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Make this sucker compile again!!
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2022-03-31, Gary Kramlich
ea0a68c3b8a8
Make this sucker compile again!!
/**
* @file tcl_signals.c Gaim Tcl signal API
*
* gaim
*
* Copyright (C) 2003 Ethan Blanton <eblanton@cs.purdue.edu>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include
<tcl.h>
#include
<stdarg.h>
#include
"tcl_gaim.h"
#include
"internal.h"
#include
"connection.h"
#include
"conversation.h"
#include
"signals.h"
#include
"debug.h"
#include
"value.h"
#include
"core.h"
static
GList
*
tcl_callbacks
;
static
void
*
tcl_signal_callback
(
va_list
args
,
struct
tcl_signal_handler
*
handler
);
static
Tcl_Obj
*
new_cb_namespace
(
void
);
void
tcl_signal_init
()
{
tcl_callbacks
=
NULL
;
}
void
tcl_signal_handler_free
(
struct
tcl_signal_handler
*
handler
)
{
if
(
handler
==
NULL
)
return
;
Tcl_DecrRefCount
(
handler
->
signal
);
Tcl_DecrRefCount
(
handler
->
namespace
);
g_free
(
handler
);
}
void
tcl_signal_cleanup
(
Tcl_Interp
*
interp
)
{
GList
*
cur
;
struct
tcl_signal_handler
*
handler
;
for
(
cur
=
tcl_callbacks
;
cur
!=
NULL
;
cur
=
g_list_next
(
cur
))
{
handler
=
cur
->
data
;
if
(
handler
->
interp
==
interp
)
{
tcl_signal_handler_free
(
handler
);
cur
->
data
=
NULL
;
}
}
tcl_callbacks
=
g_list_remove_all
(
tcl_callbacks
,
NULL
);
}
gboolean
tcl_signal_connect
(
struct
tcl_signal_handler
*
handler
)
{
GString
*
proc
;
gaim_signal_get_values
(
handler
->
instance
,
Tcl_GetString
(
handler
->
signal
),
&
handler
->
returntype
,
&
handler
->
nargs
,
&
handler
->
argtypes
);
tcl_signal_disconnect
(
handler
->
interp
,
Tcl_GetString
(
handler
->
signal
),
handler
->
interp
);
if
(
!
gaim_signal_connect_vargs
(
handler
->
instance
,
Tcl_GetString
(
handler
->
signal
),
(
void
*
)
handler
->
interp
,
GAIM_CALLBACK
(
tcl_signal_callback
),
(
void
*
)
handler
))
return
FALSE
;
Tcl_IncrRefCount
(
handler
->
signal
);
handler
->
namespace
=
new_cb_namespace
();
Tcl_IncrRefCount
(
handler
->
namespace
);
proc
=
g_string_new
(
""
);
g_string_append_printf
(
proc
,
"namespace eval %s { proc cb { %s } { %s } }"
,
Tcl_GetString
(
handler
->
namespace
),
Tcl_GetString
(
handler
->
args
),
Tcl_GetString
(
handler
->
proc
));
if
(
Tcl_Eval
(
handler
->
interp
,
proc
->
str
)
!=
TCL_OK
)
{
Tcl_DecrRefCount
(
handler
->
namespace
);
g_string_free
(
proc
,
TRUE
);
return
FALSE
;
}
g_string_free
(
proc
,
TRUE
);
tcl_callbacks
=
g_list_append
(
tcl_callbacks
,
(
gpointer
)
handler
);
return
TRUE
;
}
void
tcl_signal_disconnect
(
void
*
instance
,
const
char
*
signal
,
Tcl_Interp
*
interp
)
{
GList
*
cur
;
struct
tcl_signal_handler
*
handler
;
gboolean
found
=
FALSE
;
GString
*
cmd
;
for
(
cur
=
tcl_callbacks
;
cur
!=
NULL
;
cur
=
g_list_next
(
cur
))
{
handler
=
cur
->
data
;
if
(
handler
->
interp
==
interp
&&
handler
->
instance
==
instance
&&
!
