| 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 | #include <errno.h> |
| 25 | #include <string.h> |
| 26 | |
| 27 | #include <ust/marker.h> |
| 28 | #include <ust/ustctl.h> |
| 29 | |
| 30 | #include "tap.h" |
| 31 | |
| 32 | static void ustctl_function_tests(pid_t pid) |
| 33 | { |
| 34 | int result, sock; |
| 35 | unsigned int subbuf_size, subbuf_num; |
| 36 | unsigned int new_subbuf_size, new_subbuf_num; |
| 37 | struct ust_marker_status *marker_status, *ms_ptr; |
| 38 | char *old_socket_path, *new_socket_path; |
| 39 | char *tmp_ustd_socket = "/tmp/tmp_ustd_socket"; |
| 40 | char *trace = "auto"; |
| 41 | |
| 42 | printf("Connecting to pid %d\n", pid); |
| 43 | |
| 44 | sock = ustctl_connect_pid(pid); |
| 45 | tap_ok(sock > 0, "ustctl_connect_pid"); |
| 46 | |
| 47 | /* marker status array functions */ |
| 48 | result = ustctl_get_cmsf(sock, &marker_status); |
| 49 | tap_ok(!result, "ustctl_get_cmsf"); |
| 50 | |
| 51 | result = 0; |
| 52 | for (ms_ptr = marker_status; ms_ptr->channel; ms_ptr++) { |
| 53 | if (!strcmp(ms_ptr->channel, "ust") && |
| 54 | !strcmp(ms_ptr->ust_marker, "bar")) { |
| 55 | result = 1; |
| 56 | } |
| 57 | } |
| 58 | tap_ok(result, "Found channel \"ust\", marker \"bar\""); |
| 59 | |
| 60 | tap_ok(!ustctl_free_cmsf(marker_status), "ustctl_free_cmsf"); |
| 61 | |
| 62 | /* Get and set the socket path */ |
| 63 | tap_ok(!ustctl_get_sock_path(sock, &old_socket_path), |
| 64 | "ustctl_get_sock_path"); |
| 65 | |
| 66 | printf("Socket path: %s\n", old_socket_path); |
| 67 | |
| 68 | tap_ok(!ustctl_set_sock_path(sock, tmp_ustd_socket), |
| 69 | "ustctl_set_sock_path - set a new path"); |
| 70 | |
| 71 | tap_ok(!ustctl_get_sock_path(sock, &new_socket_path), |
| 72 | "ustctl_get_sock_path - get the new path"); |
| 73 | |
| 74 | tap_ok(!strcmp(new_socket_path, tmp_ustd_socket), |
| 75 | "Compare the set path and the retrieved path"); |
| 76 | |
| 77 | free(new_socket_path); |
| 78 | |
| 79 | tap_ok(!ustctl_set_sock_path(sock, old_socket_path), |
| 80 | "Reset the socket path"); |
| 81 | |
| 82 | free(old_socket_path); |
| 83 | |
| 84 | /* Enable, disable markers */ |
| 85 | tap_ok(!ustctl_set_ust_marker_state(sock, trace, "ust", "bar", 1), |
| 86 | "ustctl_set_ust_marker_state - existing marker ust bar"); |
| 87 | |
| 88 | /* Create and allocate a trace */ |
| 89 | tap_ok(!ustctl_create_trace(sock, trace), "ustctl_create_trace"); |
| 90 | |
| 91 | tap_ok(!ustctl_alloc_trace(sock, trace), "ustctl_alloc_trace"); |
| 92 | |
| 93 | /* Get subbuf size and number */ |
| 94 | subbuf_num = ustctl_get_subbuf_num(sock, trace, "ust"); |
| 95 | tap_ok(subbuf_num > 0, "ustctl_get_subbuf_num - %d sub-buffers", |
| 96 | subbuf_num); |
| 97 | |
| 98 | subbuf_size = ustctl_get_subbuf_size(sock, trace, "ust"); |
| 99 | tap_ok(subbuf_size, "ustctl_get_subbuf_size - sub-buffer size is %d", |
| 100 | subbuf_size); |
| 101 | |
| 102 | /* Start the trace */ |
| 103 | tap_ok(!ustctl_start_trace(sock, trace), "ustctl_start_trace"); |
| 104 | |
| 105 | |
| 106 | /* Stop the trace and destroy it*/ |
| 107 | tap_ok(!ustctl_stop_trace(sock, trace), "ustctl_stop_trace"); |
| 108 | |
