t *o = (struct _mp_obj_base_t *)args[0];
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if (o->type->stream_p == NULL || o->type->stream_p->read == NULL) {
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if (o->type->stream_p == NULL || o->type->stream_p->ioctl == NULL) {
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// CPython: io.UnsupportedOperation, OSError subclass
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nlr_raise(mp_obj_new_exception_msg(&mp_type_OSError, "Operation not supported"));
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}
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@ -260,6 +260,7 @@ const mp_obj_type_t mp_type_fileio = {
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STATIC const mp_stream_p_t textio_stream_p = {
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.read = file_obj_read,
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.write = file_obj_write,
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.ioctl = file_obj_ioctl,
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.is_text = true,
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};
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@ -10,3 +10,11 @@ print(f.read(20))
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print(f.seek(0, 0))
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print(f.read(5))
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f.close()
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# test text mode
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f = open("io/data/file1", "rt")
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print(f.seek(6))
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print(f.read(5))
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f.close()
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@ -240,6 +240,7 @@ const mp_obj_type_t mp_type_fileio = {
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STATIC const mp_stream_p_t textio_stream_p = {
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.read = fdfile_read,
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.write = fdfile_write,
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.ioctl = fdfile_ioctl,
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.is_text = true,
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};
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