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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 /* PrefetchStatus implementation */
     18 
     19 #include "sles_allinclusive.h"
     20 
     21 
     22 static SLresult IPrefetchStatus_GetPrefetchStatus(SLPrefetchStatusItf self, SLuint32 *pStatus)
     23 {
     24     SL_ENTER_INTERFACE
     25 
     26     if (NULL == pStatus) {
     27         result = SL_RESULT_PARAMETER_INVALID;
     28     } else {
     29         IPrefetchStatus *this = (IPrefetchStatus *) self;
     30         interface_lock_peek(this);
     31         SLuint32 status = this->mStatus;
     32         interface_unlock_peek(this);
     33         *pStatus = status;
     34         result = SL_RESULT_SUCCESS;
     35     }
     36 
     37     SL_LEAVE_INTERFACE
     38 }
     39 
     40 
     41 static SLresult IPrefetchStatus_GetFillLevel(SLPrefetchStatusItf self, SLpermille *pLevel)
     42 {
     43     SL_ENTER_INTERFACE
     44 
     45     if (NULL == pLevel) {
     46         result = SL_RESULT_PARAMETER_INVALID;
     47     } else {
     48         IPrefetchStatus *this = (IPrefetchStatus *) self;
     49         interface_lock_peek(this);
     50         SLpermille level = this->mLevel;
     51         interface_unlock_peek(this);
     52         *pLevel = level;
     53         result = SL_RESULT_SUCCESS;
     54     }
     55 
     56     SL_LEAVE_INTERFACE
     57 }
     58 
     59 
     60 static SLresult IPrefetchStatus_RegisterCallback(SLPrefetchStatusItf self,
     61     slPrefetchCallback callback, void *pContext)
     62 {
     63     SL_ENTER_INTERFACE
     64 
     65     IPrefetchStatus *this = (IPrefetchStatus *) self;
     66     interface_lock_exclusive(this);
     67     this->mCallback = callback;
     68     this->mContext = pContext;
     69     interface_unlock_exclusive(this);
     70     result = SL_RESULT_SUCCESS;
     71 
     72     SL_LEAVE_INTERFACE
     73 }
     74 
     75 
     76 static SLresult IPrefetchStatus_SetCallbackEventsMask(SLPrefetchStatusItf self, SLuint32 eventFlags)
     77 {
     78     SL_ENTER_INTERFACE
     79 
     80     IPrefetchStatus *this = (IPrefetchStatus *) self;
     81     interface_lock_poke(this);
     82     this->mCallbackEventsMask = eventFlags;
     83     interface_unlock_poke(this);
     84     result = SL_RESULT_SUCCESS;
     85 
     86     SL_LEAVE_INTERFACE
     87 }
     88 
     89 
     90 static SLresult IPrefetchStatus_GetCallbackEventsMask(SLPrefetchStatusItf self,
     91     SLuint32 *pEventFlags)
     92 {
     93     SL_ENTER_INTERFACE
     94 
     95     if (NULL == pEventFlags) {
     96         result = SL_RESULT_PARAMETER_INVALID;
     97     } else {
     98         IPrefetchStatus *this = (IPrefetchStatus *) self;
     99         interface_lock_peek(this);
    100         SLuint32 callbackEventsMask = this->mCallbackEventsMask;
    101         interface_unlock_peek(this);
    102         *pEventFlags = callbackEventsMask;
    103         result = SL_RESULT_SUCCESS;
    104     }
    105 
    106     SL_LEAVE_INTERFACE
    107 }
    108 
    109 
    110 static SLresult IPrefetchStatus_SetFillUpdatePeriod(SLPrefetchStatusItf self, SLpermille period)
    111 {
    112     SL_ENTER_INTERFACE
    113 
    114     if (0 == period) {
    115         result = SL_RESULT_PARAMETER_INVALID;
    116     } else {
    117         IPrefetchStatus *this = (IPrefetchStatus *) self;
    118         interface_lock_poke(this);
    119         this->mFillUpdatePeriod = period;
    120         interface_unlock_poke(this);
    121         result = SL_RESULT_SUCCESS;
    122     }
    123 
    124     SL_LEAVE_INTERFACE
    125 }
    126 
    127 
    128 static SLresult IPrefetchStatus_GetFillUpdatePeriod(SLPrefetchStatusItf self, SLpermille *pPeriod)
    129 {
    130     SL_ENTER_INTERFACE
    131 
    132     if (NULL == pPeriod) {
    133         result = SL_RESULT_PARAMETER_INVALID;
    134     } else {
    135         IPrefetchStatus *this = (IPrefetchStatus *) self;
    136         interface_lock_peek(this);
    137         SLpermille fillUpdatePeriod = this->mFillUpdatePeriod;
    138         interface_unlock_peek(this);
    139         *pPeriod = fillUpdatePeriod;
    140         result = SL_RESULT_SUCCESS;
    141     }
    142 
    143     SL_LEAVE_INTERFACE
    144 }
    145 
    146 
    147 static const struct SLPrefetchStatusItf_ IPrefetchStatus_Itf = {
    148     IPrefetchStatus_GetPrefetchStatus,
    149     IPrefetchStatus_GetFillLevel,
    150     IPrefetchStatus_RegisterCallback,
    151     IPrefetchStatus_SetCallbackEventsMask,
    152     IPrefetchStatus_GetCallbackEventsMask,
    153     IPrefetchStatus_SetFillUpdatePeriod,
    154     IPrefetchStatus_GetFillUpdatePeriod
    155 };
    156 
    157 void IPrefetchStatus_init(void *self)
    158 {
    159     IPrefetchStatus *this = (IPrefetchStatus *) self;
    160     this->mItf = &IPrefetchStatus_Itf;
    161     this->mStatus = SL_PREFETCHSTATUS_UNDERFLOW;
    162     this->mLevel = 0;
    163     this->mCallback = NULL;
    164     this->mContext = NULL;
    165     this->mCallbackEventsMask = 0;
    166     this->mFillUpdatePeriod = 100;
    167 }
    168