Break message type stuff out into its own header.

tmux-protocol.h

@@ -0,0 +1,114 @@
+/* $OpenBSD$ */
+
+/*
+ * Copyright (c) 2021 Nicholas Marriott <nicholas.marriott@gmail.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF MIND, USE, DATA OR PROFITS, WHETHER
+ * IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING
+ * OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#ifndef TMUX_PROTOCOL_H
+#define TMUX_PROTOCOL_H
+
+/* Protocol version. */
+#define PROTOCOL_VERSION 8
+
+/* Message types. */
+enum msgtype {
+	MSG_VERSION = 12,
+
+	MSG_IDENTIFY_FLAGS = 100,
+	MSG_IDENTIFY_TERM,
+	MSG_IDENTIFY_TTYNAME,
+	MSG_IDENTIFY_OLDCWD, /* unused */
+	MSG_IDENTIFY_STDIN,
+	MSG_IDENTIFY_ENVIRON,
+	MSG_IDENTIFY_DONE,
+	MSG_IDENTIFY_CLIENTPID,
+	MSG_IDENTIFY_CWD,
+	MSG_IDENTIFY_FEATURES,
+	MSG_IDENTIFY_STDOUT,
+	MSG_IDENTIFY_LONGFLAGS,
+	MSG_IDENTIFY_TERMINFO,
+
+	MSG_COMMAND = 200,
+	MSG_DETACH,
+	MSG_DETACHKILL,
+	MSG_EXIT,
+	MSG_EXITED,
+	MSG_EXITING,
+	MSG_LOCK,
+	MSG_READY,
+	MSG_RESIZE,
+	MSG_SHELL,
+	MSG_SHUTDOWN,
+	MSG_OLDSTDERR, /* unused */
+	MSG_OLDSTDIN, /* unused */
+	MSG_OLDSTDOUT, /* unused */
+	MSG_SUSPEND,
+	MSG_UNLOCK,
+	MSG_WAKEUP,
+	MSG_EXEC,
+	MSG_FLAGS,
+
+	MSG_READ_OPEN = 300,
+	MSG_READ,
+	MSG_READ_DONE,
+	MSG_WRITE_OPEN,
+	MSG_WRITE,
+	MSG_WRITE_READY,
+	MSG_WRITE_CLOSE
+};
+
+/*
+ * Message data.
+ *
+ * Don't forget to bump PROTOCOL_VERSION if any of these change!
+ */
+struct msg_command {
+	int	argc;
+}; /* followed by packed argv */
+
+struct msg_read_open {
+	int	stream;
+	int	fd;
+}; /* followed by path */
+
+struct msg_read_data {
+	int	stream;
+};
+
+struct msg_read_done {
+	int	stream;
+	int	error;
+};
+
+struct msg_write_open {
+	int	stream;
+	int	fd;
+	int	flags;
+}; /* followed by path */
+
+struct msg_write_data {
+	int	stream;
+}; /* followed by data */
+
+struct msg_write_ready {
+	int	stream;
+	int	error;
+};
+
+struct msg_write_close {
+	int	stream;
+};
+
+#endif /* TMUX_PROTOCOL_H */

tmux.h

@@ -31,6 +31,7 @@
 #include <stdio.h>
 #include <termios.h>
 
+#include "tmux-protocol.h"
 #include "xmalloc.h"
 
 extern char   **environ;
@@ -60,13 +61,12 @@ struct screen_write_cline;
 struct screen_write_ctx;
 struct session;
 struct tty_ctx;
+struct tty_code;
+struct tty_key;
 struct tmuxpeer;
 struct tmuxproc;
 struct winlink;
 
-/* Client-server protocol version. */
-#define PROTOCOL_VERSION 8
-
 /* Default configuration files and socket paths. */
 #ifndef TMUX_CONF
 #define TMUX_CONF "/etc/tmux.conf:~/.tmux.conf"
@@ -504,95 +504,6 @@ enum tty_code_code {
 	TTYC_XT
 };
 
