static void
KALLOC_ZINFO_SFREE(vm_size_t bytes)
{
thread_t thr = current_thread();
task_t task;
zinfo_usage_t zinfo;
ledger_credit(thr->t_ledger, task_ledgers.tkm_shared, bytes);
if (kalloc_fake_zone_index != -1 &&
(task = thr->task) != NULL && (zinfo = task->tkm_zinfo) != NULL)
zinfo[kalloc_fake_zone_index].free += bytes;
}
nw_result mk_connection_accept(nw_ep ep, nw_buffer_t msg,
nw_ep_t new_epp) {
nw_result rc;
nw_pv_t pv;
nw_lock();
if (ep >= MAX_EP || (pv = hect[ep].pv) == NULL) {
rc = NW_BAD_EP;
} else {
while (pv != NULL && pv->owner != current_task())
pv = pv->next;
if (pv == NULL) {
rc = NW_PROT_VIOLATION;
} else if ((char *) msg < pv->buf_start ||
(char *) msg + sizeof(nw_buffer_s) > pv->buf_end ||
!msg->buf_used ||
(char *) msg + msg->buf_length > pv->buf_end) {
rc = NW_BAD_BUFFER;
} else if (new_epp != NULL &&
(invalid_user_access(current_task()->map, (vm_offset_t) new_epp,
(vm_offset_t) new_epp + sizeof(nw_ep) - 1,
VM_PROT_READ | VM_PROT_WRITE) ||
(*new_epp != 0 && *new_epp != ep))) {
rc = NW_INVALID_ARGUMENT;
} else {
rc = (*(devct[NW_DEVICE(ect[ep].conn->peer.rem_addr_1)].entry->accept))
(ep, msg, new_epp);
if (rc == NW_SYNCH) {
hect[ep].sig_waiter = current_thread();
assert_wait(0, TRUE);
current_thread()->nw_ep_waited = NULL;
simple_unlock(&nw_simple_lock);
thread_block(mk_return);
}
}
}
nw_unlock();
return rc;
}
kern_return_t
act_set_state_from_user(
thread_t thread,
int flavor,
thread_state_t state,
mach_msg_type_number_t count)
{
if (thread == current_thread())
return (KERN_INVALID_ARGUMENT);
return (thread_set_state_from_user(thread, flavor, state, count));
}
static void
panic_display_process_name(void) {
/* because of scoping issues len(p_comm) from proc_t is hard coded here */
char proc_name[17] = "Unknown";
task_t ctask = 0;
void *cbsd_info = 0;
if (ml_nofault_copy((vm_offset_t)¤t_thread()->task, (vm_offset_t) &ctask, sizeof(task_t)) == sizeof(task_t))
if(ml_nofault_copy((vm_offset_t)&ctask->bsd_info, (vm_offset_t)&cbsd_info, sizeof(cbsd_info)) == sizeof(cbsd_info))
if (cbsd_info && (ml_nofault_copy((vm_offset_t) proc_name_address(cbsd_info), (vm_offset_t) &proc_name, sizeof(proc_name)) > 0))
proc_name[sizeof(proc_name) - 1] = '\0';
kdb_printf("\nBSD process name corresponding to current thread: %s\n", proc_name);
}
void
mach_msg_continue(void)
{
ipc_thread_t thread = current_thread();
task_t task = thread->task;
ipc_space_t space = task->itk_space;
vm_map_t map = task->map;
mach_msg_header_t *msg = thread->ith_msg;
mach_msg_size_t rcv_size = thread->ith_rcv_size;
ipc_object_t object = thread->ith_object;
ipc_mqueue_t mqueue = thread->ith_mqueue;
ipc_kmsg_t kmsg;
mach_port_seqno_t seqno;
mach_msg_return_t mr;
mr = ipc_mqueue_receive(mqueue, MACH_MSG_OPTION_NONE,
MACH_MSG_SIZE_MAX, MACH_MSG_TIMEOUT_NONE,
TRUE, mach_msg_continue, &kmsg, &seqno);
/* mqueue is unlocked */
ipc_object_release(object);
