8217500: (sc) Move SocketChannelImpl's remaining native methods to Net
authoralanb
Wed, 23 Jan 2019 13:16:16 +0000
changeset 53445 c96f9aa1f3d8
parent 53444 ec8091d12a7e
child 53446 896ddba45177
8217500: (sc) Move SocketChannelImpl's remaining native methods to Net Reviewed-by: bpb
src/java.base/share/classes/sun/nio/ch/Net.java
src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java
src/java.base/unix/native/libnio/ch/Net.c
src/java.base/unix/native/libnio/ch/SocketChannelImpl.c
src/java.base/unix/native/libnio/ch/SocketDispatcher.c
src/java.base/windows/native/libnio/ch/Net.c
src/java.base/windows/native/libnio/ch/SocketChannelImpl.c
src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpChannelImpl.java
src/jdk.sctp/unix/native/libsctp/SctpChannelImpl.c
test/jdk/java/nio/channels/SocketChannel/SendUrgentData.java
--- a/src/java.base/share/classes/sun/nio/ch/Net.java	Wed Jan 23 13:37:12 2019 +0100
+++ b/src/java.base/share/classes/sun/nio/ch/Net.java	Wed Jan 23 13:16:16 2019 +0000
@@ -525,10 +525,27 @@
         throws IOException;
 
     /**
+     * Polls a connecting socket to test if the connection has been established.
+     *
+     * @apiNote This method is public to allow it be used by code in jdk.sctp.
+     *
+     * @param timeout the timeout to wait; 0 to not wait, -1 to wait indefinitely
+     * @return 1 if connected, 0 if not connected, or IOS_INTERRUPTED
+     */
+    public static native int pollConnect(FileDescriptor fd, long timeout)
+        throws IOException;
+
+    /**
      * Return the number of bytes in the socket input buffer.
      */
     static native int available(FileDescriptor fd) throws IOException;
 
+    /**
+     * Send one byte of urgent data (MSG_OOB) on the socket.
+     */
+    static native int sendOOB(FileDescriptor fd, byte data) throws IOException;
+
+
     // -- Multicast support --
 
     /**
--- a/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java	Wed Jan 23 13:37:12 2019 +0100
+++ b/src/java.base/share/classes/sun/nio/ch/SocketChannelImpl.java	Wed Jan 23 13:16:16 2019 +0000
@@ -65,7 +65,7 @@
     implements SelChImpl
 {
     // Used to make native read and write calls
-    private static NativeDispatcher nd;
+    private static final NativeDispatcher nd = new SocketDispatcher();
 
     // Our file descriptor object
     private final FileDescriptor fd;
@@ -517,10 +517,10 @@
                 beginWrite(blocking);
                 if (blocking) {
                     do {
-                        n = sendOutOfBandData(fd, b);
+                        n = Net.sendOOB(fd, b);
                     } while (n == IOStatus.INTERRUPTED && isOpen());
                 } else {
-                    n = sendOutOfBandData(fd, b);
+                    n = Net.sendOOB(fd, b);
                 }
             } finally {
                 endWrite(blocking, n > 0);
@@ -772,10 +772,10 @@
                         int n = 0;
                         if (blocking) {
                             do {
-                                n = checkConnect(fd, true);
+                                n = Net.pollConnect(fd, -1);
                             } while ((n == 0 || n == IOStatus.INTERRUPTED) && isOpen());
                         } else {
-                            n = checkConnect(fd, false);
+                            n = Net.pollConnect(fd, 0);
                         }
                         connected = (n > 0);
                     } finally {
@@ -1112,19 +1112,4 @@
         sb.append(']');
         return sb.toString();
     }
-
-
-    // -- Native methods --
-
-    private static native int checkConnect(FileDescriptor fd, boolean block)
-        throws IOException;
-
-    private static native int sendOutOfBandData(FileDescriptor fd, byte data)
-        throws IOException;
-
-    static {
-        IOUtil.load();
-        nd = new SocketDispatcher();
-    }
-
 }
--- a/src/java.base/unix/native/libnio/ch/Net.c	Wed Jan 23 13:37:12 2019 +0100
+++ b/src/java.base/unix/native/libnio/ch/Net.c	Wed Jan 23 13:16:16 2019 +0000
@@ -719,6 +719,50 @@
     }
 }
 
