static void
ps_fini(void)
{
extern void mdeg_fini(void);
/*
* Stop incoming requests from Zeus
*/
(void) ds_cap_fini(&ps_md_cap);
(void) ds_cap_fini(&ps_shutdown_cap);
(void) ds_cap_fini(&ps_panic_cap);
if (ps_suspend_enabled) {
(void) ds_cap_fini(&ps_suspend_cap);
if (ps_suspend_thread != NULL) {
mutex_enter(&ps_suspend_mutex);
ps_suspend_thread_exit = B_TRUE;
cv_signal(&ps_suspend_cv);
mutex_exit(&ps_suspend_mutex);
thread_join(ps_suspend_thread->t_did);
ps_suspend_thread = NULL;
mutex_destroy(&ps_suspend_mutex);
cv_destroy(&ps_suspend_cv);
}
}
mdeg_fini();
}
/**
* Destroy all elements in queue and queue itself. Also notifies squeue_pop
* Doesn't deallocate squeue_t
*
* @param sq synchronized queue to destroy
* @param free helper to destroy element's data
*
* @note squeue_destroy() will notify consumer but doesn't guarantee that it \
* will leave squeue_pop(). You need to check this on your own. \
* It could be easily done by joining consumer thread.
* */
void squeue_destroy(squeue_t* sq, void (*el_free)(void* obj)) {
squeue_el_t* el;
squeue_el_t* next;
mutex_lock(&sq->sq_mutex);
el = sq->sq_head;
while(el != NULL) {
next = el->s_next;
el_free(el->s_data);
mp_free(el);
el = next;
}
sq->sq_is_destroyed = B_TRUE;
cv_notify_all(&sq->sq_cv);
mutex_unlock(&sq->sq_mutex);
mutex_destroy(&sq->sq_mutex);
cv_destroy(&sq->sq_cv);
}
/*
* configuration clean up
*/
static void
uftdi_cleanup(uftdi_state_t *uf, int level)
{
ASSERT(level > 0 && level <= UFTDI_CLEANUP_LEVEL_MAX);
switch (level) {
default:
case 6:
uftdi_close_pipes(uf);
/*FALLTHROUGH*/
case 5:
usb_unregister_event_cbs(uf->uf_dip, uf->uf_usb_events);
/*FALLTHROUGH*/
case 4:
uftdi_destroy_pm_components(uf);
/*FALLTHROUGH*/
case 3:
mutex_destroy(&uf->uf_lock);
cv_destroy(&uf->uf_tx_cv);
usb_free_log_hdl(uf->uf_lh);
uf->uf_lh = NULL;
usb_free_descr_tree(uf->uf_dip, uf->uf_dev_data);
uf->uf_def_ph = NULL;
/*FALLTHROUGH*/
case 2:
usb_client_detach(uf->uf_dip, uf->uf_dev_data);
/*FALLTHROUGH*/
case 1:
kmem_free(uf, sizeof (*uf));
break;
}
}
/*ARGSUSED*/
static int
mouse8042_detach(dev_info_t *dip, ddi_detach_cmd_t cmd)
{
struct mouse_state *state;
state = ddi_get_driver_private(dip);
switch (cmd) {
case DDI_SUSPEND:
/* Ignore all data from mouse8042_intr until we fully resume */
state->ready = 0;
return (DDI_SUCCESS);
case DDI_DETACH:
ddi_remove_intr(dip, 0, state->ms_iblock_cookie);
mouse8042_dip = NULL;
cv_destroy(&state->reset_cv);
mutex_destroy(&state->reset_mutex);
mutex_destroy(&state->ms_mutex);
ddi_prop_remove_all(dip);
ddi_regs_map_free(&state->ms_handle);
ddi_remove_minor_node(dip, NULL);
kmem_free(state, sizeof (struct mouse_state));
return (DDI_SUCCESS);
default:
return (DDI_FAILURE);
}
}
void kitchen_destroy(struct kitchen *k) {
int i;
// Destroy the queue elements
while (!q_empty(k->group_list)) {
kfree(q_remhead(k->group_list));
}
// Destroy the queue
q_destroy(k->group_list);
// Destroy the cv
cv_destroy(k->kitchen_cv);
// Destroy the entrance lock
lock_destroy(k->kitchen_lock);
// Destroy the bowl locks
for (i = 0; i < NumBowls; i++) {
lock_destroy(k->bowl_locks[i]);
}
// Destroy the bowl lock array
kfree(k->bowl_locks);
// Destroy the kitchen
kfree(k);
// Clear the pointer
k = NULL;
}
/*
* Unlock this directory entry and wake anyone who was waiting for it.
