* lttng-ust-getcpu-override-test.c
* Based on lttng-getcpu-override-example.c from LTTng-ust exemple
*
- * Copyright (c) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
- * Copyright (c) 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
+ * Copyright (C) 2014 Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
+ * Copyright (C) 2015 Jonathan Rajotte <jonathan.rajotte-julien@efficios.com>
*
- * 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 <stdlib.h>
-#include <time.h>
+#include <common/compat/time.hpp>
#include <string.h>
#include <stdio.h>
#include <unistd.h>
+#include <lttng/lttng-export.h>
#include <lttng/ust-getcpu.h>
+static long nprocessors;
+
+static
int plugin_getcpu(void)
{
/* Generate a sequence based on the number of configurated processor
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;
}
+LTTNG_EXPORT 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",