-/* Message codes. */
-enum msgtype {
-	MSG_VERSION = 12,
-
-	MSG_IDENTIFY_FLAGS = 100,
-	MSG_IDENTIFY_TERM,
-	MSG_IDENTIFY_TTYNAME,
-	MSG_IDENTIFY_OLDCWD, /* unused */
-	MSG_IDENTIFY_STDIN,
-	MSG_IDENTIFY_ENVIRON,
-	MSG_IDENTIFY_DONE,
-	MSG_IDENTIFY_CLIENTPID,
-	MSG_IDENTIFY_CWD,
-	MSG_IDENTIFY_FEATURES,
-	MSG_IDENTIFY_STDOUT,
-	MSG_IDENTIFY_LONGFLAGS,
-	MSG_IDENTIFY_TERMINFO,
-
-	MSG_COMMAND = 200,
-	MSG_DETACH,
-	MSG_DETACHKILL,
-	MSG_EXIT,
-	MSG_EXITED,
-	MSG_EXITING,
-	MSG_LOCK,
-	MSG_READY,
-	MSG_RESIZE,
-	MSG_SHELL,
-	MSG_SHUTDOWN,
-	MSG_OLDSTDERR, /* unused */
-	MSG_OLDSTDIN, /* unused */
-	MSG_OLDSTDOUT, /* unused */
-	MSG_SUSPEND,
-	MSG_UNLOCK,
-	MSG_WAKEUP,
-	MSG_EXEC,
-	MSG_FLAGS,
-
-	MSG_READ_OPEN = 300,
-	MSG_READ,
-	MSG_READ_DONE,
-	MSG_WRITE_OPEN,
-	MSG_WRITE,
-	MSG_WRITE_READY,
-	MSG_WRITE_CLOSE
-};
-
-/*
- * Message data.
- *
- * Don't forget to bump PROTOCOL_VERSION if any of these change!
- */
-struct msg_command {
-	int	argc;
-}; /* followed by packed argv */
-
-struct msg_read_open {
-	int	stream;
-	int	fd;
-}; /* followed by path */
-
-struct msg_read_data {
-	int	stream;
-};
-
-struct msg_read_done {
-	int	stream;
-	int	error;
-};
-
-struct msg_write_open {
-	int	stream;
-	int	fd;
-	int	flags;
-}; /* followed by path */
-
-struct msg_write_data {
-	int	stream;
-}; /* followed by data */
-
-struct msg_write_ready {
-	int	stream;
-	int	error;
-};
-
-struct msg_write_close {
-	int	stream;
-};
-
 /* Character classes. */
 #define WHITESPACE " "
 
@@ -1292,18 +1203,7 @@ struct key_event {
 	struct mouse_event	m;
 };
 
-/* TTY information. */
+/* Terminal definition. */
-struct tty_key {
-	char		 ch;
-	key_code	 key;
-
-	struct tty_key	*left;
-	struct tty_key	*right;
-
-	struct tty_key	*next;
-};
-
-struct tty_code;
 struct tty_term {
 	char		*name;
 	struct tty	*tty;
@@ -1325,6 +1225,7 @@ struct tty_term {
 };
 LIST_HEAD(tty_terms, tty_term);
 
+/* Client terminal. */
 struct tty {
 	struct client	*client;
 	struct event	 start_timer;
@@ -1393,7 +1294,7 @@ struct tty {
 	struct tty_key	*key_tree;
 };
 
-/* TTY command context. */
+/* Terminal command context. */
 typedef void (*tty_ctx_redraw_cb)(const struct tty_ctx *);
 typedef int (*tty_ctx_set_client_cb)(struct tty_ctx *, struct client *);
 struct tty_ctx {

tty-keys.c

@@ -58,6 +58,17 @@ static int	tty_keys_device_attributes(struct tty *, const char *, size_t,
 static int	tty_keys_extended_device_attributes(struct tty *, const char *,
 		    size_t, size_t *);
 
+/* A key tree entry. */
+struct tty_key {
+	char		 ch;
+	key_code	 key;
+
+	struct tty_key	*left;
+	struct tty_key	*right;
+
+	struct tty_key	*next;
+};
+
 /* Default raw keys. */
 struct tty_default_key_raw {
 	const char	       *string;