strcmp
(
signal
,
Tcl_GetString
(
handler
->
signal
)))
{
gaim_signal_disconnect
(
instance
,
signal
,
handler
->
interp
,
GAIM_CALLBACK
(
tcl_signal_callback
));
cmd
=
g_string_sized_new
(
64
);
g_string_printf
(
cmd
,
"namespace delete %s"
,
Tcl_GetString
(
handler
->
namespace
));
Tcl_EvalEx
(
interp
,
cmd
->
str
,
-1
,
TCL_EVAL_GLOBAL
);
tcl_signal_handler_free
(
handler
);
g_string_free
(
cmd
,
TRUE
);
cur
->
data
=
NULL
;
found
=
TRUE
;
break
;
}
}
if
(
found
)
tcl_callbacks
=
g_list_remove_all
(
tcl_callbacks
,
NULL
);
}
static
void
*
tcl_signal_callback
(
va_list
args
,
struct
tcl_signal_handler
*
handler
)
{
GString
*
name
,
*
val
;
GaimBlistNode
*
node
;
int
error
,
i
;
void
*
retval
=
NULL
;
Tcl_Obj
*
cmd
,
*
arg
,
*
result
;
void
**
vals
;
/* Used for inout parameters */
char
***
strs
;
vals
=
g_new0
(
void
*
,
handler
->
nargs
);
strs
=
g_new0
(
char
**
,
handler
->
nargs
);
name
=
g_string_sized_new
(
32
);
val
=
g_string_sized_new
(
32
);
cmd
=
Tcl_NewListObj
(
0
,
NULL
);
Tcl_IncrRefCount
(
cmd
);
arg
=
Tcl_DuplicateObj
(
handler
->
namespace
);
Tcl_AppendStringsToObj
(
arg
,
"::cb"
,
NULL
);
Tcl_ListObjAppendElement
(
handler
->
interp
,
cmd
,
arg
);
for
(
i
=
0
;
i
<
handler
->
nargs
;
i
++
)
{
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
g_string_printf
(
name
,
"%s::arg%d"
,
Tcl_GetString
(
handler
->
namespace
),
i
);
switch
(
gaim_value_get_type
(
handler
->
argtypes
[
i
]))
{
case
GAIM_TYPE_UNKNOWN
:
/* What? I guess just pass the word ... */
/* treat this as a pointer, but complain first */
gaim_debug
(
GAIM_DEBUG_ERROR
,
"tcl"
,
"unknown GaimValue type %d
\n
"
,
gaim_value_get_type
(
handler
->
argtypes
[
i
]));
case
GAIM_TYPE_POINTER
:
case
GAIM_TYPE_OBJECT
:
case
GAIM_TYPE_BOXED
:
/* These are all "pointer" types to us */
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
vals
[
i
]
=
va_arg
(
args
,
void
**
);
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
vals
[
i
],
TCL_LINK_INT
);
arg
=
Tcl_NewStringObj
(
name
->
str
,
-1
);
}
else
{
arg
=
Tcl_NewIntObj
((
int
)
va_arg
(
args
,
void
*
));
}
break
;
case
GAIM_TYPE_BOOLEAN
:
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
vals
[
i
]
=
va_arg
(
args
,
gboolean
*
);
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
(
char
*
)
&
vals
[
i
],
TCL_LINK_BOOLEAN
);
arg
=
Tcl_NewStringObj
(
name
->
str
,
-1
);
}
else
{
arg
=
Tcl_NewBooleanObj
(
va_arg
(
args
,
gboolean
));
}
break
;
case
GAIM_TYPE_CHAR
:
case
GAIM_TYPE_UCHAR
:
case
GAIM_TYPE_SHORT
:
case
GAIM_TYPE_USHORT
:
case
GAIM_TYPE_INT
:
case
GAIM_TYPE_UINT
:
case
GAIM_TYPE_LONG
:
case
GAIM_TYPE_ULONG
:
case
GAIM_TYPE_ENUM
:
/* I should really cast these individually to
* preserve as much information as possible ...