if (mr != MACH_MSG_SUCCESS) {
thread_syscall_return(mr);
/*NOTREACHED*/
}
kmsg->ikm_header.msgh_seqno = seqno;
if (kmsg->ikm_header.msgh_size > rcv_size) {
ipc_kmsg_copyout_dest(kmsg, space);
(void) ipc_kmsg_put(msg, kmsg, sizeof *msg);
thread_syscall_return(MACH_RCV_TOO_LARGE);
/*NOTREACHED*/
}
mr = ipc_kmsg_copyout(kmsg, space, map, MACH_PORT_NULL);
if (mr != MACH_MSG_SUCCESS) {
if ((mr &~ MACH_MSG_MASK) == MACH_RCV_BODY_ERROR) {
(void) ipc_kmsg_put(msg, kmsg,
kmsg->ikm_header.msgh_size);
} else {
ipc_kmsg_copyout_dest(kmsg, space);
(void) ipc_kmsg_put(msg, kmsg, sizeof *msg);
}
thread_syscall_return(mr);
/*NOTREACHED*/
}
mr = ipc_kmsg_put(msg, kmsg, kmsg->ikm_header.msgh_size);
thread_syscall_return(mr);
/*NOTREACHED*/
}
/*
* Routine: lck_mtx_lock_acquire
*
* Invoked on acquiring the mutex when there is
* contention.
*
* Returns the current number of waiters.
*
* Called with the interlock locked.
*/
int
lck_mtx_lock_acquire(
lck_mtx_t *lck)
{
thread_t thread = current_thread();
lck_mtx_t *mutex;
if (lck->lck_mtx_tag != LCK_MTX_TAG_INDIRECT)
mutex = lck;
else
mutex = &lck->lck_mtx_ptr->lck_mtx;
if (thread->pending_promoter[thread->pending_promoter_index] == mutex) {
thread->pending_promoter[thread->pending_promoter_index] = NULL;
if (thread->pending_promoter_index > 0)
thread->pending_promoter_index--;
mutex->lck_mtx_waiters--;
}
if (mutex->lck_mtx_waiters > 0) {
integer_t priority = mutex->lck_mtx_pri;
spl_t s = splsched();
thread_lock(thread);
thread->promotions++;
thread->sched_flags |= TH_SFLAG_PROMOTED;
if (thread->sched_pri < priority) {
KERNEL_DEBUG_CONSTANT(
MACHDBG_CODE(DBG_MACH_SCHED,MACH_PROMOTE) | DBG_FUNC_NONE,
thread->sched_pri, priority, 0, lck, 0);
/* Do not promote past promotion ceiling */
assert(priority <= MAXPRI_PROMOTE);
set_sched_pri(thread, priority);
}
thread_unlock(thread);
splx(s);
}
else
mutex->lck_mtx_pri = 0;
#if CONFIG_DTRACE
if (lockstat_probemap[LS_LCK_MTX_LOCK_ACQUIRE] || lockstat_probemap[LS_LCK_MTX_EXT_LOCK_ACQUIRE]) {
if (lck->lck_mtx_tag != LCK_MTX_TAG_INDIRECT) {
LOCKSTAT_RECORD(LS_LCK_MTX_LOCK_ACQUIRE, lck, 0);
} else {
LOCKSTAT_RECORD(LS_LCK_MTX_EXT_LOCK_ACQUIRE, lck, 0);
}
}
#endif
return (mutex->lck_mtx_waiters);
}
int
dtrace_getustackdepth(void)
{
thread_t thread = current_thread();
x86_saved_state_t *regs;
user_addr_t pc, sp, fp;
int n = 0;
boolean_t is64Bit = proc_is64bit(current_proc());
if (thread == NULL)
return 0;
if (DTRACE_CPUFLAG_ISSET(CPU_DTRACE_FAULT))
return (-1);
regs = (x86_saved_state_t *)find_user_regs(thread);
if (regs == NULL)
return 0;
if (is64Bit) {
pc = regs->ss_64.isf.rip;
sp = regs->ss_64.isf.rsp;
fp = regs->ss_64.rbp;
} else {
pc = regs->ss_32.eip;
sp = regs->ss_32.uesp;
fp = regs->ss_32.ebp;
}
if (dtrace_adjust_stack(NULL, NULL, &pc, sp) == 1) {
/*
* we would have adjusted the stack if we had
* supplied one (that is what rc == 1 means).