*/
void
zfs_dirent_unlock(zfs_dirlock_t *dl)
{
znode_t *dzp = dl->dl_dzp;
zfs_dirlock_t **prev_dl, *cur_dl;
mutex_enter(&dzp->z_lock);
if (!dl->dl_namelock)
rw_exit(&dzp->z_name_lock);
if (dl->dl_sharecnt > 1) {
dl->dl_sharecnt--;
mutex_exit(&dzp->z_lock);
return;
}
prev_dl = &dzp->z_dirlocks;
while ((cur_dl = *prev_dl) != dl)
prev_dl = &cur_dl->dl_next;
*prev_dl = dl->dl_next;
cv_broadcast(&dl->dl_cv);
mutex_exit(&dzp->z_lock);
cv_destroy(&dl->dl_cv);
kmem_free(dl, sizeof (*dl) + dl->dl_namesize);
}
static void
udf_discstrat_finish_seq(struct udf_strat_args *args)
{
struct udf_mount *ump = args->ump;
struct strat_private *priv = PRIV(ump);
int error;
if (ump == NULL)
return;
/* stop our sheduling thread */
KASSERT(priv->run_thread == 1);
priv->run_thread = 0;
wakeup(priv->queue_lwp);
do {
error = tsleep(&priv->run_thread, PRIBIO+1,
"udfshedfin", hz);
} while (error);
/* kthread should be finished now */
/* set back old device strategy method */
VOP_IOCTL(ump->devvp, DIOCSSTRATEGY, &priv->old_strategy_setting,
FWRITE, NOCRED);
/* destroy our pool */
pool_destroy(&priv->desc_pool);
mutex_destroy(&priv->discstrat_mutex);
cv_destroy(&priv->discstrat_cv);
/* free our private space */
free(ump->strategy_private, M_UDFTEMP);
ump->strategy_private = NULL;
}
void sys_exit(int exitcode, bool is_sig){
lock_acquire(curproc->exitlock);
for (int fd = 0; fd < OPEN_MAX; fd++) {
int err;
sys_close(fd, &err);
}
curproc->exit_flag = true;
if (is_sig) {
curproc->exit_code = _MKWAIT_SIG(exitcode);
} else {
curproc->exit_code = _MKWAIT_EXIT(exitcode);
}
if (proc_ids[curproc->ppid]->exit_flag == false) {
cv_broadcast(curproc->exitcv, curproc->exitlock);
lock_release(curproc->exitlock);
} else {
/* Clean Up */
lock_release(curproc->exitlock);
cv_destroy(curproc->exitcv);
as_destroy(curproc->p_addrspace);
kfree(proc_ids[curproc->pid]->p_name);
curproc->p_addrspace = NULL;
kfree(proc_ids[curproc->pid]);
proc_ids[curproc->pid] = NULL;
lock_destroy(curproc->exitlock);
}
thread_exit();
}
int
testcall(struct lwp *l, void *uap, register_t *retval)
{
printf("test: initializing\n");
mutex_init(&test_mutex, MUTEX_DEFAULT, IPL_NONE);
cv_init(&test_cv, "testcv");
test_sih = softint_establish(SOFTINT_MPSAFE | SOFTINT_SERIAL,
test_softint, NULL);
callout_init(&test_ch, CALLOUT_MPSAFE);
callout_setfunc(&test_ch, test_callout, NULL);
printf("test: firing\n");
callout_schedule(&test_ch, hz / 10);
printf("test: waiting\n");
mutex_enter(&test_mutex);
while (!test_done) {
cv_wait(&test_cv, &test_mutex);
}
mutex_exit(&test_mutex);
printf("test: finished\n");
callout_destroy(&test_ch);
softint_disestablish(test_sih);
mutex_destroy(&test_mutex);
cv_destroy(&test_cv);
return 0;
}
void
test_cv()
{
long i;
int result;
unintr_printf("starting cv test\n");
