//监听指定端口，事件参考event.c
//用于监听IPC上线或下线、或响应客户探测
//timeout设置超时时间,>0单位为秒 =0 用不超时 <0单位为微秒
static int listenPort(int port,int timeout)
{
struct soap *serv = soap_new1(SOAP_IO_UDP); // to invoke messages
int ret;
//绑定端口号
if (!soap_valid_socket(soap_bind(serv,NULL,port, 100)))
{
soap_print_fault(serv, stderr);
printf("soap_bind error\n");
ret = -1;
goto ERR0;
}
//加入多播地址
struct ip_mreq mreq;
mreq.imr_multiaddr.s_addr = inet_addr("239.255.255.250");
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
if (setsockopt(serv->socket, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq, sizeof(mreq)) < 0)
{
printf("add multiaddr is error\n");
goto ERR0;
}
//监听
ret = soap_wsdd_listen(serv,timeout);
if(ret!=SOAP_OK)
{
soap_print_fault(serv, stderr);
printf("soap_wsdd_listen error,ret=%d\n",ret);
goto ERR0;
}
printf("soap_wsdd_listen return\n");
ERR0:
soap_end(serv);
soap_free(serv);
return ret;
}
//采用多播形式发送probe，立即返回不阻塞等待事件响应，获取事件响应要主动接下对应的sock或调用soap_wsdd_listen函数，事件参考event.c
//可以接收多个event，用于探测网络中存在的IPC
static int probeMulticast(const char *endpoint, const char * types, const char *scopes,int timeout)
{
struct soap *serv = soap_new1(SOAP_IO_UDP); // to invoke messages
int ret;
const char *id = soap_wsa_rand_uuid(serv);
ret = soap_wsdd_Probe(serv,
SOAP_WSDD_ADHOC,//SOAP_WSDD_ADHOC, // ad-hoc mode
SOAP_WSDD_TO_TS, // to a TS
endpoint, // address of TS; "soap.udp://239.255.255.250:3702"
id, // message ID
NULL, // ReplyTo,表示回应的message ID,因为是主动回发起，所以没有，填NULL
types, //types,搜寻的设备类型"dn:NetworkVideoTransmitter tds:Device"
scopes, //scopes,指定搜索范围，无填 NULL
NULL); //match by，匹配规则，无填 NULL
if(ret!=SOAP_OK)
{
soap_print_fault(serv, stderr);
printf("soap_wsdd_Probe error,ret=%d\n",ret);
goto ERR0;
}
if (!soap_valid_socket(serv->socket))
{
soap_print_fault(serv, stderr);
printf("sock is error\n");
ret = -1;
goto ERR0;
}
serv->master = serv->socket;//必须指定，否则无法监听
ret = soap_wsdd_listen(serv,timeout);
if(ret!=SOAP_OK)
{
soap_print_fault(serv, stderr);
printf("soap_wsdd_listen error,ret=%d\n",ret);
goto ERR0;
}
ERR0:
soap_end(serv);
soap_free(serv);
return ret;
}
int mainloop(soap* serv)
{
return soap_wsdd_listen(serv, -1000000);
}
