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#include "acd.h"
int debug;
void
usage(void)
{
fprint(2, "usage: acd dev\n");
threadexitsall("usage");
}
Alt
mkalt(Channel *c, void *v, int op)
{
Alt a;
memset(&a, 0, sizeof(a));
a.c = c;
a.v = v;
a.op = op;
return a;
}
void
freetoc(Toc *t)
{
int i;
free(t->title);
for(i=0; i<t->ntrack; i++)
free(t->track[i].title);
}
void
eventwatcher(Drive *d)
{
enum { STATUS, WEVENT, TOCDISP, DBREQ, DBREPLY, NALT };
Alt alts[NALT+1];
Toc nt, tdb;
Event *e;
Window *w;
Cdstatus s;
char buf[40];
w = d->w;
alts[STATUS] = mkalt(d->cstatus, &s, CHANRCV);
alts[WEVENT] = mkalt(w->cevent, &e, CHANRCV);
alts[TOCDISP] = mkalt(d->ctocdisp, &nt, CHANRCV);
alts[DBREQ] = mkalt(d->cdbreq, &tdb, CHANNOP);
alts[DBREPLY] = mkalt(d->cdbreply, &nt, CHANRCV);
alts[NALT] = mkalt(nil, nil, CHANEND);
for(;;) {
switch(alt(alts)) {
case STATUS:
//DPRINT(2, "s...");
d->status = s;
if(s.state == Scompleted) {
s.state = Sunknown;
advancetrack(d, w);
}
//DPRINT(2, "status %d %d %d %M %M\n", s.state, s.track, s.index, s.abs, s.rel);
sprint(buf, "%d:%2.2d", s.rel.m, s.rel.s);
setplaytime(w, buf);
break;
case WEVENT:
//DPRINT(2, "w...");
acmeevent(d, w, e);
break;
case TOCDISP:
//DPRINT(2,"td...");
freetoc(&d->toc);
d->toc = nt;
drawtoc(w, d, &d->toc);
tdb = nt;
alts[DBREQ].op = CHANSND;
break;
case DBREQ: /* sent */
//DPRINT(2,"dreq...");
alts[DBREQ].op = CHANNOP;
break;
case DBREPLY:
//DPRINT(2,"drep...");
freetoc(&d->toc);
d->toc = nt;
redrawtoc(w, &d->toc);
break;
}
}
}
void
threadmain(int argc, char **argv)
{
Scsi *s;
Drive *d;
char buf[80];
ARGBEGIN{
case 'v':
debug++;
scsiverbose++;
}ARGEND
if(argc != 1)
usage();
fmtinstall('M', msfconv);
if((s = openscsi(argv[0])) == nil)
error("opening scsi: %r");
d = malloc(sizeof(*d));
if(d == nil)
error("out of memory");
memset(d, 0, sizeof d);
d->scsi = s;
d->w = newwindow();
d->ctocdisp = chancreate(sizeof(Toc), 0);
d->cdbreq = chancreate(sizeof(Toc), 0);
d->cdbreply = chancreate(sizeof(Toc), 0);
d->cstatus = chancreate(sizeof(Cdstatus), 0);
proccreate(wineventproc, d->w, STACK);
proccreate(cddbproc, d, STACK);
proccreate(cdstatusproc, d, STACK);
cleanname(argv[0]);
snprint(buf, sizeof(buf), "%s/", argv[0]);
winname(d->w, buf);
wintagwrite(d->w, "Stop Pause Resume Eject Ingest ", 5+6+7+6+7);
eventwatcher(d);
}
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