Revert "Add clock_gettime in contrib."

This reverts commit fb67eea6594bf9214e179ecc0c273e0fecb5bfda.

Whoops.  I accidently pushed some work in progress with clock_gettime.

1 files changed, 0 insertions, 110 deletions

diff --git a/contrib/clock_test.c b/contrib/clock_test.c
deleted file mode 100644
index 904c9678..00000000
--- a/contrib/clock_test.c
+++ /dev/null
@@ -1,110 +0,0 @@
-/*
- * clock_test.  A simple program to test the latency of the clock_gettime() call
- *
- * Compile: gcc clock_test.c -lm -o clock_test
- *
- */
-
-#include <getopt.h>             /* for getopt() */
-#include <limits.h>             /* for LONG_MAX */
-#include <math.h>               /* for pow(), sqrt() */
-#include <stdio.h>              /* for printf() */
-#include <stdlib.h>             /* for qsort() */
-#include <time.h>               /* for time_t */
-
-#define NUM_TESTS 101           /* default samples, make it odd for a clean median */
-#define DELAY 10000000          /* default delay between samples in ns, 10 ms is good */
-
-int compare_long( const void *ap, const void *bp)
-{
-        long a = *((long *)ap);
-        long b = *((long *)bp);
-	if ( a < b ) return -1;
-	if ( a > b ) return 1;
-        return 0;
-}
-
-int main(int argc, char **argv)
-{
-    int i;
-    int opt;                   /* for getopts() */
-    int verbose = 0;
-    int samples = NUM_TESTS;
-    long delay = DELAY;
-    long *diffs = NULL;
-    long min = LONG_MAX, max = 0, sum = 0, mean = 0, median = 0;
-    double stddev = 0.0;
-    
-    while ((opt = getopt(argc, argv, "d:hvn:")) != -1) {
-        switch (opt) {
-        case 'd':
-	    delay = atol(optarg);
-	    break;
-        case 'n':
-	    samples = atoi(optarg);
-            /* make odd, for a good median */
-            if ( (samples & 1) == 0) {
-                samples += 1;
-            }
-	    break;
-        case 'v':
-	    verbose = 1;
-	    break;
-        case 'h':
-            /* fall through */
-        default: /* '?' */
-	    fprintf(stderr, "Usage: %s [-h] [-d nsec] [-n samples] [-v]\n\n", argv[0]);
-	    fprintf(stderr, "-d nsec     : nano seconde paus between samples\n");
-	    fprintf(stderr, "-h          : help\n");
-	    fprintf(stderr, "-n samples  : Number of samples, default %d\n", NUM_TESTS);
-	    fprintf(stderr, "-v          : verbose\n");
-	    exit(EXIT_FAILURE);
-        }
-    }
-
-    diffs = alloca( sizeof(long) * (samples + 2));  /* add 2 for off by one errors */
-
-    /* collect test data */
-    for ( i = 0 ; i < samples; i++ ) {
-	struct timespec now, now1, sleep, sleep1;
-
-	(void)clock_gettime(CLOCK_REALTIME, &now);
-	(void)clock_gettime(CLOCK_REALTIME, &now1);
-	diffs[i] = now1.tv_nsec - now.tv_nsec;
-        if ( now1.tv_sec != now.tv_sec ) {
-            /* clock roll over, fix it */
-            diffs[i] += 1000000000;  /* add one second */
-        }
-        /* instead of hammering, sleep between tests, let the cache get cold */
-        sleep.tv_sec = 0;
-        sleep.tv_nsec = delay;    /* sleep delay */
-        /* sleep1 unused, should not be returning early */
-        nanosleep(&sleep, &sleep1);
-    }
-
-    /* analyze test data */
-
-    /* print diffs, calculate min and max */
-    for ( i = 0 ; i < samples; i++ ) {
-        if ( verbose > 0 ) {
-	    printf("diff %ld\n", diffs[i]);
-        }
-        sum += diffs[i];
-        if ( diffs[i] < min ) min = diffs[i];
-        if ( diffs[i] > max ) max = diffs[i];
-    }
-    mean = sum / (samples - 1);
-
-    qsort( diffs, samples, sizeof(long), compare_long);
-    median = diffs[(samples / 2) + 1];
-
-
-    for ( i = 0 ; i < samples; i++ ) {
-        stddev += pow(diffs[i] - mean, 2);
-    }
-    stddev = sqrt(stddev/samples);
-
-    printf("samples %d, delay %ld ns\n", samples, delay);
-    printf("min %ld ns, max %ld ns, mean %ld ns, median %ld ns, StdDev %ld ns\n",
-           min, max, mean, median, (long)stddev);
-}