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-rw-r--r--sntp/timing.c112
1 files changed, 0 insertions, 112 deletions
diff --git a/sntp/timing.c b/sntp/timing.c
deleted file mode 100644
index f69cd2b..0000000
--- a/sntp/timing.c
+++ /dev/null
@@ -1,112 +0,0 @@
-/* Copyright (C) 1996 N.M. Maclaren
- Copyright (C) 1996 The University of Cambridge
-
-This includes all of the code needed to handle the time. It assumes rather
-more than is defined by POSIX, unfortunately. Systems that do not have the
-'X/Open' extensions may need changes. */
-
-
-
-#include "header.h"
-
-#include <sys/types.h>
-#include <sys/time.h>
-
-#define TIMING
-#include "kludges.h"
-#undef TIMING
-
-
-
-#define MILLION_L 1000000l /* For conversion to/from timeval */
-#define MILLION_D 1.0e6 /* Must be equal to MILLION_L */
-
-
-
-double current_time (double offset) {
-
-/* Get the current UTC time in seconds since the Epoch plus an offset (usually
-the time from the beginning of the century to the Epoch!) */
-
- struct timeval current;
-
- errno = 0;
- if (gettimeofday(&current,NULL))
- fatal(1,"unable to read current machine/system time",NULL);
- return offset+current.tv_sec+1.0e-6*current.tv_usec;
-}
-
-
-
-time_t convert_time (double value, int *millisecs) {
-
-/* Convert the time to the ANSI C form. */
-
- time_t result = (time_t)value;
-
- if ((*millisecs = (int)(1000.0*(value-result))) >= 1000) {
- *millisecs = 0;
- ++result;
- }
- return result;
-}
-
-
-
-void adjust_time (double difference, int immediate, double ignore) {
-
-/* Adjust the current UTC time. This is portable, even if struct timeval uses
-an unsigned long for tv_sec. */
-
- struct timeval old, new, adjust, previous;
- char text[40];
- long n;
-
-/* Start by converting to timeval format. Note that we have to cater for
-negative, unsigned values. */
-
- if ((n = (long)difference) > difference) --n;
- adjust.tv_sec = n;
- adjust.tv_usec = (long)(MILLION_D*(difference-n));
- errno = 0;
- if (gettimeofday(&old,NULL))
- fatal(1,"unable to read machine/system time",NULL);
- new.tv_sec = old.tv_sec+adjust.tv_sec;
- new.tv_usec = (n = (long)old.tv_usec+(long)adjust.tv_usec);
- if (n < 0) {
- new.tv_usec += MILLION_L;
- --new.tv_sec;
- } else if (n >= MILLION_L) {
- new.tv_usec -= MILLION_L;
- ++new.tv_sec;
- }
-
-/* Now diagnose the situation if necessary, and perform the dirty deed. */
-
- if (verbose > 2)
- fprintf(stderr,
- "Times: old=(%ld,%.6ld) new=(%ld,%.6ld) adjust=(%ld,%.6ld)\n",
- (long)old.tv_sec,(long)old.tv_usec,
- (long)new.tv_sec,(long)new.tv_usec,
- (long)adjust.tv_sec,(long)adjust.tv_usec);
- if (immediate) {
- errno = 0;
- if (settimeofday(&new,NULL))
- fatal(1,"unable to reset current system time",NULL);
- } else {
- previous.tv_sec = 0;
- previous.tv_usec = 0;
- errno = 0;
- if (adjtime(&adjust,&previous))
- fatal(1,"unable to adjust current system time",NULL);
- if (previous.tv_sec != 0 || previous.tv_usec != 0) {
- sprintf(text,"(%ld,%.6ld)",
- (long)previous.tv_sec,(long)previous.tv_usec);
- if (previous.tv_sec+1.0e-6*previous.tv_usec > ignore)
- fatal(0,"outstanding time adjustment %s",text);
- else if (verbose)
- fprintf(stderr,"%s: outstanding time adjustment %s\n",
- argv0,text);
- }
- }
-}
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