void fiber_io_check(void)
{
if (__thread_fiber != NULL)
return;
acl_assert(acl_pthread_once(&__once_control, thread_init) == 0);
__maxfd = acl_open_limit(0);
if (__maxfd <= 0)
__maxfd = MAXFD;
__thread_fiber = (FIBER_TLS *) acl_mymalloc(sizeof(FIBER_TLS));
__thread_fiber->event = event_create(__maxfd);
__thread_fiber->io_fibers = (ACL_FIBER **)
acl_mycalloc(__maxfd, sizeof(ACL_FIBER *));
__thread_fiber->ev_fiber = acl_fiber_create(fiber_io_loop,
__thread_fiber->event, STACK_SIZE);
__thread_fiber->io_count = 0;
__thread_fiber->nsleeping = 0;
__thread_fiber->io_stop = 0;
acl_ring_init(&__thread_fiber->ev_timer);
if ((unsigned long) acl_pthread_self() == acl_main_thread_self()) {
__main_fiber = __thread_fiber;
atexit(fiber_io_main_free);
} else if (acl_pthread_setspecific(__fiber_key, __thread_fiber) != 0)
acl_msg_fatal("acl_pthread_setspecific error!");
}
static EPOLL_EVENT *epfd_alloc(void)
{
EPOLL_EVENT *ee = acl_mycalloc(1, sizeof(EPOLL_EVENT));
int maxfd = acl_open_limit(0);
if (maxfd <= 0) {
acl_msg_fatal("%s(%d), %s: acl_open_limit error %s",
__FILE__, __LINE__, __FUNCTION__, acl_last_serror());
}
++maxfd;
ee->fds = (EPOLL_CTX **) acl_mymalloc(maxfd * sizeof(EPOLL_CTX *));
ee->nfds = maxfd;
return ee;
}
static int event_limit(int fdsize)
{
const char *myname = "event_limit";
#ifdef ACL_UNIX
if ((fdsize = acl_open_limit(fdsize)) < 0) {
acl_msg_fatal("%s: unable to determine open file limit, err=%s",
myname, acl_last_serror());
}
#else
if (fdsize == 0)
fdsize = 1024;
#endif
if ((unsigned) (fdsize) < FD_SETSIZE / 2 && fdsize < 256)
acl_msg_warn("%s: could allocate space for only %d open files",
myname, fdsize);
acl_msg_info("%s: max fdsize: %d", myname, fdsize);
return fdsize;
}