int RTSP_ControlExit()
{
SetRTSPStreamingOFF();
if(DestroySem(hndlRTSP_Sem) != 0){
return -1;
}
hndlRTSP_Sem = NULL;
return 0;
}
/**
* @brief Alarm server main loop
* @param qid [I ] Message queue ID used to receive alarm message.
* @param hAlarmSem [I ] Semaphore to control access to alarm server globals.
* @return 0 on alarm server normal end.
*/
int alarm_main_loop(int qid, int audQid, SemHandl_t hAlarmSem)
{
ALARM_MSG_BUF msgbuf;
int msg_size,ret = 0;
AlarmParam_t* pEvironment;
pthread_t thread;
pAlarmSysInfo = GetSysInfo();
if((hGIOSem = MakeSem()) == NULL){
return -1;
}
while(1){
/* Get Message */
msg_size = msgrcv( qid, &msgbuf, sizeof(msgbuf) - sizeof(long),
MSG_TYPE_MSG1, 0);
if( msg_size < 0 ){
printf("Alarm Receive msg fail \n");
ret = -1;
break;
} else if(msgbuf.src == MSG_TYPE_MSG1 || msgbuf.src < 0){
printf("Got Error message\n");
ret = -1;
break;
} else if(msgbuf.event == ALARM_EVENT_QUIT){
printf("Recieved Quit event\n");
break;
} else if(IsRestart()){
// If already restart flag is set then ignore the messages
continue;
} else {
/* Process alarm event */
pEvironment = (AlarmParam_t*)malloc(sizeof(AlarmParam_t));
if(pEvironment == NULL){
printf("Error: More memory need for Alarm server\n");
break;
}
pEvironment -> msg_id = qid;
pEvironment -> audMsg_id = audQid;
pEvironment->hAlarmSem = hAlarmSem;
memcpy(&pEvironment -> msg_buf, &msgbuf, sizeof(msgbuf));
if((ret = pthread_create(&thread, NULL, ProcAlarmThread, pEvironment)) != 0){
free(pEvironment);
printf("Error: Alarm server creat thread fail\n");
break;
}
pthread_detach(thread);
}
}
DestroySem(hGIOSem);
return ret;
}
/**
* @brief Resource releasing of the message driver for Appro interface
*
*
*
* @return 0 is ok and -1 is error
*
*
*/
int ApproDrvExit()
{
fprintf(stderr, "%s: %d\n", __func__, gProcId);
gProcId = MSG_TYPE_MSG1;
DestroySem(hndlApproDrvSem);
hndlApproDrvSem = NULL;
#if ENABLE_CMEM
if( Testflag != 0 )
{
CMEM_exit();
}
Testflag = 0;;
return 0;
#else
return 0;
#endif
}
/**
* @breif Schedule manager initial.
* @param pSysInfo [I] Pointer to system info.
