1993/1015/port/devmnt.c (diff list | history)

1993/1014/sys/src/9/port/devmnt.c:66,71 – 1993/1015/sys/src/9/port/devmnt.c:66,73 (short | long | prev | next)
1990/0227		{
1991/0911		mntalloc.id = 1;
1992/0620		mntalloc.rpctag = Tagspace;
1993/1015		cinit();
1990/0604		}
1990/0227		void
1993/1014/sys/src/9/port/devmnt.c:83,89 – 1993/1015/sys/src/9/port/devmnt.c:85,91
1990/0227		struct bogus{ Chan *chan; char *spec;
1993/1014		int flag;
1993/1015		int flags;
1990/0227		}bogus;
1991/0911		bogus = *((struct bogus *)muxattach);
1993/1014/sys/src/9/port/devmnt.c:91,97 – 1993/1015/sys/src/9/port/devmnt.c:93,99
1992/0620		lock(&mntalloc); for(m = mntalloc.list; m; m = m->list) { if(m->c == c && m->id) {
1993/1015		if(m->c == c && m->id && m->flags == bogus.flags) {
1991/0911		lock(m);
1992/0620		if(m->id && m->ref > 0 && m->c == c) { unlock(&mntalloc);
1993/1014/sys/src/9/port/devmnt.c:109,114 – 1993/1015/sys/src/9/port/devmnt.c:111,117
1991/0911		unlock(m); }
1991/0901		}
1993/1015
1991/0911		m = mntalloc.mntfree;
1992/0620		if(m != 0) mntalloc.mntfree = m->list;
1993/1014/sys/src/9/port/devmnt.c:354,359 – 1993/1015/sys/src/9/port/devmnt.c:357,366
1990/0227		c->flag |= COPEN;
1991/0911		poperror(); mntfree(r);
1993/1015		if(m->flags&MCACHE) copen(c);
1990/0227		return c; }
1993/1014/sys/src/9/port/devmnt.c:381,386 – 1993/1015/sys/src/9/port/devmnt.c:388,396
1990/0227		c->mode = openmode(omode);
1991/0911		poperror(); mntfree(r);
1993/1015		if(m->flags & MCACHE) copen(c);
1990/0227		} void
1993/1014/sys/src/9/port/devmnt.c:481,499 – 1993/1015/sys/src/9/port/devmnt.c:491,511
1990/0227		long
1991/0411		mntread(Chan *c, void *buf, long n, ulong offset)
1990/0227		{
1993/1014		int nc;
1993/1015		Mnt *m;
1991/0911		uchar *p, *e;
1993/1015		int nc, cached;
1990/0227
1993/1014		m = mntchk(c); nc = 0; if((m->flags&MCACHE) && !isdir(c)) { nc = cread(c, buf, n, offset); if(nc == n) return n;
1993/1015		cached = m->flags&MCACHE;
1993/1014		buf = (uchar*)buf+nc; offset += nc; n -= nc;
1993/1015		SET(nc); if(cached) { nc = cread(c, buf, n, offset); if(nc > 0) { buf = (uchar*)buf+nc; offset += nc; n -= nc; }
1993/1014		} n = mntrdwr(Tread, m, c, buf, n, offset);
1993/1014/sys/src/9/port/devmnt.c:501,508 – 1993/1015/sys/src/9/port/devmnt.c:513,522
1991/0911		for(p = (uchar*)buf, e = &p[n]; p < e; p += DIRLEN) mntdirfix(p, c);
1993/1014		if(nc != 0)
1993/1015		if(cached) {
1993/1014		cupdate(c, buf, n, offset);
1993/1015		n += nc; }
1993/1014
1990/0227		return n; }
1993/1014/sys/src/9/port/devmnt.c:510,517 – 1993/1015/sys/src/9/port/devmnt.c:524,530
1990/0227		long
1991/0411		mntwrite(Chan *c, void *buf, long n, ulong offset)
1990/0227		{
1993/1014		m = mntchk(c); return mntrdwr(Twrite, m, c, buf, n, offset);
1993/1015		return mntrdwr(Twrite, mntchk(c), c, buf, n, offset);
1990/0227		}
1991/0911		long
1993/1014/sys/src/9/port/devmnt.c:519,528 – 1993/1015/sys/src/9/port/devmnt.c:532,543
1990/0227		{
1991/0911		Mntrpc *r; char *uba;
1993/1015		int cache;
1992/0825		ulong cnt, nr;
1990/0227
1991/0911		uba = buf;
1993/0907		cnt = 0;
1993/1015		cache = m->flags & MCACHE;
1993/0907		for(;;) {
1993/0501		r = mntralloc(c);
1991/0911		if(waserror()) {
1993/1014/sys/src/9/port/devmnt.c:538,545 – 1993/1015/sys/src/9/port/devmnt.c:553,564
1991/0911		nr = r->reply.count;
1993/0907		if(nr > r->request.count) nr = r->request.count;
1993/1015
1991/0911		if(type == Tread) memmove(uba, r->reply.data, nr);
1993/1015		else if(cache) cwrite(c, (uchar*)r->reply.data, nr, offset);
1991/0911		poperror(); mntfree(r); offset += nr;