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Annotation of 43BSD/contrib/X/Xlib/XQueryColors.c, revision 1.1.1.1

1.1       root        1: #include <X/mit-copyright.h>
                      2: 
                      3: /* $Header: XQueryColors.c,v 10.4 86/02/01 15:38:50 tony Rel $ */
                      4: /* Copyright    Massachusetts Institute of Technology    1985  */
                      5: 
                      6: #include "XlibInternal.h"
                      7: #define MAXREQS 80  /* to prevent deadlock due to full TCP buffers */
                      8: 
                      9: XQueryColors (colors, ncolors)
                     10:        Color colors[];
                     11:        int ncolors;
                     12: {
                     13:        register Display *dpy;
                     14:        register XReq *req;
                     15:        register int i;
                     16:        register Color *color = colors;
                     17:        XRep rep;
                     18: 
                     19:        while (ncolors > 0) {
                     20:            register int nreqs = (ncolors > MAXREQS) ? MAXREQS : ncolors;
                     21:            for (i=0;i<nreqs;i++) {
                     22:                GetReq (X_QueryColor, 0);
                     23:                req->param.u[0] = (color++)->pixel;
                     24:                }
                     25: 
                     26:            /* Reset request number, so error packets are handled correctly */
                     27:            dpy->request -= nreqs;
                     28:            color -= nreqs;
                     29: 
                     30:            for (i=0;i<nreqs;i++) {
                     31:                /* Increment request number, so error packets are handled
                     32:                    correctly */
                     33:                dpy->request++;
                     34:                _XReply (dpy, &rep);
                     35:                color->red = rep.param.u[0];
                     36:                color->green = rep.param.u[1];
                     37:                (color++)->blue = rep.param.u[2];
                     38:                }
                     39:            
                     40:            ncolors -= nreqs;
                     41:            }
                     42: }
                     43: 

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