* Also, as a side effect, the pc might have
* been fixed up, which is good for calling
* in to dtrace_getustack_common.
*/
n++;
}
/*
* Note that unlike ppc, the x86 code does not use
* CPU_DTRACE_USTACK_FP. This is because x86 always
* traces from the fp, even in syscall/profile/fbt
* providers.
*/
n += dtrace_getustack_common(NULL, 0, pc, fp);
return (n);
}
/*
* Set the Universal (Posix) time. Privileged call.
*/
kern_return_t
host_set_time(
host_t host,
time_value_t new_time)
{
spl_t s;
if (host == HOST_NULL)
return(KERN_INVALID_HOST);
#if NCPUS > 1
thread_bind(current_thread(), master_processor);
mp_disable_preemption();
if (current_processor() != master_processor) {
mp_enable_preemption();
thread_block((void (*)(void)) 0);
} else {
mp_enable_preemption();
}
#endif /* NCPUS > 1 */
s = splhigh();
time = new_time;
update_mapped_time(&time);
#if PTIME_MACH_RT
rtc_gettime_interrupts_disabled((tvalspec_t *)&last_utime_tick);
#endif /* PTIME_MACH_RT */
#if 0
(void)bbc_settime((time_value_t *)&time);
#endif
splx(s);
#if NCPUS > 1
thread_bind(current_thread(), PROCESSOR_NULL);
#endif /* NCPUS > 1 */
return (KERN_SUCCESS);
}
/**
* act_thread_catt
*
* Restore the current thread context, used for the internal uthread structure.
* (We should also restore VFP state...)
*/
void act_thread_catt(void *ctx)
{
thread_t thr_act = current_thread();
kern_return_t kret;
if (ctx == (void *)NULL)
return;
struct arm_thread_state_t *ts = (struct arm_thread_state_t*)ctx;
machine_thread_set_state(thr_act, ARM_THREAD_STATE, (thread_state_t)ts,
ARM_THREAD_STATE_COUNT);
kfree(ts, sizeof(struct arm_thread_state));
}
/*
* Routine: lck_mtx_sleep_deadline
*/
wait_result_t
lck_mtx_sleep_deadline(
lck_mtx_t *lck,
lck_sleep_action_t lck_sleep_action,
event_t event,
wait_interrupt_t interruptible,
uint64_t deadline)
{
wait_result_t res;
thread_t thread = current_thread();
KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_LOCKS, LCK_MTX_SLEEP_DEADLINE_CODE) | DBG_FUNC_START,
VM_KERNEL_UNSLIDE_OR_PERM(lck), (int)lck_sleep_action, VM_KERNEL_UNSLIDE_OR_PERM(event), (int)interruptible, 0);
if ((lck_sleep_action & ~LCK_SLEEP_MASK) != 0)
panic("Invalid lock sleep action %x\n", lck_sleep_action);
if (lck_sleep_action & LCK_SLEEP_PROMOTED_PRI) {
/*
* See lck_mtx_sleep().
