/* Based on a shallow copy of "in" if not NULL */
struct connection_in *NewIn(void)
{
struct connection_in *now;
// step through head_inbound_list linked list
for (now = head_inbound_list; now != NULL; now = now->next) {
if (now->state == connection_vacant) {
#if OW_MT
my_pthread_mutex_init(&(now->bus_mutex), Mutex.pmattr);
#endif /* OW_MT */
now->state = connection_pending;
return now;
}
}
now = malloc(sizeof(struct connection_in));
if (now != NULL) {
memset(now, 0, sizeof(struct connection_in));
now->next = head_inbound_list; /* put in linked list at start */
head_inbound_list = now;
now->index = count_inbound_connections++;
now->state = connection_pending;
#if OW_MT
my_pthread_mutex_init(&(now->bus_mutex), Mutex.pmattr);
#endif /* OW_MT */
}
return now;
}
static int my_pthread_mutex_lock (pthread_mutex_t *__mutex)
{
pthread_mutex_t *realmutex = (pthread_mutex_t *) *(int *) __mutex;
if (realmutex == NULL) {
#if 0
realmutex = malloc(sizeof(pthread_mutex_t));
*((int *)__mutex) = (int) realmutex;
pthread_mutex_init(realmutex, NULL);
#endif
my_pthread_mutex_init(__mutex, NULL);
}
else if(realmutex == 0x4000) /* recursive static initializer */
{
printf("RECURSIVE STATIC MUTEX: %x (value = %x)\n", __mutex, *(int **)__mutex);
pthread_mutexattr_t my_recursive_mutexattr;
pthread_mutexattr_init(&my_recursive_mutexattr);
pthread_mutexattr_settype(&my_recursive_mutexattr, PTHREAD_MUTEX_RECURSIVE_NP);
my_pthread_mutex_init(__mutex, &my_recursive_mutexattr);
}
else if(realmutex == 0x8000) /* errorcheck static initializer */
{
printf("ERRORCHECK STATIC MUTEX: %x (value = %x)\n", __mutex, *(int **)__mutex);
pthread_mutexattr_t my_recursive_mutexattr;
pthread_mutexattr_init(&my_recursive_mutexattr);
pthread_mutexattr_settype(&my_recursive_mutexattr, PTHREAD_MUTEX_ERRORCHECK_NP);
my_pthread_mutex_init(__mutex, &my_recursive_mutexattr);
}
realmutex = (pthread_mutex_t *) *(int *) __mutex;
return pthread_mutex_lock(realmutex);
}
