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-rw-r--r--rubbos/app/httpd-2.0.64/srclib/apr/test/testatomic.c344
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diff --git a/rubbos/app/httpd-2.0.64/srclib/apr/test/testatomic.c b/rubbos/app/httpd-2.0.64/srclib/apr/test/testatomic.c
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+++ b/rubbos/app/httpd-2.0.64/srclib/apr/test/testatomic.c
@@ -0,0 +1,344 @@
+/* Licensed to the Apache Software Foundation (ASF) under one or more
+ * contributor license agreements. See the NOTICE file distributed with
+ * this work for additional information regarding copyright ownership.
+ * The ASF licenses this file to You under the Apache License, Version 2.0
+ * (the "License"); you may not use this file except in compliance with
+ * the License. You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include "apr_thread_proc.h"
+#include "apr_errno.h"
+#include "apr_general.h"
+#include "apr_atomic.h"
+#include "errno.h"
+#include "apr_time.h"
+#if APR_HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+
+#if !(defined WIN32) && !(defined NETWARE)
+#include <pthread.h>
+#endif
+
+apr_pool_t *context;
+apr_atomic_t y; /* atomic locks */
+
+static apr_status_t check_basic_atomics(volatile apr_atomic_t*p)
+{
+ apr_atomic_t oldval;
+ apr_uint32_t casval = 0;
+ float object1, object2;
+#if !(defined NETWARE)
+ volatile void *casptr;
+#else
+ void *casptr;
+#endif
+ void *oldptr;
+
+ apr_atomic_set(&y, 2);
+ printf("%-60s", "testing apr_atomic_dec");
+ if (apr_atomic_dec(&y) == 0) {
+ fprintf(stderr, "Failed\noldval =%d should not be zero\n",
+ apr_atomic_read(&y));
+ return APR_EGENERAL;
+ }
+ if (apr_atomic_dec(&y) != 0) {
+ fprintf(stderr, "Failed\noldval =%d should be zero\n",
+ apr_atomic_read(&y));
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+
+ printf("%-60s", "testing CAS");
+ oldval = apr_atomic_cas(&casval, 12, 0);
+ if (oldval != 0) {
+ fprintf(stderr, "Failed\noldval =%d should be zero\n", oldval);
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+ printf("%-60s", "testing CAS - match non-null");
+ oldval = apr_atomic_cas(&casval, 23, 12);
+ if (oldval != 12) {
+ fprintf(stderr, "Failed\noldval =%d should be 12 y=%d\n",
+ oldval, casval);
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+ printf("%-60s", "testing CAS - no match");
+ oldval = apr_atomic_cas(&casval, 23, 12);
+ if (oldval != 23) {
+ fprintf(stderr, "Failed\noldval =%d should be 23 y=%d\n",
+ oldval, casval);
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+
+ printf("%-60s", "testing CAS for pointers");
+ casptr = NULL;
+ oldptr = apr_atomic_casptr(&casptr, &object1, 0);
+ if (oldptr != 0) {
+ fprintf(stderr, "Failed\noldval =%p should be zero\n", oldptr);
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+ printf("%-60s", "testing CAS for pointers - match non-null");
+ oldptr = apr_atomic_casptr(&casptr, &object2, &object1);
+ if (oldptr != &object1) {
+ fprintf(stderr, "Failed\noldval =%p should be %p\n", oldptr, &object1);
