void decrement_task(task_id task) {
task_t* current = &open_tasks[task];
while (current != 0) {
if (!waiting_on_task) {
evaluate_dependencies();
}
task_t* deletion = current;
int items = atomic_decrement(current->open_work_items);
if (items == 0) {
if (current->parent != kNullTask) {
current = &open_tasks[current->parent];
}
else {
current = 0;
}
// remove the task from the open_list
atomic_decrement(num_tasks);
task_id deletedid = deletion->id;
task_initialize(deletion);
availableIds.push(deletedid);
}
else {
current = 0;
}
}
}
void Memory::free_static(void *p_ptr, bool p_pad_align) {
ERR_FAIL_COND(p_ptr == NULL);
uint8_t *mem = (uint8_t *)p_ptr;
#ifdef DEBUG_ENABLED
bool prepad = true;
#else
bool prepad = p_pad_align;
#endif
atomic_decrement(&alloc_count);
if (prepad) {
mem -= PAD_ALIGN;
uint64_t *s = (uint64_t *)mem;
#ifdef DEBUG_ENABLED
atomic_sub(&mem_usage, *s);
#endif
free(mem);
} else {
free(mem);
}
}
void weak_release() // nothrow
{
if( atomic_decrement( &weak_count_ ) == 1 )
{
destroy();
}
}
void release() // nothrow
{
if( atomic_decrement( &use_count_ ) == 1 )
{
dispose();
weak_release();
}
}
int vector_put(vector_t * vector, size_t i, void * val)
{
void * rv;
size_t increase;
vector_node_t * nodes;
size_t size;
rw_spinlock_read_lock(vector->lock);
do
{
do
{
do
{
do
{
nodes = vector->nodes;
hptr_register(0, nodes);
} while (nodes != vector->nodes);
size = vector->size;
if (!size)
continue;
} while (nodes != vector->nodes);
if (i >= size)
{
increase = vector->increase;
increase = (((i - size) / increase) + 1) * increase;
if (internal_resize(vector, size + increase) != 0)
goto abort_vector_put;
}
} while (nodes != vector->nodes);
rv = NULL;
while (compare_and_exchange_ptr(&rv, &(nodes[i].val), val) != 0);
} while (nodes != vector->nodes);
hptr_free(0);
if (rv == NULL)
{
atomic_increment(&(vector->num_entries));
if (val != NULL);
vector->condensed = 0;
}
if (val == NULL)
{
atomic_decrement(&(vector->num_entries));
if (rv != NULL)
vector->condensed = 0;
}
vector->sorted = 0;
rw_spinlock_read_unlock(vector->lock);
return 0;
abort_vector_put:
rw_spinlock_read_unlock(vector->lock);
return -1;
}
static void thread_compute_1d(struct pthreadpool* threadpool, struct thread_info* thread) {
const pthreadpool_function_1d_t function = (pthreadpool_function_1d_t) threadpool->function;
void *const argument = threadpool->argument;
/* Process thread's own range of items */
size_t range_start = thread->range_start;
while (atomic_decrement(&thread->range_length)) {
function(argument, range_start++);
}
/* Done, now look for other threads' items to steal */
const size_t thread_number = thread->thread_number;
const size_t threads_count = threadpool->threads_count;
for (size_t tid = (thread_number + 1) % threads_count; tid != thread_number; tid = (tid + 1) % threads_count) {
struct thread_info* other_thread = &threadpool->threads[tid];
if (other_thread->state != thread_state_idle) {
while (atomic_decrement(&other_thread->range_length)) {
const size_t item_id = __sync_sub_and_fetch(&other_thread->range_end, 1);
function(argument, item_id);
}
}
}
}
void ReadWriteLock::Release(WriteGuard&)
{
KS_ASSERT(mWriteEntryThread == GetCurrentThreadId() && mReentrancyCount >= 0);
int reentrants = mReentrancyCount > 0 ? atomic_decrement((u32*)&mReentrancyCount) + 1 : 0;
if (reentrants == 0)
{
mWriteEntryThread = 0;
const u32 lock_key(EXCL_ENCODE(exclusive_write, 0));
if (atomic_compare_and_swap(&mMutualExclusivityMask, lock_key, exclusive_none) != lock_key)
{
KS_ASSERT( ! "ReadWriteLockException::eAlreadyUnlocked" );
}
}
}
void ReadWriteLock::Release(ReadGuard&)
{
const u32 lock_key = EXCL_ENCODE(exclusive_write, 0);
u32 mutual_mask = mMutualExclusivityMask;
u32 current_key = mutual_mask & READ_COUNT_MASK;
u32 exit_key = current_key - 1;
while (atomic_compare_and_swap(&mMutualExclusivityMask, current_key, exit_key) != current_key )
{
if (mutual_mask == lock_key && mWriteEntryThread == GetCurrentThreadId()) // it's a re-entrant read
{
int rentrants = atomic_decrement((u32*)&mReentrancyCount);
KS_ASSERT(rentrants >= 0);
break;
}
cond_wait();
mutual_mask = mMutualExclusivityMask;
current_key = mutual_mask & READ_COUNT_MASK;
exit_key = current_key - 1;
}
}
void LeaveSpinLockCriticalSection_Share(SPIN_LOCK_FLAG& spinLockFlag)
{
atomic_decrement(&spinLockFlag);
atomic_compare_exchange(&spinLockFlag, 0, 2);
}
void atomic_dec_64 (volatile uint64_t *target)
{
atomic_decrement (target);
}
void atomic_dec_ulong (volatile unsigned long *target)
{
atomic_decrement (target);
}
void atomic_dec_uint (volatile unsigned int *target)
{
atomic_decrement (target);
}
void __pthread_suspend_old(pthread_descr self)
{
if (atomic_decrement(&self->p_resume_count) <= 0)
__pthread_wait_for_restart_signal(self);
}
void *taim_server(void*stupid) {
unsigned int addrlen;
int server,
client,
ret,
ix,
yes=1;
struct sockaddr_in name;
struct sockaddr addr;
struct hostent *gethostbyaddr();
// End of Declaration
atomic_increment();
addr.sa_family = AF_INET;
strcpy(addr.sa_data, "somename");
name.sin_family = AF_INET;
name.sin_port = htons(19091);
name.sin_addr.s_addr = INADDR_ANY;
server = socket(PF_INET, SOCK_STREAM, 0);
handle_register(server);
setsockopt(server, SOL_SOCKET, SO_REUSEADDR, &yes, sizeof(yes));
// setsockopt
if(bind(server, (struct sockaddr*)&name, sizeof(name))<0) {
printf("Could not bind to port: ");
while(bind(server, (struct sockaddr*)&name, sizeof(name))<0) {
printf(".");
usleep(990000);
fflush(0);
}
printf("\n");
}
printf("Running on port:\t%d\n", ntohs(name.sin_port));
addrlen = sizeof(addr);
getsockname(server, &addr, &addrlen);
listen(server, 10);
for(;;) {
client = accept(server,0,0);
if(client == -1) {
if (g_die) {
break;
}
continue;
}
handle_register(client);
for(ix = 0; ix < MAX_CONNECT; ix++) {
if(g_client_inuse[ix] == 0) {
client_struct toPass;
toPass.client = client;
toPass.thread = ix;
ret = pthread_create(&g_client_thread[ix], 0, client_chat, (void*)&toPass);
pthread_detach(g_client_thread[ix]);
break;
}
}
handle_deregister(client);
}
fcntl(server,F_SETFL,O_NONBLOCK);
atomic_decrement();
return 0;
}
void
__unregister_atfork (
void *dso_handle)
{
/* Check whether there is any entry in the list which we have to
remove. It is likely that this is not the case so don't bother
getting the lock.
