mirror of https://github.com/MidnightCommander/mc
82 lines
1.8 KiB
C
82 lines
1.8 KiB
C
/*
|
|
* Midnight Commander -- GNOME edition
|
|
*
|
|
* Copyright 1997 The Free Software Foundation
|
|
*
|
|
* Author:Miguel de Icaza (miguel@gnu.org)
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include "mad.h"
|
|
#include "x.h"
|
|
#include "key.h"
|
|
|
|
/* The tty.h file is included since we try to use as much object code
|
|
* from the curses distribution as possible so we need to send back
|
|
* the same constants that the code expects on the non-X version
|
|
* of the code. The constants may be the ones from curses/ncurses
|
|
* or our macro definitions for slang
|
|
*/
|
|
|
|
struct trampoline {
|
|
select_fn fn;
|
|
void *fn_closure;
|
|
int fd;
|
|
int tag;
|
|
};
|
|
|
|
void
|
|
callback_trampoline (gpointer data, gint source, GdkInputCondition condition)
|
|
{
|
|
struct trampoline *t = data;
|
|
|
|
/* return value is ignored */
|
|
(*t->fn)(source, t->fn_closure);
|
|
}
|
|
|
|
/*
|
|
* We need to keep track of the select callbacks, as we need to release
|
|
* the trampoline closure.
|
|
*/
|
|
|
|
GList *select_list;
|
|
|
|
void
|
|
add_select_channel (int fd, select_fn callback, void *info)
|
|
{
|
|
struct trampoline *t;
|
|
|
|
t = xmalloc (sizeof (struct trampoline), "add_select_channel");
|
|
t->fn = callback;
|
|
t->fd = fd;
|
|
t->fn_closure = info;
|
|
t->tag = gdk_input_add (fd, GDK_INPUT_READ, callback_trampoline, t);
|
|
g_list_prepend (select_list, t);
|
|
}
|
|
|
|
static struct trampoline *tclosure;
|
|
|
|
static void
|
|
find_select_closure_callback (gpointer data, gpointer user_data)
|
|
{
|
|
struct trampoline *t = data;
|
|
int *pfd = (int *) user_data;
|
|
|
|
if (t->fd == *pfd)
|
|
tclosure = data;
|
|
}
|
|
|
|
void
|
|
delete_select_channel (int fd)
|
|
{
|
|
tclosure = 0;
|
|
g_list_foreach (select_list, find_select_closure_callback, &fd);
|
|
if (tclosure){
|
|
select_list = g_list_remove (select_list, tclosure);
|
|
gdk_input_remove (tclosure->tag);
|
|
free (tclosure);
|
|
} else {
|
|
fprintf (stderr, "PANIC: could not find closure for %d\n", fd);
|
|
}
|
|
}
|