From 3ee3ffc2ff55834fd388dc5635374221e7b4e657 Mon Sep 17 00:00:00 2001
From: malc <av1474@comtv.ru>
Date: Mon, 13 Feb 2012 04:51:07 +0400
Subject: [PATCH] Use proper mechanism for hasdata under Windows

---
 link.c | 11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/link.c b/link.c
index 33328ea..fafbee0 100644
--- a/link.c
+++ b/link.c
@@ -348,13 +348,12 @@ static double now (void)
 
 static int hasdata (void)
 {
-    DWORD ret;
+    BOOL okay;
+    DWORD avail;
 
-    ret = WaitForSingleObject (state.cr, 0);
-    if (ret != WAIT_OBJECT_0 && ret != WAIT_TIMEOUT) {
-        winerr (1, "hasdata, WaitForSingleObject ret=%ld", ret);
-    }
-    return ret == WAIT_OBJECT_0;
+    okay = PeekNamedPipe (state.cr, NULL, 0, NULL, &avail, NULL);
+    if (!okay) winerr (1, "PeekNamedPipe");
+    return avail > 0;
 }
 
 static void readdata (void *p, int size)
-- 
2.11.4.GIT