removing (outdated) drawterm

drawterm is much better maintained by russ cox,
so removing this outdated copy.

for a more recent version, go to:

http://swtch.com/drawterm/

1 files changed, 0 insertions, 272 deletions

diff --git a/sys/src/cmd/unix/drawterm/kern/pgrp.c b/sys/src/cmd/unix/drawterm/kern/pgrp.c
deleted file mode 100644
index 30b1f3e7b..000000000
--- a/sys/src/cmd/unix/drawterm/kern/pgrp.c
+++ /dev/null
@@ -1,272 +0,0 @@
-#include	"u.h"
-#include	"lib.h"
-#include	"dat.h"
-#include	"fns.h"
-#include	"error.h"
-
-static Ref pgrpid;
-static Ref mountid;
-
-#ifdef NOTDEF
-void
-pgrpnote(ulong noteid, char *a, long n, int flag)
-{
-	Proc *p, *ep;
-	char buf[ERRMAX];
-
-	if(n >= ERRMAX-1)
-		error(Etoobig);
-
-	memmove(buf, a, n);
-	buf[n] = 0;
-	p = proctab(0);
-	ep = p+conf.nproc;
-	for(; p < ep; p++) {
-		if(p->state == Dead)
-			continue;
-		if(up != p && p->noteid == noteid && p->kp == 0) {
-			qlock(&p->debug);
-			if(p->pid == 0 || p->noteid != noteid){
-				qunlock(&p->debug);
-				continue;
-			}
-			if(!waserror()) {
-				postnote(p, 0, buf, flag);
-				poperror();
-			}
-			qunlock(&p->debug);
-		}
-	}
-}
-#endif
-
-Pgrp*
-newpgrp(void)
-{
-	Pgrp *p;
-
-	p = smalloc(sizeof(Pgrp));
-	p->ref.ref = 1;
-	p->pgrpid = incref(&pgrpid);
-	return p;
-}
-
-Rgrp*
-newrgrp(void)
-{
-	Rgrp *r;
-
-	r = smalloc(sizeof(Rgrp));
-	r->ref.ref = 1;
-	return r;
-}
-
-void
-closergrp(Rgrp *r)
-{
-	if(decref(&r->ref) == 0)
-		free(r);
-}
-
-void
-closepgrp(Pgrp *p)
-{
-	Mhead **h, **e, *f, *next;
-
-	if(decref(&p->ref) != 0)
-		return;
-
-	qlock(&p->debug);
-	wlock(&p->ns);
-	p->pgrpid = -1;
-
-	e = &p->mnthash[MNTHASH];
-	for(h = p->mnthash; h < e; h++) {
-		for(f = *h; f; f = next) {
-			wlock(&f->lock);
-			cclose(f->from);
-			mountfree(f->mount);
-			f->mount = nil;
-			next = f->hash;
-			wunlock(&f->lock);
-			putmhead(f);
-		}
-	}
-	wunlock(&p->ns);
-	qunlock(&p->debug);
-	free(p);
-}
-
-void
-pgrpinsert(Mount **order, Mount *m)
-{
-	Mount *f;
-
-	m->order = 0;
-	if(*order == 0) {
-		*order = m;
-		return;
-	}
-	for(f = *order; f; f = f->order) {
-		if(m->mountid < f->mountid) {
-			m->order = f;
-			*order = m;
-			return;
-		}
-		order = &f->order;
-	}
-	*order = m;
-}
-
-/*
- * pgrpcpy MUST preserve the mountid allocation order of the parent group
- */
-void
-pgrpcpy(Pgrp *to, Pgrp *from)
-{
-	int i;
-	Mount *n, *m, **link, *order;
-	Mhead *f, **tom, **l, *mh;
-
-	wlock(&from->ns);
-	order = 0;
-	tom = to->mnthash;
-	for(i = 0; i < MNTHASH; i++) {
-		l = tom++;
-		for(f = from->mnthash[i]; f; f = f->hash) {
-			rlock(&f->lock);
-			mh = newmhead(f->from);
-			*l = mh;
-			l = &mh->hash;
-			link = &mh->mount;
-			for(m = f->mount; m; m = m->next) {
-				n = newmount(mh, m->to, m->mflag, m->spec);
-				m->copy = n;
-				pgrpinsert(&order, m);
-				*link = n;
-				link = &n->next;
-			}
-			runlock(&f->lock);
-		}
-	}
-	/*
-	 * Allocate mount ids in the same sequence as the parent group
-	 */
-	lock(&mountid.lk);
-	for(m = order; m; m = m->order)
-		m->copy->mountid = mountid.ref++;
-	unlock(&mountid.lk);
-	wunlock(&from->ns);
-}
-
-Fgrp*
-dupfgrp(Fgrp *f)
-{
-	Fgrp *new;
-	Chan *c;
-	int i;
-
-	new = smalloc(sizeof(Fgrp));
-	if(f == nil){
-		new->fd = smalloc(DELTAFD*sizeof(Chan*));
-		new->nfd = DELTAFD;
-		new->ref.ref = 1;
-		return new;
-	}
-
-	lock(&f->ref.lk);
-	/* Make new fd list shorter if possible, preserving quantization */
-	new->nfd = f->maxfd+1;
-	i = new->nfd%DELTAFD;
-	if(i != 0)
-		new->nfd += DELTAFD - i;
-	new->fd = malloc(new->nfd*sizeof(Chan*));
-	if(new->fd == 0){
-		unlock(&f->ref.lk);
-		error("no memory for fgrp");
-	}
-	new->ref.ref = 1;
-
-	new->maxfd = f->maxfd;
-	for(i = 0; i <= f->maxfd; i++) {
-		if((c = f->fd[i])){
-			incref(&c->ref);
-			new->fd[i] = c;
-		}
-	}
-	unlock(&f->ref.lk);
-
-	return new;
-}
-
-void
-closefgrp(Fgrp *f)
-{
-	int i;
-	Chan *c;
-
-	if(f == 0)
-		return;
-
-	if(decref(&f->ref) != 0)
-		return;
-
-	for(i = 0; i <= f->maxfd; i++)
-		if((c = f->fd[i]))
-			cclose(c);
-
-	free(f->fd);
-	free(f);
-}
-
-Mount*
-newmount(Mhead *mh, Chan *to, int flag, char *spec)
-{
-	Mount *m;
-
-	m = smalloc(sizeof(Mount));
-	m->to = to;
-	m->head = mh;
-	incref(&to->ref);
-	m->mountid = incref(&mountid);
-	m->mflag = flag;
-	if(spec != 0)
-		kstrdup(&m->spec, spec);
-
-	return m;
-}
-
-void
-mountfree(Mount *m)
-{
-	Mount *f;
-
-	while(m) {
-		f = m->next;
-		cclose(m->to);
-		m->mountid = 0;
-		free(m->spec);
-		free(m);
-		m = f;
-	}
-}
-
-#ifdef NOTDEF
-void
-resrcwait(char *reason)
-{
-	char *p;
-
-	if(up == 0)
-		panic("resrcwait");
-
-	p = up->psstate;
-	if(reason) {
-		up->psstate = reason;
-		print("%s\n", reason);
-	}
-
-	tsleep(&up->sleep, return0, 0, 300);
-	up->psstate = p;
-}
-#endif