/* AudioDaemon.h

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#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <fcntl.h>
#include <vector>

#include <utils/threads.h>
#include <utils/String8.h>


namespace android {

enum notify_status {
    snd_card_online,
    snd_card_offline,
    cpe_online,
    cpe_offline
};

enum notify_status_type {
    SND_CARD_STATE,
    CPE_STATE
};

enum audio_event_status {audio_event_on, audio_event_off};

#define AUDIO_PARAMETER_KEY_EXT_AUDIO_DEVICE "ext_audio_device"

class AudioDaemon:public Thread, public IBinder :: DeathRecipient
{
    /*Overrides*/
    virtual bool        threadLoop();
    virtual status_t    readyToRun();
    virtual void        onFirstRef();
    virtual void        binderDied(const wp < IBinder > &who);

    bool processUeventMessage();
    void notifyAudioSystem(int snd_card,
                           notify_status status,
                           notify_status_type type);
    void notifyAudioSystemEventStatus(const char* event, audio_event_status status);
    int mUeventSock;
    bool getStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
    void putStateFDs(std::vector<std::pair<int,int> > &sndcardFdPair);
    bool getDeviceEventFDs();
    void putDeviceEventFDs();
    void checkEventState(int fd, int index);

public:
    AudioDaemon();
    virtual ~AudioDaemon();

private:
    std::vector<std::pair<int,int> > mSndCardFd;

    //file descriptors for audio device events and their statuses
    std::vector<std::pair<String8, int> > mAudioEvents;
    std::vector<std::pair<String8, int> > mAudioEventsStatus;

};

}