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-rw-r--r--test/testshm.c281
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diff --git a/test/testshm.c b/test/testshm.c
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+/* 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 "testutil.h"
+#include "apr_shm.h"
+#include "apr_errno.h"
+#include "apr_general.h"
+#include "apr_lib.h"
+#include "apr_strings.h"
+#include "apr_thread_proc.h"
+#include "apr_time.h"
+#include "testshm.h"
+#include "apr.h"
+
+#if APR_HAVE_STDLIB_H
+#include <stdlib.h>
+#endif
+
+#if APR_HAS_SHARED_MEMORY
+
+static int msgwait(int sleep_sec, int first_box, int last_box)
+{
+ int i;
+ int recvd = 0;
+ apr_time_t start = apr_time_now();
+ apr_interval_time_t sleep_duration = apr_time_from_sec(sleep_sec);
+ while (apr_time_now() - start < sleep_duration) {
+ for (i = first_box; i < last_box; i++) {
+ if (boxes[i].msgavail && !strcmp(boxes[i].msg, MSG)) {
+ recvd++;
+ boxes[i].msgavail = 0; /* reset back to 0 */
+ /* reset the msg field. 1024 is a magic number and it should
+ * be a macro, but I am being lazy.
+ */
+ memset(boxes[i].msg, 0, 1024);
+ }
+ }
+ apr_sleep(apr_time_make(0, 10000)); /* 10ms */
+ }
+ return recvd;
+}
+
+static void msgput(int boxnum, char *msg)
+{
+ apr_cpystrn(boxes[boxnum].msg, msg, strlen(msg) + 1);
+ boxes[boxnum].msgavail = 1;
+}
+
+static void test_anon_create(abts_case *tc, void *data)
+{
+ apr_status_t rv;
+ apr_shm_t *shm = NULL;
+
+ rv = apr_shm_create(&shm, SHARED_SIZE, NULL, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ ABTS_PTR_NOTNULL(tc, shm);
+
+ rv = apr_shm_destroy(shm);
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
+}
+
+static void test_check_size(abts_case *tc, void *data)
+{
+ apr_status_t rv;
+ apr_shm_t *shm = NULL;
+ apr_size_t retsize;
+
+ rv = apr_shm_create(&shm, SHARED_SIZE, NULL, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ ABTS_PTR_NOTNULL(tc, shm);
+
+ retsize = apr_shm_size_get(shm);
+ ABTS_SIZE_EQUAL(tc, SHARED_SIZE, retsize);
+
+ rv = apr_shm_destroy(shm);
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
+}
+
+static void test_shm_allocate(abts_case *tc, void *data)
+{
+ apr_status_t rv;
+ apr_shm_t *shm = NULL;
+
+ rv = apr_shm_create(&shm, SHARED_SIZE, NULL, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ ABTS_PTR_NOTNULL(tc, shm);
+
+ boxes = apr_shm_baseaddr_get(shm);
+ ABTS_PTR_NOTNULL(tc, boxes);
+
+ rv = apr_shm_destroy(shm);
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
+}
+
+#if APR_HAS_FORK
+static void test_anon(abts_case *tc, void *data)
+{
+ apr_proc_t proc;
+ apr_status_t rv;
+ apr_shm_t *shm;
+ apr_size_t retsize;
+ int cnt, i;
+ int recvd;
+
+ rv = apr_shm_create(&shm, SHARED_SIZE, NULL, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ ABTS_PTR_NOTNULL(tc, shm);
+
+ retsize = apr_shm_size_get(shm);
+ ABTS_INT_EQUAL(tc, SHARED_SIZE, retsize);
+
+ boxes = apr_shm_baseaddr_get(shm);
+ ABTS_PTR_NOTNULL(tc, boxes);
+
+ rv = apr_proc_fork(&proc, p);
+ if (rv == APR_INCHILD) { /* child */
+ int num = msgwait(5, 0, N_BOXES);
+ /* exit with the number of messages received so that the parent
+ * can check that all messages were received.