We do not worry about other threads adding entries for this DSO
right this moment. If this happens this is a race and we can do
whatever we please. The program will crash anyway seen. */
struct fork_handler *runp = __fork_handlers;
struct fork_handler *lastp = NULL;
while (runp != NULL)
if (runp->dso_handle == dso_handle)
break;
else
{
lastp = runp;
runp = runp->next;
}
if (runp == NULL)
/* Nothing to do. */
return;
/* Get the lock to not conflict with additions or deletions. Note
that there couldn't have been another thread deleting something.
The __unregister_atfork function is only called from the
dlclose() code which itself serializes the operations. */
lll_lock (__fork_lock, LLL_PRIVATE);
/* We have to create a new list with all the entries we don't remove. */
struct deleted_handler
{
struct fork_handler *handler;
struct deleted_handler *next;
} *deleted = NULL;
/* Remove the entries for the DSO which is unloaded from the list.
It's a single linked list so readers are. */
do
{
again:
if (runp->dso_handle == dso_handle)
{
if (lastp == NULL)
{
/* We have to use an atomic operation here because
__linkin_atfork also uses one. */
if (catomic_compare_and_exchange_bool_acq (&__fork_handlers,
runp->next, runp)
!= 0)
{
runp = __fork_handlers;
goto again;
}
}
else
lastp->next = runp->next;
/* We cannot overwrite the ->next element now. Put the deleted
entries in a separate list. */
struct deleted_handler *newp = alloca (sizeof (*newp));
newp->handler = runp;
newp->next = deleted;
deleted = newp;
}
else
lastp = runp;
runp = runp->next;
}
while (runp != NULL);
/* Release the lock. */
lll_unlock (__fork_lock, LLL_PRIVATE);
/* Walk the list of all entries which have to be deleted. */
while (deleted != NULL)
{
/* We need to be informed by possible current users. */
deleted->handler->need_signal = 1;
/* Make sure this gets written out first. */
atomic_write_barrier ();
/* Decrement the reference counter. If it does not reach zero
wait for the last user. */
atomic_decrement (&deleted->handler->refcntr);
unsigned int val;
while ((val = deleted->handler->refcntr) != 0)
lll_futex_wait (&deleted->handler->refcntr, val, LLL_PRIVATE);
deleted = deleted->next;
}
}
void atomic_dec_8 (volatile uint8_t *target)
{
atomic_decrement (target);
}
bool SharedData::deref()
{
return atomic_decrement(&m_count);
}
static int
do_clone (struct pthread *pd, const struct pthread_attr *attr,
int clone_flags, int (*fct) (void *), STACK_VARIABLES_PARMS,
int stopped)
{
#ifdef PREPARE_CREATE
PREPARE_CREATE;
#endif
if (__builtin_expect (stopped != 0, 0))
/* We make sure the thread does not run far by forcing it to get a
lock. We lock it here too so that the new thread cannot continue
until we tell it to. */
lll_lock (pd->lock, LLL_PRIVATE);
/* One more thread. We cannot have the thread do this itself, since it
might exist but not have been scheduled yet by the time we've returned
and need to check the value to behave correctly. We must do it before
creating the thread, in case it does get scheduled first and then
might mistakenly think it was the only thread. In the failure case,
we momentarily store a false value; this doesn't matter because there
is no kosher thing a signal handler interrupting us right here can do
that cares whether the thread count is correct. */
atomic_increment (&__nptl_nthreads);
int rc = ARCH_CLONE (fct, STACK_VARIABLES_ARGS, clone_flags,
pd, &pd->tid, TLS_VALUE, &pd->tid);
if (__builtin_expect (rc == -1, 0))
{
atomic_decrement (&__nptl_nthreads); /* Oops, we lied for a second. */
/* Perhaps a thread wants to change the IDs and if waiting
for this stillborn thread. */
if (__builtin_expect (atomic_exchange_acq (&pd->setxid_futex, 0)
== -2, 0))
lll_futex_wake (&pd->setxid_futex, 1, LLL_PRIVATE);
/* Free the resources. */
__deallocate_stack (pd);
/* We have to translate error codes. */
return errno == ENOMEM ? EAGAIN : errno;
}
/* Now we have the possibility to set scheduling parameters etc. */
if (__builtin_expect (stopped != 0, 0))
{
INTERNAL_SYSCALL_DECL (err);
int res = 0;
/* Set the affinity mask if necessary. */
if (attr->cpuset != NULL)
{
res = INTERNAL_SYSCALL (sched_setaffinity, err, 3, pd->tid,
attr->cpusetsize, attr->cpuset);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
{
/* The operation failed. We have to kill the thread. First
send it the cancellation signal. */
INTERNAL_SYSCALL_DECL (err2);
err_out:
(void) INTERNAL_SYSCALL (tgkill, err2, 3,
THREAD_GETMEM (THREAD_SELF, pid),
pd->tid, SIGCANCEL);
/* We do not free the stack here because the canceled thread
itself will do this. */
return (INTERNAL_SYSCALL_ERROR_P (res, err)
? INTERNAL_SYSCALL_ERRNO (res, err)
: 0);
}
}
/* Set the scheduling parameters. */
if ((attr->flags & ATTR_FLAG_NOTINHERITSCHED) != 0)
{
res = INTERNAL_SYSCALL (sched_setscheduler, err, 3, pd->tid,
