diff options
Diffstat (limited to 'src/H5Tref.c')
| -rw-r--r-- | src/H5Tref.c | 281 |
1 files changed, 191 insertions, 90 deletions
diff --git a/src/H5Tref.c b/src/H5Tref.c index 6f21363..56ac878 100644 --- a/src/H5Tref.c +++ b/src/H5Tref.c @@ -159,24 +159,25 @@ H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) /* Set up the function pointers to access the reference in memory */ dt->shared->u.atomic.u.r.cls = &H5T_ref_mem_g; - - } else if(dt->shared->u.atomic.u.r.rtype == H5R_OBJECT1) { + } /* end if */ + else if(dt->shared->u.atomic.u.r.rtype == H5R_OBJECT1) { /* Size in memory, disk size is different */ dt->shared->size = H5T_REF_OBJ_MEM_SIZE; dt->shared->u.atomic.prec = 8 * dt->shared->size; /* Unused for now */ dt->shared->u.atomic.u.r.cls = NULL; - - } else if(dt->shared->u.atomic.u.r.rtype == H5R_DATASET_REGION1) { + } /* end else-if */ + else if(dt->shared->u.atomic.u.r.rtype == H5R_DATASET_REGION1) { /* Size in memory, disk size is different */ dt->shared->size = H5T_REF_DSETREG_MEM_SIZE; dt->shared->u.atomic.prec = 8 * dt->shared->size; /* Unused for now */ dt->shared->u.atomic.u.r.cls = NULL; - - } + } /* end else-if */ + else + HGOTO_ERROR(H5E_DATATYPE, H5E_BADTYPE, FAIL, "invalid location") break; case H5T_LOC_DISK: /* Disk based reference datatype */ @@ -191,8 +192,18 @@ H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) if(dt->shared->u.atomic.u.r.rtype == H5R_OBJECT1) { H5F_t *f; - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (f = (H5F_t *)H5VL_object_data(file))) @@ -204,12 +215,22 @@ H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) /* Set up the function pointers to access the reference in memory */ dt->shared->u.atomic.u.r.cls = &H5T_ref_obj_disk_g; - - } else if(dt->shared->u.atomic.u.r.rtype == H5R_DATASET_REGION1) { + } /* end if */ + else if(dt->shared->u.atomic.u.r.rtype == H5R_DATASET_REGION1) { H5F_t *f; - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (f = (H5F_t *)H5VL_object_data(file))) @@ -221,8 +242,8 @@ H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) /* Set up the function pointers to access the reference in memory */ dt->shared->u.atomic.u.r.cls = &H5T_ref_dsetreg_disk_g; - - } else { + } /* end else-if */ + else { H5VL_file_cont_info_t cont_info = {H5VL_CONTAINER_INFO_VERSION, 0, 0, 0}; size_t ref_encode_size; H5R_ref_priv_t fixed_ref; @@ -249,7 +270,6 @@ H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) * on disk, so use the same functions. */ dt->shared->u.atomic.u.r.cls = &H5T_ref_disk_g; - } break; @@ -267,8 +287,7 @@ H5T__ref_set_loc(const H5T_t *dt, H5VL_object_t *file, H5T_loc_t loc) break; - case H5T_LOC_MAXLOC: - /* MAXLOC is invalid */ + case H5T_LOC_MAXLOC: /* MAXLOC is invalid */ default: HGOTO_ERROR(H5E_DATATYPE, H5E_BADRANGE, FAIL, "invalid reference datatype location") } /* end switch */ @@ -345,17 +364,16 @@ static size_t H5T__ref_mem_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, size_t H5_ATTR_UNUSED src_size, H5VL_object_t *dst_file, hbool_t *dst_copy) { - H5VL_object_t *vol_obj = NULL; + H5VL_object_t *vol_obj; /* VOL object for src ref's location */ const H5R_ref_priv_t *src_ref = (const H5R_ref_priv_t *)src_buf; - hbool_t files_equal = FALSE; - char file_name_buf_static[256]; - char *file_name_buf_dyn = NULL; - ssize_t file_name_len; - unsigned flags = 0; - size_t ret_value = 0; + hbool_t files_equal = FALSE; /* Whether src & dst references are in same file */ + char *file_name_buf_dyn = NULL; /* Pointer to dynamically allocated buffer for file name, if static buffer is too small */ + unsigned flags = 0; /* References flags */ + size_t ret_value = 0; /* Return value */ FUNC_ENTER_STATIC + /* Sanity check */ HDassert(src_buf); HDassert(src_size == H5T_REF_MEM_SIZE); @@ -364,21 +382,27 @@ H5T__ref_mem_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid location identifier") /* Set external flag