void fiber_io_check(void)
{
if (__thread_fiber != NULL) {
if (__thread_fiber->ev_fiber == NULL) {
__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;
ring_init(&__thread_fiber->ev_timer);
}
return;
}
if (pthread_once(&__once_control, thread_init) != 0) {
msg_fatal("%s(%d), %s: pthread_once error %s",
__FILE__, __LINE__, __FUNCTION__, last_serror());
}
var_maxfd = open_limit(0);
if (var_maxfd <= 0) {
var_maxfd = MAXFD;
}
__thread_fiber = (FIBER_TLS *) malloc(sizeof(FIBER_TLS));
__thread_fiber->event = event_create(var_maxfd);
__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;
ring_init(&__thread_fiber->ev_timer);
#ifdef SYS_WIN
__thread_fiber->events = htable_create(var_maxfd);
#else
__thread_fiber->events = (FILE_EVENT **)
calloc(var_maxfd, sizeof(FILE_EVENT*));
#endif
if (__pthread_self() == main_thread_self()) {
__main_fiber = __thread_fiber;
atexit(fiber_io_main_free);
} else if (pthread_setspecific(__fiber_key, __thread_fiber) != 0) {
msg_fatal("pthread_setspecific error!");
}
}
static EPOLL_EVENT *epfd_alloc(void)
{
EPOLL_EVENT *ee = calloc(1, sizeof(EPOLL_EVENT));
int maxfd = open_limit(0);
if (maxfd <= 0) {
msg_fatal("%s(%d), %s: open_limit error %s",
__FILE__, __LINE__, __FUNCTION__, last_serror());
}
++maxfd;
ee->fds = (EPOLL_CTX **) malloc(maxfd * sizeof(EPOLL_CTX *));
ee->nfds = maxfd;
return ee;
}
int closefrom(int lowfd)
{
int fd_limit = open_limit(0);
int fd;
/*
* lowfrom does not have an easy to determine upper limit. A process may
* have files open that were inherited from a parent process with a less
* restrictive resource limit.
*/
if (lowfd < 0) {
errno = EBADF;
return (-1);
}
if (fd_limit > 500)
fd_limit = 500;
for (fd = lowfd; fd < fd_limit; fd++)
(void) close(fd);
return (0);
}
int acl_fiber_set_fdlimit(int limit)
{
return open_limit(limit);
}