*/
thread->rwlock_count++;
}
res = assert_wait_deadline(event, interruptible, deadline);
if (res == THREAD_WAITING) {
lck_mtx_unlock(lck);
res = thread_block(THREAD_CONTINUE_NULL);
if (!(lck_sleep_action & LCK_SLEEP_UNLOCK)) {
if ((lck_sleep_action & LCK_SLEEP_SPIN))
lck_mtx_lock_spin(lck);
else
lck_mtx_lock(lck);
}
}
else
if (lck_sleep_action & LCK_SLEEP_UNLOCK)
lck_mtx_unlock(lck);
if (lck_sleep_action & LCK_SLEEP_PROMOTED_PRI) {
if ((thread->rwlock_count-- == 1 /* field now 0 */) && (thread->sched_flags & TH_SFLAG_RW_PROMOTED)) {
/* sched_flags checked without lock, but will be rechecked while clearing */
lck_rw_clear_promotion(thread);
}
}
KERNEL_DEBUG(MACHDBG_CODE(DBG_MACH_LOCKS, LCK_MTX_SLEEP_DEADLINE_CODE) | DBG_FUNC_END, (int)res, 0, 0, 0, 0);
return res;
}
mach_port_name_t
thread_self_trap(
__unused struct thread_self_trap_args *args)
{
thread_t thread = current_thread();
task_t task = thread->task;
ipc_port_t sright;
mach_port_name_t name;
sright = retrieve_thread_self_fast(thread);
name = ipc_port_copyout_send(sright, task->itk_space);
return name;
}
// ### fasl-sharp-dollar stream sub-char numarg => value
Value SYS_fasl_sharp_dollar(Value streamarg, Value subchar, Value numarg)
{
Symbol * symbol = check_symbol(stream_read_symbol(streamarg, FASL_READTABLE));
Thread * thread = current_thread();
Value package = thread->symbol_value(S_fasl_anonymous_package);
if (package == NIL)
{
package = make_value(new Package());
thread->set_symbol_value(S_fasl_anonymous_package, package);
}
Value sym = check_package(package)->intern(symbol->name(), false);
the_symbol(sym)->set_package(NIL);
return sym;
}
/**
* Unset thread specific value if present
*
* @return true on success
*/
bool erase() {
auto currThread = current_thread();
for (size_t i = 0; i < N; i++) {
if (atomic_load_explicit(&threads[i], memory_order_acquire) == currThread) {
values[i] = {};
thread_t nullThread = nullptr;
return atomic_compare_exchange_strong_explicit(&threads[i], &currThread,
nullThread, memory_order_acq_rel, memory_order_acq_rel);
}
}
return false;
}
boolean_t
db_phys_eq(
task_t task1,
vm_offset_t addr1,
const task_t task2,
vm_offset_t addr2)
{
vm_offset_t kern_addr1, kern_addr2;
if (addr1 >= VM_MIN_KERNEL_ADDRESS || addr2 >= VM_MIN_KERNEL_ADDRESS)
return FALSE;
if ((addr1 & (INTEL_PGBYTES-1)) != (addr2 & (INTEL_PGBYTES-1)))
return FALSE;
if (task1 == TASK_NULL) {
if (current_thread() == THREAD_NULL)
return FALSE;
task1 = current_thread()->task;
}
if (db_user_to_kernel_address(task1, addr1, &kern_addr1, 0) < 0
|| db_user_to_kernel_address(task2, addr2, &kern_addr2, 0) < 0)
return FALSE;
return(kern_addr1 == kern_addr2);
}
/*
* This method will bind a given thread to the requested CPU starting at the
* next time quantum. If the thread is the current thread, this method will
* force a thread_block(). The result is that if you call this method on the
* current thread, you will be on the requested CPU when this method returns.
*/
__private_extern__ kern_return_t
chudxnu_bind_thread(thread_t thread, int cpu, __unused int options)
{
processor_t proc = NULL;
if(cpu < 0 || (unsigned int)cpu >= real_ncpus) // sanity check
return KERN_FAILURE;
// temporary restriction until after phase 2 of the scheduler
if(thread != current_thread())
return KERN_FAILURE;
proc = cpu_to_processor(cpu);
/*
* Potentially racey, but mainly to prevent bind to shutdown
* processor.
*/
if(proc && !(proc->state == PROCESSOR_OFF_LINE) &&
!(proc->state == PROCESSOR_SHUTDOWN)) {
thread_bind(proc);
/*
* If we're trying to bind the current thread, and
* we're not on the target cpu, and not at interrupt
* context, block the current thread to force a
* reschedule on the target CPU.
