74 puffs_cc_yield(struct puffs_cc *pcc)  in puffs_cc_yield()  argument
81 	if ((~pcc->pcc_flags & (PCC_BORROWED|PCC_DONE)) == 0) {  in puffs_cc_yield()
82 		pcc->pcc_flags &= ~(PCC_BORROWED|PCC_DONE);  in puffs_cc_yield()
86 		puffs__cc_destroy(pcc, 1);  in puffs_cc_yield()
87 		setcontext(&pcc->pcc_uc_ret);  in puffs_cc_yield()
89 	pcc->pcc_flags &= ~PCC_BORROWED;  in puffs_cc_yield()
93 	if ((pcc->pcc_flags & PCC_MLCONT) == 0) {  in puffs_cc_yield()
94 		DPRINTF(("no mlcont, pcc %p\n", pcc));  in puffs_cc_yield()
95 		swapcontext(&pcc->pcc_uc, &pcc->pcc_uc_ret);  in puffs_cc_yield()
97 		DPRINTF(("mlcont, pcc %p\n", pcc));  in puffs_cc_yield()
98 		pcc->pcc_flags &= ~PCC_MLCONT;  in puffs_cc_yield()
99 		rv = puffs__cc_create(pcc->pcc_pu, puffs__theloop, &jumpcc);  in puffs_cc_yield()
102 		swapcontext(&pcc->pcc_uc, &jumpcc->pcc_uc);  in puffs_cc_yield()
103 		DPRINTF(("puffs_cc_yield: post swap pcc %p\n", pcc));  in puffs_cc_yield()
113 puffs__cc_cont(struct puffs_cc *pcc)  in puffs__cc_cont()  argument
117 	mycc = puffs_cc_getcc(pcc->pcc_pu);  in puffs__cc_cont()
118 	DPRINTF(("puffs__cc_cont: pcc %p, mycc %p\n", pcc, mycc));  in puffs__cc_cont()
125 	pcc->pcc_flags |= PCC_MLCONT;  in puffs__cc_cont()
126 	setcontext(&pcc->pcc_uc);  in puffs__cc_cont()
130 puffs_cc_continue(struct puffs_cc *pcc)  in puffs_cc_continue()  argument
134 	DPRINTF(("puffs_cc_continue: pcc %p\n", pcc));  in puffs_cc_continue()
136 		pcc->pcc_func(pcc->pcc_farg);  in puffs_cc_continue()
138 		swapcontext(&pcc->pcc_uc_ret, &pcc->pcc_uc);  in puffs_cc_continue()
159 puffs_cc_schedule(struct puffs_cc *pcc)  in puffs_cc_schedule()  argument
161 	struct puffs_usermount *pu = pcc->pcc_pu;  in puffs_cc_schedule()
164 	TAILQ_INSERT_TAIL(&pu->pu_sched, pcc, pcc_schedent);  in puffs_cc_schedule()
168 puffs_cc_getcaller(struct puffs_cc *pcc, pid_t *pid, lwpid_t *lid)  in puffs_cc_getcaller()  argument
171 	if ((pcc->pcc_flags & PCC_HASCALLER) == 0) {  in puffs_cc_getcaller()
177 		*pid = pcc->pcc_pid;  in puffs_cc_getcaller()
179 		*lid = pcc->pcc_lid;  in puffs_cc_getcaller()
188 	struct puffs_cc *volatile pcc;  in slowccalloc()  local
201 	pcc = sp;  in slowccalloc()
202 	memset(pcc, 0, sizeof(struct puffs_cc));  in slowccalloc()
211 	if (getcontext(&pcc->pcc_uc) == -1) {  in slowccalloc()
212 		munmap(pcc, stacksize);  in slowccalloc()
215 	if (getcontext(&pcc->pcc_uc_ret) == -1) {  in slowccalloc()
216 		munmap(pcc, stacksize);  in slowccalloc()
220 	return pcc;  in slowccalloc()
227 	struct puffs_cc *pcc;  in puffs__cc_create()  local
233 		pcc = slowccalloc(pu);  in puffs__cc_create()
234 		if (pcc == NULL)  in puffs__cc_create()
236 		pcc->pcc_pu = pu;  in puffs__cc_create()
237 		DPRINTF(("puffs__cc_create: allocated pcc %p\n", pcc));  in puffs__cc_create()
239 		pcc = LIST_FIRST(&pu->pu_ccmagazin);  in puffs__cc_create()
240 		assert(pcc != NULL);  in puffs__cc_create()
242 		LIST_REMOVE(pcc, pcc_rope);  in puffs__cc_create()
244 		DPRINTF(("puffs__cc_create: magazin pcc %p\n", pcc));  in puffs__cc_create()
246 	assert(pcc->pcc_pu == pu);  in puffs__cc_create()
249 		pcc->pcc_func = func;  in puffs__cc_create()
250 		pcc->pcc_farg = pcc;  in puffs__cc_create()
255 		pcc->pcc_uc.uc_link = &pcc->pcc_uc_ret;  in puffs__cc_create()
262 		st = &pcc->pcc_uc.uc_stack;  in puffs__cc_create()
263 		st->ss_sp = ((uint8_t *)(void *)pcc) + psize;  in puffs__cc_create()
276 		makecontext(&pcc->pcc_uc, (void *)func, 1, (uintptr_t)pcc);  in puffs__cc_create()
279 	*pccp = pcc;  in puffs__cc_create()
284 puffs__cc_setcaller(struct puffs_cc *pcc, pid_t pid, lwpid_t lid)  in puffs__cc_setcaller()  argument
287 	pcc->pcc_pid = pid;  in puffs__cc_setcaller()
288 	pcc->pcc_lid = lid;  in puffs__cc_setcaller()
289 	pcc->pcc_flags |= PCC_HASCALLER;  in puffs__cc_setcaller()
293 cc_free(struct puffs_cc *pcc)  in cc_free()  argument
295 	struct puffs_usermount *pu = pcc->pcc_pu;  in cc_free()
298 	DPRINTF(("invalidating pcc %p\n", pcc));  in cc_free()
300 	munmap(pcc, stacksize);  in cc_free()
304 puffs__cc_destroy(struct puffs_cc *pcc, int nonuke)  in puffs__cc_destroy()  argument
306 	struct puffs_usermount *pu = pcc->pcc_pu;  in puffs__cc_destroy()
308 	pcc->pcc_flags &= ~PCC_HASCALLER;  in puffs__cc_destroy()
309 	assert(pcc->pcc_flags == 0);  in puffs__cc_destroy()
314 		pcc->pcc_pb = NULL;  in puffs__cc_destroy()
315 		DPRINTF(("puffs__cc_destroy: storing pcc %p\n", pcc));  in puffs__cc_destroy()
316 		LIST_INSERT_HEAD(&pu->pu_ccmagazin, pcc, pcc_rope);  in puffs__cc_destroy()
319 		cc_free(pcc);  in puffs__cc_destroy()
326 	struct puffs_cc *pcc;  in puffs__cc_exit()  local
328 	while ((pcc = LIST_FIRST(&pu->pu_ccmagazin)) != NULL) {  in puffs__cc_exit()
329 		LIST_REMOVE(pcc, pcc_rope);  in puffs__cc_exit()
330 		cc_free(pcc);  in puffs__cc_exit()