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_Net_pollConnect(JNIEnv *env, jobject this, jobject fdo, jlong timeout)
+{
+    jint fd = fdval(env, fdo);
+    struct pollfd poller;
+    int result;
+
+    poller.fd = fd;
+    poller.events = POLLOUT;
+    poller.revents = 0;
+    if (timeout < -1) {
+        timeout = -1;
+    } else if (timeout > INT_MAX) {
+        timeout = INT_MAX;
+    }
+
+    result = poll(&poller, 1, (int)timeout);
+
+    if (result > 0) {
+        int error = 0;
+        socklen_t n = sizeof(int);
+        errno = 0;
+        result = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &n);
+        if (result < 0) {
+            return handleSocketError(env, errno);
+        } else if (error) {
+            return handleSocketError(env, error);
+        } else if ((poller.revents & POLLHUP) != 0) {
+            return handleSocketError(env, ENOTCONN);
+        }
+        // connected
+        return 1;
+    } else if (result == 0) {
+        return 0;
+    } else {
+        if (errno == EINTR) {
+            return IOS_INTERRUPTED;
+        } else {
+            JNU_ThrowIOExceptionWithLastError(env, "poll failed");
+            return IOS_THROWN;
+        }
+    }
+}
+
 JNIEXPORT jshort JNICALL
 Java_sun_nio_ch_Net_pollinValue(JNIEnv *env, jclass this)
 {
@@ -755,6 +799,12 @@
     return (jshort)POLLOUT;
 }
 
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_Net_sendOOB(JNIEnv* env, jclass this, jobject fdo, jbyte b)
+{
+    int n = send(fdval(env, fdo), (const void*)&b, 1, MSG_OOB);
+    return convertReturnVal(env, n, JNI_FALSE);
+}
 
 /* Declared in nio_util.h */
 
--- a/src/java.base/unix/native/libnio/ch/SocketChannelImpl.c	Wed Jan 23 13:37:12 2019 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,96 +0,0 @@
-/*
- * 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
- * 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 <netdb.h>
-#include <sys/types.h>
-#include <sys/socket.h>
-#include <stdlib.h>
-#include <errno.h>
-#include <string.h>
-#include <poll.h>
-
-#if __linux__
-#include <netinet/in.h>
-#endif
-
-#include "jni.h"
-#include "jni_util.h"
-#include "net_util.h"
-#include "jvm.h"
-#include "jlong.h"
-#include "sun_nio_ch_SocketChannelImpl.h"
-#include "nio_util.h"
-#include "nio.h"
-
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_SocketChannelImpl_checkConnect(JNIEnv *env, jobject this,
-                                               jobject fdo, jboolean block)
-{
-    int error = 0;
-    socklen_t n = sizeof(int);
-    jint fd = fdval(env, fdo);
-    int result = 0;
-    struct pollfd poller;
-
-    poller.fd = fd;
-    poller.events = POLLOUT;
-    poller.revents = 0;
-    result = poll(&poller, 1, block ? -1 : 0);
-
-    if (result < 0) {
-        if (errno == EINTR) {
-            return IOS_INTERRUPTED;
-        } else {
-            JNU_ThrowIOExceptionWithLastError(env, "poll failed");
-            return IOS_THROWN;
-        }
-    }
-    if (!block && (result == 0))
-        return IOS_UNAVAILABLE;
-
-    if (result > 0) {
-        errno = 0;
-        result = getsockopt(fd, SOL_SOCKET, SO_ERROR, &error, &n);
-        if (result < 0) {
-            return handleSocketError(env, errno);
-        } else if (error) {
-            return handleSocketError(env, error);
-        } else if ((poller.revents & POLLHUP) != 0) {
-            return handleSocketError(env, ENOTCONN);
-        }
-        // connected
-        return 1;
-    }
-    return 0;
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_SocketChannelImpl_sendOutOfBandData(JNIEnv* env, jclass this,
-                                                    jobject fdo, jbyte b)
-{
-    int n = send(fdval(env, fdo), (const void*)&b, 1, MSG_OOB);
-    return convertReturnVal(env, n, JNI_FALSE);
-}
--- a/src/java.base/unix/native/libnio/ch/SocketDispatcher.c	Wed Jan 23 13:37:12 2019 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,34 +0,0 @@
-/*
- * Copyright (c) 2000, 2009, 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.
- */
-
-#include "jni.h"
-#include "jni_util.h"
-#include "jvm.h"
-#include "jlong.h"
-
-/* this is a fake c file to make the build happy since there is no
-   real SocketDispatcher.c file on Solaris but there is on windows. */
-
-static jfieldID fd_fdID;        /* for jint 'fd' in java.io.FileDescriptor */
--- a/src/java.base/windows/native/libnio/ch/Net.c	Wed Jan 23 13:37:12 2019 +0100
+++ b/src/java.base/windows/native/libnio/ch/Net.c	Wed Jan 23 13:16:16 2019 +0000
@@ -77,6 +77,11 @@
              NULL, 0, &bytesReturned, NULL, NULL);
 }
 
+jint handleSocketError(JNIEnv *env, int errorValue)
+{
+    NET_ThrowNew(env, errorValue, NULL);
+    return IOS_THROWN;
+}
 
 JNIEXPORT void JNICALL
 Java_sun_nio_ch_Net_initIDs(JNIEnv *env, jclass clazz)
@@ -607,6 +612,59 @@
     return rv;
 }
 
