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move timeval-diff function into utils.h from app_alarmreceiver.c

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git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@5882 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Kevin P. Fleming
2005-06-09 14:39:34 +00:00
parent f70c5e190b
commit e18a747172
2 changed files with 14 additions and 15 deletions
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13
include/asterisk/utils.h
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@@ -247,4 +247,17 @@ void ast_copy_string(char *dst, const char *src, size_t size);
*/
int ast_build_string(char **buffer, size_t *space, const char *fmt, ...) __attribute__ ((format (printf, 3, 4)));
/* functions for working with 'struct timeval' instances */
/*!
* \brief Computes the difference (in milliseconds) between two \c struct \c timeval instances.
* \param start the beginning of the time period
* \param end the end of the time period
* \return the difference in milliseconds
*/
static inline int ast_tvdiff_ms(struct timeval *start, struct timeval *end)
{
return ((end->tv_sec - start->tv_sec) * 1000) + ((end->tv_usec - start->tv_usec) / 1000);
}
#endif /* _ASTERISK_UTILS_H */