From 7d0766f3c30e00dd87a789de68e93eb1df8f24da Mon Sep 17 00:00:00 2001
From: Andrew Cagney <cagney@redhat.com>
Date: Tue, 19 Mar 2002 02:19:17 +0000
Subject: [PATCH] * command.h (struct cmd_list_element): Add field context.
 (set_cmd_context, get_cmd_context): Declare. * cli/cli-decode.h: Ditto. *
 cli/cli-decode.c (get_cmd_context): New function. (set_cmd_context): New
 function. (add_cmd): Initialize context. Part of fixing PR gdb/145 and PR
 gdb/146.

---
 gdb/ChangeLog        | 10 ++++++++++
 gdb/cli/cli-decode.c | 13 +++++++++++++
 gdb/cli/cli-decode.h |  7 +++++++
 gdb/command.h        |  8 ++++++++
 4 files changed, 38 insertions(+)

diff --git a/gdb/ChangeLog b/gdb/ChangeLog
index 682cc5c81f..90118cb4bd 100644
--- a/gdb/ChangeLog
+++ b/gdb/ChangeLog
@@ -1,3 +1,13 @@
+2002-03-18  Andrew Cagney  <ac131313@redhat.com>
+
+	* command.h (struct cmd_list_element): Add field context.
+	(set_cmd_context, get_cmd_context): Declare.
+	* cli/cli-decode.h: Ditto.
+	* cli/cli-decode.c (get_cmd_context): New function.
+	(set_cmd_context): New function.
+	(add_cmd): Initialize context.
+	Part of fixing PR gdb/145 and PR gdb/146.
+
 2002-03-17  Andrew Cagney  <ac131313@redhat.com>
 
 	* cli/cli-decode.c (cmd_type): New function.
diff --git a/gdb/cli/cli-decode.c b/gdb/cli/cli-decode.c
index 1568e31ae3..28db5f9900 100644
--- a/gdb/cli/cli-decode.c
+++ b/gdb/cli/cli-decode.c
@@ -86,6 +86,18 @@ cmd_cfunc_eq (struct cmd_list_element *cmd,
   return cmd->func == do_cfunc && cmd->function.cfunc == cfunc;
 }
 
+void
+set_cmd_context (struct cmd_list_element *cmd, void *context)
+{
+  cmd->context = context;
+}
+
+void *
+get_cmd_context (struct cmd_list_element *cmd)
+{
+  return cmd->context;
+}
+
 enum cmd_types
 cmd_type (struct cmd_list_element *cmd)
 {
@@ -146,6 +158,7 @@ add_cmd (char *name, enum command_class class, void (*fun) (char *, int),
   c->name = name;
   c->class = class;
   set_cmd_cfunc (c, fun);
+  set_cmd_context (c, NULL);
   c->doc = doc;
   c->flags = 0;
   c->replacement = NULL;
diff --git a/gdb/cli/cli-decode.h b/gdb/cli/cli-decode.h
index 51ca781079..adb9feb27f 100644
--- a/gdb/cli/cli-decode.h
+++ b/gdb/cli/cli-decode.h
@@ -139,6 +139,9 @@ struct cmd_list_element
       }
     function;
 
+    /* Local state (context) for this command.  This can be anything.  */
+    void *context;
+
     /* Documentation of this command (or help topic).
        First line is brief documentation; remaining lines form, with it,
        the full documentation.  First line should end with a period.
@@ -294,6 +297,10 @@ extern void set_cmd_completer (struct cmd_list_element *cmd,
 extern int cmd_cfunc_eq (struct cmd_list_element *cmd,
 			 void (*cfunc) (char *args, int from_tty));
 
+/* Access to the command's local context.  */
+extern void set_cmd_context (struct cmd_list_element *cmd, void *context);
+extern void *get_cmd_context (struct cmd_list_element *cmd);
+
 extern struct cmd_list_element *lookup_cmd (char **,
 					    struct cmd_list_element *, char *,
 					    int, int);
diff --git a/gdb/command.h b/gdb/command.h
index fffa3be532..5f7284e4df 100644
--- a/gdb/command.h
+++ b/gdb/command.h
@@ -145,6 +145,9 @@ struct cmd_list_element
       }
     function;
 
+    /* Local state (context) for this command.  This can be anything.  */
+    void *context;
+
     /* Documentation of this command (or help topic).
        First line is brief documentation; remaining lines form, with it,
        the full documentation.  First line should end with a period.
@@ -300,6 +303,11 @@ extern void set_cmd_completer (struct cmd_list_element *cmd,
 extern int cmd_cfunc_eq (struct cmd_list_element *cmd,
 			 void (*cfunc) (char *args, int from_tty));
 
+/* Each command object has a local context attached to it. .  */
+extern void set_cmd_context (struct cmd_list_element *cmd, void *context);
+extern void *get_cmd_context (struct cmd_list_element *cmd);
+
+
 /* Execute CMD's pre/post hook.  Throw an error if the command fails.
    If already executing this pre/post hook, or there is no pre/post
    hook, the call is silently ignored.  */
-- 
2.34.1