Additions to test select(), incoplete and w/errors
parent
23b42c58fa
commit
11e3f51a3a
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@ -4,10 +4,13 @@
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#include <cstdio>
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#include <cstdlib>
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#include <netinet/in.h>
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#include <sys/select.h>
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#include <sys/socket.h>
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#include <sys/types.h>
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#include <unistd.h>
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#include <sys/time.h>
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int makeSocket() {
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int sockfd;
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if ((sockfd = socket(AF_INET, SOCK_STREAM, 0)) < 0) {
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@ -55,6 +58,7 @@ void term_handler(int signal) {
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exit(EXIT_SUCCESS);
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}
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/*
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int main(int argc, char const *argv[]) {
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signal(SIGTERM, term_handler);
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@ -81,5 +85,75 @@ int main(int argc, char const *argv[]) {
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}
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return 0;
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}*/
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#define TRUE 1
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#define FALSE 0
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int main(int argc, char const *argv[]) {
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signal(SIGTERM, term_handler);
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if (argc != 2) {
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printf("Usage: %s portNumber \n", argv[0]);
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exit(EXIT_FAILURE);
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}
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int port = atoi(argv[1]);
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printf("Start socket port %d\n", port);
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int opt = TRUE;
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int master_socket , addrlen , new_socket , client_socket[30] ,
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max_clients = 30 , activity, i , valread , sd;
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int max_sd;
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//set of socket descriptors
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fd_set readfds;
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//initialise all client_socket[] to 0 so not checked
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for (i = 0; i < max_clients; i++)
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{
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client_socket[i] = 0;
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}
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master_socket = makeSocket();
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//set master socket to allow multiple connections ,
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//this is just a good habit, it will work without this
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if( setsockopt(master_socket, SOL_SOCKET, SO_REUSEADDR, (char *)&opt,
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sizeof(opt)) < 0 )
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{
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perror("setsockopt");
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exit(EXIT_FAILURE);
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}
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bindSocketPort(master_socket, port);
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startListening(master_socket);
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while (true) {
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//clear the socket set
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FD_ZERO(&readfds);
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//add master socket to set
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FD_SET(master_socket, &readfds);
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max_sd = master_socket;
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}
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int client_fd = acceptConnection(server_fd);
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while (true) {
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uint32_t word;
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ssize_t bytes = read(client_fd, &word, 4);
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if (bytes != 4) {
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perror("Receive failed");
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exit(EXIT_FAILURE);
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}
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printf("[RICEVUTO]\t0x%x\n", word);
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}
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return 0;
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}
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