X-Git-Url: http://git.efficios.com/?p=lttng-tools.git;a=blobdiff_plain;f=tests%2Fregression%2Fust%2Fgetcpu-override%2Flttng-ust-getcpu-override-test.c;h=c387063110e9f586be5b9d452dbecd24a3daf84c;hp=f098e2cf3a751272a405dda3bb9089aa0e936076;hb=refs%2Fheads%2Fsow-2019-0002-rev1;hpb=568d7e2db7370f57e9612eb9b8c1a6b0bf5213cd diff --git a/tests/regression/ust/getcpu-override/lttng-ust-getcpu-override-test.c b/tests/regression/ust/getcpu-override/lttng-ust-getcpu-override-test.c index f098e2cf3..c38706311 100644 --- a/tests/regression/ust/getcpu-override/lttng-ust-getcpu-override-test.c +++ b/tests/regression/ust/getcpu-override/lttng-ust-getcpu-override-test.c @@ -2,36 +2,23 @@ * lttng-ust-getcpu-override-test.c * Based on lttng-getcpu-override-example.c from LTTng-ust exemple * - * Copyright (c) 2014 Mathieu Desnoyers - * Copyright (c) 2015 Jonathan Rajotte + * Copyright (C) 2014 Mathieu Desnoyers + * Copyright (C) 2015 Jonathan Rajotte * - * Permission is hereby granted, free of charge, to any person obtaining a copy - * of this software and associated documentation files (the "Software"), to deal - * in the Software without restriction, including without limitation the rights - * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell - * copies of the Software, and to permit persons to whom the Software is - * furnished to do so, subject to the following conditions: + * SPDX-License-Identifier: MIT * - * The above copyright notice and this permission notice shall be included in - * all copies or substantial portions of the Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE - * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER - * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, - * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE - * SOFTWARE. */ #include -#include +#include #include #include #include #include -int plugin_getcpu(void) +static long nprocessors; + +static int plugin_getcpu(void) { /* Generate a sequence based on the number of configurated processor * by using sequence[i] % nb_configured_processors. Where sequence @@ -42,35 +29,45 @@ int plugin_getcpu(void) * plugin but provide a strong argument of it's validity. */ static int i = 0; - static int seq_seed[256] = {100, 57, 232, 236, 42, 193, 224, 184, 216, 150, - 92, 91, 108, 118, 55, 243, 65, 101, 209, 0, 147, 36, 29, 34, 49, 188, - 174, 105, 253, 245, 227, 238, 112, 20, 222, 201, 102, 175, 119, 19, 132, - 41, 78, 90, 114, 64, 138, 14, 48, 18, 162, 85, 204, 124, 133, 73, 172, - 106, 241, 126, 28, 104, 111, 21, 127, 219, 9, 244, 237, 189, 59, 214, - 52, 141, 107, 26, 25, 199, 3, 157, 117, 234, 33, 44, 46, 84, 69, 155, - 122, 250, 231, 86, 239, 76, 190, 120, 1, 94, 206, 8, 148, 159, 167, 215, - 164, 31, 217, 61, 71, 125, 68, 109, 195, 177, 95, 82, 142, 182, 129, 87, - 37, 140, 134, 186, 173, 39, 116, 143, 254, 229, 131, 67, 121, 192, 240, - 15, 221, 30, 242, 185, 80, 170, 135, 51, 187, 194, 246, 12, 225, 181, - 137, 211, 228, 88, 218, 27, 233, 161, 77, 252, 123, 93, 220, 248, 205, - 223, 144, 128, 196, 70, 247, 210, 178, 203, 154, 24, 169, 149, 163, 35, - 7, 151, 103, 197, 139, 165, 158, 207, 72, 113, 145, 45, 183, 11, 198, - 43, 81, 230, 97, 96, 2, 66, 213, 146, 179, 22, 58, 54, 38, 160, 200, - 235, 226, 156, 56, 208, 249, 32, 176, 168, 110, 191, 79, 152, 115, 10, - 74, 60, 251, 17, 83, 180, 171, 202, 40, 166, 255, 53, 212, 98, 5, 50, - 99, 4, 89, 13, 63, 6, 136, 153, 23, 16, 47, 130, 75, 62}; - + static int seq_seed[256] = { 100, 57, 232, 236, 42, 193, 224, 184, 216, + 150, 92, 91, 108, 118, 55, 243, 65, 101, 209, 0, 147, 36, 29, + 34, 49, 188, 174, 105, 253, 245, 227, 238, 112, 20, 222, 201, + 102, 175, 119, 19, 132, 41, 78, 90, 114, 64, 138, 14, 48, 18, + 162, 85, 204, 124, 133, 73, 172, 106, 241, 126, 28, 104, 111, + 21, 127, 219, 9, 244, 237, 189, 59, 214, 52, 141, 107, 26, 25, + 199, 3, 157, 117, 234, 33, 44, 46, 84, 69, 155, 122, 250, 231, + 86, 239, 76, 190, 120, 1, 94, 206, 8, 148, 159, 167, 215, 164, + 31, 217, 61, 71, 125, 68, 109, 195, 177, 95, 82, 142, 182, 129, + 87, 37, 140, 134, 186, 173, 39, 116, 143, 254, 229, 131, 67, + 121, 192, 240, 15, 221, 30, 242, 185, 80, 170, 135, 51, 187, + 194, 246, 12, 225, 181, 137, 211, 228, 88, 218, 27, 233, 161, + 77, 252, 123, 93, 220, 248, 205, 223, 144, 128, 196, 70, 247, + 210, 178, 203, 154, 24, 169, 149, 163, 35, 7, 151, 103, 197, + 139, 165, 158, 207, 72, 113, 145, 45, 183, 11, 198, 43, 81, 230, + 97, 96, 2, 66, 213, 146, 179, 22, 58, 54, 38, 160, 200, 235, + 226, 156, 56, 208, 249, 32, 176, 168, 110, 191, 79, 152, 115, + 10, 74, 60, 251, 17, 83, 180, 171, 202, 40, 166, 255, 53, 212, + 98, 5, 50, 99, 4, 89, 13, 63, 6, 136, 153, 23, 16, 47, 130, 75, + 62 }; int ret; - ret = seq_seed[i] % sysconf(_SC_NPROCESSORS_CONF); + + ret = seq_seed[i] % nprocessors; i++; i = i % 256; return ret; } +void lttng_ust_getcpu_plugin_init(void); void lttng_ust_getcpu_plugin_init(void) { int ret; + nprocessors = sysconf(_SC_NPROCESSORS_CONF); + if (nprocessors < 0) { + perror("Failed to get _SC_NPROCESSORS_CONF"); + goto error; + } + ret = lttng_ust_getcpu_override(plugin_getcpu); if (ret) { fprintf(stderr, "Error enabling getcpu override: %s\n",