Fix tests: use of uninitialized variables

[userspace-rcu.git] / tests / test_rwlock_timing.c

diff --git a/tests/test_rwlock_timing.c b/tests/test_rwlock_timing.c
index 869017ea9a1d0dc8a250d3a88de47d7d86ec02d4..69a8850fafa48b1d7ed80c525f4ae11b86bf0cfc 100644 (file)
--- a/tests/test_rwlock_timing.c
+++ b/tests/test_rwlock_timing.c
@@ -3,7 +3,7 @@
  *
  * Userspace RCU library - test program
  *
- * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
+ * Copyright February 2009 - Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
@@ -20,6 +20,7 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#define _GNU_SOURCE
 #include <stdio.h>
 #include <pthread.h>
 #include <stdlib.h>
@@ -29,12 +30,15 @@
 #include <unistd.h>
 #include <stdio.h>
 #include <assert.h>
-#include <sys/syscall.h>
 #include <pthread.h>
 #include <errno.h>
 
 #include <urcu/arch.h>
 
+#ifdef __linux__
+#include <syscall.h>
+#endif
+
 #if defined(_syscall0)
 _syscall0(pid_t, gettid)
 #elif defined(__NR_gettid)
@@ -74,8 +78,8 @@ static int num_write;
 #define NR_READ num_read
 #define NR_WRITE num_write
 
-static cycles_t __attribute__((aligned(CACHE_LINE_SIZE))) *reader_time;
-static cycles_t __attribute__((aligned(CACHE_LINE_SIZE))) *writer_time;
+static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *reader_time;
+static cycles_t __attribute__((aligned(CAA_CACHE_LINE_SIZE))) *writer_time;
 
 void *thr_reader(void *arg)
 {
@@ -83,10 +87,11 @@ void *thr_reader(void *arg)
        cycles_t time1, time2;
 
        printf("thread_begin %s, thread id : %lx, tid %lu\n",
-                       "reader", pthread_self(), (unsigned long)gettid());
+                       "reader", (unsigned long) pthread_self(),
+                       (unsigned long) gettid());
        sleep(2);
 
-       time1 = get_cycles();
+       time1 = caa_get_cycles();
        for (i = 0; i < OUTER_READ_LOOP; i++) {
                for (j = 0; j < INNER_READ_LOOP; j++) {
                        pthread_rwlock_rdlock(&lock);
@@ -94,13 +99,14 @@ void *thr_reader(void *arg)
                        pthread_rwlock_unlock(&lock);
                }
        }
-       time2 = get_cycles();
+       time2 = caa_get_cycles();
 
        reader_time[(unsigned long)arg] = time2 - time1;
 
        sleep(2);
        printf("thread_end %s, thread id : %lx, tid %lu\n",
-                       "reader", pthread_self(), (unsigned long)gettid());
+                       "reader", (unsigned long) pthread_self(),
+                       (unsigned long) gettid());
        return ((void*)1);
 
 }
@@ -111,23 +117,25 @@ void *thr_writer(void *arg)
        cycles_t time1, time2;
 
        printf("thread_begin %s, thread id : %lx, tid %lu\n",
-                       "writer", pthread_self(), (unsigned long)gettid());
+                       "writer", (unsigned long) pthread_self(),
+                       (unsigned long) gettid());
        sleep(2);
 
        for (i = 0; i < OUTER_WRITE_LOOP; i++) {
                for (j = 0; j < INNER_WRITE_LOOP; j++) {
-                       time1 = get_cycles();
+                       time1 = caa_get_cycles();
                        pthread_rwlock_wrlock(&lock);
                        test_array.a = 8;
                        pthread_rwlock_unlock(&lock);
-                       time2 = get_cycles();
+                       time2 = caa_get_cycles();
                        writer_time[(unsigned long)arg] += time2 - time1;
                        usleep(1);
                }
        }
 
        printf("thread_end %s, thread id : %lx, tid %lu\n",
-                       "writer", pthread_self(), (unsigned long)gettid());
+                       "writer", (unsigned long) pthread_self(),
+                       (unsigned long) gettid());
        return ((void*)2);
 }
 
@@ -147,13 +155,14 @@ int main(int argc, char **argv)
        num_read = atoi(argv[1]);
        num_write = atoi(argv[2]);
 
-       reader_time = malloc(sizeof(*reader_time) * num_read);
-       writer_time = malloc(sizeof(*writer_time) * num_write);
-       tid_reader = malloc(sizeof(*tid_reader) * num_read);
-       tid_writer = malloc(sizeof(*tid_writer) * num_write);
+       reader_time = calloc(num_read, sizeof(*reader_time));
+       writer_time = calloc(num_write, sizeof(*writer_time));
+       tid_reader = calloc(num_read, sizeof(*tid_reader));
+       tid_writer = calloc(num_write, sizeof(*tid_writer));
 
        printf("thread %-6s, thread id : %lx, tid %lu\n",
-                       "main", pthread_self(), (unsigned long)gettid());
+                       "main", (unsigned long) pthread_self(),
+                       (unsigned long) gettid());
 
        for (i = 0; i < NR_READ; i++) {
                err = pthread_create(&tid_reader[i], NULL, thr_reader,