1991/1101/port/sysfile.c (diff list | history)

1991/1018/sys/src/9/port/sysfile.c:268,276 – 1991/1101/sys/src/9/port/sysfile.c:268,278 (short | long | prev | next)
1990/0227		n = unionread(c, (void*)arg[1], n); else
1991/0411		n = (*devtab[c->type].read)(c, (void*)arg[1], n, c->offset);
1990/0227		c->offset += n;
1991/0614		poperror();
1991/0411		qunlock(&c->rdl);
1991/1101		poperror(); lock(&c->offl); c->offset += n; unlock(&c->offl);
1990/0227		return n; }
1991/1018/sys/src/9/port/sysfile.c:291,299 – 1991/1101/sys/src/9/port/sysfile.c:293,303
1990/11211		if(c->qid.path & CHDIR) error(Eisdir);
1991/0411		n = (*devtab[c->type].write)(c, (void*)arg[1], arg[2], c->offset);
1990/0227		c->offset += n;
1991/0614		poperror();
1991/0411		qunlock(&c->wrl);
1991/1101		poperror(); lock(&c->offl); c->offset += n; unlock(&c->offl);
1990/0227		return n; }
1991/1018/sys/src/9/port/sysfile.c:310,329 – 1991/1101/sys/src/9/port/sysfile.c:314,330
1990/11211		error(Eisdir);
1991/0319		if(devchar[c->type] == '|') error(Eisstream);
1991/0411		qlock(&c->rdl); qlock(&c->wrl);
1990/0227		if(waserror()){
1991/0411		qunlock(&c->rdl); qunlock(&c->wrl);
1990/0227		nexterror(); }
1991/1101		off = 0;
1990/0227		switch(arg[2]){ case 0: c->offset = arg[1];
1991/1101		off = c->offset = arg[1];
1990/0227		break; case 1:
1991/1101		lock(&c->offl); /* lock for read/write update */
1990/0227		c->offset += (long)arg[1];
1991/1101		off = c->offset; unlock(&c->offl);
1990/0227		break; case 2:
1991/1018/sys/src/9/port/sysfile.c:330,341 – 1991/1101/sys/src/9/port/sysfile.c:331,339
1990/0227		(*devtab[c->type].stat)(c, buf); convM2D(buf, &dir); c->offset = dir.length + (long)arg[1];
1991/1101		off = c->offset;
1990/0227		break; } off = c->offset;
1991/0614		poperror();
1991/0411		qunlock(&c->rdl); qunlock(&c->wrl);
1990/0227		return off; }