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_Net_pollConnect(JNIEnv* env, jclass this, jobject fdo, jlong timeout)
+{
+    int optError = 0;
+    int result;
+    int n = sizeof(int);
+    jint fd = fdval(env, fdo);
+    fd_set wr, ex;
+    struct timeval t;
+
+    FD_ZERO(&wr);
+    FD_ZERO(&ex);
+    FD_SET((u_int)fd, &wr);
+    FD_SET((u_int)fd, &ex);
+
+    if (timeout >= 0) {
+        t.tv_sec = (long)(timeout / 1000);
+        t.tv_usec = (timeout % 1000) * 1000;
+    }
+
+    result = select(fd+1, 0, &wr, &ex, (timeout >= 0) ? &t : NULL);
+
+    if (result == SOCKET_ERROR) {
+        handleSocketError(env, WSAGetLastError());
+        return IOS_THROWN;
+    } else if (result == 0) {
+        return 0;
+    } else {
+        // connection established if writable and no error to check
+        if (FD_ISSET(fd, &wr) && !FD_ISSET(fd, &ex)) {
+            return 1;
+        }
+        result = getsockopt((SOCKET)fd,
+                            SOL_SOCKET,
+                            SO_ERROR,
+                            (char *)&optError,
+                            &n);
+        if (result == SOCKET_ERROR) {
+            int lastError = WSAGetLastError();
+            if (lastError == WSAEINPROGRESS) {
+                return IOS_UNAVAILABLE;
+            }
+            NET_ThrowNew(env, lastError, "getsockopt");
+            return IOS_THROWN;
+        }
+        if (optError != NO_ERROR) {
+            handleSocketError(env, optError);
+            return IOS_THROWN;
+        }
+        return 0;
+    }
+}
+
 JNIEXPORT jshort JNICALL
 Java_sun_nio_ch_Net_pollinValue(JNIEnv *env, jclass this)
 {
@@ -642,3 +700,19 @@
 {
     return (jshort)POLLCONN;
 }
+
+JNIEXPORT jint JNICALL
+Java_sun_nio_ch_Net_sendOOB(JNIEnv* env, jclass this, jobject fdo, jbyte b)
+{
+    int n = send(fdval(env, fdo), (const char*)&b, 1, MSG_OOB);
+    if (n == SOCKET_ERROR) {
+        if (WSAGetLastError() == WSAEWOULDBLOCK) {
+            return IOS_UNAVAILABLE;
+        } else {
+            JNU_ThrowIOExceptionWithLastError(env, "send failed");
+            return IOS_THROWN;
+        }
+    } else {
+        return n;
+    }
+}
--- a/src/java.base/windows/native/libnio/ch/SocketChannelImpl.c	Wed Jan 23 13:37:12 2019 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,120 +0,0 @@
-/*
- * 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
- * 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 <windows.h>
-#include <winsock2.h>
-#include <ctype.h>
-#include "jni.h"
-#include "jni_util.h"
-#include "jvm.h"
-#include "jlong.h"
-#include "sun_nio_ch_SocketChannelImpl.h"
-
-#include "nio.h"
-#include "nio_util.h"
-#include "net_util.h"
-
-
-static jfieldID ia_addrID;      /* java.net.InetAddress.address */
-
-JNIEXPORT void JNICALL
-Java_sun_nio_ch_SocketChannelImpl_initIDs(JNIEnv *env, jclass cls)
-{
-    CHECK_NULL(cls = (*env)->FindClass(env, "java/net/InetAddress"));
-    CHECK_NULL(ia_addrID = (*env)->GetFieldID(env, cls, "address", "I"));
-}
-
-jint
-handleSocketError(JNIEnv *env, int errorValue)
-{
-    NET_ThrowNew(env, errorValue, NULL);
-    return IOS_THROWN;
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_SocketChannelImpl_checkConnect(JNIEnv *env, jobject this,
-                                               jobject fdo, jboolean block)
-{
-    int optError = 0;
-    int result;
-    int n = sizeof(int);
-    jint fd = fdval(env, fdo);
-    fd_set wr, ex;
-    struct timeval t = { 0, 0 };
-
-    FD_ZERO(&wr);
-    FD_ZERO(&ex);
-    FD_SET((u_int)fd, &wr);
-    FD_SET((u_int)fd, &ex);
-
-    result = select(fd+1, 0, &wr, &ex, block ? NULL : &t);
-
-    if (result == 0) {  /* timeout */
-        return block ? 0 : IOS_UNAVAILABLE;
-    } else {
-        if (result == SOCKET_ERROR) { /* select failed */
-            handleSocketError(env, WSAGetLastError());
-            return IOS_THROWN;
-        }
-    }
-
-    // connection established if writable and no error to check
-    if (FD_ISSET(fd, &wr) && !FD_ISSET(fd, &ex)) {
-        return 1;
-    }
-
-    result = getsockopt((SOCKET)fd,
-                        SOL_SOCKET,
-                        SO_ERROR,
-                        (char *)&optError,
-                        &n);
-    if (result == SOCKET_ERROR) {
-        int lastError = WSAGetLastError();
-        if (lastError == WSAEINPROGRESS) {
-            return IOS_UNAVAILABLE;
-        }
-        NET_ThrowNew(env, lastError, "getsockopt");
-        return IOS_THROWN;
-    }
-    if (optError != NO_ERROR) {
-        handleSocketError(env, optError);
-        return IOS_THROWN;
-    }
-
-    return 0;
-}
-
-JNIEXPORT jint JNICALL
-Java_sun_nio_ch_SocketChannelImpl_sendOutOfBandData(JNIEnv* env, jclass this,
-                                                    jobject fdo, jbyte b)
-{
-    int n = send(fdval(env, fdo), (const char*)&b, 1, MSG_OOB);
-    if (n == SOCKET_ERROR) {
-        handleSocketError(env, WSAGetLastError());
-        return IOS_THROWN;
-    } else {
-        return n;
-    }
-}
--- a/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpChannelImpl.java	Wed Jan 23 13:37:12 2019 +0100
+++ b/src/jdk.sctp/unix/classes/sun/nio/ch/sctp/SctpChannelImpl.java	Wed Jan 23 13:16:16 2019 +0000
@@ -478,7 +478,7 @@
                             }
                             if (!isBlocking()) {
                                 for (;;) {
-                                    n = checkConnect(fd, false, readyToConnect);
+                                    n = Net.pollConnect(fd, 0);
                                     if (  (n == IOStatus.INTERRUPTED)
                                           && isOpen())
                                         continue;
@@ -486,7 +486,7 @@
                                 }
                             } else {
                                 for (;;) {
-                                    n = checkConnect(fd, true, readyToConnect);
+                                    n = Net.pollConnect(fd, -1);
                                     if (n == 0) {
                                         // Loop in case of
                                         // spurious notifications
@@ -1104,9 +1104,6 @@
             InetAddress addr, int port, int assocId, int streamNumber,
             boolean unordered, int ppid) throws IOException;
 
