1994/0613/port/pgrp.c (diff list | history)

1993/1115/sys/src/9/port/pgrp.c:74,91 – 1994/0613/sys/src/9/port/pgrp.c:74,115 (short | long | prev | next)
1990/0227		}
1991/0705		void
1994/0613		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
1991/0514		pgrpcpy(Pgrp *to, Pgrp *from) {
1991/1113		Mhead **h, **e, *f, **tom, **l, *mh;
1991/1011		Mount *n, *m, **link;
1994/0613		int i; Mount *n, *m, **link, *order; Mhead *f, **tom, **l, *mh;
1991/0514
1991/1011		rlock(&from->ns);                  e = &from->mnthash[MNTHASH];
1994/0613		order = 0;
1991/1113		tom = to->mnthash;
1991/1011		for(h = from->mnthash; h < e; h++) {
1994/0613		for(i = 0; i < MNTHASH; i++) {
1991/1113		l = tom++;
1991/1011		for(f = *h; f; f = f->hash) {
1994/0613		for(f = from->mnthash[i]; f; f = f->hash) {
1992/0619		mh = smalloc(sizeof(Mhead));
1991/1011		mh->from = f->from; incref(mh->from);
1993/1115/sys/src/9/port/pgrp.c:93,104 – 1994/0613/sys/src/9/port/pgrp.c:117,143
1991/1113		l = &mh->hash;
1991/1011		link = &mh->mount; for(m = f->mount; m; m = m->next) {
1993/0501		n = newmount(mh, m->to, m->flag, m->spec);
1994/0613		n = smalloc(sizeof(Mount)); n->to = m->to; incref(n->to); n->head = mh; n->flag = m->flag; if(m->spec != 0) strcpy(n->spec, m->spec); m->copy = n; pgrpinsert(&order, m);
1991/1011		*link = n; link = &n->next; }
1991/0514		}
1991/1011		}
1994/0613		/* * Allocate mount ids in the same sequence as the parent group */ lock(&mountid); for(m = order; m; m = m->order) m->copy->mountid = mountid.ref++; unlock(&mountid);
1991/1011		runlock(&from->ns); }
1991/0514