status_machine(用于状态管理)

/*	file name	: status_machine.c
author		: zhongjun
description	: status_machine demo
data		: 20150630
time		: AM 10:06
key(study)	: 预处理器 & enum & typedef & struct & malloc & memset
*/

#include <stdio.h>

#define DEBUG_STATUS
#ifdef DEBUG_STATUS
#define DEBUG(x) {printf x;}
#define STATUS_DEBUG(x) DEBUG(x)
#else
#define STATUS_DEBUG(x)
#endif

typedef enum {
HF_INITIALISING,
HF_READY,
HF_DISCONNECTING,
HF_CONNECTING,
HF_CONNECTED,
HF_INCOMING_CALL_ESTABLISH,
HF_OUTGOING_CALL_ESTABLISH,
HF_ACTIVE_CALL,
HF_3WAY_CALL_WAITING,
HF_3WAY_MULTICALL,
HF_3WAY_CALL_ON_HOLD,
HF_INCOMING_CALL_ON_HOLD
} AnwHfStateType;

typedef struct
{
AnwHfStateType		hfpstate ;

unsigned char		SCO_Link_connect :8;
unsigned char		answerButton_ChangeTo_Transfer :8;

}AnwDeviceManager;

AnwDeviceManager  *devicemanager ;

void SetHfpState ( AnwHfStateType state );
AnwDeviceManager*  GetDeviceManager(void);

int main()
{
devicemanager = (AnwDeviceManager*)malloc(sizeof(AnwDeviceManager));
memset(devicemanager, 0, sizeof(AnwDeviceManager));

devicemanager->hfpstate = HF_READY;
SetHfpState(HF_CONNECTED);
return 0;
}

void SetHfpState (AnwHfStateType state)
{
devicemanager->hfpstate = state;

STATUS_DEBUG(("Set HfpState (%d)\n", state));
}

AnwDeviceManager*  GetDeviceManager(void)
{
return devicemanager;
}