43 lines
1.4 KiB
Groff
43 lines
1.4 KiB
Groff
.\" $OpenBSD: dolock.1,v 1.2 2010/09/09 05:40:41 jasper Exp $
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.\"
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.\" Copyright (c) 2010 Marc Espie <espie@openbsd.org>
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.\"
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.\" Permission to use, copy, modify, and distribute this software for any
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.\" purpose with or without fee is hereby granted, provided that the above
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.\" copyright notice and this permission notice appear in all copies.
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.\"
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.\" THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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.\" WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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.\" MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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.\" ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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.\" WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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.\" ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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.\" OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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.\"
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.Dd $Mdocdate: September 9 2010 $
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.Dt DOLOCK 1
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.Os
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.Sh NAME
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.Nm dolock
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.Nd lock port for concurrent builds
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.Sh SYNOPSIS
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.Nm dolock
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.Ar lockname
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.Sh DESCRIPTION
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.Nm
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creates a lock named
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.Ar lockname
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using
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.Xr open 2 .
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If the lock is already held, it will display one single wait message on
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stderr, sleep and retry until satisfaction.
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.Pp
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This implements a locking mechanism for ports building, see
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.Sq LOCK INFRASTRUCTURE
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in
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.Xr ports 7
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for details.
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See also
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.Xr dbp 1
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for a complementary lock infrastructure when using dpb.
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