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#include "xb_config.h"
#include <stdio.h>
#ifndef vms
#include <unistd.h>
#else
#include <ssdef.h>
#endif
#include <string.h>
#include <time.h>
#include <X11/Xlib.h>
#include <X11/Xatom.h>
#include <X11/Xutil.h>
#include "xbanner.h"
/* for now I need this */
#undef DEBUG
typedef enum { CommandLineSpecified, Unspecified } DispType;
/* Timeout times */
#define TMOUT_ONE (LINGER_DELAY*4)
#define TMOUT_ALL (TMOUT_ONE*20)
int main(int argc, char *argv[])
{
Display *disp;
Atom xprop,proptype;
char dispname[80];
DispType dtype = Unspecified;
Bool done=False,exited=False;
Window root;
unsigned long items,bytesleft;
unsigned char *propval;
int last,format;
unsigned long waittime,totalwait;
dispname[0]='\0';
if(argc==3)
{
if(strcmpi("-display",argv[1])==0)
{
strcpy(dispname,argv[2]);
dtype = CommandLineSpecified;
}
else
{
fprintf(stderr,"Freetemp %s - by Amit Margalit %s\nUsage: freetemp [-display <host>:<display>]\n",
VERSION,DATE);
exit(1);
}
}
else if(argc!=1)
{
fprintf(stderr,"Freetemp %s - by Amit Margalit %s\nUsage: freetemp [-display <host>:<display>]\n",
VERSION,DATE);
exit(1);
}
disp = XOpenDisplay(dtype==CommandLineSpecified ? dispname : NULL);
if(disp==NULL)
{
fprintf(stderr,"%s %s - could not open the display\n",argv[0],VERSION);
exit(1);
}
/* which is the root window ? */
root = DefaultRootWindow(disp);
#if !defined(vms)
#ifdef DEBUG
printf("Does prop exist?\n");
#endif
xprop = XInternAtom(disp,XPROPERTY,True);
if(xprop == None) /* nobody's waiting for us... */
done=True;
else
if(!XBPropExists(disp,root,xprop))
{
xprop = None;
done=True;
}
#ifdef DEBUG
if(done)
printf("Nope.\n");
else
printf("Yes.\n");
#endif
/* initialize the overall timer */
totalwait=0;
while(!done)
{
XGetWindowProperty(disp,root,xprop,0,20,False,XA_STRING,&proptype,
&format,&items,&bytesleft,&propval);
#ifdef DEBUG
printf("Got property: \"%s\"\n",propval);
#endif
last = propval[strlen((char*)propval)-1] - '0';
#ifdef DEBUG
printf("Last: %d\n",last);
#endif
if(propval[0]=='D' && propval[1]==last+'0')
{
#ifdef DEBUG
printf("Exited, propval=\"%s\"\n",propval);
#endif
if(last>0)
{
#ifdef DEBUG
printf("Remove one\n");
#endif
XChangeProperty(disp,root,xprop,XA_STRING,8,PropModeReplace,
propval,strlen((char*)propval)-1);
last--;
XFree(propval);
continue;
}
if(last<=0)
done=True;
XFree(propval);
continue;
}
/* write 'X%d' */
propval[0]='X';
propval[1]=last+'0';
XChangeProperty(disp,root,xprop,XA_STRING,8,PropModeReplace,
propval,strlen((char*)propval));
#ifdef DEBUG
printf("Asked #%d to exit.\n",last);
#endif
XFree(propval);
exited = False;
waittime = 0;
#ifdef DEBUG
printf("Wait till he exits.\n");
#endif
while(!exited && waittime <= TMOUT_ONE && totalwait <= TMOUT_ALL)
{
usleep(LINGER_DELAY);
waittime+=LINGER_DELAY;
totalwait+=LINGER_DELAY;
XGetWindowProperty(disp,root,xprop,0,20,False,XA_STRING,&proptype,
&format,&items,&bytesleft,&propval);
#ifdef DEBUG
printf("Got property: \"%s\"\n",propval);
#endif
if(propval[0]=='D' && propval[1]==last+'0')
{
exited=True;
#ifdef DEBUG
printf("Exited, propval=\"%s\"\n",propval);
#endif
}
else /* otherwise we can't use it when the while() ends */
XFree(propval);
}
#ifdef DEBUG
if(waittime>TMOUT_ONE)
printf("Timed out waiting for #%d\n",last);
printf("Exited=%s\n",(exited?"True":"False"));
#endif
if(totalwait > TMOUT_ALL)
{
#ifdef DEBUG
printf("TotalWait > TMOUT_ALL!!!\n");
#endif
break;
}
if(exited && last>0)
{
#ifdef DEBUG
printf("Remove one\n");
#endif
XChangeProperty(disp,root,xprop,XA_STRING,8,PropModeReplace,
propval,strlen((char*)propval)-1);
last--;
XFree(propval);
continue;
}
if(exited && last<=0)
done=True;
XFree(propval);
}
/* sleep as a safety margin */
usleep(LINGER_DELAY);
if(xprop!=None)
{
#ifdef DEBUG
printf("Del property\n");
#endif
XDeleteProperty(disp,root,xprop);
}
#endif /* !defined(vms) */
/* now free up the temporary resources */
XKillClient(disp,AllTemporary);
XSync(disp,True);
XCloseDisplay(disp);
#ifdef vms
return SS$_NORMAL;
#else
return 0;
#endif
}
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