unintr_printf("threads should print out in reverse order\n");
testcv = cv_create();
testlock = lock_create();
done = 0;
testval1 = NTHREADS - 1;
for (i = 0; i < NTHREADS; i++) {
result = thread_create((void (*)(void *))test_cv_thread,
(void *)i);
assert(thread_ret_ok(result));
}
while (__sync_fetch_and_add(&done, 0) < NTHREADS) {
/* this requires thread_yield to be working correctly */
thread_yield(THREAD_ANY);
}
cv_destroy(testcv);
unintr_printf("cv test done\n");
}
void
kstat_delete(kstat_t *ksp)
{
ekstat_t *e = (ekstat_t *)ksp;
kmutex_t *lock = ksp->ks_lock;
int lock_needs_release = 0;
// destroy the sysctl
if (ksp->ks_type == KSTAT_TYPE_NAMED) {
if (lock && MUTEX_NOT_HELD(lock)) {
mutex_enter(lock);
lock_needs_release = 1;
}
remove_child_sysctls(e);
if (lock_needs_release) {
mutex_exit(lock);
}
}
sysctl_unregister_oid(&e->e_oid);
if (e->e_vals) {
kfree(e->e_vals, sizeof(sysctl_leaf_t) * e->e_num_vals);
}
cv_destroy(&e->e_cv);
kfree(e, e->e_size);
}
pid_t
sys_waitpid(pid_t pid, int *status, int options, int *err) {
if(status == (int*) 0x0) {
return 0;
}
if(status == (int*) 0x40000000 || status == (int*) 0x80000000 || ((int)status & 3) != 0) {
*err = EFAULT;
return -1;
}
if(options != 0 && options != WNOHANG && options != WUNTRACED){
*err = EINVAL;
return -1;
}
if(pid < PID_MIN || pid > PID_MAX_256) {
*err = ESRCH;
return -1;
}
if(curproc->pid != proc_ids[pid]->ppid ){
*err = ECHILD;
return -1;
}
if(proc_ids[pid] == NULL){
*err = ESRCH;
return -1;
}
lock_acquire(proc_ids[pid]->exitlock);
if (proc_ids[pid]->exit_flag == false) {
if (options == WNOHANG) {
lock_release(proc_ids[pid]->exitlock);
return 0;
}
else {
cv_wait(proc_ids[pid]->exitcv, proc_ids[pid]->exitlock);
}
}
*status = proc_ids[pid]->exit_code;
lock_release(proc_ids[pid]->exitlock);
/* Clean Up */
lock_destroy(proc_ids[pid]->exitlock);
cv_destroy(proc_ids[pid]->exitcv);
as_destroy(proc_ids[pid]->p_addrspace);
proc_ids[pid]->p_addrspace = NULL;
kfree(proc_ids[pid]->p_name);
kfree(proc_ids[pid]);
proc_ids[pid] = NULL;
return pid;
}
void
iscsit_sess_destroy(iscsit_sess_t *ist)
{
idm_refcnt_destroy(&ist->ist_refcnt);
if (ist->ist_initiator_name)
kmem_free(ist->ist_initiator_name,
strlen(ist->ist_initiator_name) + 1);
if (ist->ist_initiator_alias)
kmem_free(ist->ist_initiator_alias,
strlen(ist->ist_initiator_alias) + 1);
if (ist->ist_target_name)
kmem_free(ist->ist_target_name,
strlen(ist->ist_target_name) + 1);
if (ist->ist_target_alias)
kmem_free(ist->ist_target_alias,
strlen(ist->ist_target_alias) + 1);
avl_destroy(&ist->ist_task_list);
kmem_free(ist->ist_rxpdu_queue, sizeof (iscsit_cbuf_t));
list_destroy(&ist->ist_conn_list);
list_destroy(&ist->ist_events);
cv_destroy(&ist->ist_cv);
mutex_destroy(&ist->ist_mutex);