*/
if(thread == current_thread() &&
!ml_at_interrupt_context() && cpu_number() != cpu) {
(void)thread_block(THREAD_CONTINUE_NULL);
}
return KERN_SUCCESS;
}
return KERN_FAILURE;
}
void db_dr (
int num,
vm_offset_t linear_addr,
int type,
int len,
int persistence)
{
int s = splhigh();
unsigned long dr7;
if (!kernel_dr) {
if (!linear_addr) {
splx(s);
return;
}
kernel_dr = TRUE;
/* Clear user debugging registers */
set_dr7(0);
set_dr0(0);
set_dr1(0);
set_dr2(0);
set_dr3(0);
}
ids.dr[num] = linear_addr;
switch (num) {
case 0: set_dr0(linear_addr); break;
case 1: set_dr1(linear_addr); break;
case 2: set_dr2(linear_addr); break;
case 3: set_dr3(linear_addr); break;
}
/* Replace type/len/persistence for DRnum in dr7 */
dr7 = get_dr7 ();
dr7 &= ~(0xfUL << (4*num+16)) & ~(0x3UL << (2*num));
dr7 |= (((len << 2) | type) << (4*num+16)) | (persistence << (2*num));
set_dr7 (dr7);
if (kernel_dr) {
if (!ids.dr[0] && !ids.dr[1] && !ids.dr[2] && !ids.dr[3]) {
/* Not used any more, switch back to user debugging registers */
set_dr7 (0);
kernel_dr = FALSE;
zero_dr = TRUE;
db_load_context(current_thread()->pcb);
}
}
splx(s);
}
/*
* Routine: lck_rw_sleep_deadline
*/
wait_result_t
lck_rw_sleep_deadline(
lck_rw_t *lck,
lck_sleep_action_t lck_sleep_action,
event_t event,
wait_interrupt_t interruptible,
uint64_t deadline)
{
wait_result_t res;
lck_rw_type_t lck_rw_type;
thread_t thread = current_thread();
if ((lck_sleep_action & ~LCK_SLEEP_MASK) != 0)
panic("Invalid lock sleep action %x\n", lck_sleep_action);
if (lck_sleep_action & LCK_SLEEP_PROMOTED_PRI) {
thread->rwlock_count++;
}
res = assert_wait_deadline(event, interruptible, deadline);
if (res == THREAD_WAITING) {
lck_rw_type = lck_rw_done(lck);
res = thread_block(THREAD_CONTINUE_NULL);
if (!(lck_sleep_action & LCK_SLEEP_UNLOCK)) {
if (!(lck_sleep_action & (LCK_SLEEP_SHARED|LCK_SLEEP_EXCLUSIVE)))
lck_rw_lock(lck, lck_rw_type);
else if (lck_sleep_action & LCK_SLEEP_EXCLUSIVE)
lck_rw_lock_exclusive(lck);
else
lck_rw_lock_shared(lck);
}
}
else
if (lck_sleep_action & LCK_SLEEP_UNLOCK)
(void)lck_rw_done(lck);
if (lck_sleep_action & LCK_SLEEP_PROMOTED_PRI) {
if ((thread->rwlock_count-- == 1 /* field now 0 */) && (thread->sched_flags & TH_SFLAG_RW_PROMOTED)) {
/* sched_flags checked without lock, but will be rechecked while clearing */
/* Only if the caller wanted the lck_rw_t returned unlocked should we drop to 0 */
assert(lck_sleep_action & LCK_SLEEP_UNLOCK);
lck_rw_clear_promotion(thread);
}
}
return res;
}
kern_return_t
thread_get_state(
register thread_t thread,
int flavor,
thread_state_t state, /* pointer to OUT array */
mach_msg_type_number_t *state_count) /*IN/OUT*/
{
kern_return_t result = KERN_SUCCESS;
if (thread == THREAD_NULL)
return (KERN_INVALID_ARGUMENT);
thread_mtx_lock(thread);
if (thread->active) {
if (thread != current_thread()) {
thread_hold(thread);
thread_mtx_unlock(thread);
if (thread_stop(thread, FALSE)) {
thread_mtx_lock(thread);
result = machine_thread_get_state(
thread, flavor, state, state_count);
thread_unstop(thread);
}
else {
thread_mtx_lock(thread);
result = KERN_ABORTED;
}
thread_release(thread);
}
else
result = machine_thread_get_state(
thread, flavor, state, state_count);
}
else if (thread->inspection)
