diff options
Diffstat (limited to 'src/H5Dint.c')
| -rw-r--r-- | src/H5Dint.c | 65 |
1 files changed, 39 insertions, 26 deletions
diff --git a/src/H5Dint.c b/src/H5Dint.c index d3cad8f..a54333f 100644 --- a/src/H5Dint.c +++ b/src/H5Dint.c @@ -54,8 +54,8 @@ static herr_t H5D__init_type(H5F_t *file, const H5D_t *dset, hid_t type_id, static herr_t H5D__cache_dataspace_info(const H5D_t *dset); static herr_t H5D__init_space(H5F_t *file, const H5D_t *dset, const H5S_t *space); static herr_t H5D__update_oh_info(H5F_t *file, H5D_t *dset, hid_t dapl_id); -static herr_t H5D__build_file_prefix(const H5D_t *dset, hid_t dapl_id, - const char *prefix_type, char **file_prefix); +static herr_t H5D__build_file_prefix(const H5D_t *dset, H5F_prefix_open_t prefix_type, + char **file_prefix); static herr_t H5D__open_oid(H5D_t *dataset, hid_t dapl_id); static herr_t H5D__init_storage(const H5D_io_info_t *io_info, hbool_t full_overwrite, hsize_t old_dim[]); @@ -112,6 +112,10 @@ static const H5I_class_t H5I_DATASET_CLS[1] = {{ /* Flag indicating "top" of interface has been initialized */ static hbool_t H5D_top_package_initialize_s = FALSE; +/* Prefixes of VDS and external file from the environment variables + * HDF5_EXTFILE_PREFIX and HDF5_VDS_PREFIX */ +const static char *H5D_prefix_ext_env = NULL; +const static char *H5D_prefix_vds_env = NULL; /*------------------------------------------------------------------------- @@ -188,6 +192,10 @@ H5D__init_package(void) /* Mark "top" of interface as initialized, too */ H5D_top_package_initialize_s = TRUE; + /* Retrieve the prefixes of VDS and external file from the environment variable */ + H5D_prefix_vds_env = HDgetenv("HDF5_VDS_PREFIX"); + H5D_prefix_ext_env = HDgetenv("HDF5_EXTFILE_PREFIX"); + done: FUNC_LEAVE_NOAPI(ret_value) } /* end H5D__init_package() */ @@ -1045,8 +1053,7 @@ done: *-------------------------------------------------------------------------- */ static herr_t -H5D__build_file_prefix(const H5D_t *dset, hid_t dapl_id, const char *prefix_type, - char **file_prefix /*out*/) +H5D__build_file_prefix(const H5D_t *dset, H5F_prefix_open_t prefix_type, char **file_prefix /*out*/) { char *prefix = NULL; /* prefix used to look for the file */ char *filepath = NULL; /* absolute path of directory the HDF5 file is in */ @@ -1067,20 +1074,22 @@ H5D__build_file_prefix(const H5D_t *dset, hid_t dapl_id, const char *prefix_type /* XXX: Future thread-safety note - getenv is not required * to be reentrant. */ - if(HDstrcmp(prefix_type, H5D_ACS_VDS_PREFIX_NAME) == 0) - prefix = HDgetenv("HDF5_VDS_PREFIX"); - else if (HDstrcmp(prefix_type, H5D_ACS_EFILE_PREFIX_NAME) == 0) - prefix = HDgetenv("HDF5_EXTFILE_PREFIX"); - else - HGOTO_ERROR(H5E_PLIST, H5E_BADTYPE, FAIL, "prefix name is not sensible") - - if(prefix == NULL || *prefix == '\0') { - /* Set prefix to value of prefix_type property */ - if(NULL == (plist = H5P_object_verify(dapl_id, H5P_DATASET_ACCESS))) - HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID") - if(H5P_peek(plist, prefix_type, &prefix) < 0) - HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get file prefix") - } /* end if */ + if(H5F_PREFIX_VDS == prefix_type) { + prefix = (char *)H5D_prefix_vds_env; + + if(prefix == NULL || *prefix == '\0') { + if(H5CX_get_vds_prefix(&prefix) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get the prefix for vds file") + } + } else if(H5F_PREFIX_EFILE == prefix_type) { + prefix = (char *)H5D_prefix_ext_env; + + if(prefix == NULL || *prefix == '\0') { + if(H5CX_get_ext_file_prefix(&prefix) < 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTGET, FAIL, "can't get the prefix for the external file") + } + } else + HGOTO_ERROR(H5E_DATASET, H5E_BADTYPE, FAIL, "prefix name is not sensible") /* Prefix has to be checked for NULL / empty string again because the * code above might have updated it. @@ -1089,8 +1098,7 @@ H5D__build_file_prefix(const H5D_t *dset, hid_t dapl_id, const char *prefix_type /* filename is interpreted as relative to the current directory, * does not need to be expanded */ - if(NULL == (*file_prefix = (char *)H5MM_strdup(""))) - HGOTO_ERROR(H5E_RESOURCE, H5E_NOSPACE, FAIL, "memory allocation failed") + *file_prefix = NULL; } /* end if */ else { if (HDstrncmp(prefix, "${ORIGIN}", HDstrlen("${ORIGIN}")) == 0) { @@ -1285,11 +1293,11 @@ H5D__create(H5F_t *file, hid_t type_id, const H5S_t *space, hid_t dcpl_id, HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to set up flush append property") /* Set the external file prefix */ - if(H5D__build_file_prefix(new_dset, dapl_id, H5D_ACS_EFILE_PREFIX_NAME, &new_dset->shared->extfile_prefix) < 0) + if(H5D__build_file_prefix(new_dset, H5F_PREFIX_EFILE, &new_dset->shared->extfile_prefix) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize external file prefix") /* Set the VDS file prefix */ - if(H5D__build_file_prefix(new_dset, dapl_id, H5D_ACS_VDS_PREFIX_NAME, &new_dset->shared->vds_prefix) < 0) + if(H5D__build_file_prefix(new_dset, H5F_PREFIX_VDS, &new_dset->shared->vds_prefix) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize VDS prefix") /* Add the dataset to the list of opened objects in the file */ @@ -1444,11 +1452,11 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id) HGOTO_ERROR(H5E_DATASET, H5E_CANTCOPY, NULL, "can't copy path") /* Get the external file prefix */ - if(H5D__build_file_prefix(dataset, dapl_id, H5D_ACS_EFILE_PREFIX_NAME, &extfile_prefix) < 0) + if(H5D__build_file_prefix(dataset, H5F_PREFIX_EFILE, &extfile_prefix) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize external file prefix") /* Get the VDS prefix */ - if(H5D__build_file_prefix(dataset, dapl_id, H5D_ACS_VDS_PREFIX_NAME, &vds_prefix) < 0) + if(H5D__build_file_prefix(dataset, H5F_PREFIX_VDS, &vds_prefix) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize VDS prefix") /* Check if dataset was already open */ @@ -1492,8 +1500,13 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id) /* Check whether the external file prefix of the already open dataset * matches the new external file prefix */ - if(HDstrcmp(extfile_prefix, dataset->shared->extfile_prefix) != 0) - HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, NULL, "new external file prefix does not match external file prefix of already open dataset") + if(extfile_prefix && dataset->shared->extfile_prefix) { + if(HDstrcmp(extfile_prefix, dataset->shared->extfile_prefix) != 0) + HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, NULL, "new external file prefix does not match external file prefix of already open dataset") + } else { + if(extfile_prefix || dataset->shared->extfile_prefix) + HGOTO_ERROR(H5E_DATASET, H5E_CANTOPENOBJ, NULL, "new external file prefix does not match external file prefix of already open dataset") + } /* Check if the object has been opened through the top file yet */ if(H5FO_top_count(dataset->oloc.file, dataset->oloc.addr) == 0) { |