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+ printf("%-60s", "testing CAS for pointers - no match");
+ oldptr = apr_atomic_casptr(&casptr, &object2, &object1);
+ if (oldptr != &object2) {
+ fprintf(stderr, "Failed\noldval =%p should be %p\n", oldptr, &object2);
+ return APR_EGENERAL;
+ }
+ printf("OK\n");
+
+ printf("%-60s", "testing add");
+ apr_atomic_set(&y, 23);
+ apr_atomic_add(&y, 4);
+ if (apr_atomic_read(&y) != 27) {
+ fprintf(stderr,
+ "Failed\nAtomic Add doesn't add up ;( expected 27 got %d\n",
+ oldval);
+ return APR_EGENERAL;
+ }
+
+ printf("OK\n");
+ printf("%-60s", "testing add/inc");
+ apr_atomic_set(&y, 0);
+ apr_atomic_add(&y, 20);
+ apr_atomic_inc(&y);
+ if (apr_atomic_read(&y) != 21) {
+ fprintf(stderr, "Failed.\natomics do not add up\n");
+ return APR_EGENERAL;
+ }
+ fprintf(stdout, "OK\n");
+
+ return APR_SUCCESS;
+}
+
+#if !APR_HAS_THREADS
+int main(void)
+{
+ apr_status_t rv;
+
+ apr_initialize();
+
+ fprintf(stderr,
+ "This program won't work fully on this platform because there is no "
+ "support for threads.\n");
+ if (apr_pool_create(&context, NULL) != APR_SUCCESS) {
+ fflush(stdout);
+ fprintf(stderr, "Failed.\nCould not initialize\n");
+ exit(-1);
+ }
+ rv = apr_atomic_init(context);
+ if (rv != APR_SUCCESS) {
+ fprintf(stderr, "Failed.\nCould not initialize atomics\n");
+ exit(-1);
+ }
+ rv = check_basic_atomics(&y);
+ if (rv != APR_SUCCESS) {
+ fprintf(stderr, "Failed.\n");
+ exit(-1);
+ }
+ return 0;
+}
+#else /* !APR_HAS_THREADS */
+
+void * APR_THREAD_FUNC thread_func_mutex(apr_thread_t *thd, void *data);
+void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data);
+void * APR_THREAD_FUNC thread_func_none(apr_thread_t *thd, void *data);
+
+apr_thread_mutex_t *thread_lock;
+volatile long x = 0; /* mutex locks */
+volatile long z = 0; /* no locks */
+int value = 0;
+apr_status_t exit_ret_val = 123; /* just some made up number to check on later */
+
+#define NUM_THREADS 50
+#define NUM_ITERATIONS 20000
+void * APR_THREAD_FUNC thread_func_mutex(apr_thread_t *thd, void *data)
+{
+ int i;
+
+ for (i = 0; i < NUM_ITERATIONS; i++) {
+ apr_thread_mutex_lock(thread_lock);
+ x++;
+ apr_thread_mutex_unlock(thread_lock);
+ }
+ apr_thread_exit(thd, exit_ret_val);
+ return NULL;
+}
+
+void * APR_THREAD_FUNC thread_func_atomic(apr_thread_t *thd, void *data)
+{
+ int i;
+
+ for (i = 0; i < NUM_ITERATIONS ; i++) {
+ apr_atomic_inc(&y);
+ apr_atomic_add(&y, 2);
+ apr_atomic_dec(&y);
+ apr_atomic_dec(&y);
+ }
+ apr_thread_exit(thd, exit_ret_val);
+ return NULL;
+}
+
+void * APR_THREAD_FUNC thread_func_none(apr_thread_t *thd, void *data)
+{
+ int i;
+
+ for (i = 0; i < NUM_ITERATIONS ; i++) {
+ z++;
+ }
+ apr_thread_exit(thd, exit_ret_val);
+ return NULL;
+}
+
+int main(int argc, char**argv)
+{
+ apr_thread_t *t1[NUM_THREADS];
+ apr_thread_t *t2[NUM_THREADS];
+ apr_status_t r1[NUM_THREADS];
+ apr_status_t r2[NUM_THREADS];
+ apr_status_t s1[NUM_THREADS];
+ apr_status_t s2[NUM_THREADS];