pd->schedpolicy, &pd->schedparam);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
goto err_out;
}
}
/* We now have for sure more than one thread. The main thread might
not yet have the flag set. No need to set the global variable
again if this is what we use. */
THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
return 0;
}
/* Test various atomic.h macros. */
static int
do_test (void)
{
atomic_t mem;
int ret = 0;
#ifdef atomic_compare_and_exchange_val_acq
mem = 24;
if (atomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
|| mem != 35)
{
puts ("atomic_compare_and_exchange_val_acq test 1 failed");
ret = 1;
}
mem = 12;
if (atomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
|| mem != 12)
{
puts ("atomic_compare_and_exchange_val_acq test 2 failed");
ret = 1;
}
mem = -15;
if (atomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
|| mem != -56)
{
puts ("atomic_compare_and_exchange_val_acq test 3 failed");
ret = 1;
}
mem = -1;
if (atomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
|| mem != -1)
{
puts ("atomic_compare_and_exchange_val_acq test 4 failed");
ret = 1;
}
#endif
mem = 24;
if (atomic_compare_and_exchange_bool_acq (&mem, 35, 24)
|| mem != 35)
{
puts ("atomic_compare_and_exchange_bool_acq test 1 failed");
ret = 1;
}
mem = 12;
if (! atomic_compare_and_exchange_bool_acq (&mem, 10, 15)
|| mem != 12)
{
puts ("atomic_compare_and_exchange_bool_acq test 2 failed");
ret = 1;
}
mem = -15;
if (atomic_compare_and_exchange_bool_acq (&mem, -56, -15)
|| mem != -56)
{
puts ("atomic_compare_and_exchange_bool_acq test 3 failed");
ret = 1;
}
mem = -1;
if (! atomic_compare_and_exchange_bool_acq (&mem, 17, 0)
|| mem != -1)
{
puts ("atomic_compare_and_exchange_bool_acq test 4 failed");
ret = 1;
}
mem = 64;
if (atomic_exchange_acq (&mem, 31) != 64
|| mem != 31)
{
puts ("atomic_exchange_acq test failed");
ret = 1;
}
mem = 2;
if (atomic_exchange_and_add (&mem, 11) != 2
|| mem != 13)
{
puts ("atomic_exchange_and_add test failed");
ret = 1;
}
mem = -21;
atomic_add (&mem, 22);
if (mem != 1)
{
puts ("atomic_add test failed");
ret = 1;
}
mem = -1;
atomic_increment (&mem);
if (mem != 0)
{
puts ("atomic_increment test failed");
ret = 1;
}
mem = 2;
if (atomic_increment_val (&mem) != 3)
{
puts ("atomic_increment_val test failed");
ret = 1;
}
mem = 0;
if (atomic_increment_and_test (&mem)
|| mem != 1)
{
puts ("atomic_increment_and_test test 1 failed");
ret = 1;
}
mem = 35;
if (atomic_increment_and_test (&mem)
|| mem != 36)
{
puts ("atomic_increment_and_test test 2 failed");
ret = 1;
}
mem = -1;
if (! atomic_increment_and_test (&mem)
|| mem != 0)
{
puts ("atomic_increment_and_test test 3 failed");
ret = 1;
}
mem = 17;
atomic_decrement (&mem);
if (mem != 16)
{
puts ("atomic_decrement test failed");
ret = 1;
}
if (atomic_decrement_val (&mem) != 15)
{
puts ("atomic_decrement_val test failed");
ret = 1;
}
mem = 0;
if (atomic_decrement_and_test (&mem)
|| mem != -1)
{
puts ("atomic_decrement_and_test test 1 failed");
ret = 1;
}
mem = 15;
if (atomic_decrement_and_test (&mem)
|| mem != 14)
{
puts ("atomic_decrement_and_test test 2 failed");
ret = 1;
}
mem = 1;
if (! atomic_decrement_and_test (&mem)
|| mem != 0)
{
puts ("atomic_decrement_and_test test 3 failed");
ret = 1;
}
mem = 1;
if (atomic_decrement_if_positive (&mem) != 1
|| mem != 0)
{
puts ("atomic_decrement_if_positive test 1 failed");
ret = 1;
}
mem = 0;
if (atomic_decrement_if_positive (&mem) != 0
|| mem != 0)
{
puts ("atomic_decrement_if_positive test 2 failed");
ret = 1;
}
mem = -1;
if (atomic_decrement_if_positive (&mem) != -1
|| mem != -1)
{
puts ("atomic_decrement_if_positive test 3 failed");
ret = 1;
}
mem = -12;
if (! atomic_add_negative (&mem, 10)
|| mem != -2)
{
puts ("atomic_add_negative test 1 failed");
ret = 1;
}
mem = 0;
if (atomic_add_negative (&mem, 100)
|| mem != 100)
{
puts ("atomic_add_negative test 2 failed");
ret = 1;
}
mem = 15;
if (atomic_add_negative (&mem, -10)
|| mem != 5)
{
puts ("atomic_add_negative test 3 failed");
ret = 1;
}
mem = -12;
if (atomic_add_negative (&mem, 14)
|| mem != 2)
{
puts ("atomic_add_negative test 4 failed");
ret = 1;
}
mem = 0;
if (! atomic_add_negative (&mem, -1)
|| mem != -1)
{
puts ("atomic_add_negative test 5 failed");
ret = 1;
}
mem = -31;
if (atomic_add_negative (&mem, 31)
|| mem != 0)
{
puts ("atomic_add_negative test 6 failed");
ret = 1;
}
mem = -34;
if (atomic_add_zero (&mem, 31)
|| mem != -3)
{
puts ("atomic_add_zero test 1 failed");
ret = 1;
}
mem = -36;
if (! atomic_add_zero (&mem, 36)
|| mem != 0)
{
puts ("atomic_add_zero test 2 failed");
ret = 1;
}
mem = 113;
if (atomic_add_zero (&mem, -13)
|| mem != 100)
{
puts ("atomic_add_zero test 3 failed");
ret = 1;
}
mem = -18;
if (atomic_add_zero (&mem, 20)
|| mem != 2)
{
puts ("atomic_add_zero test 4 failed");
