tests/libustctl_function_tests/libustctl_function_tests.c

   1 /* Copyright (C) 2010 Nils Carlson
   2  *
   3  * This library is free software; you can redistribute it and/or
   4  * modify it under the terms of the GNU Lesser General Public
   5  * License as published by the Free Software Foundation; either
   6  * version 2.1 of the License, or (at your option) any later version.
   7  *
   8  * This library is distributed in the hope that it will be useful,
   9  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  10  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  11  * Lesser General Public License for more details.
  12  *
  13  * You should have received a copy of the GNU Lesser General Public
  14  * License along with this library; if not, write to the Free Software
  15  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301 USA
  16  */
  17
  18 /* Simple function tests for ustctl */
  19
  20 #include <stdio.h>
  21 #include <unistd.h>
  22 #include <sys/types.h>
  23 #include <sys/wait.h>
  24
  25 #include <ust/marker.h>
  26 #include <ust/ustctl.h>
  27
  28 #include "tap.h"
  29
  30 static void ustctl_function_tests(pid_t pid)
  31 {
  32         int result;
  33         unsigned int subbuf_size, subbuf_num;
  34         unsigned int new_subbuf_size, new_subbuf_num;
  35         struct marker_status *marker_status, *ms_ptr;
  36         char *old_socket_path, *new_socket_path;
  37         char *tmp_ustd_socket = "/tmp/tmp_ustd_socket";
  38         char *trace = "auto";
  39
  40         printf("Connecting to pid %d\n", pid);
  41
  42         /* marker status array functions */
  43         result = ustctl_get_cmsf(&marker_status, pid);
  44         tap_ok(!result, "ustctl_get_cmsf");
  45
  46         result = 0;
  47         for (ms_ptr = marker_status; ms_ptr->channel; ms_ptr++) {
  48                 if (!strcmp(ms_ptr->channel, "ust") &&
  49                     !strcmp(ms_ptr->marker, "bar")) {
  50                         result = 1;
  51                 }
  52         }
  53         tap_ok(result, "Found channel \"ust\", marker \"bar\"");
  54
  55         tap_ok(!ustctl_free_cmsf(marker_status), "ustctl_free_cmsf");
  56
  57         /* Get and set the socket path */
  58         tap_ok(!ustctl_get_sock_path(&old_socket_path, pid),
  59                "ustctl_get_sock_path");
  60
  61         printf("Socket path: %s\n", old_socket_path);
  62
  63         tap_ok(!ustctl_set_sock_path(tmp_ustd_socket, pid),
  64                "ustctl_set_sock_path - set a new path");
  65
  66         tap_ok(!ustctl_get_sock_path(&new_socket_path, pid),
  67                "ustctl_get_sock_path - get the new path");
  68
  69         tap_ok(!strcmp(new_socket_path, tmp_ustd_socket),
  70                "Compare the set path and the retrieved path");
  71
  72         free(new_socket_path);
  73
  74         tap_ok(!ustctl_set_sock_path(old_socket_path, pid),
  75                "Reset the socket path");
  76
  77         free(old_socket_path);
  78
  79         /* Enable, disable markers */
  80         tap_ok(!ustctl_set_marker_state(trace, "ust", "bar", 1, pid),
  81                "ustctl_set_marker_state - existing marker ust bar");
  82
  83         /* Create and allocate a trace */
  84         tap_ok(!ustctl_create_trace(trace, pid), "ustctl_create_trace");
  85
  86         tap_ok(!ustctl_alloc_trace(trace, pid), "ustctl_alloc_trace");
  87
  88         /* Get subbuf size and number */
  89         subbuf_num = ustctl_get_subbuf_num(trace, "ust", pid);
  90         tap_ok(subbuf_num > 0, "ustctl_get_subbuf_num - %d sub-buffers",
  91                subbuf_num);
  92
  93         subbuf_size = ustctl_get_subbuf_size(trace, "ust", pid);
  94         tap_ok(subbuf_size, "ustctl_get_subbuf_size - sub-buffer size is %d",
  95                subbuf_size);
  96
  97         /* Start the trace */
  98         tap_ok(!ustctl_start_trace(trace, pid), "ustctl_start_trace");
  99
 100
 101         /* Stop the trace and destroy it*/
 102         tap_ok(!ustctl_stop_trace(trace, pid), "ustctl_stop_trace");
 103
 104         tap_ok(!ustctl_destroy_trace(trace, pid), "ustctl_destroy_trace");
 105
 106         /* Create a new trace */
 107         tap_ok(!ustctl_create_trace(trace, pid), "ustctl_create_trace - create a new trace");
 108
 109         printf("Setting new subbufer number and sizes (doubling)\n");
 110         new_subbuf_num = 2 * subbuf_num;
 111         new_subbuf_size = 2 * subbuf_size;
 112
 113         tap_ok(!ustctl_set_subbuf_num(trace, "ust", new_subbuf_num, pid),
 114                "ustctl_set_subbuf_num");
 115
 116         tap_ok(!ustctl_set_subbuf_size(trace, "ust", new_subbuf_size, pid),
 117                "ustctl_set_subbuf_size");
 118
 119
 120         /* Allocate the new trace */
 121         tap_ok(!ustctl_alloc_trace(trace, pid), "ustctl_alloc_trace - allocate the new trace");
 122
 123
 124         /* Get subbuf size and number and compare with what was set */
 125         subbuf_num = ustctl_get_subbuf_num(trace, "ust", pid);
 126
 127         subbuf_size = ustctl_get_subbuf_size(trace, "ust", pid);
 128
 129         tap_ok(subbuf_num == new_subbuf_num, "Set a new subbuf number, %d == %d",
 130                subbuf_num, new_subbuf_num);
 131
 132
 133         result = ustctl_get_subbuf_size(trace, "ust", pid);
 134         tap_ok(subbuf_size == new_subbuf_size, "Set a new subbuf size, %d == %d",
 135                subbuf_size, new_subbuf_size);
 136
 137         tap_ok(!ustctl_destroy_trace(trace, pid), "ustctl_destroy_trace - without ever starting");
 138
 139
 140         printf("##### Tests that definetly should work are completed #####\n");
 141         printf("############## Start expected failure cases ##############\n");
 142
 143         tap_ok(ustctl_set_marker_state(trace, "ust","bar", 1, pid),
 144                "Enable already enabled marker ust/bar");
 145
 146         tap_ok(ustctl_set_marker_state(trace, "ustl", "blar", 1, pid),
 147                "Enable non-existent marker ustl blar");
 148
 149         tap_ok(ustctl_start_trace(trace, pid),
 150                "Start a non-existent trace");
 151
 152         tap_ok(ustctl_destroy_trace(trace, pid),
 153                "Destroy non-existent trace");
 154
 155         exit(tap_status() ? EXIT_FAILURE : EXIT_SUCCESS);
 156
 157 }
 158
 159 int main(int argc, char **argv)
 160 {
 161         int i, status;
 162         pid_t parent_pid, child_pid;
 163
 164         tap_plan(27);
 165
 166         printf("Function tests for ustctl\n");
 167
 168         parent_pid = getpid();
 169         child_pid = fork();
 170         if (child_pid) {
 171                 for(i=0; i<10; i++) {
 172                         trace_mark(ust, bar, "str %s", "FOOBAZ");
 173                         trace_mark(ust, bar2, "number1 %d number2 %d", 53, 9800);
 174                         usleep(100000);
 175                 }
 176
 177                 wait(&status);
 178         } else {
 179                 ustctl_function_tests(parent_pid);
 180         }
 181
 182         exit(status ? EXIT_FAILURE : EXIT_SUCCESS);
 183 }