2005-11-11 Carl Worth <cworth@cworth.org>

[ttt] / src / ttt-server.c

diff --git a/src/ttt-server.c b/src/ttt-server.c
index b42db7a95064811b95fff78b4f0070236b4fe69c..316a27021ec6919a7985e80df95fafde2c3b5fc3 100644 (file)
--- a/src/ttt-server.c
+++ b/src/ttt-server.c
@@ -1,4 +1,4 @@
-/* ttt.c - client-server tic-tac-toe game
+/* ttt-server.c - tic-tac-toe game server
  *
  * Copyright © 2005 Carl Worth
  *
@@ -20,16 +20,92 @@
  */
 
 #include "ttt.h"
+#include "ttt-client.h"
+#include "ttt-socket.h"
+
+struct _ttt_server {
+    pthread_mutex_t mutex;
+
+    ttt_client_t **clients;
+    int num_clients;
+};
+
+static void
+ttt_server_init (ttt_server_t *server)
+{
+    pthread_mutex_init (&server->mutex, NULL);
+
+    server->clients = NULL;
+    server->num_clients = 0;
+}
+
+static void
+ttt_server_add_client (ttt_server_t *server, ttt_client_t *client)
+{
+    pthread_mutex_lock (&server->mutex);
+
+    server->num_clients++;
+    server->clients = xrealloc (server->clients,
+                               server->num_clients * sizeof (ttt_client_t *));
+
+    server->clients [server->num_clients - 1] = client;
+
+    pthread_mutex_unlock (&server->mutex);
+}
+
+static void
+_accept_client (void *closure, int client_socket)
+{
+    ttt_server_t *server = closure;
+    ttt_client_t *client;
+    
+    client = ttt_client_create (server, client_socket);
+
+    ttt_server_add_client (server, client);
+
+    ttt_client_handle_requests (client);
+}
+
+static const char *WELCOME_MESSAGE = 
+"Welcome to ttt-server. So far, this program is simply a demonstration\n"
+"of a TCP/IP server capable of handling multiple simultaneous clients.\n"
+"The server is currently listening on:\n"
+"\n    %s:%s\n"
+"\nTo test this program, simply connect a client to that host and port.\n"
+"For example:\n"
+"\n    telnet %s %s\n"
+"\nOnce you have connected a client, the server will echo any characters\n"
+"it receives back to the client as well as to stdout.\n"
+"\nNote that to terminate the telnet client you type Control-], then\n"
+"<Enter>, then \"close\" (and <Enter>) at the \"telnet> \" prompt.\n"
+"\nHave fun!\n"
+"-Carl\n"
+"\nPS. The server does support multiple clients, but there is not yet any\n"
+"interaction between the clients. The next step is probably to turn the\n"
+"server into a simple chat server. After that, we should have the necessary\n"
+"structure in place to start implementing the real tic-tac-toe protocol.\n\n";
 
 int 
 main (int argc, char **argv)
 {
     ttt_args_t args;
-    int args_first;
+    ttt_server_t server;
+    int socket;
+
+    ttt_args_parse (&args, argc, argv);
+
+    if (args.log_file)
+       xfreopen (args.log_file, "a", stderr);
+
+    socket = ttt_socket_create_server (args.host, args.port);
+
+    printf (WELCOME_MESSAGE, args.host, args.port, args.host, args.port);
 
-    ttt_args_parse (&args, argc, argv, &args_first);
+    ttt_server_init (&server);
 
-    /* XXX: insert code here */
+    while (1)
+       ttt_socket_accept (socket, _accept_client, &server);
 
-    return 0;
+    /* We only reach here if something bad happened. */
+    return 1;
 }