--- a/src/java.base/macosx/native/libnio/ch/KQueueArrayWrapper.c Thu Mar 22 14:10:30 2018 -0700
+++ /dev/null Thu Jan 01 00:00:00 1970 +0000
@@ -1,175 +0,0 @@
-/*
- * Copyright (c) 2011, 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
- * 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.
- */
-
-/*
- * KQueueArrayWrapper.c
- * Implementation of Selector using FreeBSD / Mac OS X kqueues
- * Derived from Sun's DevPollArrayWrapper
- */
-
-
-#include "jni.h"
-#include "jni_util.h"
-#include "jvm.h"
-#include "jlong.h"
-#include "nio_util.h"
-
-#include <sys/types.h>
-#include <sys/event.h>
-#include <sys/time.h>
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_KQueueArrayWrapper_initStructSizes(JNIEnv *env, jclass clazz)
-{
-#define CHECK_EXCEPTION() { \
- if ((*env)->ExceptionCheck(env)) { \
- goto exceptionOccurred; \
- } \
-}
-
-#define CHECK_ERROR_AND_EXCEPTION(_field) { \
- if (_field == NULL) { \
- goto badField; \
- } \
- CHECK_EXCEPTION(); \
-}
-
-
- jfieldID field;
-
- field = (*env)->GetStaticFieldID(env, clazz, "EVFILT_READ", "S");
- CHECK_ERROR_AND_EXCEPTION(field);
- (*env)->SetStaticShortField(env, clazz, field, EVFILT_READ);
- CHECK_EXCEPTION();
-
- field = (*env)->GetStaticFieldID(env, clazz, "EVFILT_WRITE", "S");
- CHECK_ERROR_AND_EXCEPTION(field);
- (*env)->SetStaticShortField(env, clazz, field, EVFILT_WRITE);
- CHECK_EXCEPTION();
-
- field = (*env)->GetStaticFieldID(env, clazz, "SIZEOF_KEVENT", "S");
- CHECK_ERROR_AND_EXCEPTION(field);
- (*env)->SetStaticShortField(env, clazz, field, (short) sizeof(struct kevent));
- CHECK_EXCEPTION();
-
- field = (*env)->GetStaticFieldID(env, clazz, "FD_OFFSET", "S");
- CHECK_ERROR_AND_EXCEPTION(field);
- (*env)->SetStaticShortField(env, clazz, field, (short) offsetof(struct kevent, ident));
- CHECK_EXCEPTION();
-
- field = (*env)->GetStaticFieldID(env, clazz, "FILTER_OFFSET", "S");
- CHECK_ERROR_AND_EXCEPTION(field);
- (*env)->SetStaticShortField(env, clazz, field, (short) offsetof(struct kevent, filter));
- CHECK_EXCEPTION();
- return;
-
-badField:
- return;
-
-exceptionOccurred:
- return;
-
-#undef CHECK_EXCEPTION
-#undef CHECK_ERROR_AND_EXCEPTION
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_KQueueArrayWrapper_init(JNIEnv *env, jobject this)
-{
- int kq = kqueue();
- if (kq < 0) {
- JNU_ThrowIOExceptionWithLastError(env, "KQueueArrayWrapper: kqueue() failed");
- }
- return kq;
-}
-
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_KQueueArrayWrapper_register0(JNIEnv *env, jobject this,
- jint kq, jint fd, jint r, jint w)
-{
- struct kevent changes[2];
- struct kevent errors[2];
- struct timespec dontBlock = {0, 0};
-
- // if (r) then { register for read } else { unregister for read }
- // if (w) then { register for write } else { unregister for write }
- // Ignore errors - they're probably complaints about deleting non-
- // added filters - but provide an error array anyway because
- // kqueue behaves erratically if some of its registrations fail.
- EV_SET(&changes[0], fd, EVFILT_READ, r ? EV_ADD : EV_DELETE, 0, 0, 0);
- EV_SET(&changes[1], fd, EVFILT_WRITE, w ? EV_ADD : EV_DELETE, 0, 0, 0);
- kevent(kq, changes, 2, errors, 2, &dontBlock);
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_KQueueArrayWrapper_kevent0(JNIEnv *env, jobject this, jint kq,
- jlong kevAddr, jint kevCount,
- jlong timeout)
-{
- struct kevent *kevs = (struct kevent *)jlong_to_ptr(kevAddr);
- struct timespec ts;
- struct timespec *tsp;
- int result;
-
- // Java timeout is in milliseconds. Convert to struct timespec.
- // Java timeout == -1 : wait forever : timespec timeout of NULL
- // Java timeout == 0 : return immediately : timespec timeout of zero
- if (timeout >= 0) {
- // For some indeterminate reason kevent(2) has been found to fail with
- // an EINVAL error for timeout values greater than or equal to
- // 100000001000L. To avoid this problem, clamp the timeout arbitrarily
- // to the maximum value of a 32-bit signed integer which is
- // approximately 25 days in milliseconds.
- const jlong timeoutMax = 0x7fffffff; // java.lang.Integer.MAX_VALUE
- if (timeout > timeoutMax) {
- timeout = timeoutMax;
- }
- ts.tv_sec = timeout / 1000;
- ts.tv_nsec = (timeout % 1000) * 1000000; //nanosec = 1 million millisec
- tsp = &ts;
- } else {
- tsp = NULL;
- }
-
- RESTARTABLE(kevent(kq, NULL, 0, kevs, kevCount, tsp), result);
- if (result < 0) {
- JNU_ThrowIOExceptionWithLastError(env,
- "KQueueArrayWrapper: kevent poll failed");
- }
-
- return result;
-}
-
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_KQueueArrayWrapper_interrupt(JNIEnv *env, jclass cls, jint fd)
-{
- char c = 1;
- if (1 != write(fd, &c, 1)) {
- JNU_ThrowIOExceptionWithLastError(env, "KQueueArrayWrapper: interrupt failed");
- }
-}
-