232 void jpc_pi_destroy(jpc_pi_t *pi);
235 int jpc_pi_addpchg(jpc_pi_t *pi, jpc_pocpchg_t *pchg);
238 int jpc_pi_init(jpc_pi_t *pi);
241 int jpc_pi_begin(jpc_pi_t *pi);
244 int jpc_pi_next(jpc_pi_t *pi);
247 #define	jpc_pi_getind(pi)	((pi)->pktno)  argument
250 #define jpc_pi_cmptno(pi)	(assert(pi->valid), (pi)->compno)  argument
253 #define jpc_pi_rlvlno(pi)	(assert(pi->valid), (pi)->rlvlno)  argument
256 #define jpc_pi_lyrno(pi)	(assert(pi->valid), (pi)->lyrno)  argument
259 #define jpc_pi_prcno(pi)	(assert(pi->valid), (pi)->prcno)  argument
262 #define jpc_pi_prg(pi)	(assert(pi->valid), (pi)->pchg->prgord)  argument