obt/instance.c (raw)
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/* -*- indent-tabs-mode: nil; tab-width: 4; c-basic-offset: 4; -*-
obt/instance.c for the Openbox window manager
Copyright (c) 2007 Dana Jansens
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.
See the COPYING file for a copy of the GNU General Public License.
*/
#include "obt/obt.h"
#ifdef HAVE_STRING_H
# include <string.h>
#endif
#ifdef HAVE_FCNTL_H
# include <fcntl.h>
#endif
#ifdef HAVE_UNISTD_H
# include <unistd.h>
#endif
struct _ObtInstance
{
gint ref;
Display *d;
};
ObtInstance* obt_instance_new(const char *display_name)
{
gchar *n;
Display *d;
ObtInstance *inst = NULL;
n = display_name ? g_strdup(display_name) : NULL;
d = XOpenDisplay(n);
if (d) {
if (fcntl(ConnectionNumber(d), F_SETFD, 1) == -1)
g_message("Failed to set display as close-on-exec");
inst = g_new(ObtInstance, 1);
inst->ref = 1;
inst->d = d;
}
g_free(n);
return inst;
}
void obt_instance_ref(ObtInstance *inst)
{
++inst->ref;
}
void obt_instance_unref(ObtInstance *inst)
{
if (inst && --inst->ref == 0) {
XCloseDisplay(inst->d);
obt_free0(inst, ObtInstance, 1);
}
}
Display* obt_display(const ObtInstance *inst)
{
return inst->d;
}
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