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-rw-r--r--lib/iolog/regress/iolog_timing/check_iolog_timing.c161
1 files changed, 161 insertions, 0 deletions
diff --git a/lib/iolog/regress/iolog_timing/check_iolog_timing.c b/lib/iolog/regress/iolog_timing/check_iolog_timing.c
new file mode 100644
index 0000000..915b604
--- /dev/null
+++ b/lib/iolog/regress/iolog_timing/check_iolog_timing.c
@@ -0,0 +1,161 @@
+/*
+ * SPDX-License-Identifier: ISC
+ *
+ * Copyright (c) 2018 Todd C. Miller <Todd.Miller@sudo.ws>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+#include <unistd.h>
+
+#define SUDO_ERROR_WRAP 0
+
+#include "sudo_compat.h"
+#include "sudo_util.h"
+#include "sudo_fatal.h"
+#include "sudo_iolog.h"
+
+sudo_dso_public int main(int argc, char *argv[]);
+
+static struct parse_delay_test {
+ const char *input;
+ const char *next_field;
+ struct timespec expected_delay;
+} parse_delay_tests[] = {
+ { "10.99999999999 X", "X", { 10, 999999999 } }, /* clamp to nsec */
+ { "10.999999999 X", "X", { 10, 999999999 } }, /* nsec */
+ { "10.999999 X", "X", { 10, 999999000 } }, /* usec -> nsec */
+ { "10.000999999 X", "X", { 10, 999999 } },
+ { "10.9 X", "X", { 10, 900000000 } },
+ { "10.0 X", "X", { 10, 0 } }
+};
+
+/*
+ * Test iolog_parse_delay()
+ */
+static void
+test_parse_delay(int *ntests, int *nerrors)
+{
+ unsigned int i;
+
+ for (i = 0; i < nitems(parse_delay_tests); i++) {
+ struct timespec delay;
+ struct parse_delay_test *test = &parse_delay_tests[i];
+ char *cp = iolog_parse_delay(test->input, &delay, ".");
+ if (cp == NULL) {
+ sudo_warnx("%s:%u failed to parse delay: %s", __func__,
+ i, test->input);
+ (*nerrors)++;
+ continue;
+ }
+ if (strcmp(cp, test->next_field) != 0) {
+ sudo_warnx("%s:%u next field (want \"%s\", got \"%s\"", __func__,
+ i, test->next_field, cp);
+ (*nerrors)++;
+ continue;
+ }
+ if (delay.tv_sec != test->expected_delay.tv_sec) {
+ sudo_warnx("%s:%u wrong seconds (want %lld, got %lld)", __func__,
+ i, (long long)test->expected_delay.tv_sec,
+ (long long)delay.tv_sec);
+ (*nerrors)++;
+ continue;
+ }
+ if (delay.tv_nsec != test->expected_delay.tv_nsec) {
+ sudo_warnx("%s:%u wrong nanoseconds (want %ld, got %ld)", __func__,
+ i, test->expected_delay.tv_nsec, delay.tv_nsec);
+ (*nerrors)++;
+ continue;
+ }
+ }
+ (*ntests) += i;
+}
+
+static struct adjust_delay_test {
+ struct timespec in_delay;
+ struct timespec out_delay;
+ struct timespec max_delay;
+ double scale_factor;
+} adjust_delay_tests[] = {
+ { { 10, 300 }, { 10, 300 }, { 0, 0 }, 1.0 },
+ { { 10, 300 }, { 5, 150 }, { 0, 0 }, 2.0 },
+ { { 5, 300 }, { 2, 500000150 }, { 0, 0 }, 2.0 },
+ { { 0, 1000000 }, { 0, 333333 }, { 0, 0 }, 3 },
+ { { 10, 1000000 }, { 3, 333666666 }, { 0, 0 }, 3 },
+ { { 5, 150 }, { 10, 300 }, { 0, 0 }, 0.5 },
+ { { 5, 500000000 }, { 11, 0 }, { 0, 0 }, 0.5 },
+ { { 5, 150 }, { 5, 0 }, { 5, 0 }, 0.5 }
+};
+
+/*
+ * Test iolog_adjust_delay()
+ */
+static void
+test_adjust_delay(int *ntests, int *nerrors)
+{
+ unsigned int i;
+
+ for (i = 0; i < nitems(adjust_delay_tests); i++) {
+ struct adjust_delay_test *test = &adjust_delay_tests[i];
+
+ iolog_adjust_delay(&test->in_delay,
+ sudo_timespecisset(&test->max_delay) ? &test->max_delay : NULL,
+ test->scale_factor);
+ if (!sudo_timespeccmp(&test->in_delay, &test->out_delay, ==)) {
+ sudo_warnx("%s:%u want {%lld, %ld}, got {%lld, %ld}", __func__, i,
+ (long long)test->out_delay.tv_sec, test->out_delay.tv_nsec,
+ (long long)test->in_delay.tv_sec, test->in_delay.tv_nsec);
+ (*nerrors)++;
+ }
+ }
+ (*ntests) += i;
+}
+
+int
+main(int argc, char *argv[])
+{
+ int ch, ntests = 0, errors = 0;
+
+ initprogname(argc > 0 ? argv[0] : "check_iolog_timing");
+
+ while ((ch = getopt(argc, argv, "v")) != -1) {
+ switch (ch) {
+ case 'v':
+ /* ignore */
+ break;
+ default:
+ fprintf(stderr, "usage: %s [-v]\n", getprogname());
+ return EXIT_FAILURE;
+ }
+ }
+ argc -= optind;
+ argv += optind;
+
+ test_parse_delay(&ntests, &errors);
+
+ test_adjust_delay(&ntests, &errors);
+
+ if (ntests != 0) {
+ printf("iolog_timing: %d test%s run, %d errors, %d%% success rate\n",
+ ntests, ntests == 1 ? "" : "s", errors,
+ (ntests - errors) * 100 / ntests);
+ }
+
+ return errors;
+}