Dogcows Code - chaz/openbox/blob - obt/instance.c

   1 #include "obt/obt.h"
   2
   3 #ifdef HAVE_STRING_H
   4 #  include <string.h>
   5 #endif
   6 #ifdef HAVE_FCNTL_H
   7 #  include <fcntl.h>
   8 #endif
   9 #ifdef HAVE_UNISTD_H
  10 #  include <unistd.h>
  11 #endif
  12
  13 struct _ObtInstance
  14 {
  15     gint ref;
  16     Display *d;
  17 };
  18
  19 ObtInstance* obt_instance_new(const char *display_name)
  20 {
  21     gchar *n;
  22     Display *d;
  23     ObtInstance *inst = NULL;
  24
  25     n = display_name ? g_strdup(display_name) : NULL;
  26     d = XOpenDisplay(n);
  27     if (d) {
  28         if (fcntl(ConnectionNumber(d), F_SETFD, 1) == -1)
  29             g_message("Failed to set display as close-on-exec");
  30
  31         inst = g_new(ObtInstance, 1);
  32         inst->ref = 1;
  33         inst->d = d;
  34     }
  35     g_free(n);
  36
  37     return inst;
  38 }
  39
  40 void obt_instance_ref(ObtInstance *inst)
  41 {
  42     ++inst->ref;
  43 }
  44
  45 void obt_instance_unref(ObtInstance *inst)
  46 {
  47     if (inst && --inst->ref == 0) {
  48         XCloseDisplay(inst->d);
  49         obt_free0(inst, ObtInstance, 1);
  50     }
  51 }
  52
  53 Display* obt_display(const ObtInstance *inst)
  54 {
  55     return inst->d;
  56 }