diff options
author | Jesse Morgan <jesse@jesterpm.net> | 2016-12-17 21:28:53 -0800 |
---|---|---|
committer | Jesse Morgan <jesse@jesterpm.net> | 2016-12-17 21:28:53 -0800 |
commit | 54df2afaa61c6a03cbb4a33c9b90fa572b6d07b8 (patch) | |
tree | 18147b92b969d25ffbe61935fb63035cac820dd0 /db-4.8.30/dbinc/clock.h |
Berkeley DB 4.8 with rust build script for linux.
Diffstat (limited to 'db-4.8.30/dbinc/clock.h')
-rw-r--r-- | db-4.8.30/dbinc/clock.h | 127 |
1 files changed, 127 insertions, 0 deletions
diff --git a/db-4.8.30/dbinc/clock.h b/db-4.8.30/dbinc/clock.h new file mode 100644 index 0000000..0ed4350 --- /dev/null +++ b/db-4.8.30/dbinc/clock.h @@ -0,0 +1,127 @@ +/*- + * See the file LICENSE for redistribution information. + * + * Copyright (c) 2005-2009 Oracle. All rights reserved. + * + * $Id$ + */ +/* + * Copyright (c) 1982, 1986, 1993 + * The Regents of the University of California. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in the + * documentation and/or other materials provided with the distribution. + * 4. Neither the name of the University nor the names of its contributors + * may be used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND + * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE + * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE + * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE + * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL + * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS + * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) + * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY + * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF + * SUCH DAMAGE. + * + * @(#)time.h 8.5 (Berkeley) 5/4/95 + * FreeBSD: src/sys/sys/time.h,v 1.65 2004/04/07 04:19:49 imp Exp + */ + +#ifndef _DB_CLOCK_H_ +#define _DB_CLOCK_H_ + +#if defined(__cplusplus) +extern "C" { +#endif + +/* + * This declaration is POSIX-compatible. Because there are lots of different + * time.h include file patterns out there, it's easier to declare our own name + * in all cases than to try and discover if a system has a struct timespec. + * For the same reason, and because we'd have to #include <sys/time.h> in db.h, + * we don't export any timespec structures in the DB API, even in places where + * it would make sense, like the replication statistics information. + */ +typedef struct { + time_t tv_sec; /* seconds */ + long tv_nsec; /* nanoseconds */ +} db_timespec; + +/* Operations on timespecs */ +#undef timespecclear +#define timespecclear(tvp) ((tvp)->tv_sec = (tvp)->tv_nsec = 0) +#undef timespecisset +#define timespecisset(tvp) ((tvp)->tv_sec || (tvp)->tv_nsec) +#undef timespeccmp +#define timespeccmp(tvp, uvp, cmp) \ + (((tvp)->tv_sec == (uvp)->tv_sec) ? \ + ((tvp)->tv_nsec cmp (uvp)->tv_nsec) : \ + ((tvp)->tv_sec cmp (uvp)->tv_sec)) +#undef timespecadd +/* + * Note that using timespecadd to add to yourself (i.e. doubling) + * must be supported. + */ +#define timespecadd(vvp, uvp) \ + do { \ + (vvp)->tv_sec += (uvp)->tv_sec; \ + (vvp)->tv_nsec += (uvp)->tv_nsec; \ + if ((vvp)->tv_nsec >= 1000000000) { \ + (vvp)->tv_sec++; \ + (vvp)->tv_nsec -= 1000000000; \ + } \ + } while (0) +#undef timespecsub +#define timespecsub(vvp, uvp) \ + do { \ + (vvp)->tv_sec -= (uvp)->tv_sec; \ + (vvp)->tv_nsec -= (uvp)->tv_nsec; \ + if ((vvp)->tv_nsec < 0) { \ + (vvp)->tv_sec--; \ + (vvp)->tv_nsec += 1000000000; \ + } \ + } while (0) + +#undef timespecset +#define timespecset(vvp, sec, nsec) \ + do { \ + (vvp)->tv_sec = (time_t)(sec); \ + (vvp)->tv_nsec = (long)(nsec); \ + } while (0) + +#define DB_TIMEOUT_TO_TIMESPEC(t, vvp) \ + do { \ + (vvp)->tv_sec = (time_t)((t) / 1000000); \ + (vvp)->tv_nsec = (long)(((t) % 1000000) * 1000); \ + } while (0) + +#define DB_TIMESPEC_TO_TIMEOUT(t, vvp, prec) \ + do { \ + t = (u_long)((vvp)->tv_sec * 1000000); \ + t += (u_long)((vvp)->tv_nsec / 1000); \ + /* Add in 1 usec for lost nsec precision if wanted. */ \ + if (prec) \ + t++; \ + } while (0) + +#define TIMESPEC_ADD_DB_TIMEOUT(vvp, t) \ + do { \ + db_timespec __tmp; \ + DB_TIMEOUT_TO_TIMESPEC(t, &__tmp); \ + timespecadd((vvp), &__tmp); \ + } while (0) + +#if defined(__cplusplus) +} +#endif +#endif /* !_DB_CLOCK_H_ */ |