2 * Copyright (C) 2004 Internet Systems Consortium, Inc. ("ISC")
3 * Copyright (C) 1998-2001 Internet Software Consortium.
5 * Permission to use, copy, modify, and distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
9 * THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
10 * REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
11 * AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
12 * INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
13 * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
14 * OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
15 * PERFORMANCE OF THIS SOFTWARE.
18 /* $Id: condition.c,v 1.30.2.2 2004/03/09 06:12:06 marka Exp $ */
24 #include <isc/condition.h>
26 #include <isc/strerror.h>
27 #include <isc/string.h>
32 isc_condition_waituntil(isc_condition_t
*c
, isc_mutex_t
*m
, isc_time_t
*t
) {
36 char strbuf
[ISC_STRERRORSIZE
];
38 REQUIRE(c
!= NULL
&& m
!= NULL
&& t
!= NULL
);
41 * POSIX defines a timespec's tv_sec as time_t.
43 result
= isc_time_secondsastimet(t
, &ts
.tv_sec
);
44 if (result
!= ISC_R_SUCCESS
)
48 * POSIX defines a timespec's tv_nsec as long. isc_time_nanoseconds
49 * ensures its return value is < 1 billion, which will fit in a long.
51 ts
.tv_nsec
= (long)isc_time_nanoseconds(t
);
55 presult
= pthread_cond_timedwait(c
, &m
->mutex
, &ts
);
57 presult
= pthread_cond_timedwait(c
, m
, &ts
);
60 return (ISC_R_SUCCESS
);
61 if (presult
== ETIMEDOUT
)
62 return (ISC_R_TIMEDOUT
);
63 } while (presult
== EINTR
);
65 isc__strerror(presult
, strbuf
, sizeof(strbuf
));
66 UNEXPECTED_ERROR(__FILE__
, __LINE__
,
67 "pthread_cond_timedwait() %s %s",
68 isc_msgcat_get(isc_msgcat
, ISC_MSGSET_GENERAL
,
69 ISC_MSG_RETURNED
, "returned"),
71 return (ISC_R_UNEXPECTED
);