mutex_destroy(&ist->ist_sn_mutex);
kmem_free(ist, sizeof (*ist));
}
static int
adb_kbd_detach(device_t dev)
{
struct adb_kbd_softc *sc;
keyboard_t *kbd;
sc = device_get_softc(dev);
adb_set_autopoll(dev,0);
callout_stop(&sc->sc_repeater);
mtx_lock(&sc->sc_mutex);
kbd = kbd_get_keyboard(kbd_find_keyboard(KBD_DRIVER_NAME,
device_get_unit(dev)));
kbdd_disable(kbd);
#ifdef KBD_INSTALL_CDEV
kbd_detach(kbd);
#endif
kbdd_term(kbd);
mtx_unlock(&sc->sc_mutex);
mtx_destroy(&sc->sc_mutex);
cv_destroy(&sc->sc_cv);
return (0);
}
/* ARGSUSED */
static int
fifo_close(void *v)
{
struct vop_close_args /* {
struct vnode *a_vp;
int a_fflag;
kauth_cred_t a_cred;
struct lwp *a_l;
} */ *ap = v;
struct vnode *vp;
struct fifoinfo *fip;
struct socket *wso, *rso;
int isrevoke;
vp = ap->a_vp;
fip = vp->v_fifoinfo;
isrevoke = (ap->a_fflag & (FREAD | FWRITE | FNONBLOCK)) == FNONBLOCK;
wso = fip->fi_writesock;
rso = fip->fi_readsock;
solock(wso);
if (isrevoke) {
if (fip->fi_readers != 0) {
fip->fi_readers = 0;
socantsendmore(wso);
}
if (fip->fi_writers != 0) {
fip->fi_writers = 0;
socantrcvmore(rso);
}
} else {
if ((ap->a_fflag & FREAD) && --fip->fi_readers == 0)
socantsendmore(wso);
if ((ap->a_fflag & FWRITE) && --fip->fi_writers == 0)
socantrcvmore(rso);
}
if ((fip->fi_readers + fip->fi_writers) == 0) {
sounlock(wso);
(void) soclose(rso);
(void) soclose(wso);
cv_destroy(&fip->fi_rcv);
cv_destroy(&fip->fi_wcv);
kmem_free(fip, sizeof(*fip));
vp->v_fifoinfo = NULL;
} else
sounlock(wso);
return (0);
}
void
dsl_pool_close(dsl_pool_t *dp)
{
/*
* Drop our references from dsl_pool_open().
*
* Since we held the origin_snap from "syncing" context (which
* includes pool-opening context), it actually only got a "ref"
* and not a hold, so just drop that here.
*/
if (dp->dp_origin_snap != NULL)
dsl_dataset_rele(dp->dp_origin_snap, dp);
if (dp->dp_mos_dir != NULL)
dsl_dir_rele(dp->dp_mos_dir, dp);
if (dp->dp_free_dir != NULL)
dsl_dir_rele(dp->dp_free_dir, dp);
if (dp->dp_leak_dir != NULL)
dsl_dir_rele(dp->dp_leak_dir, dp);
if (dp->dp_root_dir != NULL)
dsl_dir_rele(dp->dp_root_dir, dp);
bpobj_close(&dp->dp_free_bpobj);
bpobj_close(&dp->dp_obsolete_bpobj);
/* undo the dmu_objset_open_impl(mos) from dsl_pool_open() */
if (dp->dp_meta_objset != NULL)
dmu_objset_evict(dp->dp_meta_objset);
txg_list_destroy(&dp->dp_dirty_datasets);
txg_list_destroy(&dp->dp_dirty_zilogs);
txg_list_destroy(&dp->dp_sync_tasks);
txg_list_destroy(&dp->dp_dirty_dirs);
taskq_destroy(dp->dp_zil_clean_taskq);
taskq_destroy(dp->dp_sync_taskq);
/*
* We can't set retry to TRUE since we're explicitly specifying
* a spa to flush. This is good enough; any missed buffers for
* this spa won't cause trouble, and they'll eventually fall
* out of the ARC just like any other unused buffer.
