#include <stdio.h>
#include <stdlib.h>

#include <pthread.h>

#include <X11/X.h>
#include <X11/Xlib.h>

class xDisplay
{
public:
	xDisplay() {
		_disp = XOpenDisplay(NULL);
	}
	~xDisplay() {
		if (_disp != NULL) {
			XCloseDisplay(_disp);
			_disp = NULL;
		}
	}
	operator Display* () { return _disp; }
private:
	Display* _disp;
}; // Display

xDisplay display;

void*
tproc(void* param)
{
	XEvent ev;
	while (1) {
		XNextEvent(display, &ev);
	}
	return 0;
}

void
create_thread()
{
	pthread_t pt;
	pthread_create(&pt, NULL, tproc, NULL);
}

void
alloc_colors()
{
	Colormap cmap = DefaultColormap((Display*)display,
		DefaultScreen((Display*)display));
	unsigned long pixels[1024];
	unsigned int npixels = 54;
	while (1) {
		if (XAllocColorCells(display, cmap, False, NULL, 0, pixels,
		    npixels) == 0) {
			break;
		}
		XFreeColors(display, cmap, pixels, npixels, 0);
		npixels ++;
	}
}

int
main()
{
	int count = 0;
	XInitThreads();
	create_thread();
	alloc_colors();
}