if referenced file is not destination file */ - if(H5VL_file_specific(vol_obj, H5VL_FILE_IS_EQUAL, H5P_DATASET_XFER_DEFAULT, NULL, dst_file, &files_equal) < 0) + if(H5VL_file_is_same(vol_obj, dst_file, &files_equal) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOMPARE, 0, "can't check if files are equal") flags |= !files_equal ? H5R_IS_EXTERNAL : 0; /* Force re-calculating encoding size if any flags are set */ if(flags || !src_ref->encode_size) { + char file_name_buf_static[256]; /* File name */ + ssize_t file_name_len; /* Size of file name buffer */ + /* Pass the correct encoding version for the selection depending on the * file libver bounds, this is later retrieved in H5S hyper encode */ if(src_ref->type == (int8_t)H5R_DATASET_REGION2) { - /* Temporary hack to check if this is the native connector. We need to - * add a way to check if the terminal connector is native. For now this - * will break passthroughs, but it's needed for other VOL connectors to - * work. -NAF */ - if(dst_file->connector->cls->value == H5VL_NATIVE_VALUE) { - H5F_t *dst_f; + hbool_t is_native = FALSE; /* Whether the dest. file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(dst_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Set the file's libver bounds if using the native VOL connector */ + if(is_native) { + H5F_t *dst_f; /* Native file struct */ if(NULL == (dst_f = (H5F_t *)H5VL_object_data(dst_file))) HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") @@ -401,14 +425,15 @@ H5T__ref_mem_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf /* Determine encoding size */ if(H5R__encode(file_name_buf_dyn ? file_name_buf_dyn : file_name_buf_static, src_ref, NULL, &ret_value, flags) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTENCODE, 0, "unable to determine encoding size") - } else { + } /* end if */ + else { /* Can do a direct copy and skip blob decoding */ if(src_ref->type == (int8_t)H5R_OBJECT2) *dst_copy = TRUE; /* Get cached encoding size */ ret_value = src_ref->encode_size; - } + } /* end else */ done: H5MM_xfree(file_name_buf_dyn); @@ -431,17 +456,18 @@ H5T__ref_mem_read(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, size_t H5_ATTR_UNUSED src_size, H5VL_object_t *dst_file, void *dst_buf, size_t dst_size) { - H5VL_object_t *vol_obj = NULL; + H5VL_object_t *vol_obj; /* VOL object for src ref's location */ const H5R_ref_priv_t *src_ref = (const H5R_ref_priv_t *)src_buf; - hbool_t files_equal = FALSE; - char file_name_buf_static[256]; - char *file_name_buf_dyn = NULL; - ssize_t file_name_len; - unsigned flags = 0; - herr_t ret_value = SUCCEED; + hbool_t files_equal = FALSE; /* Whether src & dst references are in same file */ + char file_name_buf_static[256]; /* File name */ + char *file_name_buf_dyn = NULL; /* Pointer to dynamically allocated buffer for file name, if static buffer is too small */ + ssize_t file_name_len; /* Size of file name buffer */ + unsigned flags = 0; /* References flags */ + herr_t ret_value = SUCCEED; /* Return value */ FUNC_ENTER_STATIC + /* Sanity check */ HDassert(src_buf); HDassert(src_size == H5T_REF_MEM_SIZE); HDassert(dst_file); @@ -453,18 +479,21 @@ H5T__ref_mem_read(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_buf, HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid location identifier") /* Set external flag if referenced file is not destination file */ - if(H5VL_file_specific(vol_obj, H5VL_FILE_IS_EQUAL, H5P_DATASET_XFER_DEFAULT, NULL, dst_file, &files_equal) < 0) + if(H5VL_file_is_same(vol_obj, dst_file, &files_equal) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCOMPARE, FAIL, "can't check if files are equal") flags |= !files_equal ? H5R_IS_EXTERNAL : 0; /* Pass the correct encoding version for the selection depending on the * file libver bounds, this is later retrieved in H5S hyper encode */ if(src_ref->type == (int8_t)H5R_DATASET_REGION2) { - /* Temporary hack to check if this is the native connector. We need to - * add a way to check if the terminal connector is native. For now this - * will break passthroughs, but it's needed for other VOL connectors to - * work. -NAF */ - if(dst_file->connector->cls->value == H5VL_NATIVE_VALUE) { + hbool_t is_native = FALSE; /* Whether the dest. file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(dst_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Set the file's libver bounds if using the native VOL connector */ + if(is_native) { H5F_t *dst_f; if(NULL == (dst_f = (H5F_t *)H5VL_object_data(dst_file))) @@ -517,14 +546,25 @@ H5T__ref_mem_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size FUNC_ENTER_STATIC + /* Sanity check */ HDassert(src_file); HDassert(src_buf); HDassert(src_size); HDassert(dst_buf); HDassert(dst_size == H5T_REF_MEM_SIZE); - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) @@ -534,24 +574,29 @@ H5T__ref_mem_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size HDmemset(dst_buf, 0, dst_size); switch(src_type) { - case H5R_OBJECT1: { - size_t token_size = H5F_SIZEOF_ADDR(src_f); + case H5R_OBJECT1: + { + size_t token_size = H5F_SIZEOF_ADDR(src_f); - if(H5R__create_object((const H5VL_token_t *)src_buf, token_size, dst_ref) < 0) - HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create object reference") - } + if(H5R__create_object((const H5VL_token_t *)src_buf, token_size, dst_ref) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create object reference") + } break; - case H5R_DATASET_REGION1: { - const struct H5Tref_dsetreg *src_reg = (const struct H5Tref_dsetreg *)src_buf; - size_t token_size = H5F_SIZEOF_ADDR(src_f); - - if(H5R__create_region(&src_reg->token, token_size, src_reg->space, dst_ref) < 0) - HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create region reference") - /* create_region creates its internal copy of the space */ - if(H5S_close(src_reg->space) < 0) - HGOTO_ERROR(H5E_REFERENCE, H5E_CANTFREE, FAIL, "Cannot close dataspace") - } + + case H5R_DATASET_REGION1: + { + const struct H5Tref_dsetreg *src_reg = (const struct H5Tref_dsetreg *)src_buf; + size_t token_size = H5F_SIZEOF_ADDR(src_f); + + if(H5R__create_region(&src_reg->token, token_size, src_reg->space, dst_ref) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTCREATE, FAIL, "unable to create region reference") + + /* create_region creates its internal copy of the space */ + if(H5S_close(src_reg->space) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTFREE, FAIL, "Cannot close dataspace") + } break; + case H5R_DATASET_REGION2: /* Pass the correct encoding version for the selection depending on the * file libver bounds, this is later retrieved in H5S hyper decode */ @@ -563,12 +608,13 @@ H5T__ref_mem_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size if(H5R__decode((const unsigned char *)src_buf, &src_size, dst_ref) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, FAIL, "Cannot decode reference") break; + case H5R_BADTYPE: case H5R_MAXTYPE: default: HDassert("unknown reference type" && 0); HGOTO_ERROR(H5E_REFERENCE, H5E_UNSUPPORTED, FAIL, "internal error (unknown reference type)") - } + } /* end switch */ /* If no filename set, this is not an external reference */ if(NULL == H5R_REF_FILENAME(dst_ref)) { @@ -579,7 +625,7 @@ H5T__ref_mem_write(H5VL_object_t *src_file, const void *src_buf, size_t src_size /* Attach loc ID to reference and hold reference to it */ if(H5R__set_loc_id(dst_ref, file_id, TRUE) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTSET, FAIL, "unable to attach location id to reference") - } + } /* end if */ done: if((file_id != H5I_INVALID_HID) && (H5I_dec_ref(file_id) < 0)) @@ -713,13 +759,14 @@ H5T__ref_disk_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, const void *src_bu *dst_copy = TRUE; ret_value = src_size; - } else { + } /* end if */ + else { /* Retrieve encoded data size */ UINT32DECODE(p, ret_value); /* Add size of the header */ ret_value += H5R_ENCODE_HEADER_SIZE; - } + } /* end else */ done: FUNC_LEAVE_NOAPI(ret_value) @@ -856,8 +903,18 @@ static herr_t H5T__ref_obj_disk_isnull(const H5VL_object_t *src_file, HDassert(src_buf); HDassert(isnull); - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) @@ -896,8 +953,18 @@ H5T__ref_obj_disk_getsize(H5VL_object_t *src_file, const void H5_ATTR_UNUSED *sr HDassert(src_file); HDassert(src_buf); - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) @@ -934,8 +1001,18 @@ H5T__ref_obj_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_ HDassert(src_buf); HDassert(dst_buf); - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) @@ -946,7 +1023,7 @@ H5T__ref_obj_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t src_ /* Get object address */ if(H5R__decode_token_obj_compat((const unsigned char *)src_buf, &src_size, - (H5VL_token_t *)dst_buf, H5F_SIZEOF_ADDR(src_f)) < 0) + (H5VL_token_t *)dst_buf, H5F_SIZEOF_ADDR(src_f)) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, FAIL, "unable to get object address") done: @@ -979,8 +1056,18 @@ H5T__ref_dsetreg_disk_isnull(const H5VL_object_t *src_file, const void *src_buf, HDassert(src_buf); HDassert(isnull); - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) @@ -1018,18 +1105,23 @@ H5T__ref_dsetreg_disk_getsize(H5VL_object_t H5_ATTR_UNUSED *src_file, HDassert(src_buf); #ifndef NDEBUG - { - H5F_t *src_f; +{ + H5F_t *src_f; + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, 0, "can't query if file uses native VOL connector") - /* Retrieve file from VOL object */ - if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) - HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") + /* Must use native VOL connector for this operation */ + HDassert(is_native); - HDassert(src_size == H5T_REF_DSETREG_DISK_SIZE(src_f)); - } /* end block */ + /* Retrieve file from VOL object */ + if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) + HGOTO_ERROR(H5E_ARGS, H5E_BADTYPE, 0, "invalid VOL object") + + HDassert(src_size == H5T_REF_DSETREG_DISK_SIZE(src_f)); +} #endif /* NDEBUG */ done: @@ -1061,8 +1153,18 @@ H5T__ref_dsetreg_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t HDassert(dst_buf); HDassert(dst_size == sizeof(struct H5Tref_dsetreg)); - /* We should assert here that the terminal connector is H5VL_NATIVE once - * there is a facility to do so -NAF 2019/10/30 */ +#ifndef NDEBUG +{ + hbool_t is_native = FALSE; /* Whether the src file is using the native VOL connector */ + + /* Check if using native VOL connector */ + if(H5VL_object_is_native(src_file, &is_native) < 0) + HGOTO_ERROR(H5E_REFERENCE, H5E_CANTGET, FAIL, "can't query if file uses native VOL connector") + + /* Must use native VOL connector for this operation */ + HDassert(is_native); +} +#endif /* NDEBUG */ /* Retrieve file from VOL object */ if(NULL == (src_f = (H5F_t *)H5VL_object_data(src_file))) @@ -1072,7 +1174,7 @@ H5T__ref_dsetreg_disk_read(H5VL_object_t *src_file, const void *src_buf, size_t /* Retrieve object address and space */ if(H5R__decode_token_region_compat(src_f, (const unsigned char *)src_buf, - &src_size, &dst_reg->token, H5F_SIZEOF_ADDR(src_f), &dst_reg->space) < 0) + &src_size, &dst_reg->token, H5F_SIZEOF_ADDR(src_f), &dst_reg->space) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTDECODE, FAIL, "unable to get object address") done: @@ -1100,8 +1202,7 @@ H5T_ref_reclaim(void *elem, const H5T_t *dt) HDassert(elem); HDassert(dt && (dt->shared->type == H5T_REFERENCE)); - if(dt->shared->u.atomic.u.r.opaque - && (H5R__destroy((H5R_ref_priv_t *)elem) < 0)) + if(dt->shared->u.atomic.u.r.opaque && H5R__destroy((H5R_ref_priv_t *)elem) < 0) HGOTO_ERROR(H5E_REFERENCE, H5E_CANTFREE, FAIL, "cannot free reference") done: |