ret = 1;
}
mem = 10;
if (atomic_add_zero (&mem, -20)
|| mem != -10)
{
puts ("atomic_add_zero test 5 failed");
ret = 1;
}
mem = 10;
if (! atomic_add_zero (&mem, -10)
|| mem != 0)
{
puts ("atomic_add_zero test 6 failed");
ret = 1;
}
mem = 0;
atomic_bit_set (&mem, 1);
if (mem != 2)
{
puts ("atomic_bit_set test 1 failed");
ret = 1;
}
mem = 8;
atomic_bit_set (&mem, 3);
if (mem != 8)
{
puts ("atomic_bit_set test 2 failed");
ret = 1;
}
#ifdef TEST_ATOMIC64
mem = 16;
atomic_bit_set (&mem, 35);
if (mem != 0x800000010LL)
{
puts ("atomic_bit_set test 3 failed");
ret = 1;
}
#endif
mem = 0;
if (atomic_bit_test_set (&mem, 1)
|| mem != 2)
{
puts ("atomic_bit_test_set test 1 failed");
ret = 1;
}
mem = 8;
if (! atomic_bit_test_set (&mem, 3)
|| mem != 8)
{
puts ("atomic_bit_test_set test 2 failed");
ret = 1;
}
#ifdef TEST_ATOMIC64
mem = 16;
if (atomic_bit_test_set (&mem, 35)
|| mem != 0x800000010LL)
{
puts ("atomic_bit_test_set test 3 failed");
ret = 1;
}
mem = 0x100000000LL;
if (! atomic_bit_test_set (&mem, 32)
|| mem != 0x100000000LL)
{
puts ("atomic_bit_test_set test 4 failed");
ret = 1;
}
#endif
#ifdef catomic_compare_and_exchange_val_acq
mem = 24;
if (catomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
|| mem != 35)
{
puts ("catomic_compare_and_exchange_val_acq test 1 failed");
ret = 1;
}
mem = 12;
if (catomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
|| mem != 12)
{
puts ("catomic_compare_and_exchange_val_acq test 2 failed");
ret = 1;
}
mem = -15;
if (catomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
|| mem != -56)
{
puts ("catomic_compare_and_exchange_val_acq test 3 failed");
ret = 1;
}
mem = -1;
if (catomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
|| mem != -1)
{
puts ("catomic_compare_and_exchange_val_acq test 4 failed");
ret = 1;
}
#endif
mem = 24;
if (catomic_compare_and_exchange_bool_acq (&mem, 35, 24)
|| mem != 35)
{
puts ("catomic_compare_and_exchange_bool_acq test 1 failed");
ret = 1;
}
mem = 12;
if (! catomic_compare_and_exchange_bool_acq (&mem, 10, 15)
|| mem != 12)
{
puts ("catomic_compare_and_exchange_bool_acq test 2 failed");
ret = 1;
}
mem = -15;
if (catomic_compare_and_exchange_bool_acq (&mem, -56, -15)
|| mem != -56)
{
puts ("catomic_compare_and_exchange_bool_acq test 3 failed");
ret = 1;
}
mem = -1;
if (! catomic_compare_and_exchange_bool_acq (&mem, 17, 0)
|| mem != -1)
{
puts ("catomic_compare_and_exchange_bool_acq test 4 failed");
ret = 1;
}
mem = 2;
if (catomic_exchange_and_add (&mem, 11) != 2
|| mem != 13)
{
puts ("catomic_exchange_and_add test failed");
ret = 1;
}
mem = -21;
catomic_add (&mem, 22);
if (mem != 1)
{
puts ("catomic_add test failed");
ret = 1;
}
mem = -1;
catomic_increment (&mem);
if (mem != 0)
{
puts ("catomic_increment test failed");
ret = 1;
}
mem = 2;
if (catomic_increment_val (&mem) != 3)
{
puts ("catomic_increment_val test failed");
ret = 1;
}
mem = 17;
catomic_decrement (&mem);
if (mem != 16)
{
puts ("catomic_decrement test failed");
ret = 1;
}
if (catomic_decrement_val (&mem) != 15)
{
puts ("catomic_decrement_val test failed");
ret = 1;
}
return ret;
}
int
__pthread_timedsuspend_old(pthread_descr self, const struct timespec *abstime)
{
sigset_t unblock, initial_mask;
int was_signalled = 0;
sigjmp_buf jmpbuf;
if (atomic_decrement(&self->p_resume_count) == 0) {
/* Set up a longjmp handler for the restart signal, unblock
the signal and sleep. */
if (sigsetjmp(jmpbuf, 1) == 0) {
THREAD_SETMEM(self, p_signal_jmp, &jmpbuf);
THREAD_SETMEM(self, p_signal, 0);
/* Unblock the restart signal */
sigemptyset(&unblock);
sigaddset(&unblock, __pthread_sig_restart);
sigprocmask(SIG_UNBLOCK, &unblock, &initial_mask);
while (1) {
struct timeval now;
struct timespec reltime;
/* Compute a time offset relative to now. */
__gettimeofday (&now, NULL);
reltime.tv_nsec = abstime->tv_nsec - now.tv_usec * 1000;
reltime.tv_sec = abstime->tv_sec - now.tv_sec;
if (reltime.tv_nsec < 0) {
reltime.tv_nsec += 1000000000;
reltime.tv_sec -= 1;
}
/* Sleep for the required duration. If woken by a signal,
resume waiting as required by Single Unix Specification. */
if (reltime.tv_sec < 0 || __libc_nanosleep(&reltime, NULL) == 0)
break;
}
/* Block the restart signal again */
sigprocmask(SIG_SETMASK, &initial_mask, NULL);
was_signalled = 0;
} else {
was_signalled = 1;
}
THREAD_SETMEM(self, p_signal_jmp, NULL);
}
/* Now was_signalled is true if we exited the above code
due to the delivery of a restart signal. In that case,
we know we have been dequeued and resumed and that the
resume count is balanced. Otherwise, there are some
cases to consider. First, try to bump up the resume count
back to zero. If it goes to 1, it means restart() was
invoked on this thread. The signal must be consumed
and the count bumped down and everything is cool. We
can return a 1 to the caller.
