X-Git-Url: http://git.tuebingen.mpg.de/?p=paraslash.git;a=blobdiff_plain;f=server.c;h=a344b77440751a6e7017d9d7e641390a36eb157f;hp=f19fc996ecc7355ddf24379e242fcec4da287dd6;hb=53af5c6efb309565990203fd8504a812ec9166c9;hpb=e2167286448ce2ed9a01a548e7e9832563035088

diff --git a/server.c b/server.c
index f19fc996..a344b774 100644
--- a/server.c
+++ b/server.c
@@ -129,8 +129,9 @@ bool process_is_command_handler(void)
 
 /** The task responsible for server command handling. */
 struct server_command_task {
-	/** TCP port on which para_server listens for connections. */
-	int listen_fd;
+	unsigned num_listen_fds; /* only one by default */
+	/** TCP socket(s) on which para_server listens for connections. */
+	int *listen_fds;
 	/* File descriptor for the accepted socket. */
 	int child_fd;
 	/** Copied from para_server's main function. */
@@ -382,22 +383,22 @@ static void init_signal_task(void)
 
 static void command_pre_select(struct sched *s, void *context)
 {
+	unsigned n;
 	struct server_command_task *sct = context;
-	para_fd_set(sct->listen_fd, &s->rfds, &s->max_fileno);
+
+	for (n = 0; n < sct->num_listen_fds; n++)
+		para_fd_set(sct->listen_fds[n], &s->rfds, &s->max_fileno);
 }
 
-static int command_post_select(struct sched *s, void *context)
+static int command_task_accept(unsigned listen_idx, struct sched *s,
+		struct server_command_task *sct)
 {
-	struct server_command_task *sct = context;
 	int new_fd, ret, i;
 	char *peer_name;
 	pid_t child_pid;
 	uint32_t *chunk_table;
 
-	ret = task_get_notification(sct->task);
-	if (ret < 0)
-		return ret;
-	ret = para_accept(sct->listen_fd, &s->rfds, NULL, 0, &new_fd);
+	ret = para_accept(sct->listen_fds[listen_idx], &s->rfds, NULL, 0, &new_fd);
 	if (ret <= 0)
 		goto out;
 	mmd->num_connects++;
@@ -459,23 +460,63 @@ out:
 	return 0;
 }
 
+static int command_post_select(struct sched *s, void *context)
+{
+	struct server_command_task *sct = context;
+	unsigned n;
+	int ret;
+
+	ret = task_get_notification(sct->task);
+	if (ret < 0)
+		return ret;
+	for (n = 0; n < sct->num_listen_fds; n++) {
+		ret = command_task_accept(n, s, sct);
+		if (ret < 0) {
+			free(sct->listen_fds);
+			return ret;
+		}
+	}
+	return 0;
+}
+
 static void init_server_command_task(struct server_command_task *sct,
 		int argc, char **argv)
 {
 	int ret;
+	unsigned n;
+	uint32_t port = OPT_UINT32_VAL(PORT);
 
 	PARA_NOTICE_LOG("initializing tcp command socket\n");
 	sct->child_fd = -1;
 	sct->argc = argc;
 	sct->argv = argv;
-	ret = para_listen_simple(IPPROTO_TCP, OPT_UINT32_VAL(PORT));
-	if (ret < 0)
-		goto err;
-	sct->listen_fd = ret;
-	ret = mark_fd_nonblocking(sct->listen_fd);
-	if (ret < 0)
-		goto err;
-	add_close_on_fork_list(sct->listen_fd); /* child doesn't need the listener */
+	if (!OPT_GIVEN(LISTEN_ADDRESS)) {
+		sct->num_listen_fds = 1;
+		sct->listen_fds = para_malloc(sizeof(int));
+		ret = para_listen_simple(IPPROTO_TCP, port);
+		if (ret < 0)
+			goto err;
+		sct->listen_fds[0] = ret;
+	} else {
+		sct->num_listen_fds = OPT_GIVEN(LISTEN_ADDRESS);
+		sct->listen_fds = para_malloc(sct->num_listen_fds * sizeof(int));
+		for (n = 0; n < OPT_GIVEN(LISTEN_ADDRESS); n++) {
+			const char *arg;
+			arg = lls_string_val(n, OPT_RESULT(LISTEN_ADDRESS));
+			ret = para_listen(IPPROTO_TCP, arg, port);
+			if (ret < 0)
+				goto err;
+			sct->listen_fds[n] = ret;
+		}
+	}
+	for (n = 0; n < sct->num_listen_fds; n++) {
+		ret = mark_fd_nonblocking(sct->listen_fds[n]);
+		if (ret < 0)
+			goto err;
+		/* child doesn't need the listener */
+		add_close_on_fork_list(sct->listen_fds[n]);
+	}
+
 	sct->task = task_register(&(struct task_info) {
 		.name = "server command",
 		.pre_select = command_pre_select,