77 lines
1.6 KiB
C
77 lines
1.6 KiB
C
#include <sys/types.h>
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#include <sys/socket.h>
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#include <stdio.h>
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#include <netinet/in.h>
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#include <arpa/inet.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdlib.h>
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#include <fcntl.h>
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#include <sys/shm.h>
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#include <sys/time.h>
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int sockinit(short port)
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{
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int sock = socket(AF_INET,SOCK_STREAM, 0);
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struct sockaddr_in servaddr;
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memset(&servaddr, 0, sizeof(servaddr));
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servaddr.sin_family = AF_INET;
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servaddr.sin_port = htons(port);
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servaddr.sin_addr.s_addr = inet_addr("127.0.0.1");
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if (connect(sock, (struct sockaddr *)&servaddr, sizeof(servaddr)) < 0)
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{
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perror("connect");
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exit(1);
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}
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return sock;
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}
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void sockclose(int s){
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close(s);
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}
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void socksend(int s,void *dataa,int siz){
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send(s,dataa,siz,0);
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}
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long int timem(){
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struct timeval t;
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gettimeofday(&t, NULL);
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return t.tv_sec*1000+t.tv_usec/1000;
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}
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int udpinit(short port){
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int sock = socket(AF_INET,SOCK_DGRAM, 0);
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struct sockaddr_in servaddr;
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memset(&servaddr, 0, sizeof(servaddr));
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servaddr.sin_family = AF_INET;
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servaddr.sin_port = htons(port);
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servaddr.sin_addr.s_addr = INADDR_ANY;
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if (bind(sock, (struct sockaddr *)&servaddr, sizeof(servaddr))<0){
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perror("connect");
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exit(1);
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}
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return sock;
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}
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int udprecv(int s,void *dataa,int siz){
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struct sockaddr from;
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return recvfrom(s, dataa, siz, 0,&from,0);
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}
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double llhr[3]={39.68,139,76};
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void threadrecv(){
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printf("listing\n");
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short p=5678;
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int s=udpinit(p);
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while(1){
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udprecv(s,llhr,3*sizeof(double));
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//printf("%lf%lf%lf\n",llhr[0],llhr[1],llhr[2]);
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}
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}
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