void
replymsg(Wsysmsg *m)
{
int n;
static uchar *mbuf;
static int nmbuf;
/* T -> R msg */
if(m->type%2 == 0)
m->type++;
if(trace) fprint(2, "-> %W\n", m);
/* copy to output buffer */
n = sizeW2M(m);
qlock(&replylock);
if(n > nmbuf){
free(mbuf);
mbuf = malloc(n);
if(mbuf == nil)
sysfatal("out of memory");
nmbuf = n;
}
convW2M(m, mbuf, n);
if(write(4, mbuf, n) != n)
sysfatal("write: %r");
qunlock(&replylock);
}
/*
* Reply to m.
*/
void
replymsg(Wsysmsg *m)
{
int n;
/* T -> R msg */
if(m->type%2 == 0)
m->type++;
/* fprint(2, "-> %W\n", m); */
/* copy to output buffer */
n = sizeW2M(m);
if(fdout.wp+n > fdout.ep)
sysfatal("out of space for reply message");
convW2M(m, fdout.wp, n);
fdout.wp += n;
}
uint
convW2M(Wsysmsg *m, uchar *p, uint n)
{
int nn;
nn = sizeW2M(m);
if(n < nn || nn == 0 || n < 6)
return 0;
PUT(p, nn);
p[4] = m->tag;
p[5] = m->type;
switch(m->type){
default:
return 0;
case Trdmouse:
case Rbouncemouse:
case Rmoveto:
case Rcursor:
case Trdkbd:
case Rlabel:
case Rinit:
case Trdsnarf:
case Rwrsnarf:
case Ttop:
case Rtop:
case Rresize:
break;
case Rerror:
PUTSTRING(p+6, m->error);
break;
case Rrdmouse:
PUT(p+6, m->mouse.xy.x);
PUT(p+10, m->mouse.xy.y);
PUT(p+14, m->mouse.buttons);
PUT(p+18, m->mouse.msec);
p[19] = m->resized;
break;
case Tbouncemouse:
PUT(p+6, m->mouse.xy.x);
PUT(p+10, m->mouse.xy.y);
PUT(p+14, m->mouse.buttons);
break;
case Tmoveto:
PUT(p+6, m->mouse.xy.x);
PUT(p+10, m->mouse.xy.y);
break;
case Tcursor:
PUT(p+6, m->cursor.offset.x);
PUT(p+10, m->cursor.offset.y);
memmove(p+14, m->cursor.clr, sizeof m->cursor.clr);
memmove(p+46, m->cursor.set, sizeof m->cursor.set);
PUT(p+78, m->cursor2.offset.x);
PUT(p+82, m->cursor2.offset.y);
memmove(p+86, m->cursor2.clr, sizeof m->cursor2.clr);
memmove(p+214, m->cursor2.set, sizeof m->cursor2.set);
p[342] = m->arrowcursor;
break;
case Rrdkbd:
PUT2(p+6, m->rune);
break;
case Tlabel:
PUTSTRING(p+6, m->label);
break;
case Tinit:
p += 6;
p += PUTSTRING(p, m->winsize);
p += PUTSTRING(p, m->label);
break;
case Rrdsnarf:
case Twrsnarf:
PUTSTRING(p+6, m->snarf);
break;
case Rrddraw:
case Twrdraw:
PUT(p+6, m->count);
memmove(p+10, m->data, m->count);
break;
case Trddraw:
case Rwrdraw:
PUT(p+6, m->count);
break;
case Tresize:
PUT(p+6, m->rect.min.x);
PUT(p+10, m->rect.min.y);
PUT(p+14, m->rect.max.x);
PUT(p+18, m->rect.max.y);
break;
}
return nn;
}