1 /*
2 * Copyright (c) 2008, 2009, Oracle and/or its affiliates. All rights reserved.
3 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4 *
5 * This code is free software; you can redistribute it and/or modify it
6 * under the terms of the GNU General Public License version 2 only, as
7 * published by the Free Software Foundation. Oracle designates this
8 * particular file as subject to the "Classpath" exception as provided
9 * by Oracle in the LICENSE file that accompanied this code.
10 *
11 * This code is distributed in the hope that it will be useful, but WITHOUT
12 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
13 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
14 * version 2 for more details (a copy is included in the LICENSE file that
15 * accompanied this code).
16 *
17 * You should have received a copy of the GNU General Public License version
18 * 2 along with this work; if not, write to the Free Software Foundation,
19 * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
20 *
21 * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
22 * or visit www.oracle.com if you need additional information or have any
23 * questions.
24 */
25
26 #include "jni.h"
27 #include "jni_util.h"
28 #include "jvm.h"
29 #include "jlong.h"
30 #include "nio_util.h"
31
32 #include "sun_nio_ch_EPollPort.h"
33
34 #include <unistd.h>
35 #include <sys/types.h>
36 #include <sys/socket.h>
37
38 JNIEXPORT void JNICALL
Java_sun_nio_ch_EPollPort_socketpair(JNIEnv * env,jclass clazz,jintArray sv)39 Java_sun_nio_ch_EPollPort_socketpair(JNIEnv* env, jclass clazz, jintArray sv) {
40 int sp[2];
41 if (socketpair(PF_UNIX, SOCK_STREAM, 0, sp) == -1) {
42 JNU_ThrowIOExceptionWithLastError(env, "socketpair failed");
43 } else {
44 jint res[2];
45 res[0] = (jint)sp[0];
46 res[1] = (jint)sp[1];
47 (*env)->SetIntArrayRegion(env, sv, 0, 2, &res[0]);
48 }
49 }
50
51 JNIEXPORT void JNICALL
Java_sun_nio_ch_EPollPort_interrupt(JNIEnv * env,jclass c,jint fd)52 Java_sun_nio_ch_EPollPort_interrupt(JNIEnv *env, jclass c, jint fd) {
53 int res;
54 int buf[1];
55 buf[0] = 1;
56 RESTARTABLE(write(fd, buf, 1), res);
57 if (res < 0) {
58 JNU_ThrowIOExceptionWithLastError(env, "write failed");
59 }
60 }
61
62 JNIEXPORT void JNICALL
Java_sun_nio_ch_EPollPort_drain1(JNIEnv * env,jclass cl,jint fd)63 Java_sun_nio_ch_EPollPort_drain1(JNIEnv *env, jclass cl, jint fd) {
64 int res;
65 char buf[1];
66 RESTARTABLE(read(fd, buf, 1), res);
67 if (res < 0) {
68 JNU_ThrowIOExceptionWithLastError(env, "drain1 failed");
69 }
70 }
71
72 JNIEXPORT void JNICALL
Java_sun_nio_ch_EPollPort_close0(JNIEnv * env,jclass c,jint fd)73 Java_sun_nio_ch_EPollPort_close0(JNIEnv *env, jclass c, jint fd) {
74 int res;
75 RESTARTABLE(close(fd), res);
76 }
77