* @return 0 on success
*/
int ScheduleMngInit(SysInfo *pSysInfo)
{
if (gSemSchedule == NULL)
{
gSemSchedule = MakeSem();
}
if (gSemSchedule == NULL)
{
return - 1;
}
if (pthread_create(&gScheduleThread, NULL, scheduleThrFxn, pSysInfo))
{
DestroySem(gSemSchedule);
__E("scheduleThread create fail\n");
return - 1;
}
__D("scheduleThread created\n");
return 0;
}
int main(void)
{
key_t key; /*信号量的键值*/
int semid; /*信号量的ID*/
char i;
int value = 0;
key = ftok("/ipc/sem",'a'); /*建立信号量的键值*/
semid = CreateSem(key,100); /*建立信号量*/
for (i = 0;i <= 3;i++){ /*对信号量进行3次增减操作*/
Sem_P(semid); /*增加信号量*/
Sem_V(semid); /*减小信号量*/
}
value = GetvalueSem(semid); /*获得信号量的值*/
printf("信号量值为:%d\n",value); /*打印结果*/
DestroySem(semid); /*销毁信号量*/
return 0;
}
/**
* @brief Initiliztion of the message driver for Appro interface
*
*
* @param proc_id message type id of the proceess, defined at ipnc_app/include/Stream_Msg_Def.h
*
* @return 0 is ok and -1 is error
*
*
*/
int ApproDrvInit(int proc_id)
{
if(proc_id < MSG_TYPE_MSG1 || proc_id > 20){
gProcId = MSG_TYPE_MSG1;
return -1;
}
gProcId = proc_id;
fprintf(stderr, "%s: %d\n", __func__, proc_id);
#if ENABLE_CMEM
/* CMEM only one init is allowed in each process */
if(Testflag==0)
{
if(CMEM_init() < 0){
gProcId = MSG_TYPE_MSG1;
return -1;
}
}
#endif
Testflag = 1;;
if(hndlApproDrvSem == NULL)
hndlApproDrvSem = MakeSem();
if(hndlApproDrvSem == NULL){
#if ENABLE_CMEM
CMEM_exit();
#endif
gProcId = MSG_TYPE_MSG1;
return -1;
}
printf("Msg_Init Begin\n");
if((qid=Msg_Init(MSG_KEY)) < 0){
DestroySem(hndlApproDrvSem);
hndlApproDrvSem = NULL;
#if ENABLE_CMEM
CMEM_exit();
#endif
gProcId = MSG_TYPE_MSG1;
return -1;
}
printf("Msg_Init Done\n");
return 0;
}
/**
* @brief Main thread of alarm server.
* @param arg [I ] Not used.
* @return 0 on alarm server normal end.
*/
void *AlramThread(void *arg) {
int qid;
int audQid;
SemHandl_t hAlarmSem;
pthread_t thread;
void *ret;
qid = Msg_Init(ALARM_KEY);
if(qid < 0)
return PROC_FAIL;
audQid = Msg_Init(AUD_MSG_KEY);
if(audQid < 0)
return PROC_FAIL;
hAlarmSem = MakeSem();
if(hAlarmSem == NULL){
Msg_Kill(qid);
return PROC_FAIL;
}
hAlarmStatusSem = MakeSem();
if(hAlarmStatusSem == NULL){
DestroySem(hAlarmSem);
Msg_Kill(qid);
return PROC_FAIL;
}
audioSem = MakeSem();
if(audioSem == NULL){
DestroySem(hAlarmStatusSem);
DestroySem(hAlarmSem);
Msg_Kill(qid);
return PROC_FAIL;
}
if(pthread_create(&thread, NULL, AlramScheduler, NULL)){
DestroySem(hAlarmStatusSem);
DestroySem(audioSem);
DestroySem(hAlarmSem);
Msg_Kill(qid);
return PROC_FAIL;
}
if(AviMngInit()){
AlarmScheduleExit();
pthread_join(thread, &ret);
DestroySem(hAlarmStatusSem);
DestroySem(audioSem);
DestroySem(hAlarmSem);
Msg_Kill(qid);
return PROC_FAIL;
}
if(JpgMngInit()){
AviMngExit();
AlarmScheduleExit();
pthread_join(thread, &ret);
DestroySem(hAlarmStatusSem);
DestroySem(audioSem);
DestroySem(hAlarmSem);
Msg_Kill(qid);
return PROC_FAIL;
}
if(FileDispatcherInit()){
JpgMngExit();
AviMngExit();
AlarmScheduleExit();
pthread_join(thread, &ret);
DestroySem(hAlarmStatusSem);
DestroySem(audioSem);
DestroySem(hAlarmSem);
Msg_Kill(qid);
return PROC_FAIL;
}
alarm_main_loop(qid, audQid, hAlarmSem);
AviMngExit();
JpgMngExit();
FileDispatcherExit();
DestroySem(hAlarmStatusSem);
DestroySem(audioSem);
DestroySem(hAlarmSem);
Msg_Kill(qid);
Msg_Kill(audQid);
return PROC_SUCESS;
}
