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      1 /*
      2  * Copyright (C) 2010 The Android Open Source Project
      3  *
      4  * Licensed under the Apache License, Version 2.0 (the "License");
      5  * you may not use this file except in compliance with the License.
      6  * You may obtain a copy of the License at
      7  *
      8  *      http://www.apache.org/licenses/LICENSE-2.0
      9  *
     10  * Unless required by applicable law or agreed to in writing, software
     11  * distributed under the License is distributed on an "AS IS" BASIS,
     12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     13  * See the License for the specific language governing permissions and
     14  * limitations under the License.
     15  */
     16 
     17 /* 3DCommit implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 
     22 static SLresult I3DCommit_Commit(SL3DCommitItf self)
     23 {
     24     SL_ENTER_INTERFACE
     25 
     26     I3DCommit *thiz = (I3DCommit *) self;
     27     IObject *thisObject = InterfaceToIObject(thiz);
     28     object_lock_exclusive(thisObject);
     29     if (thiz->mDeferred) {
     30         SLuint32 myGeneration = thiz->mGeneration;
     31         do {
     32             ++thiz->mWaiting;
     33             object_cond_wait(thisObject);
     34         } while (thiz->mGeneration == myGeneration);
     35     }
     36     object_unlock_exclusive(thisObject);
     37     result = SL_RESULT_SUCCESS;
     38 
     39     SL_LEAVE_INTERFACE
     40 }
     41 
     42 
     43 static SLresult I3DCommit_SetDeferred(SL3DCommitItf self, SLboolean deferred)
     44 {
     45     SL_ENTER_INTERFACE
     46 
     47     I3DCommit *thiz = (I3DCommit *) self;
     48     IObject *thisObject = InterfaceToIObject(thiz);
     49     object_lock_exclusive(thisObject);
     50     thiz->mDeferred = SL_BOOLEAN_FALSE != deferred; // normalize
     51     object_unlock_exclusive(thisObject);
     52     result = SL_RESULT_SUCCESS;
     53 
     54     SL_LEAVE_INTERFACE
     55 }
     56 
     57 
     58 static const struct SL3DCommitItf_ I3DCommit_Itf = {
     59     I3DCommit_Commit,
     60     I3DCommit_SetDeferred
     61 };
     62 
     63 void I3DCommit_init(void *self)
     64 {
     65     I3DCommit *thiz = (I3DCommit *) self;
     66     thiz->mItf = &I3DCommit_Itf;
     67     thiz->mDeferred = SL_BOOLEAN_FALSE;
     68     thiz->mGeneration = 0;
     69     thiz->mWaiting = 0;
     70 }
     71