5 #include <sys/socket.h>
6 #include <netinet/in.h>
18 #define BUFFSIZE 65536
20 int ac_sockfd[AC_QUEUES];
27 for (i = 0 ; i < AC_QUEUES; i++)
28 close(ac_sockfd[AC_QUEUES]);
33 int create_ac_socket(unsigned int ac)
35 struct sockaddr_in my_addr;
37 unsigned int yes=1, tos;
40 if ((sockfd = socket(PF_INET, SOCK_DGRAM, 0)) < 0)
42 perror("Socket nelze otevrit");
46 if (setsockopt(sockfd,SOL_SOCKET,SO_REUSEADDR,&yes,sizeof(int)) == -1) {
47 perror("Chyba v nastaveni soketu");
51 // bzero(&my_addr, sizeof(my_addr));
52 memset(&my_addr,0, sizeof(my_addr));
53 my_addr.sin_family = AF_INET;
54 my_addr.sin_addr.s_addr = INADDR_ANY;
55 my_addr.sin_port = htons(BASE_PORT + ac);
57 if (bind(sockfd, (struct sockaddr *)&my_addr, sizeof(my_addr)) == -1) {
58 perror("Chyba v bind");
63 //tos = ((AC_QUEUES - ac) *2 - 1)*32;
65 if (setsockopt(sockfd, SOL_IP, IP_TOS, &tos, sizeof(tos))) {
66 perror("Unable to set TOS");
74 void* qhandler(void* queue)
77 struct sockaddr_in rem_addr;
79 unsigned int ac, rem_addr_length;
82 printf("AC= %d\n",ac);
83 rem_addr_length=sizeof(rem_addr);
89 while ((mlen = recvfrom(ac_sockfd[ac], buff, sizeof(buff) , 0, \
90 (struct sockaddr*)&rem_addr, &rem_addr_length)) < 0) {
91 if (errno == EINTR) continue;
92 perror("Chyba pri prijimani pozadavku");
100 while (sendto(ac_sockfd[ac], buff, mlen,0 ,(struct sockaddr*)&rem_addr, \
101 sizeof(rem_addr)) < 0){
102 if (errno == EINTR) continue;
103 perror("Chyba pri zapisu");
110 int main(int argc, char *argv[])
116 pthread_attr_init(&attr);
118 if (signal(SIGTERM, stopper) == SIG_ERR) {
119 perror("Signal handler registration error");
123 if (signal(SIGINT, stopper) == SIG_ERR) {
124 perror("Signal handler registration error");
128 for (i = 0; i < AC_QUEUES; i++) {
129 ac_sockfd[i] = create_ac_socket(i);
130 rc = pthread_create(&thread, &attr, qhandler, (void*) i);