timeval: Remove CACHE_TIME scheme.

[sliver-openvswitch.git] / tests / test-timeval.c

diff --git a/tests/test-timeval.c b/tests/test-timeval.c
deleted file mode 100644 (file)
index 9896cf7..0000000
--- a/tests/test-timeval.c
+++ /dev/null
@@ -1,145 +0,0 @@
-/*
- * Copyright (c) 2009, 2010, 2011 Nicira, Inc.
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at:
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-#include <config.h>
-
-#include "timeval.h"
-
-#include <errno.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <sys/time.h>
-#include <sys/types.h>
-#include <unistd.h>
-
-#include "command-line.h"
-#include "daemon.h"
-#include "util.h"
-
-#undef NDEBUG
-#include <assert.h>
-
-static long long int
-gettimeofday_in_msec(void)
-{
-    struct timeval tv;
-
-    xgettimeofday(&tv);
-    return timeval_to_msec(&tv);
-}
-
-static void
-do_test(void)
-{
-    /* Wait until we are awakened by a signal (typically EINTR due to the
-     * setitimer()).  Then ensure that, if time has really advanced by
-     * TIME_UPDATE_INTERVAL, then time_msec() reports that it advanced.
-     */
-    long long int start_time_msec, start_time_wall;
-    long long int start_gtod;
-
-    start_time_msec = time_msec();
-    start_time_wall = time_wall_msec();
-    start_gtod = gettimeofday_in_msec();
-    for (;;) {
-        /* Wait up to 1 second.  Using select() to do the timeout avoids
-         * interfering with the interval timer. */
-        struct timeval timeout;
-        int retval;
-
-        timeout.tv_sec = 1;
-        timeout.tv_usec = 0;
-        retval = select(0, NULL, NULL, NULL, &timeout);
-        if (retval != -1) {
-            ovs_fatal(0, "select returned %d", retval);
-        } else if (errno != EINTR) {
-            ovs_fatal(errno, "select reported unexpected error");
-        }
-
-        if (gettimeofday_in_msec() - start_gtod >= TIME_UPDATE_INTERVAL) {
-            /* gettimeofday() and time_msec() have different granularities in
-             * their time sources.  Depending on the rounding used this could
-             * result in a slight difference, so we allow for 1 ms of slop. */
-            assert(time_msec() - start_time_msec >= TIME_UPDATE_INTERVAL - 1);
-            assert(time_wall_msec() - start_time_wall >=
-                                                      TIME_UPDATE_INTERVAL - 1);
-            break;
-        }
-    }
-}
-
-static void
-usage(void)
-{
-    ovs_fatal(0, "usage: %s TEST, where TEST is \"plain\" or \"daemon\"",
-              program_name);
-}
-
-int
-main(int argc, char *argv[])
-{
-    proctitle_init(argc, argv);
-    set_program_name(argv[0]);
-
-    if (argc != 2) {
-        usage();
-    } else if (!strcmp(argv[1], "plain")) {
-        /* If we're not caching time there isn't much to test and SIGALRM won't
-         * be around to pull us out of the select() call, so just skip out */
-        if (!CACHE_TIME) {
-            exit (77);
-        }
-
-        do_test();
-    } else if (!strcmp(argv[1], "daemon")) {
-        /* Test that time still advances even in a daemon.  This is an
-         * interesting test because fork() cancels the interval timer. */
-        char cwd[1024], *pidfile;
-        FILE *success;
-
-        if (!CACHE_TIME) {
-            exit (77);
-        }
-
-        assert(getcwd(cwd, sizeof cwd) == cwd);
-
-        unlink("test-timeval.success");
-
-        /* Daemonize, with a pidfile in the current directory. */
-        set_detach();
-        pidfile = xasprintf("%s/test-timeval.pid", cwd);
-        set_pidfile(pidfile);
-        free(pidfile);
-        set_no_chdir();
-        daemonize();
-
-        /* Run the test. */
-        do_test();
-
-        /* Report success by writing out a file, since the ultimate invoker of
-         * test-timeval can't wait on the daemonized process. */
-        success = fopen("test-timeval.success", "w");
-        if (!success) {
-            ovs_fatal(errno, "test-timeval.success: create failed");
-        }
-        fprintf(success, "success\n");
-        fclose(success);
-    } else {
-        usage();
-    }
-
-    return 0;
-}