Improved main code
This commit is contained in:
parent
98e19476c5
commit
2808be0412
2 changed files with 47 additions and 16 deletions
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@ -86,7 +86,7 @@ int main(int argc, char ** argv) {
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}
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// Create a signalfd for the specified signals
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int sfd = signalfd(-1, &mask, 0);
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const int sfd = signalfd(-1, &mask, 0);
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if (sfd == -1) {
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perror("signalfd");
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exit(EXIT_FAILURE);
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61
stray_ally.c
61
stray_ally.c
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@ -36,6 +36,25 @@ int main(int argc, char ** argv) {
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init_config(&settings);
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fill_config(&settings, configuration_file);
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// Create a signal set containing only SIGTERM
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sigset_t mask;
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sigemptyset(&mask);
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sigaddset(&mask, SIGTERM);
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sigaddset(&mask, SIGINT);
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// Block SIGTERM for the current thread
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if (sigprocmask(SIG_BLOCK, &mask, NULL) == -1) {
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perror("sigprocmask");
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exit(EXIT_FAILURE);
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}
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// Create a signalfd for the specified signals
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const int sfd = signalfd(-1, &mask, 0);
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if (sfd == -1) {
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perror("signalfd");
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exit(EXIT_FAILURE);
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}
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// populate the output device thread data
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dev_out_data_t dev_out_thread_data = {
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.communication = {
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@ -62,15 +81,12 @@ int main(int argc, char ** argv) {
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const uint64_t timeout_ms = 1500;
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struct pollfd poll_fds[2];
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poll_fds[0].fd = -1 /*signalfd(-1, )*/;
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poll_fds[0].fd = sfd;
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poll_fds[0].events = POLL_IN;
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int sd=-1;
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struct sockaddr_un serveraddr;
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do {
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poll_fds[0].revents = 0;
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poll_fds[1].revents = 0;
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sd = socket(AF_UNIX, SOCK_SEQPACKET, 0);
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if (sd < 0)
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{
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@ -80,7 +96,7 @@ int main(int argc, char ** argv) {
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memset(&serveraddr, 0, sizeof(serveraddr));
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serveraddr.sun_family = AF_UNIX;
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strcpy(serveraddr.sun_path, SERVER_PATH);
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strncpy(serveraddr.sun_path, SERVER_PATH, sizeof(serveraddr.sun_path) - 1);
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int rc = bind(sd, (struct sockaddr *)&serveraddr, SUN_LEN(&serveraddr));
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if (rc < 0)
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@ -100,10 +116,31 @@ int main(int argc, char ** argv) {
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poll_fds[1].events = POLL_IN;
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while (true) {
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poll_fds[0].revents = 0;
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poll_fds[1].revents = 0;
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const int poll_ret = poll(poll_fds, sizeof(poll_fds) / sizeof(poll_fds[0]), timeout_ms);
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if (poll_fds[0].revents & POLLIN) {
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// TODO: read for signals
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// Read signals from the signalfd
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struct signalfd_siginfo si;
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ssize_t s = read(sfd, &si, sizeof(struct signalfd_siginfo));
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if (s != sizeof(struct signalfd_siginfo)) {
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perror("Error reading signalfd\n");
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exit(EXIT_FAILURE);
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}
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// Check the signal received
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if (si.ssi_signo == SIGTERM) {
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printf("Received SIGTERM -- propagating signal\n");
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dev_out_thread_data.flags |= DEV_OUT_FLAG_EXIT;
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goto main_exit;
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} else if (si.ssi_signo == SIGINT) {
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printf("Received SIGINT -- propagating signal\n");
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dev_out_thread_data.flags |= DEV_OUT_FLAG_EXIT;
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goto main_exit;
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}
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} else if (poll_fds[1].revents & POLLIN) {
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const int client_fd = accept(sd, NULL, NULL);
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if (client_fd < 0) {
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@ -116,6 +153,7 @@ int main(int argc, char ** argv) {
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bool found = false;
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for (size_t i = 0; i < MAX_CONNECTED_CLIENTS; ++i) {
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if (dev_out_thread_data.communication.endpoint.ssocket.clients[i] < 0) {
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printf("Accepted new incoming connection on slot %zu: %d\n", i, client_fd);
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dev_out_thread_data.communication.endpoint.ssocket.clients[i] = client_fd;
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found = true;
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break;
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@ -139,18 +177,11 @@ int main(int argc, char ** argv) {
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unlink(SERVER_PATH);
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/*
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// TODO: once the application is able to exit de-comment this
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__sighandler_t sigint_hndl = signal(SIGINT, sig_handler);
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if (sigint_hndl == SIG_ERR) {
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fprintf(stderr, "Error registering SIGINT handler\n");
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return EXIT_FAILURE;
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}
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*/
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main_exit:
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main_err:
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if (dev_out_thread_creation == 0) {
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pthread_join(dev_out_thread, NULL);
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printf("dev_out_thread terminated\n");
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}
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return ret == 0 ? EXIT_SUCCESS : EXIT_FAILURE;
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