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Diffstat (limited to '')
-rw-r--r-- | test/testshmproducer.c | 89 |
1 files changed, 89 insertions, 0 deletions
diff --git a/test/testshmproducer.c b/test/testshmproducer.c new file mode 100644 index 0000000..58eb94f --- /dev/null +++ b/test/testshmproducer.c @@ -0,0 +1,89 @@ +/* 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 "apr_shm.h" +#include "apr_errno.h" +#include "apr_general.h" +#include "apr_lib.h" +#include "apr_strings.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 void msgput(int boxnum, char *msg) +{ + apr_cpystrn(boxes[boxnum].msg, msg, strlen(msg) + 1); + boxes[boxnum].msgavail = 1; +} + +int main(void) +{ + apr_status_t rv; + apr_pool_t *pool; + apr_shm_t *shm; + int i; + int sent = 0; + + apr_initialize(); + + if (apr_pool_create(&pool, NULL) != APR_SUCCESS) { + exit(-1); + } + + rv = apr_shm_attach(&shm, SHARED_FILENAME, pool); + if (rv != APR_SUCCESS) { + exit(-2); + } + + boxes = apr_shm_baseaddr_get(shm); + + /* produce messages on all of the boxes, in descending order, + * Yes, we could just return N_BOXES, but I want to have a double-check + * in this code. The original code actually sent N_BOXES - 1 messages, + * so rather than rely on possibly buggy code, this way we know that we + * are returning the right number. + */ + for (i = N_BOXES - 1, sent = 0; i >= 0; i--, sent++) { + msgput(i, MSG); + apr_sleep(apr_time_from_sec(1)); + } + + rv = apr_shm_detach(shm); + if (rv != APR_SUCCESS) { + exit(-3); + } + + return sent; +} + +#else /* APR_HAS_SHARED_MEMORY */ + +int main(void) +{ + /* Just return, this program will never be launched, so there is no + * reason to print a message. + */ + return 0; +} + +#endif /* APR_HAS_SHARED_MEMORY */ + |