diff options
Diffstat (limited to 'src/H5FDfamily.c')
| -rw-r--r-- | src/H5FDfamily.c | 37 |
1 files changed, 27 insertions, 10 deletions
diff --git a/src/H5FDfamily.c b/src/H5FDfamily.c index d22bc27..100e06c 100644 --- a/src/H5FDfamily.c +++ b/src/H5FDfamily.c @@ -567,6 +567,13 @@ done: * Wednesday, August 4, 1999 * * Modifications: + * Raymond Lu + * Thursday, November 18, 2004 + * When file is re-opened, member size passed in from access property + * is checked to see if it's reasonable. If there is only 1 member + * file, member size can't be smaller than current member size. + * If there are at least 2 member files, member size can only be equal + * the 1st member size. * *------------------------------------------------------------------------- */ @@ -577,7 +584,7 @@ H5FD_family_open(const char *name, unsigned flags, hid_t fapl_id, H5FD_family_t *file=NULL; H5FD_t *ret_value=NULL; char memb_name[4096], temp[4096]; - hsize_t eof; + hsize_t eof1=HADDR_UNDEF, eof2=HADDR_UNDEF; unsigned t_flags = flags & ~H5F_ACC_CREAT; H5P_genplist_t *plist; /* Property list pointer */ @@ -659,16 +666,26 @@ H5FD_family_open(const char *name, unsigned flags, hid_t fapl_id, } /* - * Check if user sets member size smaller than existing first member file size. - * Return failure if so. If the member size coming from access property list is - * 0, then set the member size to be the current first member file size. + * Get file size of the first 2 member files if exist. Check if user sets + * reasonable member size. */ - if(HADDR_UNDEF==(eof = H5FD_get_eof(file->memb[0]))) - HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, NULL, "file get eof request failed") - if(file->memb_size==0 && eof) - file->memb_size = eof; - if(eof && file->memb_size<eof) - HGOTO_ERROR(H5E_FILE, H5E_CANTOPENFILE, NULL, "trying to set member size smaller than existing member file size") + if(HADDR_UNDEF==(eof1 = H5FD_get_eof(file->memb[0]))) + HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, NULL, "file get eof1 request failed") + if(file->memb[1] && (HADDR_UNDEF==(eof2 = H5FD_get_eof(file->memb[1])))) + HGOTO_ERROR(H5E_VFL, H5E_CANTINIT, NULL, "file get eof2 request failed") + + if(eof1 && (eof2==HADDR_UNDEF || !eof2)) { + /* If there is only 1 member file, new member size can't be smaller than + * current member size. + */ + if(file->memb_size<eof1) + file->memb_size = eof1; + } else if(eof1 && eof2) { + /* If there are at least 2 member files, new member size can only be equal + * to the 1st member size + */ + file->memb_size = eof1; + } ret_value=(H5FD_t *)file; |