author | redestad |
Wed, 17 Jul 2019 12:35:46 +0200 | |
changeset 55693 | 9a97b1393e72 |
parent 50275 | 69204b98dc3d |
permissions | -rw-r--r-- |
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/* |
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* Copyright (c) 2008, 2019, Oracle and/or its affiliates. All rights reserved. |
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* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. |
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* |
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* This code is free software; you can redistribute it and/or modify it |
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* under the terms of the GNU General Public License version 2 only, as |
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* published by the Free Software Foundation. Oracle designates this |
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* particular file as subject to the "Classpath" exception as provided |
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* by Oracle in the LICENSE file that accompanied this code. |
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* |
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* This code is distributed in the hope that it will be useful, but WITHOUT |
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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* version 2 for more details (a copy is included in the LICENSE file that |
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* accompanied this code). |
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* |
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* You should have received a copy of the GNU General Public License version |
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* 2 along with this work; if not, write to the Free Software Foundation, |
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* Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. |
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* |
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* Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA |
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* or visit www.oracle.com if you need additional information or have any |
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* questions. |
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*/ |
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package sun.nio.fs; |
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import java.nio.file.*; |
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import java.util.*; |
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import java.io.IOException; |
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import jdk.internal.misc.Unsafe; |
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import static sun.nio.fs.UnixNativeDispatcher.*; |
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import static sun.nio.fs.UnixConstants.*; |
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/** |
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* Linux implementation of WatchService based on inotify. |
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* |
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* In summary a background thread polls inotify plus a socket used for the wakeup |
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* mechanism. Requests to add or remove a watch, or close the watch service, |
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* cause the thread to wakeup and process the request. Events are processed |
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* by the thread which causes it to signal/queue the corresponding watch keys. |
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*/ |
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class LinuxWatchService |
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extends AbstractWatchService |
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{ |
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private static final Unsafe unsafe = Unsafe.getUnsafe(); |
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// background thread to read change events |
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private final Poller poller; |
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LinuxWatchService(UnixFileSystem fs) throws IOException { |
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// initialize inotify |
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int ifd = - 1; |
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try { |
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ifd = inotifyInit(); |
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} catch (UnixException x) { |
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String msg = (x.errno() == EMFILE) ? |
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"User limit of inotify instances reached or too many open files" : |
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x.errorString(); |
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throw new IOException(msg); |
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} |
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// configure inotify to be non-blocking |
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// create socketpair used in the close mechanism |
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int sp[] = new int[2]; |
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try { |
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configureBlocking(ifd, false); |
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socketpair(sp); |
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configureBlocking(sp[0], false); |
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} catch (UnixException x) { |
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UnixNativeDispatcher.close(ifd); |
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throw new IOException(x.errorString()); |
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} |
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this.poller = new Poller(fs, this, ifd, sp); |
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this.poller.start(); |
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} |
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@Override |
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WatchKey register(Path dir, |
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WatchEvent.Kind<?>[] events, |
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WatchEvent.Modifier... modifiers) |
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throws IOException |
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{ |
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// delegate to poller |
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return poller.register(dir, events, modifiers); |
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} |
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@Override |
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void implClose() throws IOException { |
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// delegate to poller |
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poller.close(); |
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} |
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/** |
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* WatchKey implementation |
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*/ |
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private static class LinuxWatchKey extends AbstractWatchKey { |
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// inotify descriptor |
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private final int ifd; |