* but heh */
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
vals
[
i
]
=
va_arg
(
args
,
int
*
);
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
vals
[
i
],
TCL_LINK_INT
);
arg
=
Tcl_NewStringObj
(
name
->
str
,
-1
);
}
else
{
arg
=
Tcl_NewIntObj
(
va_arg
(
args
,
int
));
}
case
GAIM_TYPE_INT64
:
case
GAIM_TYPE_UINT64
:
/* Tcl < 8.4 doesn't have wide ints, so we have ugly
* ifdefs in here */
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
vals
[
i
]
=
(
void
*
)
va_arg
(
args
,
gint64
*
);
#if (TCL_MAJOR_VERSION >= 8 && TCL_MINOR_VERSION >= 4)
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
vals
[
i
],
TCL_LINK_WIDE_INT
);
#else
/* This is going to cause weirdness at best,
* but what do you want ... we're losing
* precision */
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
vals
[
i
],
TCL_LINK_INT
);
#endif
/* Tcl >= 8.4 */
arg
=
Tcl_NewStringObj
(
name
->
str
,
-1
);
}
else
{
#if (TCL_MAJOR_VERSION >= 8 && TCL_MINOR_VERSION >= 4)
arg
=
Tcl_NewWideIntObj
(
va_arg
(
args
,
gint64
));
#else
arg
=
Tcl_NewIntObj
((
int
)
va_arg
(
args
,
int
));
#endif
/* Tcl >= 8.4 */
}
break
;
case
GAIM_TYPE_STRING
:
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
strs
[
i
]
=
va_arg
(
args
,
char
**
);
if
(
strs
[
i
]
==
NULL
||
*
strs
[
i
]
==
NULL
)
{
vals
[
i
]
=
ckalloc
(
1
);
*
(
char
*
)
vals
[
i
]
=
'\0'
;
}
else
{
vals
[
i
]
=
ckalloc
(
strlen
(
*
strs
[
i
])
+
1
);
strcpy
(
vals
[
i
],
*
strs
[
i
]);
}
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
(
char
*
)
&
vals
[
i
],
TCL_LINK_STRING
);
arg
=
Tcl_NewStringObj
(
name
->
str
,
-1
);
}
else
{
arg
=
Tcl_NewStringObj
(
va_arg
(
args
,
char
*
),
-1
);
}
break
;
case
GAIM_TYPE_SUBTYPE
:
switch
(
gaim_value_get_subtype
(
handler
->
argtypes
[
i
]))
{
case
GAIM_SUBTYPE_UNKNOWN
:
gaim_debug
(
GAIM_DEBUG_ERROR
,
"tcl"
,
"subtype unknown
\n
"
);
case
GAIM_SUBTYPE_ACCOUNT
:
case
GAIM_SUBTYPE_CONNECTION
:
case
GAIM_SUBTYPE_CONVERSATION
:
case
GAIM_SUBTYPE_PLUGIN
:
case
GAIM_SUBTYPE_XFER
:
/* pointers again */
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
vals
[
i
]
=
va_arg
(
args
,
void
**
);
Tcl_LinkVar
(
handler
->
interp
,
name
->
str
,
vals
[
i
],
TCL_LINK_INT
);
arg
=
Tcl_NewStringObj
(
name
->
str
,
-1
);
}
else
{
arg
=
Tcl_NewIntObj
((
int
)
va_arg
(
args
,
void
*
));
}
break
;
case
GAIM_SUBTYPE_BLIST
:
case
GAIM_SUBTYPE_BLIST_BUDDY
:
case
GAIM_SUBTYPE_BLIST_GROUP
:
case
GAIM_SUBTYPE_BLIST_CHAT
:
/* We're going to switch again for code-deduping */
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
node
=
*
va_arg
(
args
,
GaimBlistNode
**
);
else
node