+ apr_status_t rv;
+ int i;
+ int mutex;
+
+ apr_initialize();
+
+ if (argc == 2 && argv[1][0] == 'm') {
+ mutex = 1;
+ }
+ else {
+ mutex = 0;
+ }
+
+ printf("APR Atomic Test\n===============\n\n");
+#if !(defined WIN32) && !(defined NETWARE) && !(defined __MVS__) && !(defined DARWIN)
+ pthread_setconcurrency(8);
+#endif
+ printf("%-60s", "Initializing the context");
+ if (apr_pool_create(&context, NULL) != APR_SUCCESS) {
+ fflush(stdout);
+ fprintf(stderr, "Failed.\nCould not initialize\n");
+ exit(-1);
+ }
+ printf("OK\n");
+
+ if (mutex == 1) {
+ printf("%-60s", "Initializing the lock");
+ rv = apr_thread_mutex_create(&thread_lock, APR_THREAD_MUTEX_DEFAULT,
+ context);
+ if (rv != APR_SUCCESS) {
+ fflush(stdout);
+ fprintf(stderr, "Failed\nCould not create lock\n");
+ exit(-1);
+ }
+ printf("OK\n");
+ }
+ printf("%-60s", "Initializing the atomics");
+ rv = apr_atomic_init(context);
+ if (rv != APR_SUCCESS) {
+ fprintf(stderr, "Failed.\n");
+ exit(-1);
+ }
+ printf("OK\n");
+
+ rv = check_basic_atomics(&y);
+ if (rv != APR_SUCCESS) {
+ fprintf(stderr, "Failed.\n");
+ exit(-1);
+ }
+ apr_atomic_set(&y, 0);
+
+ printf("%-60s", "Starting all the threads");
+ for (i = 0; i < NUM_THREADS; i++) {
+ r1[i] = apr_thread_create(&t1[i], NULL,
+ (mutex == 1 ? thread_func_mutex : thread_func_atomic),
+ NULL, context);
+ r2[i] = apr_thread_create(&t2[i], NULL, thread_func_none, NULL,
+ context);
+ if (r1[i] != APR_SUCCESS || r2[i] != APR_SUCCESS ) {
+ fflush(stdout);
+ fprintf(stderr, "Failed\nError starting thread in group %d\n",i);
+ exit(-1);
+ }
+ }
+ printf("OK\n");
+
+ printf("%-60s\n", "Waiting for threads to exit");
+ printf("%-60s", "(Note that this may take a while to complete.)");
+ fflush(stdout);
+
+ for (i = 0; i < NUM_THREADS; i++) {
+ apr_thread_join(&s1[i], t1[i]);
+ apr_thread_join(&s2[i], t2[i]);
+ if (s1[i] != exit_ret_val || s2[i] != exit_ret_val) {
+ fprintf(stderr,
+ "Invalid return value\n"
+ "Got %d/%d, but expected %d for all \n",
+ s1[i], s2[i], exit_ret_val);
+ }
+ }
+ printf("OK\n");
+
+ if (mutex == 1) {
+ printf("%-60s", "Checking if mutex locks worked");
+ if (x != NUM_THREADS * NUM_ITERATIONS) {
+ fflush(stdout);
+ fprintf(stderr,
+ "No!\nThe locks didn't work?? x = %ld instead of %ld\n",
+ x,
+ (long)NUM_THREADS * NUM_ITERATIONS);
+ }
+ else {
+ printf("OK\n");
+ }
+ }
+ else {
+ printf("%-60s", "Checking if atomic worked");
+ if (apr_atomic_read(&y) != NUM_THREADS * NUM_ITERATIONS) {
+ fflush(stdout);
+ fprintf(stderr,
+ "No!\nThe atomics didn't work?? y = %ld instead of %ld\n",
+ (long)apr_atomic_read(&y),
+ (long)NUM_THREADS * NUM_ITERATIONS);
+ }
+ else {
+ printf("OK\n");
+ }
+ }
+ printf("%-60s", "Checking if nolock worked");
+ if (z != NUM_THREADS * NUM_ITERATIONS) {
+ fflush(stdout);
+ fprintf(stderr,
+ "no surprise\n"
+ "The no-locks didn't work. z = %ld instead of %ld\n",
+ z,
+ (long)NUM_THREADS * NUM_ITERATIONS);
+ }
+ else {
+ printf("OK\n");
+ }
+
+ return 0;
+}
+
+#endif /* !APR_HAS_THREADS */