-    private static native int checkConnect(FileDescriptor fd, boolean block,
-            boolean ready) throws IOException;
-
     static {
         IOUtil.load();   /* loads nio & net native libraries */
         java.security.AccessController.doPrivileged(
--- a/src/jdk.sctp/unix/native/libsctp/SctpChannelImpl.c	Wed Jan 23 13:37:12 2019 +0100
+++ b/src/jdk.sctp/unix/native/libsctp/SctpChannelImpl.c	Wed Jan 23 13:16:16 2019 +0000
@@ -72,10 +72,6 @@
 
 jint handleSocketError(JNIEnv *env, jint errorValue);
 
-/* use SocketChannelImpl's checkConnect implementation */
-extern jint Java_sun_nio_ch_SocketChannelImpl_checkConnect(JNIEnv* env,
-    jobject this, jobject fdo, jboolean block, jboolean ready);
-
 /*
  * Class:     sun_nio_ch_sctp_SctpChannelImpl
  * Method:    initIDs
@@ -598,13 +594,3 @@
     return rv;
 }
 
-/*
- * Class:     sun_nio_ch_sctp_SctpChannelImpl
- * Method:    checkConnect
- * Signature: (Ljava/io/FileDescriptor;ZZ)I
- */
-JNIEXPORT jint JNICALL Java_sun_nio_ch_sctp_SctpChannelImpl_checkConnect
-  (JNIEnv* env, jobject this, jobject fdo, jboolean block, jboolean ready) {
-    return Java_sun_nio_ch_SocketChannelImpl_checkConnect(env, this,
-                                                          fdo, block, ready);
-}
--- a/test/jdk/java/nio/channels/SocketChannel/SendUrgentData.java	Wed Jan 23 13:37:12 2019 +0100
+++ b/test/jdk/java/nio/channels/SocketChannel/SendUrgentData.java	Wed Jan 23 13:16:16 2019 +0000
@@ -1,5 +1,5 @@
 /*
- * Copyright (c) 2015, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2015, 2019, 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
@@ -133,9 +133,7 @@
                             throw new RuntimeException("Unexpected message", ex);
                         }
                     } else if (osName.contains("windows")) {
-                        if (!(ex instanceof SocketException)) {
-                            throw new RuntimeException("Unexpected exception", ex);
-                        } else if (!ex.getMessage().contains("Resource temporarily unavailable")) {
+                        if (!ex.getMessage().equals("Socket buffer full")) {
                             throw new RuntimeException("Unexpected message", ex);
                         }
                     } else {