Declare more IAudioFlinger methods const

This is just documentation, as C++ method const-ness doesn't mean anything
for a binder API.  Instead, here const means "no side effects".

Change-Id: Iaa9cd2fe477db10ae9a40cac4f79f0faa9b4e5e6

2 files changed, 16 insertions, 14 deletions

diff --git a/services/audioflinger/AudioFlinger.cpp b/services/audioflinger/AudioFlinger.cpp
index f71ba0a..e5f7ad2 100644
--- a/services/audioflinger/AudioFlinger.cpp
+++ b/services/audioflinger/AudioFlinger.cpp
@@ -816,7 +816,7 @@ status_t AudioFlinger::setParameters(int ioHandle, const String8& keyValuePairs)
     return BAD_VALUE;
 }
 
-String8 AudioFlinger::getParameters(int ioHandle, const String8& keys)
+String8 AudioFlinger::getParameters(int ioHandle, const String8& keys) const
 {
 //    ALOGV("getParameters() io %d, keys %s, tid %d, calling tid %d",
 //            ioHandle, keys.string(), gettid(), IPCThreadState::self()->getCallingPid());
@@ -846,7 +846,7 @@ String8 AudioFlinger::getParameters(int ioHandle, const String8& keys)
     return String8("");
 }
 
-size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount)
+size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount) const
 {
     status_t ret = initCheck();
     if (ret != NO_ERROR) {
@@ -856,7 +856,7 @@ size_t AudioFlinger::getInputBufferSize(uint32_t sampleRate, audio_format_t form
     return mPrimaryHardwareDev->get_input_buffer_size(mPrimaryHardwareDev, sampleRate, format, channelCount);
 }
 
-unsigned int AudioFlinger::getInputFramesLost(int ioHandle)
+unsigned int AudioFlinger::getInputFramesLost(int ioHandle) const
 {
     if (ioHandle == 0) {
         return 0;
@@ -891,7 +891,7 @@ status_t AudioFlinger::setVoiceVolume(float value)
     return ret;
 }
 
-status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output)
+status_t AudioFlinger::getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) const
 {
     status_t status;
 
@@ -5413,19 +5413,20 @@ uint32_t AudioFlinger::primaryOutputDevice_l()
 // ----------------------------------------------------------------------------
 
 
-status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects)
+status_t AudioFlinger::queryNumberEffects(uint32_t *numEffects) const
 {
     Mutex::Autolock _l(mLock);
     return EffectQueryNumberEffects(numEffects);
 }
 
-status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor)
+status_t AudioFlinger::queryEffect(uint32_t index, effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);
     return EffectQueryEffect(index, descriptor);
 }
 
-status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor)
+status_t AudioFlinger::getEffectDescriptor(effect_uuid_t *pUuid,
+        effect_descriptor_t *descriptor) const
 {
     Mutex::Autolock _l(mLock);
     return EffectGetDescriptor(pUuid, descriptor);
diff --git a/services/audioflinger/AudioFlinger.h b/services/audioflinger/AudioFlinger.h
index 3f3188c..4db7f15 100644
--- a/services/audioflinger/AudioFlinger.h
+++ b/services/audioflinger/AudioFlinger.h
@@ -105,12 +105,12 @@ public:
     virtual     bool        getMicMute() const;
 
     virtual     status_t    setParameters(int ioHandle, const String8& keyValuePairs);
-    virtual     String8     getParameters(int ioHandle, const String8& keys);
+    virtual     String8     getParameters(int ioHandle, const String8& keys) const;
 
     virtual     void        registerClient(const sp<IAudioFlingerClient>& client);
 
-    virtual     size_t      getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount);
-    virtual     unsigned int  getInputFramesLost(int ioHandle);
+    virtual     size_t      getInputBufferSize(uint32_t sampleRate, audio_format_t format, int channelCount) const;
+    virtual     unsigned int  getInputFramesLost(int ioHandle) const;
 
     virtual int openOutput(uint32_t *pDevices,
                                     uint32_t *pSamplingRate,
@@ -139,7 +139,7 @@ public:
 
     virtual status_t setVoiceVolume(float volume);
 
-    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output);
+    virtual status_t getRenderPosition(uint32_t *halFrames, uint32_t *dspFrames, int output) const;
 
     virtual int newAudioSessionId();
 
@@ -147,11 +147,12 @@ public:
 
     virtual void releaseAudioSessionId(int audioSession);
 
-    virtual status_t queryNumberEffects(uint32_t *numEffects);
+    virtual status_t queryNumberEffects(uint32_t *numEffects) const;
 
-    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor);
+    virtual status_t queryEffect(uint32_t index, effect_descriptor_t *descriptor) const;
 
-    virtual status_t getEffectDescriptor(effect_uuid_t *pUuid, effect_descriptor_t *descriptor);
+    virtual status_t getEffectDescriptor(effect_uuid_t *pUuid,
+                                         effect_descriptor_t *descriptor) const;
 
     virtual sp<IEffect> createEffect(pid_t pid,
                         effect_descriptor_t *pDesc,