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Lines Matching defs:uprw

167 struct uprw {
176 #define UPRW(rw) struct uprw *uprw = *(struct uprw **)rw
183 	struct uprw *uprw;
188 	uprw = rump_hypermalloc(sizeof(*uprw), 0, true, "rwinit");
189 	memset(uprw, 0, sizeof(*uprw));
190 	rumpuser_cv_init(&uprw->uprw_rucv_reader);
191 	rumpuser_cv_init(&uprw->uprw_rucv_writer);
192 	memcpy(rw, &uprw, sizeof(void *));
198 	UPRW(rw);
200 	rumpuser_cv_destroy(uprw->uprw_rucv_reader);
201 	rumpuser_cv_destroy(uprw->uprw_rucv_writer);
202 	rump_hyperfree(uprw, sizeof(*uprw));
209 	UPRW(rw);
218 		rucv = uprw->uprw_rucv_reader;
219 		wp = &uprw->uprw_rwant;
221 		rucv = uprw->uprw_rucv_writer;
222 		wp = &uprw->uprw_wwant;
235 	UPRW(rw);
239 		if (uprw->uprw_owner == NULL && uprw->uprw_wwant == 0) {
240 			uprw->uprw_readers++;
245 		if (uprw->uprw_owner == NULL && uprw->uprw_readers == 0) {
246 			uprw->uprw_owner = curlwp;
258 	UPRW(rw);
260 	if (uprw->uprw_readers > 0) {
261 		uprw->uprw_readers--;
263 		KASSERT(uprw->uprw_owner == curlwp);
264 		uprw->uprw_owner = NULL;
267 	if (uprw->uprw_wwant) {
268 		rumpuser_cv_signal(uprw->uprw_rucv_writer);
269 	} else if (uprw->uprw_rwant) {
270 		rumpuser_cv_signal(uprw->uprw_rucv_reader);
277 	UPRW(rw);
279 	if (uprw->uprw_readers == 1 && uprw->uprw_owner == NULL) {
280 		uprw->uprw_readers = 0;
281 		uprw->uprw_owner = curlwp;
291 	UPRW(rw);
293 	return uprw->uprw_owner == curlwp;
299 	UPRW(rw);
301 	return uprw->uprw_readers > 0;
307 	UPRW(rw);
309 	return uprw->uprw_owner || uprw->uprw_readers;