159 lines
3.6 KiB
C
159 lines
3.6 KiB
C
#include "../src/ipc.h"
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#include <signal.h>
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#include <sys/socket.h>
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#include <sys/un.h>
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#include <unistd.h>
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#define PONGD_SERVICE_NAME "pong"
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#define PRINTERR(ret,msg) {\
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const char * err = ipc_errors_get (ret.error_code);\
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fprintf(stderr, "error while %s: %s\n", msg, err);\
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}
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int cpt = 0;
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struct ipc_connection_info *srv = 0;
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struct ipc_connection_infos *clients;
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void main_loop ()
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{
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SECURE_DECLARATION(struct ipc_error, ret);
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clients = malloc (sizeof (struct ipc_connection_infos));
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memset(clients, 0, sizeof(struct ipc_connection_infos));
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SECURE_DECLARATION(struct ipc_event,event);
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long timer = 10;
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while(1) {
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// ipc_wait_event provides one event at a time
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// warning: event->m is free'ed if not NULL
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ret = ipc_wait_event (clients, srv, &event, &timer);
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if (ret.error_code != IPC_ERROR_NONE && ret.error_code != IPC_ERROR_CLOSED_RECIPIENT) {
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PRINTERR(ret,"service poll event");
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// the application will shut down, and close the service
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TEST_IPC_Q(ipc_server_close (srv), EXIT_FAILURE);
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exit (EXIT_FAILURE);
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}
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switch (event.type) {
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case IPC_EVENT_TYPE_TIMER: {
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fprintf(stderr, "time up!\n");
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timer = 10;
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};
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break;
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case IPC_EVENT_TYPE_CONNECTION: {
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cpt++;
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printf ("connection: %d clients connected\n", cpt);
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printf ("new client has the fd %d\n", ((struct ipc_connection_info*) event.origin)->fd);
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};
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break;
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case IPC_EVENT_TYPE_DISCONNECTION:
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{
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cpt--;
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printf ("disconnection: %d clients remaining\n", cpt);
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// free the ipc_connection_info structure
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free (event.origin);
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};
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break;
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case IPC_EVENT_TYPE_MESSAGE:
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{
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struct ipc_message *m = event.m;
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if (m->length > 0) {
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printf ("message received (type %d): %.*s\n", m->type, m->length, m->payload);
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}
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ret = ipc_write (event.origin, m);
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if (ret.error_code != IPC_ERROR_NONE) {
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PRINTERR(ret,"server write");
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}
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};
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break;
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case IPC_EVENT_TYPE_ERROR:
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{
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fprintf (stderr, "a problem happened with client %d\n"
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, ((struct ipc_connection_info*) event.origin)->fd);
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};
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break;
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default :
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{
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fprintf (stderr, "there must be a problem, event not set\n");
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};
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}
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}
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// should never go there
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exit (1);
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}
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void exit_program(int signal)
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{
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printf("Quitting, signal: %d\n", signal);
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// free remaining clients
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for (size_t i = 0; i < clients->size ; i++) {
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struct ipc_connection_info *cli = clients->cinfos[i];
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if (cli != NULL) {
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free (cli);
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}
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clients->cinfos[i] = NULL;
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}
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ipc_connections_free (clients);
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free (clients);
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// the application will shut down, and close the service
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TEST_IPC_Q(ipc_server_close (srv), EXIT_FAILURE);
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free (srv);
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exit(EXIT_SUCCESS);
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}
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/*
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* service ping-pong: send back everything sent by the clients
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* stop the program on SIG{TERM,INT,ALRM,USR{1,2},HUP} signals
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*/
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int main(int argc, char * argv[], char **env)
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{
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argc = argc; // warnings
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argv = argv; // warnings
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printf ("pid = %d\n", getpid ());
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srv = malloc (sizeof (struct ipc_connection_info));
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if (srv == NULL) {
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exit (1);
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}
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memset (srv, 0, sizeof (struct ipc_connection_info));
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srv->index = 0;
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srv->version = 0;
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TEST_IPC_Q(ipc_server_init (env, srv, PONGD_SERVICE_NAME), EXIT_FAILURE);
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printf ("Listening on %s.\n", srv->spath);
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printf("MAIN: server created\n" );
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signal (SIGHUP, exit_program);
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signal (SIGALRM, exit_program);
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signal (SIGUSR1, exit_program);
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signal (SIGUSR2, exit_program);
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signal (SIGTERM, exit_program);
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signal (SIGINT, exit_program);
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// the service will loop until the end of time, or a signal
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main_loop ();
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// main_loop should not return
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return EXIT_FAILURE;
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}
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