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67 lines
1.3 KiB
67 lines
1.3 KiB
3 years ago
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/*-
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* See the file LICENSE for redistribution information.
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*
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* Copyright (c) 1997, 1998, 1999
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* Sleepycat Software. All rights reserved.
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*/
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#include "db_config.h"
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#ifndef lint
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static const char sccsid[] = "@(#)os_sleep.c 11.1 (Sleepycat) 7/25/99";
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#endif /* not lint */
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#ifndef NO_SYSTEM_INCLUDES
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#include <sys/types.h>
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#ifdef HAVE_SYS_SELECT_H
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#include <sys/select.h>
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#endif
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#if TIME_WITH_SYS_TIME
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#include <sys/time.h>
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#include <time.h>
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#else
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#if HAVE_SYS_TIME_H
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#include <sys/time.h>
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#else
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#include <time.h>
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#endif
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#endif
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#ifndef _MSC_VER /* _WIN32 */
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#include <unistd.h>
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#endif
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#endif
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#include "db_int.h"
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#include "os_jump.h"
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/*
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* CDB___os_sleep --
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* Yield the processor for a period of time.
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*
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* PUBLIC: int CDB___os_sleep __P((u_long, u_long));
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*/
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int
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CDB___os_sleep(secs, usecs)
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u_long secs, usecs; /* Seconds and microseconds. */
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{
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struct timeval t;
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/* Don't require that the values be normalized. */
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for (; usecs >= 1000000; usecs -= 1000000)
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++secs;
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if (CDB___db_jump.j_sleep != NULL)
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return (CDB___db_jump.j_sleep(secs, usecs));
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/*
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* It's important that we yield the processor here so that other
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* processes or threads are permitted to run.
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*/
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t.tv_sec = secs;
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t.tv_usec = usecs;
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return (select(0, NULL, NULL, NULL, &t) == -1 ? CDB___os_get_errno() : 0);
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}
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