diff options
Diffstat (limited to 'src/H5FDfamily.c')
| -rw-r--r-- | src/H5FDfamily.c | 52 |
1 files changed, 49 insertions, 3 deletions
diff --git a/src/H5FDfamily.c b/src/H5FDfamily.c index a71fd64..00a98db 100644 --- a/src/H5FDfamily.c +++ b/src/H5FDfamily.c @@ -77,6 +77,7 @@ static herr_t H5FD_family_query(const H5FD_t *_f1, unsigned long *flags); static haddr_t H5FD_family_get_eoa(H5FD_t *_file); static herr_t H5FD_family_set_eoa(H5FD_t *_file, haddr_t eoa); static haddr_t H5FD_family_get_eof(H5FD_t *_file); +static herr_t H5FD_family_get_handle(H5FD_t *_file, hid_t fapl, void** file_handle); static herr_t H5FD_family_read(H5FD_t *_file, H5FD_mem_t type, hid_t dxpl_id, haddr_t addr, size_t size, void *_buf/*out*/); static herr_t H5FD_family_write(H5FD_t *_file, H5FD_mem_t type, hid_t dxpl_id, haddr_t addr, @@ -107,6 +108,7 @@ static const H5FD_class_t H5FD_family_g = { H5FD_family_get_eoa, /*get_eoa */ H5FD_family_set_eoa, /*set_eoa */ H5FD_family_get_eof, /*get_eof */ + H5FD_family_get_handle, /*get_handle */ H5FD_family_read, /*read */ H5FD_family_write, /*write */ H5FD_family_flush, /*flush */ @@ -500,7 +502,7 @@ H5FD_family_open(const char *name, unsigned flags, hid_t fapl_id, char memb_name[4096], temp[4096]; hsize_t eof; unsigned t_flags = flags & ~H5F_ACC_CREAT; - H5P_genplist_t *plist; /* Property list pointer */ + H5P_genplist_t *plist; /* Property list pointer */ FUNC_ENTER_NOAPI(H5FD_family_open, NULL); @@ -893,6 +895,50 @@ done: /*------------------------------------------------------------------------- + * Function: H5FD_family_get_handle + * + * Purpose: Returns the file handle of FAMILY file driver. + * + * Returns: Non-negative if succeed or negative if fails. + * + * Programmer: Raymond Lu + * Sept. 16, 2002 + * + * Modifications: + * + *------------------------------------------------------------------------- + */ +static herr_t +H5FD_family_get_handle(H5FD_t *_file, hid_t fapl, void** file_handle) +{ + H5FD_family_t *file = (H5FD_family_t *)_file; + H5P_genplist_t *plist; + hsize_t offset; + int memb; + herr_t ret_value; + + FUNC_ENTER_NOAPI(H5FD_family_get_handle, FAIL); + + /* Get the plist structure and family offset */ + if(H5P_DEFAULT == fapl) + fapl = H5Pcreate(H5P_FILE_ACCESS); + if(NULL == (plist = H5P_object_verify(fapl, H5P_FILE_ACCESS))) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "can't find object for ID"); + if(H5P_get(plist, H5F_ACS_FAMILY_OFFSET_NAME, &offset) < 0) + HGOTO_ERROR(H5E_PLIST, H5E_CANTGET, FAIL, "can't get offset for family driver"); + + if(offset>(file->memb_size*file->nmembs)) + HGOTO_ERROR(H5E_ATOM, H5E_BADATOM, FAIL, "offset is bigger than file size"); + memb = (int)(offset/file->memb_size); + + ret_value = H5FD_get_vfd_handle(file->memb[memb], fapl, file_handle); + +done: + FUNC_LEAVE(ret_value); +} + + +/*------------------------------------------------------------------------- * Function: H5FD_family_read * * Purpose: Reads SIZE bytes of data from FILE beginning at address ADDR @@ -922,8 +968,8 @@ H5FD_family_read(H5FD_t *_file, H5FD_mem_t type, hid_t dxpl_id, haddr_t addr, si haddr_t sub; size_t req; hsize_t tempreq; - H5P_genplist_t *plist; /* Property list pointer */ - herr_t ret_value=SUCCEED; /* Return value */ + H5P_genplist_t *plist; /* Property list pointer */ + herr_t ret_value=SUCCEED; /* Return value */ FUNC_ENTER_NOAPI(H5FD_family_read, FAIL); |