Mercurial > hg > icedtea12
view pulseaudio/src/java/org/classpath/icedtea/pulseaudio/ContextEvent.java @ 2620:1364a03b0f2b
PR1741: Replace pulse audio enums with static longs.
2011-06-16 Denis Lila <dlila@redhat.com>
* Makefile.am: Add ContextEvent to the list of pulse audio classes that
need javah run on them.
* pulseaudio/src/java/org/classpath/icedtea/pulseaudio/ContextEvent.java
(Type): Remove and replace with...
(UNCONNECTED, CONNECTING, AUTHORIZING, SETTING_NAME, READY, FAILED,
TERMINATED): New static long variables replacing enum Type.
(init_constants): New native method to initialize the above variables.
(checkNativeEnumReturn): Make sure that the input is one of the longs
representing the type of ContextEvent.
(type): Change type from Type to long.
(ContextEvent): Take a long argument, instead of a Type.
(getType): Return a long, not a Type.
* pulseaudio/src/java/org/classpath/icedtea/pulseaudio/EventLoop.java
(status): Change from int to long.
(native_set_sink_volume): Remove. It was unimplemented in the JNI side.
(getStatus): Return long instead of int.
(update): Replace int argument with long argument. Remove the switch
statement.
(setVolume): Remove. Unused.
* pulseaudio/src/java/org/classpath/icedtea/pulseaudio/Operation.java
(State): Remove and replace with...
(Running, Done, Cancelled): Static longs, enumerating the possible
operation states.
(init_constants): New native method to initialize the above variables.
(checkNativeOperationState): Make sure that the input is one of the longs
representing the operation state.
(native_get_state): Change return type from int to long.
(getState): Change return type to long; remove switch.
* pulseaudio/src/java/org/classpath/icedtea/pulseaudio/PulseAudioDataLine.java
Remove the names of enums from the names of constants since most of them
were changed to static longs.
* pulseaudio/src/java/org/classpath/icedtea/pulseaudio/PulseAudioMixer.java
Same changes as in PulseAudioDataLine.java.
* pulseaudio/src/java/org/classpath/icedtea/pulseaudio/Stream.java
(State): Remove and replace with...
(UNCONNECTED, CREATING, READY, FAILED, TERMINATED): New static long variables
replacing enum Type.
(init_constants): New native method to initialize the above variables.
(checkNativeStreamState): Make sure that the input is one of the longs
representing the kind of StreamState.
(native_pa_stream_get_state): Change the return from int to long.
(getState): Remove the switch.
* pulseaudio/src/native/jni-common.h
(SET_JAVA_STATIC_LONG_FIELD_TO_PA_ENUM): Macro that sets one of the java
static longs to the corresponding pa_constant.
* pulseaudio/src/native/org_classpath_icedtea_pulseaudio_ContextEvent.c
New file.
(SET_CONTEXT_ENUM): Macro that sets the ContextEvent types.
(Java_org_classpath_icedtea_pulseaudio_ContextEvent_init_1constants):
Implementation of ContextEvent.init_constants.
* pulseaudio/src/native/org_classpath_icedtea_pulseaudio_EventLoop.c
(context_change_callback): Change the fourth argument of GetMethodID
to "(J)V" to reflect the change in the signature of EventLoop.update.
* pulseaudio/src/native/org_classpath_icedtea_pulseaudio_Operation.c
(SET_OP_ENUM): Macro that sets the operation types.
(Java_org_classpath_icedtea_pulseaudio_Operation_init_1constants):
Implementation of Operation.init_constants.
(Java_org_classpath_icedtea_pulseaudio_Operation_native_1get_1state):
Change return type to jlong.
* pulseaudio/src/native/org_classpath_icedtea_pulseaudio_Stream.c
(SET_STREAM_ENUM): Macro that sets the stream states.
(Java_org_classpath_icedtea_pulseaudio_Stream_init_1constants):
Implementation of Stream.init_constants.
(Java_org_classpath_icedtea_pulseaudio_Stream_native_1pa_1stream_1get_1state):
Change return type to jlong.
author | Andrew John Hughes <gnu_andrew@member.fsf.org> |
---|---|
date | Wed, 02 Mar 2016 05:23:53 +0000 |
parents | fa76bb3356e5 |
children |
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/* ContextEvent.java Copyright (C) 2008 Red Hat, Inc. This file is part of IcedTea. IcedTea is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, version 2. IcedTea 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 for more details. You should have received a copy of the GNU General Public License along with IcedTea; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. Linking this library statically or dynamically with other modules is making a combined work based on this library. Thus, the terms and conditions of the GNU General Public License cover the whole combination. As a special exception, the copyright holders of this library give you permission to link this library with independent modules to produce an executable, regardless of the license terms of these independent modules, and to copy and distribute the resulting executable under terms of your choice, provided that you also meet, for each linked independent module, the terms and conditions of the license of that module. An independent module is a module which is not derived from or based on this library. If you modify this library, you may extend this exception to your version of the library, but you are not obligated to do so. If you do not wish to do so, delete this exception statement from your version. */ package org.classpath.icedtea.pulseaudio; import java.util.Arrays; /** * This class encapsulates a change in the PulseAudio's connection context. * * When this event is fired, something has happened to the connection of this * program to the PulseAudio server. */ class ContextEvent { // There are certain enumerations from pulse audio that we need to use in // the java side. For all of these, we declare static longs in the proper // java classes and we use static native methods to initialize them to // the values used by pulse audio. This makes us immune to changes in // the integer values of the enum symbols in pulse audio. /** * Basically, what is the new state of the context * These will be initialized to the proper values in the JNI. */ static long UNCONNECTED = -1, CONNECTING = -1, AUTHORIZING = -1, SETTING_NAME = -1, READY = -1, FAILED = -1, TERMINATED = -1; private static native void init_constants(); static { SecurityWrapper.loadNativeLibrary(); init_constants(); } /** * Throws an IllegalStateException if value is not one of the above * context events. We do this for all pulse audio enumerations that * we need to use in the java side. If pulse audio decides to add * new events/states, we need to add them to the classes. The exception * will let us know. * return the input if there is no error * * @param value is the context event to be checked against one of the known * events. * @return value if it is a known event. Otherwise throw an exception. */ public static long checkNativeEnumReturn(long value) { if (!Arrays.asList( UNCONNECTED, CONNECTING, AUTHORIZING, SETTING_NAME, READY, FAILED, TERMINATED ).contains(value)) { throw new IllegalStateException("Illegal constant for ContextEvent: " + value); } return value; } private long type; public ContextEvent(long type) { this.type = checkNativeEnumReturn(type); } public long getType() { return type; } }