linux下多线程udp编程及库编译调用方法

unsigned char EncBoardIP[4];

typedef struct
{
int  Socket;
int  DecPort;
int  EncPort;
char *DecIp;
char *EncIp;
}SockStruct;

void InitNet(char * EncIP,char * DecIP) 
{
unsigned long LIP;
unsigned char * BoardIP ;


LIP =  inet_addr(EncIP);
BoardIP = (unsigned char*) &LIP;

EncBoardIP[0] = BoardIP[0];
EncBoardIP[1] = BoardIP[1];
EncBoardIP[2] = BoardIP[2];
EncBoardIP[3] = BoardIP[3];



SockConnect.EncIp = EncIP;
SockConnect.DecIp = DecIP;
SockConnect.EncPort  = 10000;
SockConnect.DecPort = 20000;

CreateSocket(&SockConnect);

}




int CreateSocket(SockStruct *sockfd_all)
{
struct sockaddr_in ser_addr,cli_addr;

if((sockfd_all->Socket= socket(AF_INET,SOCK_DGRAM,0)) == -1)
{
perror("socket");
exit(-1);
}
bzero(&ser_addr,sizeof(ser_addr));
ser_addr.sin_family  = AF_INET;
ser_addr.sin_addr.s_addr = inet_addr((sockfd_all->DecIp));
ser_addr.sin_port  = htons(sockfd_all->DecPort);


bzero(&cli_addr,sizeof(cli_addr));
cli_addr.sin_family = AF_INET;
cli_addr.sin_addr.s_addr = inet_addr((sockfd_all->EncIp));
cli_addr.sin_port = htons(sockfd_all->EncPort);


if((bind(sockfd_all->Socket,(struct sockaddr *)&cli_addr,sizeof(cli_addr))) == -1)
{
perror("bind");
exit(-1);
}


if((connect(sockfd_all->Socket,(struct sockaddr *)&ser_addr,sizeof(ser_addr))) == -1)
{
perror("connect");
exit(-1);
}


return 0;
}

void* RecvThread(void* arg)
{

while(Flag)
{
if(RecvBufferFullOrEmpty()!=1)     //判断缓冲区是否满
{

}
}
}

int main(int argc, const char *argv[])

{
int i;
pthread_t tid1, tid2,tid3；
int rc1=0, rc2=0,rc3=0；
bool flag;
unsigned char tmp;
unsigned int count=0;
unsigned int count1=0;




prFile = fopen(argv[1],"rb+");


if(prFile == NULL)
{
fprintf(stdout,"read video file fail to fopen:%s\n",strerror(errno));
return -1;
}


InitNet("192.168.0.150","192.168.0.160");
printf("Net_Connect  Succesful!!\r\n");


rc1 = pthread_create(&tid1, NULL, RecvThread, NULL);
if(rc1 != 0)
printf("%s: %d\n",__func__, strerror(rc1));


rc2 = pthread_create(&tid2, NULL, VideoDataHandleThread, NULL);
if(rc2 != 0)
printf("%s: %d\n",__func__, strerror(rc2));


rc3 = pthread_create(&tid3, NULL, TeleDataHandleThread, NULL);
if(rc3 != 0)
printf("%s: %d\n",__func__, strerror(rc3));

while(1);
   

}

编译方法：

gcc -c videoplay.c


ar rcs libvideoplay.a videoplay.o


gcc -o play main.c -static -L. -lvideoplay -lpthread