Mojo EDK: Introduce MojoQueryHandleSignalsState API

mojo/public/java/system/src/org/chromium/mojo/system/Core.java

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 package org.chromium.mojo.system;
 
-import java.util.List;
-
 /**
  * Core mojo interface giving access to the base operations. See |src/mojo/public/c/system/core.h|
  * for the underlying api.
  */
 public interface Core {
 
     /**
      * Used to indicate an infinite deadline (timeout).
      */
     public static final long DEADLINE_INFINITE = -1;
@@ skipping 103 matching lines @@
 
         /**
          * Returns the satisfiableSignals.
          */
         public HandleSignals getSatisfiableSignals() {
             return mSatisfiableSignals;
         }
     }
 
     /**
-     * Result for the |wait| method.
-     */
-    public static class WaitResult {
-        /**
-         * The result of the wait method.
-         * <p>
-         * |MojoResult.OK| if some signal in |signals| was satisfied (or is already satisfied).
-         * <p>
-         * |MojoResult.DEADLINE_EXCEEDED| if the deadline has passed without any of the signals
-         * being satisfied.
-         * <p>
-         * |MojoResult.CANCELLED| if |handle| is closed concurrently by another thread.
-         * <p>
-         * |MojoResult.FAILED_PRECONDITION| if it is or becomes impossible that any flag in
-         * |signals| will ever be satisfied (for example, if the other endpoint is closed).
-         */
-        private int mMojoResult;
-
-        /**
-         * The signaling state of handles.
-         */
-        private HandleSignalsState mHandleSignalsState;
-
-        /**
-         * Returns the mojoResult.
-         */
-        public int getMojoResult() {
-            return mMojoResult;
-        }
-
-        /**
-         * @param mojoResult the mojoResult to set
-         */
-        public void setMojoResult(int mojoResult) {
-            mMojoResult = mojoResult;
-        }
-
-        /**
-         * Returns the handleSignalsState.
-         */
-        public HandleSignalsState getHandleSignalsState() {
-            return mHandleSignalsState;
-        }
-
-        /**
-         * @param handleSignalsState the handleSignalsState to set
-         */
-        public void setHandleSignalsState(HandleSignalsState handleSignalsState) {
-            mHandleSignalsState = handleSignalsState;
-        }
-    }
-
-    /**
-     * Waits on the given |handle| until the state indicated by |signals| is satisfied or until
-     * |deadline| has passed.
-     *
-     * @return a |WaitResult|.
-     */
-    public WaitResult wait(Handle handle, HandleSignals signals, long deadline);
-
-    /**
-     * Result for the |waitMany| method.
-     */
-    public static class WaitManyResult {
-
-        /**
-         * See |wait| for the different possible values.
-         */
-        private int mMojoResult;
-
-        /**
-         * If |mojoResult| is |MojoResult.OK|, |handleIndex| is the index of the handle for which
-         * some flag was satisfied (or is already satisfied). If |mojoResult| is
-         * |MojoResult.CANCELLED| or |MojoResult.FAILED_PRECONDITION|, |handleIndex| is the index of
-         * the handle for which the issue occurred.
-         */
-        private int mHandleIndex;
-
-        /**
-         * The signaling state of handles. Will not be set if |mojoResult| is
-         * |MOJO_RESULT_INVALID_ARGUMENT| or |MOJO_RESULT_RESOURCE_EXHAUSTED|
-         */
-        private List<HandleSignalsState> mSignalStates;
-
-        /**
-         * Returns the mojoResult.
-         */
-        public int getMojoResult() {
-            return mMojoResult;
-        }
-
-        /**
-         * @param mojoResult the mojoResult to set
-         */
-        public void setMojoResult(int mojoResult) {
-            mMojoResult = mojoResult;
-        }
-
-        /**
-         * Returns the handleIndex.
-         */
-        public int getHandleIndex() {
-            return mHandleIndex;
-        }
-
-        /**
-         * @param handleIndex the handleIndex to set
-         */
-        public void setHandleIndex(int handleIndex) {
-            mHandleIndex = handleIndex;
-        }
-
-        /**
-         * Returns the signalStates.
-         */
-        public List<HandleSignalsState> getSignalStates() {
-            return mSignalStates;
-        }
-
-        /**
-         * @param signalStates the signalStates to set
-         */
-        public void setSignalStates(List<HandleSignalsState> signalStates) {
-            mSignalStates = signalStates;
-        }
-    }
-
-    /**
-     * Waits on handle in |handles| for at least one of them to satisfy the associated
-     * |HandleSignals|, or until |deadline| has passed.
-     *
-     * @returns a |WaitManyResult|.
-     */
-    public WaitManyResult waitMany(List<Pair<Handle, HandleSignals>> handles, long deadline);
-
-    /**
      * Creates a message pipe, which is a bidirectional communication channel for framed data (i.e.,
      * messages), with the given options. Messages can contain plain data and/or Mojo handles.
      *
      * @return the set of handles for the two endpoints (ports) of the message pipe.
      */
     public Pair<MessagePipeHandle, MessagePipeHandle> createMessagePipe(
             MessagePipeHandle.CreateOptions options);
 
     /**
      * Creates a data pipe, which is a unidirectional communication channel for unframed data, with
@@ skipping 34 matching lines @@
     /**
      * Returns a new run loop.
      */
     public RunLoop createDefaultRunLoop();
 
     /**
      * Returns the current run loop if it exists.
      */
     public RunLoop getCurrentRunLoop();
 }