src/java.base/unix/native/libnio/ch/IOUtil.c

rev 49271 : [mq]: selector-cleanup

@@ -1,7 +1,7 @@
 /*
- * Copyright (c) 2000, 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 2018, Oracle and/or its affiliates. All rights reserved.
  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
  *
  * This code is free software; you can redistribute it and/or modify it
  * under the terms of the GNU General Public License version 2 only, as
  * published by the Free Software Foundation.  Oracle designates this

@@ -102,14 +102,23 @@
         }
     }
     return ((jlong) fd[0] << 32) | (jlong) fd[1];
 }
 
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_IOUtil_write1(JNIEnv *env, jclass cl, jint fd, jbyte b)
+{
+    char c = (char)b;
+    return convertReturnVal(env, write(fd, &c, 1), JNI_FALSE);
+}
+
+
 JNIEXPORT jboolean JNICALL
 Java_sun_nio_ch_IOUtil_drain(JNIEnv *env, jclass cl, jint fd)
 {
-    char buf[128];
+    char buf[16];
     int tn = 0;
 
     for (;;) {
         int n = read(fd, buf, sizeof(buf));
         tn += n;