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// watch descriptor |
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private volatile int wd; |
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LinuxWatchKey(UnixPath dir, LinuxWatchService watcher, int ifd, int wd) { |
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super(dir, watcher); |
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this.ifd = ifd; |
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this.wd = wd; |
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} |
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int descriptor() { |
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return wd; |
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} |
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void invalidate(boolean remove) { |
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if (remove) { |
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try { |
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inotifyRmWatch(ifd, wd); |
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} catch (UnixException x) { |
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// ignore |
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122 |
} |
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123 |
} |
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124 |
wd = -1; |
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125 |
} |
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126 |
|
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127 |
@Override |
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128 |
public boolean isValid() { |
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129 |
return (wd != -1); |
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130 |
} |
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131 |
|
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132 |
@Override |
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133 |
public void cancel() { |
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134 |
if (isValid()) { |
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135 |
// delegate to poller |
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136 |
((LinuxWatchService)watcher()).poller.cancel(this); |
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137 |
} |
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|
138 |
} |
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|
139 |
} |
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|
140 |
|
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|
141 |
/** |
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|
142 |
* Background thread to read from inotify |
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|
143 |
*/ |
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144 |
private static class Poller extends AbstractPoller { |
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145 |
/** |
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|
146 |
* struct inotify_event { |
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|
147 |
* int wd; |
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|
148 |
* uint32_t mask; |
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|
149 |
* uint32_t len; |
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|
150 |
* char name __flexarr; // present if len > 0 |
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|
151 |
* } act_t; |
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152 |
*/ |
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|
153 |
private static final int SIZEOF_INOTIFY_EVENT = eventSize(); |
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|
154 |
private static final int[] offsets = eventOffsets(); |
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|
155 |
private static final int OFFSETOF_WD = offsets[0]; |
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|
156 |
private static final int OFFSETOF_MASK = offsets[1]; |
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|
157 |
private static final int OFFSETOF_LEN = offsets[3]; |
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|
158 |
private static final int OFFSETOF_NAME = offsets[4]; |
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|
159 |
|
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|
160 |
private static final int IN_MODIFY = 0x00000002; |
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|
161 |
private static final int IN_ATTRIB = 0x00000004; |
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|
162 |
private static final int IN_MOVED_FROM = 0x00000040; |
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|
163 |
private static final int IN_MOVED_TO = 0x00000080; |
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|
164 |
private static final int IN_CREATE = 0x00000100; |
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|
165 |
private static final int IN_DELETE = 0x00000200; |
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|
166 |
|
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|
167 |
private static final int IN_UNMOUNT = 0x00002000; |
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|
168 |
private static final int IN_Q_OVERFLOW = 0x00004000; |
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|
169 |
private static final int IN_IGNORED = 0x00008000; |
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|
170 |
|
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|
171 |
// sizeof buffer for when polling inotify |
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|
172 |
private static final int BUFFER_SIZE = 8192; |
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|
173 |
|
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|
174 |
private final UnixFileSystem fs; |
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|
175 |
private final LinuxWatchService watcher; |
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|
176 |
|
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|
177 |
// inotify file descriptor |
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|
178 |
private final int ifd; |
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|
179 |
// socketpair used to shutdown polling thread |
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|
180 |
private final int socketpair[]; |
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|
181 |
// maps watch descriptor to Key |
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|
182 |
private final Map<Integer,LinuxWatchKey> wdToKey; |
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|
183 |
// address of read buffer |
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|
184 |
private final long address; |
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|
185 |
|
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|
186 |
Poller(UnixFileSystem fs, LinuxWatchService watcher, int ifd, int[] sp) { |
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|
187 |
this.fs = fs; |
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|
188 |
this.watcher = watcher; |
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|
189 |
this.ifd = ifd; |
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|
190 |
this.socketpair = sp; |
29986
97167d851fc4
8078467: Update core libraries to use diamond with anonymous classes
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parents:
25859
diff
changeset
|
191 |
this.wdToKey = new HashMap<>(); |
2057
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|
192 |
this.address = unsafe.allocateMemory(BUFFER_SIZE); |
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|
193 |
} |
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parents:
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|
194 |
|
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|
195 |
@Override |