| 109 | tap_ok(!ustctl_destroy_trace(sock, trace), "ustctl_destroy_trace"); |
| 110 | |
| 111 | /* Create a new trace */ |
| 112 | tap_ok(!ustctl_create_trace(sock, trace), "ustctl_create_trace - create a new trace"); |
| 113 | |
| 114 | printf("Setting new subbufer number and sizes (doubling)\n"); |
| 115 | new_subbuf_num = 2 * subbuf_num; |
| 116 | new_subbuf_size = 2 * subbuf_size; |
| 117 | |
| 118 | tap_ok(!ustctl_set_subbuf_num(sock, trace, "ust", new_subbuf_num), |
| 119 | "ustctl_set_subbuf_num"); |
| 120 | |
| 121 | tap_ok(!ustctl_set_subbuf_size(sock, trace, "ust", new_subbuf_size), |
| 122 | "ustctl_set_subbuf_size"); |
| 123 | |
| 124 | |
| 125 | /* Allocate the new trace */ |
| 126 | tap_ok(!ustctl_alloc_trace(sock, trace), "ustctl_alloc_trace - allocate the new trace"); |
| 127 | |
| 128 | |
| 129 | /* Get subbuf size and number and compare with what was set */ |
| 130 | subbuf_num = ustctl_get_subbuf_num(sock, trace, "ust"); |
| 131 | |
| 132 | subbuf_size = ustctl_get_subbuf_size(sock, trace, "ust"); |
| 133 | |
| 134 | tap_ok(subbuf_num == new_subbuf_num, "Set a new subbuf number, %d == %d", |
| 135 | subbuf_num, new_subbuf_num); |
| 136 | |
| 137 | |
| 138 | result = ustctl_get_subbuf_size(sock, trace, "ust"); |
| 139 | tap_ok(subbuf_size == new_subbuf_size, "Set a new subbuf size, %d == %d", |
| 140 | subbuf_size, new_subbuf_size); |
| 141 | |
| 142 | tap_ok(!ustctl_destroy_trace(sock, trace), "ustctl_destroy_trace - without ever starting"); |
| 143 | |
| 144 | /* |
| 145 | * Activate a non-existent marker, this should be possible as the marker |
| 146 | * can be loaded at a later time. |
| 147 | */ |
| 148 | tap_ok(ustctl_set_ust_marker_state(sock, trace, "ustl", "blar", 1) == 0, |
| 149 | "Enable non-existent marker ustl blar"); |
| 150 | |
| 151 | printf("##### Tests that definetly should work are completed #####\n"); |
| 152 | printf("############## Start expected failure cases ##############\n"); |
| 153 | |
| 154 | tap_ok(ustctl_set_ust_marker_state(sock, trace, "ust","bar", 1), |
| 155 | "Enable already enabled marker ust/bar"); |
| 156 | |
| 157 | tap_ok(EEXIST == errno, |
| 158 | "Right error code for enabling an already enabled marker"); |
| 159 | |
| 160 | tap_ok(ustctl_start_trace(sock, trace), |
| 161 | "Start a non-existent trace"); |
| 162 | |
| 163 | tap_ok(ustctl_destroy_trace(sock, trace), |
| 164 | "Destroy non-existent trace"); |
| 165 | |
| 166 | exit(tap_status() ? EXIT_FAILURE : EXIT_SUCCESS); |
| 167 | |
| 168 | } |
| 169 | |
| 170 | int main(int argc, char **argv) |
| 171 | { |
| 172 | int i, status; |
| 173 | pid_t parent_pid, child_pid; |
| 174 | |
| 175 | tap_plan(29); |
| 176 | |
| 177 | printf("Function tests for ustctl\n"); |
| 178 | |
| 179 | parent_pid = getpid(); |
| 180 | child_pid = fork(); |
| 181 | if (child_pid) { |
| 182 | for(i=0; i<10; i++) { |
| 183 | ust_marker(bar, "str %s", "FOOBAZ"); |
| 184 | ust_marker(bar2, "number1 %d number2 %d", 53, 9800); |
| 185 | usleep(100000); |
| 186 | } |
| 187 | |
| 188 | wait(&status); |
| 189 | } else { |
| 190 | ustctl_function_tests(parent_pid); |
| 191 | } |
| 192 | |
| 193 | exit(status ? EXIT_FAILURE : EXIT_SUCCESS); |
| 194 | } |