diff options
Diffstat (limited to 'src/H5D.c')
| -rw-r--r-- | src/H5D.c | 24 |
1 files changed, 23 insertions, 1 deletions
@@ -407,7 +407,29 @@ H5D_term_interface(void) if (interface_initialize_g) { if ((n=H5I_nmembers(H5I_DATASET))) { - H5I_clear_group(H5I_DATASET, FALSE); + /* The dataset API uses the "force" flag set to true because it + * is using the "file objects" (H5FO) API functions to track open + * objects in the file. Using the H5FO code means that dataset + * IDs can have reference counts >1, when an existing dataset is + * opened more than once. However, the H5I code does not attempt + * to close objects with reference counts>1 unless the "force" flag + * is set to true. + * + * At some point (probably after the group and datatypes use the + * the H5FO code), the H5FO code might need to be switched around + * to storing pointers to the objects being tracked (H5D_t, H5G_t, + * etc) and reference count those itself instead of relying on the + * reference counting in the H5I layer. Then, the "force" flag can + * be put back to false. + * + * Setting the "force" flag to true for all the interfaces won't + * work because the "file driver" (H5FD) APIs use the H5I reference + * counting to avoid closing a file driver out from underneath an + * open file... + * + * QAK - 5/13/03 + */ + H5I_clear_group(H5I_DATASET, TRUE); } else { H5I_destroy_group(H5I_DATASET); interface_initialize_g = 0; |