epoll: add global init function

src/epoll-init.h

@@ -0,0 +1,8 @@
+#ifndef EPOLL_EPOLL_INIT_H_
+#define EPOLL_EPOLL_INIT_H_
+
+#include "internal.h"
+
+EPOLL_INTERNAL int epoll_global_init(void);
+
+#endif /* EPOLL_EPOLL_INIT_H_ */

src/epoll.c

@@ -11,6 +11,10 @@
 
 #define _EPOLL_MAX_COMPLETION_COUNT 64
 
+int epoll_global_init(void) {
+  return 0;
+}
+
 epoll_t epoll_create(void) {
   ep_port_t* port_info;
   HANDLE iocp;

src/init.c

@@ -1,5 +1,6 @@
 #include <stdbool.h>
 
+#include "epoll-init.h"
 #include "error.h"
 #include "init.h"
 #include "nt.h"
@@ -21,7 +22,7 @@ static int _winsock_global_init(void) {
 
 static int _init_once(void) {
   if (_winsock_global_init() < 0 || nt_global_init() < 0 ||
-      reflock_global_init() < 0)
+      reflock_global_init() < 0 || epoll_global_init() < 0)
     return -1;
 
   _initialized = true;