diff options
Diffstat (limited to 'src/H5Fsuper.c')
| -rw-r--r-- | src/H5Fsuper.c | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/src/H5Fsuper.c b/src/H5Fsuper.c index 70e0954..69c7a8d 100644 --- a/src/H5Fsuper.c +++ b/src/H5Fsuper.c @@ -466,6 +466,16 @@ H5F_super_read(H5F_t *f, hid_t dxpl_id, H5G_loc_t *root_loc) if(H5FD_sb_decode(lf, drv_name, p) < 0) HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, FAIL, "unable to decode driver information") } /* end if */ + else + /* This flag is false only if a file was created with v1.6 library or + * before and no driver info was saved in the superblock. When the file is + * closed and superblock is written to the file, v1.8 library or after + * doesn't write the driver info in the superblock. Otherwise, the newly + * added driver block will overwrite the (meta)data right after the + * superblock. SLU - 2009/3/24 + */ + shared->write_driver = FALSE; + } /* end if */ else { haddr_t root_addr; /* Address of root group */ @@ -934,7 +944,7 @@ H5F_super_write(H5F_t *f, hid_t dxpl_id) /* Encode the driver information block. */ H5_ASSIGN_OVERFLOW(driver_size, H5FD_sb_size(f->shared->lf), hsize_t, size_t); - if(driver_size > 0) { + if(driver_size > 0 && f->shared->write_driver) { char driver_name[9]; /* Name of driver, for driver info block */ uint8_t *dbuf = p; /* Pointer to beginning of driver info */ |