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|
196 |
void wakeup() throws IOException { |
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|
197 |
// write to socketpair to wakeup polling thread |
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|
198 |
try { |
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|
199 |
write(socketpair[1], address, 1); |
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|
200 |
} catch (UnixException x) { |
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|
201 |
throw new IOException(x.errorString()); |
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parents:
diff
changeset
|
202 |
} |
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parents:
diff
changeset
|
203 |
} |
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parents:
diff
changeset
|
204 |
|
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|
205 |
@Override |
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|
206 |
Object implRegister(Path obj, |
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parents:
diff
changeset
|
207 |
Set<? extends WatchEvent.Kind<?>> events, |
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|
208 |
WatchEvent.Modifier... modifiers) |
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|
209 |
{ |
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parents:
diff
changeset
|
210 |
UnixPath dir = (UnixPath)obj; |
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parents:
diff
changeset
|
211 |
|
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parents:
diff
changeset
|
212 |
int mask = 0; |
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diff
changeset
|
213 |
for (WatchEvent.Kind<?> event: events) { |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
214 |
if (event == StandardWatchEventKinds.ENTRY_CREATE) { |
2057
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|
215 |
mask |= IN_CREATE | IN_MOVED_TO; |
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|
216 |
continue; |
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parents:
diff
changeset
|
217 |
} |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
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9523
diff
changeset
|
218 |
if (event == StandardWatchEventKinds.ENTRY_DELETE) { |
2057
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|
219 |
mask |= IN_DELETE | IN_MOVED_FROM; |
3acf8e5e2ca0
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changeset
|
220 |
continue; |
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parents:
diff
changeset
|
221 |
} |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
222 |
if (event == StandardWatchEventKinds.ENTRY_MODIFY) { |
2057
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|
223 |
mask |= IN_MODIFY | IN_ATTRIB; |
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parents:
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changeset
|
224 |
continue; |
3acf8e5e2ca0
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parents:
diff
changeset
|
225 |
} |
3acf8e5e2ca0
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parents:
diff
changeset
|
226 |
} |
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parents:
diff
changeset
|
227 |
|
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parents:
diff
changeset
|
228 |
// no modifiers supported at this time |
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diff
changeset
|
229 |
if (modifiers.length > 0) { |
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diff
changeset
|
230 |
for (WatchEvent.Modifier modifier: modifiers) { |
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parents:
diff
changeset
|
231 |
if (modifier == null) |
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diff
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|
232 |
return new NullPointerException(); |
38742
4af80d6e9e4d
8066258: Re-examine com.sun.nio.file to see if it should be a supported API
alanb
parents:
34836
diff
changeset
|
233 |
if (!ExtendedOptions.SENSITIVITY_HIGH.matches(modifier) && |
4af80d6e9e4d
8066258: Re-examine com.sun.nio.file to see if it should be a supported API
alanb
parents:
34836
diff
changeset
|
234 |
!ExtendedOptions.SENSITIVITY_MEDIUM.matches(modifier) && |
4af80d6e9e4d
8066258: Re-examine com.sun.nio.file to see if it should be a supported API
alanb
parents:
34836
diff
changeset
|
235 |
!ExtendedOptions.SENSITIVITY_LOW.matches(modifier)) { |
4af80d6e9e4d
8066258: Re-examine com.sun.nio.file to see if it should be a supported API
alanb
parents:
34836
diff
changeset
|
236 |
return new UnsupportedOperationException("Modifier not supported"); |
4af80d6e9e4d
8066258: Re-examine com.sun.nio.file to see if it should be a supported API
alanb
parents:
34836
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|
237 |
} |
2057
3acf8e5e2ca0
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|
238 |
} |
3acf8e5e2ca0
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parents:
diff
changeset
|
239 |
} |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
240 |
|
3acf8e5e2ca0
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parents:
diff
changeset
|
241 |
// check file is directory |
3acf8e5e2ca0
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parents:
diff
changeset
|
242 |
UnixFileAttributes attrs = null; |
3acf8e5e2ca0
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parents:
diff
changeset
|
243 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
244 |
attrs = UnixFileAttributes.get(dir, true); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
245 |
} catch (UnixException x) { |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
246 |
return x.asIOException(dir); |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
247 |
} |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
248 |
if (!attrs.isDirectory()) { |
13246
a54c4f70775c
7179305: (fs) Method name sun.nio.fs.UnixPath.getPathForExecptionMessage is misspelled
robm
parents:
10368
diff
changeset
|
249 |
return new NotDirectoryException(dir.getPathForExceptionMessage()); |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
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parents:
diff
changeset
|
250 |
} |
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
251 |
|
3acf8e5e2ca0
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alanb
parents:
diff
changeset
|
252 |
// register with inotify (replaces existing mask if already registered) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
253 |
int wd = -1; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
254 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
255 |
NativeBuffer buffer = |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
256 |
NativeBuffers.asNativeBuffer(dir.getByteArrayForSysCalls()); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
257 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
258 |
wd = inotifyAddWatch(ifd, buffer.address(), mask); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
259 |
} finally { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
260 |
buffer.release(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
261 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
262 |
} catch (UnixException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
263 |
if (x.errno() == ENOSPC) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
264 |
return new IOException("User limit of inotify watches reached"); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
265 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
266 |
return x.asIOException(dir); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
267 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
268 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
269 |
// ensure watch descriptor is in map |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
270 |
LinuxWatchKey key = wdToKey.get(wd); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