{
result = machine_thread_get_state(
thread, flavor, state, state_count);
}
else
result = KERN_TERMINATED;
thread_mtx_unlock(thread);
return (result);
}
void BrcmPatchRAM::uploadFirmwareThread(void *arg, wait_result_t wait)
{
DebugLog("sendFirmwareThread enter\n");
BrcmPatchRAM* me = static_cast<BrcmPatchRAM*>(arg);
me->resetDevice();
IOSleep(20);
me->uploadFirmware();
me->publishPersonality();
me->scheduleWork(kWorkFinished);
DebugLog("sendFirmwareThread termination\n");
thread_terminate(current_thread());
DebugLog("!!! sendFirmwareThread post-terminate !!! should not be here\n");
}
int thread_yield_microseconds(unsigned microsecs)
{
struct thread *current;
struct timeout_callback tocb;
current = current_thread();
if (!thread_can_yield(current))
return -1;
if (thread_yield_timed_callback(&tocb, microsecs))
return -1;
return 0;
}
static void schedule(struct thread *t)
{
struct thread *current = current_thread();
/* If t is NULL need to find new runnable thread. */
if (t == NULL) {
if (thread_list_empty(&runnable_threads))
die("Runnable thread list is empty!\n");
t = pop_runnable();
} else {
/* current is still runnable. */
push_runnable(current);
}
switch_to_thread(t->stack_current, ¤t->stack_current);
}
/*
* Routine: cpu_sleep
* Function:
*/
void
cpu_sleep(void)
{
cpu_data_t *cpu_data_ptr = getCpuDatap();
pmap_switch_user_ttb(kernel_pmap);
cpu_data_ptr->cpu_active_thread = current_thread();
cpu_data_ptr->cpu_reset_handler = (vm_offset_t) start_cpu_paddr;
cpu_data_ptr->cpu_flags |= SleepState;
cpu_data_ptr->cpu_user_debug = NULL;
CleanPoC_Dcache();
PE_cpu_machine_quiesce(cpu_data_ptr->cpu_id);
}
void
get_vfs_context(void)
{
int isglock = ISAFS_GLOCK();
if (!isglock)
AFS_GLOCK();
if (afs_osi_ctxtp_initialized) {
if (!isglock)
AFS_GUNLOCK();
return;
}
osi_Assert(vfs_context_owner != current_thread());
if (afs_osi_ctxtp && current_proc() == vfs_context_curproc) {
vfs_context_ref++;
vfs_context_owner = current_thread();
if (!isglock)
AFS_GUNLOCK();
return;
}
while (afs_osi_ctxtp && vfs_context_ref) {
afs_osi_Sleep(&afs_osi_ctxtp);
if (afs_osi_ctxtp_initialized) {
if (!isglock)
AFS_GUNLOCK();
return;
}
}
vfs_context_rele(afs_osi_ctxtp);
vfs_context_ref=1;
afs_osi_ctxtp = vfs_context_create(NULL);
vfs_context_owner = current_thread();
vfs_context_curproc = current_proc();
if (!isglock)
AFS_GUNLOCK();
}
AbstractString * StandardObject::write_to_string()
{
if (CL_fboundp(S_print_object) != NIL)
{
Thread * const thread = current_thread();
StringOutputStream * stream = new StringOutputStream(S_character);
thread->execute(the_symbol(S_print_object)->function(),
make_value(this),
make_value(stream));
AbstractString * s = stream->get_string();
return s;
}
else
return unreadable_string();
}
struct trace_cpu_data *trace_get_tcd(void)
{
struct trace_cpu_data *tcd;
int nr_pages;
struct list_head pages;
/*
* XXX nikita: do NOT call libcfs_debug_msg() (CDEBUG/ENTRY/EXIT)
* from here: this will lead to infinite recursion.
*/
/*
* debugging check for recursive call to libcfs_debug_msg()
*/
if (trace_owner == current_thread()) {
/*
* Cannot assert here.
*/
printk(KERN_EMERG "recursive call to %s", __FUNCTION__);
/*
* "The death of God left the angels in a strange position."