Otherwise, no restart was delivered yet, so a potential
race exists; we return a 0 to the caller which must deal
with this race in an appropriate way; for example by
atomically removing the thread from consideration for a
wakeup---if such a thing fails, it means a restart is
being delivered. */
if (!was_signalled) {
if (atomic_increment(&self->p_resume_count) != -1) {
__pthread_wait_for_restart_signal(self);
atomic_decrement(&self->p_resume_count); /* should be zero now! */
/* woke spontaneously and consumed restart signal */
return 1;
}
/* woke spontaneously but did not consume restart---caller must resolve */
return 0;
}
/* woken due to restart signal */
return 1;
}
void atomic_dec_uchar (volatile unsigned char *target)
{
atomic_decrement (target);
}
void *client_chat(void*in) {
int ret = 0;
taim_buddy *tbuddy = 0;
taim_session *pses = 0;
taim_pipe *ptofree = 0;
char buffer[BUFFER_SIZE] = {0},
ret_buffer[BUFFER_SIZE] = {0},
*uid;
client_struct*pin = ((client_struct*)in);
// End declaration
// Raise the lock count
atomic_increment();
g_client_inuse[pin->thread] = 1;
ret = read(pin->client, buffer, BUFFER_SIZE);
// No data found, return
if(ret <= 0) {
atomic_decrement();
return 0;
}
d(buffer);
// Get the uid from the input string
ret = parse(buffer, ret_buffer, &uid);
if(ret == RET_ERROR) {
atomic_decrement();
return 0;
}
// Find the uid structure
pses = uid_find(uid);
if(pses != NULL) {
if(ret == RET_DATA) {
// clear the outgoing buffers
buddy_ret_clear(pses);
// lock the pipe mutex and fill the pipe
pthread_mutex_lock(&pses->pses->pipe_mutex);
for(;;) {
if(pses->pses->cpipe->next == 0) {
break;
}
// if a buddy was talking, set it as active
tbuddy = buddy_get(pses, pses->pses->cpipe->user);
if(tbuddy != NULL) {
buddy_set_active(pses, tbuddy);
buddy_ret_add(
pses,
tbuddy,
pses->pses->cpipe->data,
strlen(pses->pses->cpipe->data));
}
// clear this member of the linked list and move on
ptofree = pses->pses->cpipe;
pses->pses->cpipe = pses->pses->cpipe->next;
free(ptofree);
}
// generate the list of buddies to return
buddy_get_list(pses);
// fill the buffer with this list
buddy_ret_print(pses, ret_buffer);
// unlock the pipes
pthread_mutex_unlock(&pses->pses->pipe_mutex);
}
}
ret = write(pin->client, ret_buffer, strlen(ret_buffer));
// drop the connection
close(pin->client);
g_client_inuse[pin->thread] = 0;
free(uid);
atomic_decrement();
return 0;
}
/* Test various atomic.h macros. */
static int
do_test (void)
{
atomic_t mem, expected;
int ret = 0;
#ifdef atomic_compare_and_exchange_val_acq
mem = 24;
if (atomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
|| mem != 35)
{
puts ("atomic_compare_and_exchange_val_acq test 1 failed");
ret = 1;
}
mem = 12;
if (atomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
|| mem != 12)
{
puts ("atomic_compare_and_exchange_val_acq test 2 failed");
ret = 1;
}
mem = -15;
if (atomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
|| mem != -56)
{
puts ("atomic_compare_and_exchange_val_acq test 3 failed");
ret = 1;
}
mem = -1;
if (atomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
|| mem != -1)
{
puts ("atomic_compare_and_exchange_val_acq test 4 failed");
ret = 1;
}
#endif
mem = 24;
if (atomic_compare_and_exchange_bool_acq (&mem, 35, 24)
|| mem != 35)
{
puts ("atomic_compare_and_exchange_bool_acq test 1 failed");
ret = 1;
}
mem = 12;
if (! atomic_compare_and_exchange_bool_acq (&mem, 10, 15)
|| mem != 12)
{
puts ("atomic_compare_and_exchange_bool_acq test 2 failed");
ret = 1;
}
mem = -15;
if (atomic_compare_and_exchange_bool_acq (&mem, -56, -15)
|| mem != -56)
{
puts ("atomic_compare_and_exchange_bool_acq test 3 failed");
ret = 1;
}
mem = -1;
if (! atomic_compare_and_exchange_bool_acq (&mem, 17, 0)
|| mem != -1)
{
puts ("atomic_compare_and_exchange_bool_acq test 4 failed");
ret = 1;
}
mem = 64;
if (atomic_exchange_acq (&mem, 31) != 64
|| mem != 31)
{
puts ("atomic_exchange_acq test failed");
ret = 1;
}
mem = 2;
if (atomic_exchange_and_add (&mem, 11) != 2
|| mem != 13)
{
puts ("atomic_exchange_and_add test failed");
ret = 1;
}
mem = 2;
if (atomic_exchange_and_add_acq (&mem, 11) != 2
|| mem != 13)
{
puts ("atomic_exchange_and_add test failed");
ret = 1;
}
mem = 2;
if (atomic_exchange_and_add_rel (&mem, 11) != 2
|| mem != 13)
{
puts ("atomic_exchange_and_add test failed");
ret = 1;
}
mem = -21;
atomic_add (&mem, 22);
if (mem != 1)
{
puts ("atomic_add test failed");
ret = 1;
}
mem = -1;
atomic_increment (&mem);
if (mem != 0)
{
puts ("atomic_increment test failed");
ret = 1;
}
mem = 2;
if (atomic_increment_val (&mem) != 3)
{
puts ("atomic_increment_val test failed");
ret = 1;
}
mem = 0;
if (atomic_increment_and_test (&mem)
|| mem != 1)
{
puts ("atomic_increment_and_test test 1 failed");
ret = 1;
}
mem = 35;
if (atomic_increment_and_test (&mem)
|| mem != 36)
{
puts ("atomic_increment_and_test test 2 failed");
ret = 1;