271 |
if (key == null) { |
8158 | 272 |
key = new LinuxWatchKey(dir, watcher, ifd, wd); |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
273 |
wdToKey.put(wd, key); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
274 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
275 |
return key; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
276 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
277 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
278 |
// cancel single key |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
279 |
@Override |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
280 |
void implCancelKey(WatchKey obj) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
281 |
LinuxWatchKey key = (LinuxWatchKey)obj; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
282 |
if (key.isValid()) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
283 |
wdToKey.remove(key.descriptor()); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
284 |
key.invalidate(true); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
285 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
286 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
287 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
288 |
// close watch service |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
289 |
@Override |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
290 |
void implCloseAll() { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
291 |
// invalidate all keys |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
292 |
for (Map.Entry<Integer,LinuxWatchKey> entry: wdToKey.entrySet()) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
293 |
entry.getValue().invalidate(true); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
294 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
295 |
wdToKey.clear(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
296 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
297 |
// free resources |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
298 |
unsafe.freeMemory(address); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
299 |
UnixNativeDispatcher.close(socketpair[0]); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
300 |
UnixNativeDispatcher.close(socketpair[1]); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
301 |
UnixNativeDispatcher.close(ifd); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
302 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
303 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
304 |
/** |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
305 |
* Poller main loop |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
306 |
*/ |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
307 |
@Override |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
308 |
public void run() { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
309 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
310 |
for (;;) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
311 |
int nReady, bytesRead; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
312 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
313 |
// wait for close or inotify event |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
314 |
nReady = poll(ifd, socketpair[0]); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
315 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
316 |
// read from inotify |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
317 |
try { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
318 |
bytesRead = read(ifd, address, BUFFER_SIZE); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
319 |
} catch (UnixException x) { |
50275
69204b98dc3d
8203369: Check for both EAGAIN and EWOULDBLOCK error codes
igerasim
parents:
47216
diff
changeset
|
320 |
if (x.errno() != EAGAIN && x.errno() != EWOULDBLOCK) |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
321 |
throw x; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
322 |
bytesRead = 0; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
323 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
324 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
325 |
// iterate over buffer to decode events |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
326 |
int offset = 0; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
327 |
while (offset < bytesRead) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
328 |
long event = address + offset; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
329 |
int wd = unsafe.getInt(event + OFFSETOF_WD); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
330 |
int mask = unsafe.getInt(event + OFFSETOF_MASK); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
331 |
int len = unsafe.getInt(event + OFFSETOF_LEN); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
332 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
333 |
// file name |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
334 |
UnixPath name = null; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
335 |
if (len > 0) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
336 |
int actual = len; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
337 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
338 |
// null-terminated and maybe additional null bytes to |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
339 |
// align the next event |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
340 |
while (actual > 0) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
341 |
long last = event + OFFSETOF_NAME + actual - 1; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
342 |
if (unsafe.getByte(last) != 0) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
343 |
break; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
344 |
actual--; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
345 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
346 |
if (actual > 0) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
347 |
byte[] buf = new byte[actual]; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
348 |
unsafe.copyMemory(null, event + OFFSETOF_NAME, |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
349 |
buf, Unsafe.ARRAY_BYTE_BASE_OFFSET, actual); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
350 |
name = new UnixPath(fs, buf); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
351 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
352 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
353 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
354 |
// process event |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
355 |
processEvent(wd, mask, name); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
356 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
357 |
offset += (SIZEOF_INOTIFY_EVENT + len); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
358 |
} |
34836
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
359 |
|
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
360 |
// process any pending requests |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
361 |
if ((nReady > 1) || (nReady == 1 && bytesRead == 0)) { |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
362 |
try { |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
363 |
read(socketpair[0], address, BUFFER_SIZE); |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
364 |
boolean shutdown = processRequests(); |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
365 |
if (shutdown) |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
366 |
break; |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
367 |
} catch (UnixException x) { |
50275
69204b98dc3d
8203369: Check for both EAGAIN and EWOULDBLOCK error codes
igerasim
parents:
47216
diff
changeset
|
368 |
if (x.errno() != EAGAIN && x.errno() != EWOULDBLOCK) |