+ */
+ exit(num);
+ }
+ else if (rv == APR_INPARENT) { /* parent */
+ i = N_BOXES;
+ cnt = 0;
+ while (cnt++ < N_MESSAGES) {
+ if ((i-=3) < 0) {
+ i += N_BOXES; /* start over at the top */
+ }
+ msgput(i, MSG);
+ apr_sleep(apr_time_make(0, 10000));
+ }
+ }
+ else {
+ ABTS_FAIL(tc, "apr_proc_fork failed");
+ }
+ /* wait for the child */
+ rv = apr_proc_wait(&proc, &recvd, NULL, APR_WAIT);
+ ABTS_INT_EQUAL(tc, N_MESSAGES, recvd);
+
+ rv = apr_shm_destroy(shm);
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
+}
+#endif
+
+static void test_named(abts_case *tc, void *data)
+{
+ apr_status_t rv;
+ apr_shm_t *shm = NULL;
+ apr_size_t retsize;
+ apr_proc_t pidproducer, pidconsumer;
+ apr_procattr_t *attr1 = NULL, *attr2 = NULL;
+ int sent, received;
+ apr_exit_why_e why;
+ const char *args[4];
+
+ apr_shm_remove(SHARED_FILENAME, p);
+
+ rv = apr_shm_create(&shm, SHARED_SIZE, SHARED_FILENAME, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ if (rv != APR_SUCCESS) {
+ return;
+ }
+ ABTS_PTR_NOTNULL(tc, shm);
+
+ retsize = apr_shm_size_get(shm);
+ ABTS_SIZE_EQUAL(tc, SHARED_SIZE, retsize);
+
+ boxes = apr_shm_baseaddr_get(shm);
+ ABTS_PTR_NOTNULL(tc, boxes);
+
+ rv = apr_procattr_create(&attr1, p);
+ ABTS_PTR_NOTNULL(tc, attr1);
+ APR_ASSERT_SUCCESS(tc, "Couldn't create attr1", rv);
+ args[0] = apr_pstrdup(p, "testshmproducer" EXTENSION);
+ args[1] = NULL;
+ rv = apr_proc_create(&pidproducer, TESTBINPATH "testshmproducer" EXTENSION, args,
+ NULL, attr1, p);
+ APR_ASSERT_SUCCESS(tc, "Couldn't launch producer", rv);
+
+ rv = apr_procattr_create(&attr2, p);
+ ABTS_PTR_NOTNULL(tc, attr2);
+ APR_ASSERT_SUCCESS(tc, "Couldn't create attr2", rv);
+ args[0] = apr_pstrdup(p, "testshmconsumer" EXTENSION);
+ rv = apr_proc_create(&pidconsumer, TESTBINPATH "testshmconsumer" EXTENSION, args,
+ NULL, attr2, p);
+ APR_ASSERT_SUCCESS(tc, "Couldn't launch consumer", rv);
+
+ rv = apr_proc_wait(&pidconsumer, &received, &why, APR_WAIT);
+ ABTS_INT_EQUAL(tc, APR_CHILD_DONE, rv);
+ ABTS_INT_EQUAL(tc, APR_PROC_EXIT, why);
+
+ rv = apr_proc_wait(&pidproducer, &sent, &why, APR_WAIT);
+ ABTS_INT_EQUAL(tc, APR_CHILD_DONE, rv);
+ ABTS_INT_EQUAL(tc, APR_PROC_EXIT, why);
+
+ /* Cleanup before testing that producer and consumer worked correctly.
+ * This way, if they didn't succeed, we can just run this test again
+ * without having to cleanup manually.
+ */
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory",
+ apr_shm_destroy(shm));
+
+ ABTS_INT_EQUAL(tc, sent, received);
+
+}
+
+static void test_named_remove(abts_case *tc, void *data)
+{
+ apr_status_t rv;
+ apr_shm_t *shm, *shm2;
+
+ apr_shm_remove(SHARED_FILENAME, p);
+
+ rv = apr_shm_create(&shm, SHARED_SIZE, SHARED_FILENAME, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ if (rv != APR_SUCCESS) {
+ return;
+ }
+ ABTS_PTR_NOTNULL(tc, shm);
+
+ rv = apr_shm_remove(SHARED_FILENAME, p);
+
+ /* On platforms which acknowledge the removal of the shared resource,
+ * ensure another of the same name may be created after removal;
+ */
+ if (rv == APR_SUCCESS)
+ {
+ rv = apr_shm_create(&shm2, SHARED_SIZE, SHARED_FILENAME, p);
+ APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
+ if (rv != APR_SUCCESS) {
+ return;
+ }
+ ABTS_PTR_NOTNULL(tc, shm2);
+
+ rv = apr_shm_destroy(shm2);
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
+ }
+
+ rv = apr_shm_destroy(shm);
+ APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
+
+ /* Now ensure no named resource remains which we may attach to */
+ rv = apr_shm_attach(&shm, SHARED_FILENAME, p);
+ ABTS_TRUE(tc, rv != 0);
+}
+
+#endif
+
+abts_suite *testshm(abts_suite *suite)
+{
+ suite = ADD_SUITE(suite)
+
+#if APR_HAS_SHARED_MEMORY
+ abts_run_test(suite, test_anon_create, NULL);
+ abts_run_test(suite, test_check_size, NULL);
+ abts_run_test(suite, test_shm_allocate, NULL);
+#if APR_HAS_FORK
+ abts_run_test(suite, test_anon, NULL);
+#endif
+ abts_run_test(suite, test_named, NULL);
+ abts_run_test(suite, test_named_remove, NULL);
+#endif
+
+ return suite;
+}
+
+
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