=
va_arg
(
args
,
GaimBlistNode
*
);
switch
(
node
->
type
)
{
case
GAIM_BLIST_GROUP_NODE
:
g_string_printf
(
val
,
"group {%s}"
,
((
GaimGroup
*
)
node
)
->
name
);
break
;
case
GAIM_BLIST_CONTACT_NODE
:
/* g_string_printf(val, "contact {%s}", Contact Name? ); */
break
;
case
GAIM_BLIST_BUDDY_NODE
:
g_string_printf
(
val
,
"buddy {%s} %lu"
,
((
GaimBuddy
*
)
node
)
->
name
,
(
unsigned
long
)((
GaimBuddy
*
)
node
)
->
account
);
break
;
case
GAIM_BLIST_CHAT_NODE
:
g_string_printf
(
val
,
"chat {%s} %lu"
,
((
GaimChat
*
)
node
)
->
alias
,
(
unsigned
long
)((
GaimChat
*
)
node
)
->
account
);
break
;
case
GAIM_BLIST_OTHER_NODE
:
g_string_printf
(
val
,
"other"
);
break
;
}
arg
=
Tcl_NewStringObj
(
val
->
str
,
-1
);
break
;
}
}
Tcl_ListObjAppendElement
(
handler
->
interp
,
cmd
,
arg
);
}
/* Call the friggin' procedure already */
if
((
error
=
Tcl_EvalObjEx
(
handler
->
interp
,
cmd
,
TCL_EVAL_GLOBAL
))
!=
TCL_OK
)
{
gaim_debug
(
GAIM_DEBUG_ERROR
,
"tcl"
,
"error evaluating callback: %s
\n
"
,
Tcl_GetString
(
Tcl_GetObjResult
(
handler
->
interp
)));
}
else
{
result
=
Tcl_GetObjResult
(
handler
->
interp
);
/* handle return values -- strings and words only */
if
(
handler
->
returntype
)
{
if
(
gaim_value_get_type
(
handler
->
returntype
)
==
GAIM_TYPE_STRING
)
{
retval
=
(
void
*
)
g_strdup
(
Tcl_GetString
(
result
));
}
else
{
if
((
error
=
Tcl_GetIntFromObj
(
handler
->
interp
,
result
,
(
int
*
)
&
retval
))
!=
TCL_OK
)
{
gaim_debug
(
GAIM_DEBUG_ERROR
,
"tcl"
,
"Error retrieving procedure result: %s
\n
"
,
Tcl_GetString
(
Tcl_GetObjResult
(
handler
->
interp
)));
retval
=
NULL
;
}
}
}
}
/* And finally clean up */
for
(
i
=
0
;
i
<
handler
->
nargs
;
i
++
)
{
g_string_printf
(
name
,
"%s::arg%d"
,
Tcl_GetString
(
handler
->
namespace
),
i
);
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
Tcl_UnlinkVar
(
handler
->
interp
,
name
->
str
);
/* We basically only have to deal with strings on the
* way out */
switch
(
gaim_value_get_type
(
handler
->
argtypes
[
i
]))
{
case
GAIM_TYPE_STRING
:
if
(
gaim_value_is_outgoing
(
handler
->
argtypes
[
i
]))
{
if
(
vals
[
i
]
!=
NULL
&&
*
(
char
**
)
vals
[
i
]
!=
NULL
)
{
g_free
(
*
strs
[
i
]);
*
strs
[
i
]
=
g_strdup
(
vals
[
i
]);
}
ckfree
(
vals
[
i
]);
}
break
;
default
:
/* nothing */
;
}
}
g_string_free
(
name
,
TRUE
);
g_string_free
(
val
,
TRUE
);
g_free
(
vals
);
g_free
(
strs
);
return
retval
;
}
static
Tcl_Obj
*
new_cb_namespace
()
{
static
int
cbnum
;
char
name
[
32
];
g_snprintf
(
name
,
sizeof
(
name
),
"::gaim::_callback::cb_%d"
,
cbnum
++
);
return
Tcl_NewStringObj
(
name
,
-1
);
}