*/
cfs_enter_debugger();
}
tcd = &trace_data[0].tcd;
CFS_INIT_LIST_HEAD(&pages);
if (get_preemption_level() == 0)
nr_pages = trace_refill_stock(tcd, CFS_ALLOC_STD, &pages);
else
nr_pages = 0;
spin_lock(&trace_cpu_serializer);
trace_owner = current_thread();
tcd->tcd_cur_stock_pages += nr_pages;
list_splice(&pages, &tcd->tcd_stock_pages);
return tcd;
}
/*
* Routine: semaphore_wait_continue
*
* Common continuation routine after waiting on a semphore.
* It returns directly to user space.
*/
void
semaphore_wait_continue(void)
{
thread_t self = current_thread();
int wait_result = self->wait_result;
void (*caller_cont)(kern_return_t) = self->sth_continuation;
assert(self->sth_waitsemaphore != SEMAPHORE_NULL);
semaphore_dereference(self->sth_waitsemaphore);
if (self->sth_signalsemaphore != SEMAPHORE_NULL)
semaphore_dereference(self->sth_signalsemaphore);
assert(caller_cont != (void (*)(kern_return_t))0);
(*caller_cont)(semaphore_convert_wait_result(wait_result));
}
static int
thread_switch_disable_workqueue_sched_callback(void)
{
sched_call_t callback = workqueue_get_sched_callback();
thread_t self = current_thread();
if (!callback || self->sched_call != callback) {
return FALSE;
}
spl_t s = splsched();
thread_lock(self);
thread_sched_call(self, NULL);
thread_unlock(self);
splx(s);
return TRUE;
}
kern_return_t
lock_release (lock_set_t lock_set, int lock_id)
{
ulock_t ulock;
if (lock_set == LOCK_SET_NULL)
return KERN_INVALID_ARGUMENT;
if (lock_id < 0 || lock_id >= lock_set->n_ulocks)
return KERN_INVALID_ARGUMENT;
ulock = (ulock_t) &lock_set->ulock_list[lock_id];
return (ulock_release_internal(ulock, current_thread()));
}
nw_result mk_connection_open_internal(nw_ep local_ep, nw_address_1 rem_addr_1,
nw_address_2 rem_addr_2, nw_ep remote_ep) {
nw_result rc;
rc = (*devct[NW_DEVICE(rem_addr_1)].entry->open) (local_ep,
rem_addr_1, rem_addr_2,
remote_ep);
if (rc == NW_SYNCH) {
hect[local_ep].sig_waiter = current_thread();
assert_wait(0, TRUE);
simple_unlock(&nw_simple_lock);
thread_block((void (*)()) 0);
}
return rc;
}
/*
* Reset thread to default state in preparation for termination
* Called with thread mutex locked
*
* Always called on current thread, so we don't need a run queue remove
*/
void
thread_policy_reset(
thread_t thread)
{
spl_t s;
assert(thread == current_thread());
s = splsched();
thread_lock(thread);
assert_thread_sched_count(thread);
if (thread->sched_flags & TH_SFLAG_FAILSAFE)
sched_thread_mode_undemote(thread, TH_SFLAG_FAILSAFE);
assert_thread_sched_count(thread);
if (thread->sched_flags & TH_SFLAG_THROTTLED)
sched_set_thread_throttled(thread, FALSE);
assert_thread_sched_count(thread);
assert(thread->BG_COUNT == 0);
/* At this point, the various demotions should be inactive */
assert(!(thread->sched_flags & TH_SFLAG_DEMOTED_MASK));
assert(!(thread->sched_flags & TH_SFLAG_THROTTLED));
assert(!(thread->sched_flags & TH_SFLAG_DEPRESSED_MASK));
/* Reset thread back to task-default basepri and mode */
sched_mode_t newmode = SCHED(initial_thread_sched_mode)(thread->task);
sched_set_thread_mode(thread, newmode);
thread->importance = 0;
sched_set_thread_base_priority(thread, thread->task_priority);
/* Prevent further changes to thread base priority or mode */
thread->policy_reset = 1;
assert(thread->BG_COUNT == 0);
assert_thread_sched_count(thread);
thread_unlock(thread);
splx(s);
}