}
mem = -1;
if (! atomic_increment_and_test (&mem)
|| mem != 0)
{
puts ("atomic_increment_and_test test 3 failed");
ret = 1;
}
mem = 17;
atomic_decrement (&mem);
if (mem != 16)
{
puts ("atomic_decrement test failed");
ret = 1;
}
if (atomic_decrement_val (&mem) != 15)
{
puts ("atomic_decrement_val test failed");
ret = 1;
}
mem = 0;
if (atomic_decrement_and_test (&mem)
|| mem != -1)
{
puts ("atomic_decrement_and_test test 1 failed");
ret = 1;
}
mem = 15;
if (atomic_decrement_and_test (&mem)
|| mem != 14)
{
puts ("atomic_decrement_and_test test 2 failed");
ret = 1;
}
mem = 1;
if (! atomic_decrement_and_test (&mem)
|| mem != 0)
{
puts ("atomic_decrement_and_test test 3 failed");
ret = 1;
}
mem = 1;
if (atomic_decrement_if_positive (&mem) != 1
|| mem != 0)
{
puts ("atomic_decrement_if_positive test 1 failed");
ret = 1;
}
mem = 0;
if (atomic_decrement_if_positive (&mem) != 0
|| mem != 0)
{
puts ("atomic_decrement_if_positive test 2 failed");
ret = 1;
}
mem = -1;
if (atomic_decrement_if_positive (&mem) != -1
|| mem != -1)
{
puts ("atomic_decrement_if_positive test 3 failed");
ret = 1;
}
mem = -12;
if (! atomic_add_negative (&mem, 10)
|| mem != -2)
{
puts ("atomic_add_negative test 1 failed");
ret = 1;
}
mem = 0;
if (atomic_add_negative (&mem, 100)
|| mem != 100)
{
puts ("atomic_add_negative test 2 failed");
ret = 1;
}
mem = 15;
if (atomic_add_negative (&mem, -10)
|| mem != 5)
{
puts ("atomic_add_negative test 3 failed");
ret = 1;
}
mem = -12;
if (atomic_add_negative (&mem, 14)
|| mem != 2)
{
puts ("atomic_add_negative test 4 failed");
ret = 1;
}
mem = 0;
if (! atomic_add_negative (&mem, -1)
|| mem != -1)
{
puts ("atomic_add_negative test 5 failed");
ret = 1;
}
mem = -31;
if (atomic_add_negative (&mem, 31)
|| mem != 0)
{
puts ("atomic_add_negative test 6 failed");
ret = 1;
}
mem = -34;
if (atomic_add_zero (&mem, 31)
|| mem != -3)
{
puts ("atomic_add_zero test 1 failed");
ret = 1;
}
mem = -36;
if (! atomic_add_zero (&mem, 36)
|| mem != 0)
{
puts ("atomic_add_zero test 2 failed");
ret = 1;
}
mem = 113;
if (atomic_add_zero (&mem, -13)
|| mem != 100)
{
puts ("atomic_add_zero test 3 failed");
ret = 1;
}
mem = -18;
if (atomic_add_zero (&mem, 20)
|| mem != 2)
{
puts ("atomic_add_zero test 4 failed");
ret = 1;
}
mem = 10;
if (atomic_add_zero (&mem, -20)
|| mem != -10)
{
puts ("atomic_add_zero test 5 failed");
ret = 1;
}
mem = 10;
if (! atomic_add_zero (&mem, -10)
|| mem != 0)
{
puts ("atomic_add_zero test 6 failed");
ret = 1;
}
mem = 0;
atomic_bit_set (&mem, 1);
if (mem != 2)
{
puts ("atomic_bit_set test 1 failed");
ret = 1;
}
mem = 8;
atomic_bit_set (&mem, 3);
if (mem != 8)
{
puts ("atomic_bit_set test 2 failed");
ret = 1;
}
#ifdef TEST_ATOMIC64
mem = 16;
atomic_bit_set (&mem, 35);
if (mem != 0x800000010LL)
{
puts ("atomic_bit_set test 3 failed");
ret = 1;
}
#endif
mem = 0;
if (atomic_bit_test_set (&mem, 1)
|| mem != 2)
{
puts ("atomic_bit_test_set test 1 failed");
ret = 1;
}
mem = 8;
if (! atomic_bit_test_set (&mem, 3)
|| mem != 8)
{
puts ("atomic_bit_test_set test 2 failed");
ret = 1;
}
#ifdef TEST_ATOMIC64
mem = 16;
if (atomic_bit_test_set (&mem, 35)
|| mem != 0x800000010LL)
{
puts ("atomic_bit_test_set test 3 failed");
ret = 1;
}
mem = 0x100000000LL;
if (! atomic_bit_test_set (&mem, 32)
|| mem != 0x100000000LL)
{
puts ("atomic_bit_test_set test 4 failed");
ret = 1;
}
#endif
#ifdef catomic_compare_and_exchange_val_acq
mem = 24;
if (catomic_compare_and_exchange_val_acq (&mem, 35, 24) != 24
|| mem != 35)
{
puts ("catomic_compare_and_exchange_val_acq test 1 failed");
ret = 1;
}
mem = 12;
if (catomic_compare_and_exchange_val_acq (&mem, 10, 15) != 12
|| mem != 12)
{
puts ("catomic_compare_and_exchange_val_acq test 2 failed");
ret = 1;
}
mem = -15;
if (catomic_compare_and_exchange_val_acq (&mem, -56, -15) != -15
|| mem != -56)
{
puts ("catomic_compare_and_exchange_val_acq test 3 failed");
ret = 1;
}
mem = -1;
if (catomic_compare_and_exchange_val_acq (&mem, 17, 0) != -1
|| mem != -1)
{
puts ("catomic_compare_and_exchange_val_acq test 4 failed");
ret = 1;
}
#endif
mem = 24;
if (catomic_compare_and_exchange_bool_acq (&mem, 35, 24)
|| mem != 35)
{
puts ("catomic_compare_and_exchange_bool_acq test 1 failed");
ret = 1;
}
mem = 12;
if (! catomic_compare_and_exchange_bool_acq (&mem, 10, 15)
|| mem != 12)
{
puts ("catomic_compare_and_exchange_bool_acq test 2 failed");
ret = 1;
}
mem = -15;
if (catomic_compare_and_exchange_bool_acq (&mem, -56, -15)
|| mem != -56)
{
puts ("catomic_compare_and_exchange_bool_acq test 3 failed");
ret = 1;
}
mem = -1;
if (! catomic_compare_and_exchange_bool_acq (&mem, 17, 0)
|| mem != -1)
{
puts ("catomic_compare_and_exchange_bool_acq test 4 failed");
ret = 1;
}
mem = 2;
if (catomic_exchange_and_add (&mem, 11) != 2
|| mem != 13)
{
puts ("catomic_exchange_and_add test failed");
ret = 1;
}
mem = -21;
catomic_add (&mem, 22);
if (mem != 1)
{
