Cross Reference: /illumos-gate/usr/src/uts/common/io/idm/idm.c

Lines Matching defs:refcnt
2106 idm_refcnt_init(idm_refcnt_t *refcnt, void *referenced_obj)
2108 	bzero(refcnt, sizeof (*refcnt));
2109 	idm_refcnt_reset(refcnt);
2110 	refcnt->ir_referenced_obj = referenced_obj;
2111 	bzero(&refcnt->ir_audit_buf, sizeof (refcnt_audit_buf_t));
2112 	refcnt->ir_audit_buf.anb_max_index = REFCNT_AUDIT_BUF_MAX_REC - 1;
2113 	mutex_init(&refcnt->ir_mutex, NULL, MUTEX_DEFAULT, NULL);
2114 	cv_init(&refcnt->ir_cv, NULL, CV_DEFAULT, NULL);
2118 idm_refcnt_destroy(idm_refcnt_t *refcnt)
2123 	 * the refcnt goes to zero if ir_waiting == REF_WAIT_ASYNC)
2125 	mutex_enter(&refcnt->ir_mutex);
2126 	ASSERT(refcnt->ir_refcnt == 0);
2127 	cv_destroy(&refcnt->ir_cv);
2128 	mutex_destroy(&refcnt->ir_mutex);
2132 idm_refcnt_reset(idm_refcnt_t *refcnt)
2134 	refcnt->ir_waiting = REF_NOWAIT;
2135 	refcnt->ir_refcnt = 0;
2139 idm_refcnt_hold(idm_refcnt_t *refcnt)
2145 	ASSERT(refcnt->ir_waiting == REF_NOWAIT);
2147 	mutex_enter(&refcnt->ir_mutex);
2148 	refcnt->ir_refcnt++;
2149 	REFCNT_AUDIT(refcnt);
2150 	mutex_exit(&refcnt->ir_mutex);
2156 	idm_refcnt_t *refcnt = refcnt_void;
2158 	REFCNT_AUDIT(refcnt);
2159 	(*refcnt->ir_cb)(refcnt->ir_referenced_obj);
2163 idm_refcnt_rele(idm_refcnt_t *refcnt)
2165 	mutex_enter(&refcnt->ir_mutex);
2166 	ASSERT(refcnt->ir_refcnt > 0);
2167 	refcnt->ir_refcnt--;
2168 	REFCNT_AUDIT(refcnt);
2169 	if (refcnt->ir_waiting == REF_NOWAIT) {
2171 		mutex_exit(&refcnt->ir_mutex);
2177 	 * refcnt is 0.  Waiting on an object then later grabbing another
2180 	if (refcnt->ir_refcnt == 0) {
2181 		if (refcnt->ir_waiting == REF_WAIT_ASYNC) {
2183 			    &idm_refcnt_unref_task, refcnt, TQ_SLEEP) == NULL) {
2187 		} else if (refcnt->ir_waiting == REF_WAIT_SYNC) {
2188 			cv_signal(&refcnt->ir_cv);
2191 	mutex_exit(&refcnt->ir_mutex);
2195 idm_refcnt_rele_and_destroy(idm_refcnt_t *refcnt, idm_refcnt_cb_t *cb_func)
2197 	mutex_enter(&refcnt->ir_mutex);
2198 	ASSERT(refcnt->ir_refcnt > 0);
2199 	refcnt->ir_refcnt--;
2200 	REFCNT_AUDIT(refcnt);
2204 	 * refcnt is 0.  Waiting on an object then later grabbing another
2207 	if (refcnt->ir_refcnt == 0) {
2208 		refcnt->ir_cb = cb_func;
2209 		refcnt->ir_waiting = REF_WAIT_ASYNC;
2211 		    &idm_refcnt_unref_task, refcnt, TQ_SLEEP) == NULL) {
2216 	mutex_exit(&refcnt->ir_mutex);
2220 idm_refcnt_wait_ref(idm_refcnt_t *refcnt)
2222 	mutex_enter(&refcnt->ir_mutex);
2223 	refcnt->ir_waiting = REF_WAIT_SYNC;
2224 	REFCNT_AUDIT(refcnt);
2225 	while (refcnt->ir_refcnt != 0)
2226 		cv_wait(&refcnt->ir_cv, &refcnt->ir_mutex);
2227 	mutex_exit(&refcnt->ir_mutex);
2231 idm_refcnt_async_wait_ref(idm_refcnt_t *refcnt, idm_refcnt_cb_t *cb_func)
2233 	mutex_enter(&refcnt->ir_mutex);
2234 	refcnt->ir_waiting = REF_WAIT_ASYNC;
2235 	refcnt->ir_cb = cb_func;
2236 	REFCNT_AUDIT(refcnt);
2242 	if (refcnt->ir_refcnt == 0) {
2244 		    &idm_refcnt_unref_task, refcnt, TQ_SLEEP) == NULL) {
2250 	mutex_exit(&refcnt->ir_mutex);
2254 idm_refcnt_destroy_unref_obj(idm_refcnt_t *refcnt,
2257 	mutex_enter(&refcnt->ir_mutex);
2258 	if (refcnt->ir_refcnt == 0) {
2259 		mutex_exit(&refcnt->ir_mutex);
2260 		(*cb_func)(refcnt->ir_referenced_obj);
2263 	mutex_exit(&refcnt->ir_mutex);