implement usleep for win32

2 files changed, 13 insertions, 30 deletions

diff --git a/main/config.w32.h b/main/config.w32.h
index 48fb39d943..6b5db664b7 100644
--- a/main/config.w32.h
+++ b/main/config.w32.h
@@ -103,7 +103,10 @@
 #undef HAVE_SOLID
 #undef HAVE_LINK
 #undef HAVE_SYMLINK
-#undef HAVE_USLEEP
+
+/* its in win32/time.c */
+#define HAVE_USLEEP 1
+
 #define HAVE_GETCWD 1
 #define HAVE_POSIX_READDIR_R 1
 #define NEED_ISBLANK 1
diff --git a/win32/time.c b/win32/time.c
index 9f07fab862..f77dfd2ff8 100644
--- a/win32/time.c
+++ b/win32/time.c
@@ -126,38 +126,18 @@ PHPAPI int gettimeofday(struct timeval *time_Info, struct timezone *timezone_Inf
 	return 0;
 }
 
-
-/* this usleep isnt exactly accurate but should do ok */
 void usleep(unsigned int useconds)
 {
-struct timeval tnow, tthen, t0;
-
-	gettimeofday(&tthen, NULL);
-    t0 = tthen;
-    tthen.tv_usec += useconds;
-    while (tthen.tv_usec > 1000000) {
-        tthen.tv_usec -= 1000000;
-        tthen.tv_sec++;
-    }
-    
-	if (useconds > 10000) {
-        useconds -= 10000;
-        Sleep(useconds/1000);
-    }
-    
-	while (1) {
-        gettimeofday(&tnow, NULL);
-        if (tnow.tv_sec > tthen.tv_sec) {
-            break;
-        }
-        if (tnow.tv_sec == tthen.tv_sec) {
-            if (tnow.tv_usec > tthen.tv_usec) {
-                break;
-            }
-        }
-    }
-}
+	HANDLE timer;
+	LARGE_INTEGER due;
+
+	due.QuadPart = -useconds * 1000;
+	timer = CreateWaitableTimer(NULL, TRUE, NULL);
 
+	SetWaitableTimer(timer, &due, 0, NULL, NULL, 0);
+	WaitForSingleObject(timer, INFINITE);
+	CloseHandle(timer);
+}
 
 #ifdef HAVE_SETITIMER