*/
arc_flush(dp->dp_spa, FALSE);
mmp_fini(dp->dp_spa);
txg_fini(dp);
dsl_scan_fini(dp);
dmu_buf_user_evict_wait();
rrw_destroy(&dp->dp_config_rwlock);
mutex_destroy(&dp->dp_lock);
cv_destroy(&dp->dp_spaceavail_cv);
taskq_destroy(dp->dp_iput_taskq);
if (dp->dp_blkstats != NULL) {
mutex_destroy(&dp->dp_blkstats->zab_lock);
vmem_free(dp->dp_blkstats, sizeof (zfs_all_blkstats_t));
}
kmem_free(dp, sizeof (dsl_pool_t));
}
void
sleepq_finish(sleepq_t *sq)
{
if ( --initialized_count == 0 ) {
mutex_destroy(&sq_mtx);
cv_destroy(&sq_cv);
}
}
/* ARGSUSED */
static void
kcf_sreq_cache_destructor(void *buf, void *cdrarg)
{
kcf_sreq_node_t *sreq = (kcf_sreq_node_t *)buf;
mutex_destroy(&sreq->sn_lock);
cv_destroy(&sreq->sn_cv);
}
void whalemating_cleanup() {
lock_destroy(male_lock);
lock_destroy(female_lock);
lock_destroy(match_maker_lock);
lock_destroy(thread_count_lock);
cv_destroy(thread_count_cv);
return;
}
/*ARGSUSED*/
static void
taskq_ent_destructor(void *arg, void *obj)
{
taskq_ent_t *tqe = obj;
ASSERT(tqe->tqent_thread == NULL);
cv_destroy(&tqe->tqent_cv);
}
/*
* xpvtap_drv_fini()
*/
static void
xpvtap_drv_fini(xpvtap_state_t *state)
{
xpvtap_user_fini(state);
cv_destroy(&state->bt_open.bo_exit_cv);
mutex_destroy(&state->bt_open.bo_mutex);
(void) ddi_soft_state_free(xpvtap_statep, state->bt_instance);
}
void
ipmi_shutdown(struct ipmi_softc *sc)
{
taskq_destroy(sc->ipmi_kthread);
cv_destroy(&sc->ipmi_request_added);
mutex_destroy(&sc->ipmi_lock);
}
void whalemating_cleanup() {
sem_destroy(male_sem);
sem_destroy(female_sem);
lock_destroy(hold);
cv_destroy(mate_cv);
return;
}
/*
* Tear down a firm_event queue.
*/
void
ev_fini(struct evvar *ev)
{
cv_destroy(&ev->ev_cv);
seldestroy(&ev->ev_sel);
kmem_free(ev->ev_q, (size_t)EV_QSIZE * sizeof(struct firm_event));
}
static void
nukepark(void *obj, void *privdata)
{
struct puffs_msgpark *park = obj;
cv_destroy(&park->park_cv);
lockuninit(&park->park_mtx);
}
void
npf_worker_sysfini(void)
{
lwp_t *l = worker_lwp;
/* Notify the worker and wait for the exit. */
mutex_enter(&worker_lock);
worker_lwp = NULL;
cv_broadcast(&worker_cv);
mutex_exit(&worker_lock);
kthread_join(l);
/* LWP has exited, destroy the structures. */
cv_destroy(&worker_cv);
cv_destroy(&worker_event_cv);
mutex_destroy(&worker_lock);
}
void
pppt_task_free(pppt_task_t *ptask)
{
mutex_enter(&ptask->pt_mutex);
mutex_destroy(&ptask->pt_mutex);
cv_destroy(&ptask->pt_cv);
kmem_free(ptask, sizeof (pppt_task_t) + sizeof (pppt_buf_t) +
sizeof (stmf_data_buf_t));
}
/*
* smb_net_txl_destructor
*
* Transmit list destructor
*/
void
smb_net_txl_destructor(smb_txlst_t *txl)
{
ASSERT(txl->tl_magic == SMB_TXLST_MAGIC);
txl->tl_magic = 0;
cv_destroy(&txl->tl_wait_cv);
mutex_destroy(&txl->tl_mutex);
}
/*
* Clean up a pidinfo structure.
*/
static
void
pidinfo_destroy(struct pidinfo *pi)
{
KASSERT(pi->pi_exited == true);
KASSERT(pi->pi_ppid == INVALID_PID);
cv_destroy(pi->pi_cv);
kfree(pi);
}
void
soput(struct socket *so)
{
#if 0
KASSERT(!cv_has_waiters(&so->so_cv));
KASSERT(!cv_has_waiters(&so->so_rcv.sb_cv));
KASSERT(!cv_has_waiters(&so->so_snd.sb_cv));
seldestroy(&so->so_rcv.sb_sel);
seldestroy(&so->so_snd.sb_sel);
mutex_obj_free(so->so_lock);
cv_destroy(&so->so_cv);
cv_destroy(&so->so_rcv.sb_cv);
cv_destroy(&so->so_snd.sb_cv);
#endif
pool_cache_put(socket_cache, so);
}
