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Commit cee3bd4d authored by Jean-Michel Trivi's avatar Jean-Michel Trivi
Browse files

Reset the speech synth singleton to null when the service is destroyed 

so it can be recreated when the service is initialized.
In the interface with the native synthesizer library, close the lib
in the finalizer, delete the global ref to the SynthProxy java object.
parent db7db69a

packages/TtsService/jni/android_tts_SynthProxy.cpp

+36 −28
Original line number Diff line number Diff line
@@ -65,9 +65,9 @@ static Mutex engineMutex; 
// ----------------------------------------------------------------------------

class SynthProxyJniStorage {

    public :

        //jclass                    tts_class;

        jobject                   tts_ref;

        TtsEngine*                mNativeSynthInterface;

        void*                     mEngineLibHandle;

        AudioTrack*               mAudioOut;

        AudioSystem::stream_type  mStreamType;

        uint32_t                  mSampleRate;
@@ -77,9 +77,9 @@ class SynthProxyJniStorage { 
        size_t                    mBufferSize;



        SynthProxyJniStorage() {

            //tts_class = NULL;

            tts_ref = NULL;

            mNativeSynthInterface = NULL;

            mEngineLibHandle = NULL;

            mAudioOut = NULL;

            mStreamType = DEFAULT_TTS_STREAM_TYPE;

            mSampleRate = DEFAULT_TTS_RATE;
@@ -91,11 +91,17 @@ class SynthProxyJniStorage { 
        }



        ~SynthProxyJniStorage() {

            //LOGV("entering ~SynthProxyJniStorage()");

            killAudio();

            if (mNativeSynthInterface) {

                mNativeSynthInterface->shutdown();

                mNativeSynthInterface = NULL;

            }

            if (mEngineLibHandle) {

                //LOGE("~SynthProxyJniStorage(): before close library");

                int res = dlclose(mEngineLibHandle);

                LOGE_IF( res != 0, "~SynthProxyJniStorage(): dlclose returned %d", res);

            }

            delete mBuffer;

        }
@@ -138,13 +144,13 @@ class SynthProxyJniStorage { 
                    0, 0, 0, 0); // not using an AudioTrack callback



            if (mAudioOut->initCheck() != NO_ERROR) {

              LOGI("AudioTrack error");

              LOGE("createAudioOut(): AudioTrack error");

              delete mAudioOut;

              mAudioOut = NULL;

            } else {

              //LOGI("AudioTrack OK");

              mAudioOut->start();

              LOGI("AudioTrack started");

              LOGV("AudioTrack started");

            }

        }

};
@@ -260,15 +266,17 @@ android_tts_SynthProxy_native_setup(JNIEnv *env, jobject thiz, 
    void *engine_lib_handle = dlopen(nativeSoLibNativeString,

            RTLD_NOW | RTLD_LOCAL);

    if (engine_lib_handle == NULL) {

       LOGI("engine_lib_handle==NULL");

       LOGE("android_tts_SynthProxy_native_setup(): engine_lib_handle == NULL");

       // TODO report error so the TTS can't be used

    } else {

        TtsEngine *(*get_TtsEngine)() =

            reinterpret_cast<TtsEngine* (*)()>(dlsym(engine_lib_handle, "getTtsEngine"));



        pJniStorage->mNativeSynthInterface = (*get_TtsEngine)();

        pJniStorage->mEngineLibHandle = engine_lib_handle;



        if (pJniStorage->mNativeSynthInterface) {

            Mutex::Autolock l(engineMutex);

            pJniStorage->mNativeSynthInterface->init(ttsSynthDoneCB);

        }

    }
@@ -287,11 +295,29 @@ android_tts_SynthProxy_native_setup(JNIEnv *env, jobject thiz, 
static void

android_tts_SynthProxy_native_finalize(JNIEnv *env, jobject thiz, jint jniData)

{

    if (jniData) {

    //LOGV("entering android_tts_SynthProxy_finalize()");

    if (jniData == 0) {

        //LOGE("android_tts_SynthProxy_native_finalize(): invalid JNI data");

        return;

    }



    Mutex::Autolock l(engineMutex);



    SynthProxyJniStorage* pSynthData = (SynthProxyJniStorage*)jniData;

    env->DeleteGlobalRef(pSynthData->tts_ref);

    delete pSynthData;



    env->SetIntField(thiz, javaTTSFields.synthProxyFieldJniData, 0);

}





static void

android_tts_SynthProxy_shutdown(JNIEnv *env, jobject thiz, jint jniData)

{

    //LOGV("entering android_tts_SynthProxy_shutdown()");



    // do everything a call to finalize would

    android_tts_SynthProxy_native_finalize(env, thiz, jniData);

}
@@ -604,24 +630,6 @@ android_tts_SynthProxy_stop(JNIEnv *env, jobject thiz, jint jniData) 
}





static void

android_tts_SynthProxy_shutdown(JNIEnv *env, jobject thiz, jint jniData)

{

    if (jniData == 0) {

        LOGE("android_tts_SynthProxy_shutdown(): invalid JNI data");

        return;

    }



    Mutex::Autolock l(engineMutex);



    SynthProxyJniStorage* pSynthData = (SynthProxyJniStorage*)jniData;

    if (pSynthData->mNativeSynthInterface) {

        pSynthData->mNativeSynthInterface->shutdown();

        pSynthData->mNativeSynthInterface = NULL;

    }

}





static jobjectArray

android_tts_SynthProxy_getLanguage(JNIEnv *env, jobject thiz, jint jniData)

{

packages/TtsService/src/android/tts/TtsService.java

+1 −0
Original line number Diff line number Diff line
@@ -174,6 +174,7 @@ public class TtsService extends Service implements OnCompletionListener { 
        cleanUpPlayer();



        sNativeSynth.shutdown();

        sNativeSynth = null;



        // Unregister all callbacks.

        mCallbacks.kill();