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-rw-r--r--src/H5FDcore.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/src/H5FDcore.c b/src/H5FDcore.c
index 43d5894..2ab04dc 100644
--- a/src/H5FDcore.c
+++ b/src/H5FDcore.c
@@ -982,9 +982,11 @@ H5FD__core_query(const H5FD_t * _file, unsigned long *flags /* out */)
*flags |= H5FD_FEAT_ALLOW_FILE_IMAGE; /* OK to use file image feature with this VFD */
*flags |= H5FD_FEAT_CAN_USE_FILE_IMAGE_CALLBACKS; /* OK to use file image callbacks with this VFD */
- /* If the backing store is open, a POSIX file handle is available */
- if(file && file->fd >= 0 && file->backing_store)
- *flags |= H5FD_FEAT_POSIX_COMPAT_HANDLE; /* VFD handle is POSIX I/O call compatible */
+ /* These feature flags are only applicable if the backing store is enabled */
+ if(file && file->fd >= 0 && file->backing_store) {
+ *flags |= H5FD_FEAT_POSIX_COMPAT_HANDLE; /* get_handle callback returns a POSIX file descriptor */
+ *flags |= H5FD_FEAT_DEFAULT_VFD_COMPATIBLE; /* VFD creates a file which can be opened with the default VFD */
+ }
} /* end if */
FUNC_LEAVE_NOAPI(SUCCEED)