--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/aix/native/sun/nio/ch/AixPollPort.c Tue Nov 26 16:40:31 2013 +0100
@@ -0,0 +1,175 @@
+/*
+ * Copyright (c) 2008, 2013, Oracle and/or its affiliates. All rights reserved.
+ * Copyright 2012 SAP AG. 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
+ * particular file as subject to the "Classpath" exception as provided
+ * by Oracle in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
+ * or visit www.oracle.com if you need additional information or have any
+ * questions.
+ */
+
+#include "jni.h"
+#include "jni_util.h"
+#include "jvm.h"
+#include "jlong.h"
+
+#include "sun_nio_ch_AixPollPort.h"
+
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/poll.h>
+#include <sys/pollset.h>
+#include <fcntl.h>
+#include <stddef.h>
+#include <dlfcn.h>
+#include <errno.h>
+
+/* Initially copied from src/solaris/native/sun/nio/ch/nio_util.h */
+#define RESTARTABLE(_cmd, _result) do { \
+ do { \
+ _result = _cmd; \
+ } while((_result == -1) && (errno == EINTR)); \
+} while(0)
+
+typedef pollset_t pollset_create_func(int maxfd);
+typedef int pollset_destroy_func(pollset_t ps);
+typedef int pollset_ctl_func(pollset_t ps, struct poll_ctl *pollctl_array, int array_length);
+typedef int pollset_poll_func(pollset_t ps, struct pollfd *polldata_array, int array_length, int timeout);
+static pollset_create_func* _pollset_create = NULL;
+static pollset_destroy_func* _pollset_destroy = NULL;
+static pollset_ctl_func* _pollset_ctl = NULL;
+static pollset_poll_func* _pollset_poll = NULL;
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_AixPollPort_init(JNIEnv* env, jclass this) {
+ _pollset_create = (pollset_create_func*) dlsym(RTLD_DEFAULT, "pollset_create");
+ _pollset_destroy = (pollset_destroy_func*) dlsym(RTLD_DEFAULT, "pollset_destroy");
+ _pollset_ctl = (pollset_ctl_func*) dlsym(RTLD_DEFAULT, "pollset_ctl");
+ _pollset_poll = (pollset_poll_func*) dlsym(RTLD_DEFAULT, "pollset_poll");
+ if (_pollset_create == NULL || _pollset_destroy == NULL ||
+ _pollset_ctl == NULL || _pollset_poll == NULL) {
+ JNU_ThrowInternalError(env, "unable to get address of pollset functions");
+ }
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_eventSize(JNIEnv* env, jclass this) {
+ return sizeof(struct pollfd);
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_eventsOffset(JNIEnv* env, jclass this) {
+ return offsetof(struct pollfd, events);
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_reventsOffset(JNIEnv* env, jclass this) {
+ return offsetof(struct pollfd, revents);
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_fdOffset(JNIEnv* env, jclass this) {
+ return offsetof(struct pollfd, fd);
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_pollsetCreate(JNIEnv *env, jclass c) {
+ /* pollset_create can take the maximum number of fds, but we
+ * cannot predict this number so we leave it at OPEN_MAX. */
+ pollset_t ps = _pollset_create(-1);
+ if (ps < 0) {
+ JNU_ThrowIOExceptionWithLastError(env, "pollset_create failed");
+ }
+ return (int)ps;
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_pollsetCtl(JNIEnv *env, jclass c, jint ps,
+ jint opcode, jint fd, jint events) {
+ struct poll_ctl event;
+ int res;
+
+ event.cmd = opcode;
+ event.events = events;
+ event.fd = fd;
+
+ RESTARTABLE(_pollset_ctl((pollset_t)ps, &event, 1 /* length */), res);
+
+ return (res == 0) ? 0 : errno;
+}
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_AixPollPort_pollsetPoll(JNIEnv *env, jclass c,
+ jint ps, jlong address, jint numfds) {
+ struct pollfd *events = jlong_to_ptr(address);
+ int res;
+
+ RESTARTABLE(_pollset_poll(ps, events, numfds, -1), res);
+ if (res < 0) {
+ JNU_ThrowIOExceptionWithLastError(env, "pollset_poll failed");
+ }
+ return res;
+}
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_AixPollPort_pollsetDestroy(JNIEnv *env, jclass c, jint ps) {
+ int res;
+ RESTARTABLE(_pollset_destroy((pollset_t)ps), res);
+}
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_AixPollPort_socketpair(JNIEnv* env, jclass clazz, jintArray sv) {
+ int sp[2];
+ if (socketpair(PF_UNIX, SOCK_STREAM, 0, sp) == -1) {
+ JNU_ThrowIOExceptionWithLastError(env, "socketpair failed");
+ } else {
+ jint res[2];
+ res[0] = (jint)sp[0];
+ res[1] = (jint)sp[1];
+ (*env)->SetIntArrayRegion(env, sv, 0, 2, &res[0]);
+ }
+}
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_AixPollPort_interrupt(JNIEnv *env, jclass c, jint fd) {
+ int res;
+ int buf[1];
+ buf[0] = 1;
+ RESTARTABLE(write(fd, buf, 1), res);
+ if (res < 0) {
+ JNU_ThrowIOExceptionWithLastError(env, "write failed");
+ }
+}
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_AixPollPort_drain1(JNIEnv *env, jclass cl, jint fd) {
+ int res;
+ char buf[1];
+ RESTARTABLE(read(fd, buf, 1), res);
+ if (res < 0) {
+ JNU_ThrowIOExceptionWithLastError(env, "drain1 failed");
+ }
+}
+
+JNIEXPORT void JNICALL
+Java_sun_nio_ch_AixPollPort_close0(JNIEnv *env, jclass c, jint fd) {
+ int res;
+ RESTARTABLE(close(fd), res);
+}