int msock; /* master listening socket */
extern void *context_loop(int);
extern void *housekeeping_loop(void);
-extern pthread_mutex_t MasterCritter;
+extern pthread_mutex_t SessionListMutex;
+extern pthread_key_t MyConKey;
+
+
+
+
const char *defaulthost = DEFAULT_HOST;
const char *defaultport = DEFAULT_PORT;
+pthread_mutex_t AcceptQueue;
+
/*
* This is a generic function to set up a master socket for listening on
* a TCP port. The server shuts down if the bind fails.
sin.sin_addr.s_addr = INADDR_ANY;
if (port_number == 0) {
- printf("webcit: Cannot start: no port number specified.\n");
+ fprintf(stderr,
+ "webcit: Cannot start: no port number specified.\n");
exit(1);
}
sin.sin_port = htons((u_short) port_number);
s = socket(PF_INET, SOCK_STREAM, (getprotobyname("tcp")->p_proto));
if (s < 0) {
- printf("webcit: Can't create a socket: %s\n",
+ fprintf(stderr, "webcit: Can't create a socket: %s\n",
strerror(errno));
exit(errno);
}
setsockopt(s, SOL_SOCKET, SO_REUSEADDR, &i, sizeof(i));
if (bind(s, (struct sockaddr *) &sin, sizeof(sin)) < 0) {
- printf("webcit: Can't bind: %s\n", strerror(errno));
+ fprintf(stderr, "webcit: Can't bind: %s\n", strerror(errno));
exit(errno);
}
if (listen(s, queue_len) < 0) {
- printf("webcit: Can't listen: %s\n", strerror(errno));
+ fprintf(stderr, "webcit: Can't listen: %s\n", strerror(errno));
exit(errno);
}
return (s);
retval = write(sock, &buf[bytes_written],
nbytes - bytes_written);
if (retval < 1) {
- printf("client_write() failed: %s\n",
+ fprintf(stderr, "client_write() failed: %s\n",
strerror(errno));
- pthread_exit(NULL);
}
bytes_written = bytes_written + retval;
}
}
rlen = read(sock, &buf[len], bytes - len);
if (rlen < 1) {
- printf("client_read() failed: %s\n",
+ fprintf(stderr, "client_read() failed: %s\n",
strerror(errno));
- pthread_exit(NULL);
}
len = len + rlen;
}
*/
int main(int argc, char **argv)
{
- struct sockaddr_in fsin; /* Data for master socket */
- int alen; /* Data for master socket */
- int ssock; /* Descriptor for master socket */
pthread_t SessThread; /* Thread descriptor */
pthread_attr_t attr; /* Thread attributes */
int a, i; /* General-purpose variables */
defaultport = argv[optind];
}
/* Tell 'em who's in da house */
- printf("WebCit version 2.00\n");
- printf("Copyright (C) 1996-1999. All rights reserved.\n\n");
+ fprintf(stderr, SERVER "\n"
+ "Copyright (C) 1996-1999. All rights reserved.\n\n");
if (chdir(WEBCITDIR) != 0)
perror("chdir");
+ /*
+ * Set up a place to put thread-specific data.
+ * We only need a single pointer per thread - it points to the
+ * wcsession struct to which the thread is currently bound.
+ */
+ if (pthread_key_create(&MyConKey, NULL) != 0) {
+ fprintf(stderr, "Can't create TSD key: %s\n", strerror(errno));
+ }
+
/*
* Bind the server to our favorite port.
* There is no need to check for errors, because ig_tcp_server()
* exits if it doesn't succeed.
*/
- printf("Attempting to bind to port %d...\n", port);
+ fprintf(stderr, "Attempting to bind to port %d...\n", port);
msock = ig_tcp_server(port, 5);
- printf("Listening on socket %d\n", msock);
+ fprintf(stderr, "Listening on socket %d\n", msock);
signal(SIGPIPE, SIG_IGN);
- pthread_mutex_init(&MasterCritter, NULL);
-
-
+ pthread_mutex_init(&SessionListMutex, NULL);
+ pthread_mutex_init(&AcceptQueue, NULL);
/*
* Start up the housekeeping thread
- /*
- * Endless loop. Listen on the master socket. When a connection
- * comes in, create a socket, a context, and a thread.
- */
- while (1) {
+ /* FIX ... we need to auto-size the thread pool */
+ for (i=0; i<10; ++i) {
+
+ /* set attributes for the new thread */
+ pthread_attr_init(&attr);
+ pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
+
+ /* now create the thread */
+ if (pthread_create(&SessThread, &attr,
+ (void *(*)(void *)) worker_entry, NULL)
+ != 0) {
+ fprintf(stderr, "webcit: can't create thread: %s\n",
+ strerror(errno));
+ }
+ }
+
+ /* now become a worker thread too */
+ worker_entry();
+ pthread_exit(NULL);
+}
+
+
+/*
+ * Entry point for worker threads
+ */
+void worker_entry(void) {
+ int ssock;
+ struct sockaddr_in fsin;
+ int alen;
+ int i = 0;
+ int time_to_die = 0;
+
+ do {
+ /* Only one thread can accept at a time */
+ pthread_mutex_lock(&AcceptQueue);
ssock = accept(msock, (struct sockaddr *) &fsin, &alen);
- printf("New connection on socket %d\n", ssock);
+ pthread_mutex_unlock(&AcceptQueue);
+
if (ssock < 0) {
- printf("webcit: accept() failed: %s\n",
- strerror(errno));
+ fprintf(stderr, "webcit: accept() failed: %s\n",
+ strerror(errno));
} else {
/* Set the SO_REUSEADDR socket option */
i = 1;
setsockopt(ssock, SOL_SOCKET, SO_REUSEADDR,
- &i, sizeof(i));
-
- /* set attributes for the new thread */
- pthread_attr_init(&attr);
- pthread_attr_setdetachstate(&attr,
- PTHREAD_CREATE_DETACHED);
-
- /* now create the thread */
- if (pthread_create(&SessThread, &attr,
- (void *(*)(void *)) context_loop,
- (void *) ssock)
- != 0) {
- printf("webcit: can't create thread: %s\n",
- strerror(errno));
- }
+ &i, sizeof(i));
+ context_loop(ssock);
}
- }
+
+ } while (!time_to_die);
+
+ pthread_exit(NULL);
}
projects / citadel.git / blobdiff