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Diffstat (limited to 'crypto/heimdal/lib/roken/timeval.c')
-rw-r--r-- | crypto/heimdal/lib/roken/timeval.c | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/crypto/heimdal/lib/roken/timeval.c b/crypto/heimdal/lib/roken/timeval.c new file mode 100644 index 0000000..ea4dee8 --- /dev/null +++ b/crypto/heimdal/lib/roken/timeval.c @@ -0,0 +1,84 @@ +/* + * Copyright (c) 1999 Kungliga Tekniska Högskolan + * (Royal Institute of Technology, Stockholm, Sweden). + * 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. + * + * 3. Neither the name of the Institute 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 INSTITUTE 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 INSTITUTE 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. + */ + +/* + * Timeval stuff + */ + +#ifdef HAVE_CONFIG_H +#include <config.h> +RCSID("$Id: timeval.c,v 1.1 2000/03/03 09:02:42 assar Exp $"); +#endif + +#include "roken.h" + +/* + * Make `t1' consistent. + */ + +void +timevalfix(struct timeval *t1) +{ + if (t1->tv_usec < 0) { + t1->tv_sec--; + t1->tv_usec += 1000000; + } + if (t1->tv_usec >= 1000000) { + t1->tv_sec++; + t1->tv_usec -= 1000000; + } +} + +/* + * t1 += t2 + */ + +void +timevaladd(struct timeval *t1, const struct timeval *t2) +{ + t1->tv_sec += t2->tv_sec; + t1->tv_usec += t2->tv_usec; + timevalfix(t1); +} + +/* + * t1 -= t2 + */ + +void +timevalsub(struct timeval *t1, const struct timeval *t2) +{ + t1->tv_sec -= t2->tv_sec; + t1->tv_usec -= t2->tv_usec; + timevalfix(t1); +} |