puts ("catomic_add test failed");
ret = 1;
}
mem = -1;
catomic_increment (&mem);
if (mem != 0)
{
puts ("catomic_increment test failed");
ret = 1;
}
mem = 2;
if (catomic_increment_val (&mem) != 3)
{
puts ("catomic_increment_val test failed");
ret = 1;
}
mem = 17;
catomic_decrement (&mem);
if (mem != 16)
{
puts ("catomic_decrement test failed");
ret = 1;
}
if (catomic_decrement_val (&mem) != 15)
{
puts ("catomic_decrement_val test failed");
ret = 1;
}
/* Tests for C11-like atomics. */
mem = 11;
if (atomic_load_relaxed (&mem) != 11 || atomic_load_acquire (&mem) != 11)
{
puts ("atomic_load_{relaxed,acquire} test failed");
ret = 1;
}
atomic_store_relaxed (&mem, 12);
if (mem != 12)
{
puts ("atomic_store_relaxed test failed");
ret = 1;
}
atomic_store_release (&mem, 13);
if (mem != 13)
{
puts ("atomic_store_release test failed");
ret = 1;
}
mem = 14;
expected = 14;
if (!atomic_compare_exchange_weak_relaxed (&mem, &expected, 25)
|| mem != 25 || expected != 14)
{
puts ("atomic_compare_exchange_weak_relaxed test 1 failed");
ret = 1;
}
if (atomic_compare_exchange_weak_relaxed (&mem, &expected, 14)
|| mem != 25 || expected != 25)
{
puts ("atomic_compare_exchange_weak_relaxed test 2 failed");
ret = 1;
}
mem = 14;
expected = 14;
if (!atomic_compare_exchange_weak_acquire (&mem, &expected, 25)
|| mem != 25 || expected != 14)
{
puts ("atomic_compare_exchange_weak_acquire test 1 failed");
ret = 1;
}
if (atomic_compare_exchange_weak_acquire (&mem, &expected, 14)
|| mem != 25 || expected != 25)
{
puts ("atomic_compare_exchange_weak_acquire test 2 failed");
ret = 1;
}
mem = 14;
expected = 14;
if (!atomic_compare_exchange_weak_release (&mem, &expected, 25)
|| mem != 25 || expected != 14)
{
puts ("atomic_compare_exchange_weak_release test 1 failed");
ret = 1;
}
if (atomic_compare_exchange_weak_release (&mem, &expected, 14)
|| mem != 25 || expected != 25)
{
puts ("atomic_compare_exchange_weak_release test 2 failed");
ret = 1;
}
mem = 23;
if (atomic_exchange_acquire (&mem, 42) != 23 || mem != 42)
{
puts ("atomic_exchange_acquire test failed");
ret = 1;
}
mem = 23;
if (atomic_exchange_release (&mem, 42) != 23 || mem != 42)
{
puts ("atomic_exchange_release test failed");
ret = 1;
}
mem = 23;
if (atomic_fetch_add_relaxed (&mem, 1) != 23 || mem != 24)
{
puts ("atomic_fetch_add_relaxed test failed");
ret = 1;
}
mem = 23;
if (atomic_fetch_add_acquire (&mem, 1) != 23 || mem != 24)
{
puts ("atomic_fetch_add_acquire test failed");
ret = 1;
}
mem = 23;
if (atomic_fetch_add_release (&mem, 1) != 23 || mem != 24)
{
puts ("atomic_fetch_add_release test failed");
ret = 1;
}
mem = 23;
if (atomic_fetch_add_acq_rel (&mem, 1) != 23 || mem != 24)
{
puts ("atomic_fetch_add_acq_rel test failed");
ret = 1;
}
mem = 3;
if (atomic_fetch_and_acquire (&mem, 2) != 3 || mem != 2)
{
puts ("atomic_fetch_and_acquire test failed");
ret = 1;
}
mem = 4;
if (atomic_fetch_or_relaxed (&mem, 2) != 4 || mem != 6)
{
puts ("atomic_fetch_or_relaxed test failed");
ret = 1;
}
mem = 4;
if (atomic_fetch_or_acquire (&mem, 2) != 4 || mem != 6)
{
puts ("atomic_fetch_or_acquire test failed");
ret = 1;
}
/* This is a single-threaded test, so we can't test the effects of the
fences. */
atomic_thread_fence_acquire ();
atomic_thread_fence_release ();
atomic_thread_fence_seq_cst ();
return ret;
}
void atomic_dec_16 (volatile uint16_t *target)
{
atomic_decrement (target);
}
static int
do_clone (struct pthread *pd, const struct pthread_attr *attr,
int clone_flags, int (*fct) (void *), STACK_VARIABLES_PARMS,
int stopped)
{
#ifdef PREPARE_CREATE
PREPARE_CREATE;
#endif
if (stopped)
/* We Make sure the thread does not run far by forcing it to get a
lock. We lock it here too so that the new thread cannot continue
until we tell it to. */
lll_lock (pd->lock);
/* One more thread. We cannot have the thread do this itself, since it
might exist but not have been scheduled yet by the time we've returned
and need to check the value to behave correctly. We must do it before
creating the thread, in case it does get scheduled first and then
might mistakenly think it was the only thread. In the failure case,
we momentarily store a false value; this doesn't matter because there
is no kosher thing a signal handler interrupting us right here can do
that cares whether the thread count is correct. */
atomic_increment (&__nptl_nthreads);
if (ARCH_CLONE (fct, STACK_VARIABLES_ARGS, clone_flags,
pd, &pd->tid, TLS_VALUE, &pd->tid) == -1)
{
atomic_decrement (&__nptl_nthreads); /* Oops, we lied for a second. */
/* Failed. If the thread is detached, remove the TCB here since
the caller cannot do this. The caller remembered the thread
as detached and cannot reverify that it is not since it must
not access the thread descriptor again. */
if (IS_DETACHED (pd))
__deallocate_stack (pd);
return errno;
}
/* Now we have the possibility to set scheduling parameters etc. */