34836
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
369 |
throw x; |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
370 |
} |
0fd9d2684eb6
8145981: (fs) LinuxWatchService can reports events against wrong directory
sebastian
parents:
33674
diff
changeset
|
371 |
} |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
372 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
373 |
} catch (UnixException x) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
374 |
x.printStackTrace(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
375 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
376 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
377 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
378 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
379 |
/** |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
380 |
* map inotify event to WatchEvent.Kind |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
381 |
*/ |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
382 |
private WatchEvent.Kind<?> maskToEventKind(int mask) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
383 |
if ((mask & IN_MODIFY) > 0) |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
384 |
return StandardWatchEventKinds.ENTRY_MODIFY; |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
385 |
if ((mask & IN_ATTRIB) > 0) |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
386 |
return StandardWatchEventKinds.ENTRY_MODIFY; |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
387 |
if ((mask & IN_CREATE) > 0) |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
388 |
return StandardWatchEventKinds.ENTRY_CREATE; |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
389 |
if ((mask & IN_MOVED_TO) > 0) |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
390 |
return StandardWatchEventKinds.ENTRY_CREATE; |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
391 |
if ((mask & IN_DELETE) > 0) |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
392 |
return StandardWatchEventKinds.ENTRY_DELETE; |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
393 |
if ((mask & IN_MOVED_FROM) > 0) |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
394 |
return StandardWatchEventKinds.ENTRY_DELETE; |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
395 |
return null; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
396 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
397 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
398 |
/** |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
399 |
* Process event from inotify |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
400 |
*/ |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
401 |
private void processEvent(int wd, int mask, final UnixPath name) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
402 |
// overflow - signal all keys |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
403 |
if ((mask & IN_Q_OVERFLOW) > 0) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
404 |
for (Map.Entry<Integer,LinuxWatchKey> entry: wdToKey.entrySet()) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
405 |
entry.getValue() |
9679
d98ae8bc45fc
7042979: Rename StandardSocketOption and StandardWatchEventKind
alanb
parents:
9523
diff
changeset
|
406 |
.signalEvent(StandardWatchEventKinds.OVERFLOW, null); |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
407 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
408 |
return; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
409 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
410 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
411 |
// lookup wd to get key |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
412 |
LinuxWatchKey key = wdToKey.get(wd); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
413 |
if (key == null) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
414 |
return; // should not happen |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
415 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
416 |
// file deleted |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
417 |
if ((mask & IN_IGNORED) > 0) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
418 |
wdToKey.remove(wd); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
419 |
key.invalidate(false); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
420 |
key.signal(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
421 |
return; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
422 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
423 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
424 |
// event for directory itself |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
425 |
if (name == null) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
426 |
return; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
427 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
428 |
// map to event and queue to key |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
429 |
WatchEvent.Kind<?> kind = maskToEventKind(mask); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
430 |
if (kind != null) { |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
431 |
key.signalEvent(kind, name); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
432 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
433 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
434 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
435 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
436 |
// -- native methods -- |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
437 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
438 |
// sizeof inotify_event |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
439 |
private static native int eventSize(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
440 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
441 |
// offsets of inotify_event |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
442 |
private static native int[] eventOffsets(); |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
443 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
444 |
private static native int inotifyInit() throws UnixException; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
445 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
446 |
private static native int inotifyAddWatch(int fd, long pathAddress, int mask) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
447 |
throws UnixException; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
448 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
449 |
private static native void inotifyRmWatch(int fd, int wd) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
450 |
throws UnixException; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
451 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
452 |
private static native void configureBlocking(int fd, boolean blocking) |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
453 |
throws UnixException; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
454 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
455 |
private static native void socketpair(int[] sv) throws UnixException; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
456 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
457 |
private static native int poll(int fd1, int fd2) throws UnixException; |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
458 |
|
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
459 |
static { |
55693
9a97b1393e72
8227587: Add internal privileged System.loadLibrary
redestad
parents:
50275
diff
changeset
|
460 |
jdk.internal.loader.BootLoader.loadLibrary("nio"); |
2057
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
461 |
} |
3acf8e5e2ca0
6781363: New I/O: Update socket-channel API to jsr203/nio2-b99
alanb
parents:
diff
changeset
|
462 |
} |