diff options
Diffstat (limited to 'src/H5Dint.c')
| -rw-r--r-- | src/H5Dint.c | 40 |
1 files changed, 26 insertions, 14 deletions
diff --git a/src/H5Dint.c b/src/H5Dint.c index ae9a40e..7367613 100644 --- a/src/H5Dint.c +++ b/src/H5Dint.c @@ -43,6 +43,12 @@ /* Local Typedefs */ /******************/ +/* Type of prefix for file */ +typedef enum { + H5D_PREFIX_TYPE_UNKNOWN=0, + H5D_PREFIX_TYPE_EXT=1, + H5D_PREFIX_TYPE_VDS=2 +} H5D_prefix_type_t; /********************/ /* Local Prototypes */ @@ -54,7 +60,7 @@ static herr_t H5D__init_type(H5F_t *file, const H5D_t *dset, hid_t type_id, cons 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, H5D_prefix_type_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 +118,10 @@ 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 */ +static char *H5D_prefix_ext_env = NULL; +static char *H5D_prefix_vds_env = NULL; /*------------------------------------------------------------------------- @@ -188,6 +198,10 @@ 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() */ @@ -1080,7 +1094,7 @@ 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, H5D_prefix_type_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 */ @@ -1101,15 +1115,15 @@ 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"); + if(H5D_PREFIX_TYPE_VDS == prefix_type) { + prefix = 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(HDstrcmp(prefix_type, H5D_ACS_EFILE_PREFIX_NAME) == 0) { - prefix = HDgetenv("HDF5_EXTFILE_PREFIX"); + } else if(H5D_PREFIX_TYPE_EXT == prefix_type) { + prefix = H5D_prefix_ext_env; if(prefix == NULL || *prefix == '\0') { if(H5CX_get_ext_file_prefix(&prefix) < 0) @@ -1324,11 +1338,11 @@ 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, H5D_PREFIX_TYPE_EXT, &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, H5D_PREFIX_TYPE_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 */ @@ -1483,11 +1497,11 @@ 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, H5D_PREFIX_TYPE_EXT, &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, H5D_PREFIX_TYPE_VDS, &vds_prefix) < 0) HGOTO_ERROR(H5E_DATASET, H5E_CANTINIT, NULL, "unable to initialize VDS prefix") /* Check if dataset was already open */ @@ -1550,10 +1564,8 @@ H5D_open(const H5G_loc_t *loc, hid_t dapl_id) ret_value = dataset; done: - if(extfile_prefix) - extfile_prefix = (char *)H5MM_xfree(extfile_prefix); - if(vds_prefix) - vds_prefix = (char *)H5MM_xfree(vds_prefix); + extfile_prefix = (char *)H5MM_xfree(extfile_prefix); + vds_prefix = (char *)H5MM_xfree(vds_prefix); if(ret_value == NULL) { /* Free the location--casting away const*/ |