win32.c: static API pointers

* win32/win32.c (rb_w32_inet_ntop, rb_w32_inet_): make the API pointers static not to get the address everytime. git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@55816 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
shyouhei · Aug 5, 2016 · 518af61 · 518af61
1 parent bd46ad2
commit 518af61
Showing 1 changed file with 6 additions and 4 deletions.
diff --git a/win32/win32.c b/win32/win32.c
@@ -7505,8 +7505,9 @@ const char * WSAAPI
 rb_w32_inet_ntop(int af, const void *addr, char *numaddr, size_t numaddr_len)
 {
     typedef char *(WSAAPI inet_ntop_t)(int, void *, char *, size_t);
-    inet_ntop_t *pInetNtop;
-    pInetNtop = (inet_ntop_t *)get_proc_address("ws2_32", "inet_ntop", NULL);
+    static inet_ntop_t *pInetNtop = (inet_ntop_t *)-1;
+    if (pInetNtop == (inet_ntop_t *)-1)
+	pInetNtop = (inet_ntop_t *)get_proc_address("ws2_32", "inet_ntop", NULL);
     if (pInetNtop) {
 	return pInetNtop(af, (void *)addr, numaddr, numaddr_len);
     }
@@ -7523,8 +7524,9 @@ int WSAAPI
 rb_w32_inet_pton(int af, const char *src, void *dst)
 {
     typedef int (WSAAPI inet_pton_t)(int, const char*, void *);
-    inet_pton_t *pInetPton;
-    pInetPton = (inet_pton_t *)get_proc_address("ws2_32", "inet_pton", NULL);
+    static inet_pton_t *pInetPton = (inet_pton_t *)-1;
+    if (pInetPton == (inet_pton_t *)-1)
+	pInetPton = (inet_pton_t *)get_proc_address("ws2_32", "inet_pton", NULL);
     if (pInetPton) {
 	return pInetPton(af, src, dst);
     }