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- #ifndef footimevalhfoo
- #define footimevalhfoo
- /***
- This file is part of avahi.
- avahi is free software; you can redistribute it and/or modify it
- under the terms of the GNU Lesser General Public License as
- published by the Free Software Foundation; either version 2.1 of the
- License, or (at your option) any later version.
- avahi is distributed in the hope that it will be useful, but WITHOUT
- ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
- or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General
- Public License for more details.
- You should have received a copy of the GNU Lesser General Public
- License along with avahi; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
- USA.
- ***/
- /** \file timeval.h Functions to facilitate timeval handling */
- #include <inttypes.h>
- #include <sys/time.h>
- #include <avahi-common/cdecl.h>
- AVAHI_C_DECL_BEGIN
- /** A numeric data type for storing microsecond values. (signed 64bit integer) */
- typedef int64_t AvahiUsec;
- /** Compare two timeval structures and return a negative value when a < b, 0 when a == b and a positive value otherwise */
- int avahi_timeval_compare(const struct timeval *a, const struct timeval *b);
- /** Calculate the difference between two timeval structures as microsecond value */
- AvahiUsec avahi_timeval_diff(const struct timeval *a, const struct timeval *b);
- /** Add a number of microseconds to the specified timeval structure and return it. *a is modified. */
- struct timeval* avahi_timeval_add(struct timeval *a, AvahiUsec usec);
- /** Return the difference between the current time and *a. Positive if *a was earlier */
- AvahiUsec avahi_age(const struct timeval *a);
- /** Fill *tv with the current time plus "ms" milliseconds plus an
- * extra jitter of "j" milliseconds. Pass 0 for j if you don't want
- * the jitter */
- struct timeval *avahi_elapse_time(struct timeval *tv, unsigned ms, unsigned j);
- AVAHI_C_DECL_END
- #endif
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