if (__builtin_expect (stopped != 0, 0))
{
INTERNAL_SYSCALL_DECL (err);
int res = 0;
/* Set the affinity mask if necessary. */
if (attr->cpuset != NULL)
{
res = INTERNAL_SYSCALL (sched_setaffinity, err, 3, pd->tid,
sizeof (cpu_set_t), attr->cpuset);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
{
/* The operation failed. We have to kill the thread. First
send it the cancellation signal. */
INTERNAL_SYSCALL_DECL (err2);
err_out:
#if __ASSUME_TGKILL
(void) INTERNAL_SYSCALL (tgkill, err2, 3,
THREAD_GETMEM (THREAD_SELF, pid),
pd->tid, SIGCANCEL);
#else
(void) INTERNAL_SYSCALL (tkill, err2, 2, pd->tid, SIGCANCEL);
#endif
return (INTERNAL_SYSCALL_ERROR_P (res, err)
? INTERNAL_SYSCALL_ERRNO (res, err)
: 0);
}
}
/* Set the scheduling parameters. */
if ((attr->flags & ATTR_FLAG_NOTINHERITSCHED) != 0)
{
res = INTERNAL_SYSCALL (sched_setscheduler, err, 3, pd->tid,
pd->schedpolicy, &pd->schedparam);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
goto err_out;
}
}
/* We now have for sure more than one thread. The main thread might
not yet have the flag set. No need to set the global variable
again if this is what we use. */
THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
return 0;
}
void atomic_dec_ushort (volatile unsigned short *target)
{
atomic_decrement (target);
}
void atomic_dec_32 (volatile uint32_t *target)
{
atomic_decrement (target);
}
static int
do_clone (struct pthread *pd, const struct pthread_attr *attr,
int clone_flags, int (*fct) (void *), STACK_VARIABLES_PARMS,
int stopped)
{
#if 0
PREPARE_CREATE;
#endif
if (__builtin_expect (stopped != 0, 0))
/* We make sure the thread does not run far by forcing it to get a
lock. We lock it here too so that the new thread cannot continue
until we tell it to. */
lll_lock (pd->lock, LLL_PRIVATE);
/* One more thread. We cannot have the thread do this itself, since it
might exist but not have been scheduled yet by the time we've returned
and need to check the value to behave correctly. We must do it before
creating the thread, in case it does get scheduled first and then
might mistakenly think it was the only thread. In the failure case,
we momentarily store a false value; this doesn't matter because there
is no kosher thing a signal handler interrupting us right here can do
that cares whether the thread count is correct. */
atomic_increment (&__nptl_nthreads);
#if !defined(__native_client__) && !defined(__ZRT_HOST)
#error "This code was changed to work only in Native Client"
#endif
/* Native Client does not have a notion of a thread ID, so we make
one up. This must be small enough to leave space for number identifying
the clock. Use CLOCK_IDFIELD_SIZE to guarantee that. */
pd->tid = ((unsigned int) pd) >> CLOCK_IDFIELD_SIZE;
/* Native Client syscall thread_create does not push return address onto stack
as opposed to the kernel. We emulate this behavior on x86-64 to meet the
ABI requirement ((%rsp + 8) mod 16 == 0). On x86-32 the attribute
'force_align_arg_pointer' does the same for start_thread (). */
#ifdef __x86_64__
STACK_VARIABLES_ARGS -= 8;
#endif
if (__nacl_irt_thread_create (fct, STACK_VARIABLES_ARGS, pd) != 0)
{
pd->tid = 0;
atomic_decrement (&__nptl_nthreads); /* Oops, we lied for a second. */
/* Failed. If the thread is detached, remove the TCB here since
the caller cannot do this. The caller remembered the thread
as detached and cannot reverify that it is not since it must
not access the thread descriptor again. */
if (IS_DETACHED (pd))
__deallocate_stack (pd);
/* We have to translate error codes. */
return errno == ENOMEM ? EAGAIN : errno;
}
/* Now we have the possibility to set scheduling parameters etc. */
if (__builtin_expect (stopped != 0, 0))
{
INTERNAL_SYSCALL_DECL (err);
int res = 0;
/* Set the affinity mask if necessary. */
if (attr->cpuset != NULL)
{
res = INTERNAL_SYSCALL (sched_setaffinity, err, 3, pd->tid,
attr->cpusetsize, attr->cpuset);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
{
/* The operation failed. We have to kill the thread. First
send it the cancellation signal. */
INTERNAL_SYSCALL_DECL (err2);
err_out:
#if __ASSUME_TGKILL
(void) INTERNAL_SYSCALL (tgkill, err2, 3,
THREAD_GETMEM (THREAD_SELF, pid),
pd->tid, SIGCANCEL);
#else
(void) INTERNAL_SYSCALL (tkill, err2, 2, pd->tid, SIGCANCEL);
#endif
return (INTERNAL_SYSCALL_ERROR_P (res, err)
? INTERNAL_SYSCALL_ERRNO (res, err)
: 0);
}
}
/* Set the scheduling parameters. */
if ((attr->flags & ATTR_FLAG_NOTINHERITSCHED) != 0)
{
res = INTERNAL_SYSCALL (sched_setscheduler, err, 3, pd->tid,
pd->schedpolicy, &pd->schedparam);
if (__builtin_expect (INTERNAL_SYSCALL_ERROR_P (res, err), 0))
goto err_out;
}
}
/* We now have for sure more than one thread. The main thread might
not yet have the flag set. No need to set the global variable
again if this is what we use. */
THREAD_SETMEM (THREAD_SELF, header.multiple_threads, 1);
return 0;
}
