X-Git-Url: http://git.meshlink.io/?a=blobdiff_plain;f=avahi-common%2Ftimeval.h;h=d925719ac3a9d964bb7880f0cfa6be2aa9ca816c;hb=5af9f469d85a9281bc5484e9f5a8740751591dfe;hp=c046a19b852bdb44c9f9a1c6861335749d62af63;hpb=5d047523c87ba11aad8c384f7ffde25b4dd746ed;p=catta diff --git a/avahi-common/timeval.h b/avahi-common/timeval.h index c046a19..d925719 100644 --- a/avahi-common/timeval.h +++ b/avahi-common/timeval.h @@ -22,22 +22,39 @@ USA. ***/ +/** \file timeval.h Functions to facilitate timeval handling */ + #include #include #include +#ifndef DOXYGEN_SHOULD_SKIP_THIS AVAHI_C_DECL_BEGIN +#endif +/** A numeric data type for storing microsecond values. (signed 64bit integer) */ typedef int64_t AvahiUsec; +/** Compare two timeval structures and return a ngeative 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 to 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); -struct timeval *avahi_elapse_time(struct timeval *tv, unsigned msec, unsigned jitter); +/** 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); + +#ifndef DOXYGEN_SHOULD_SKIP_THIS AVAHI_C_DECL_END +#endif #endif