89 строки
2.3 KiB
C
89 строки
2.3 KiB
C
/*
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* Copyright (c) 2004-2005 The Trustees of Indiana University.
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* All rights reserved.
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* Copyright (c) 2004-2005 The Trustees of the University of Tennessee.
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* All rights reserved.
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* Copyright (c) 2004-2005 High Performance Computing Center Stuttgart,
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* University of Stuttgart. All rights reserved.
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* Copyright (c) 2004-2005 The Regents of the University of California.
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* All rights reserved.
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* $COPYRIGHT$
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*
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* Additional copyrights may follow
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*
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* $HEADER$
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*/
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#include "ompi_config.h"
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#include <stdlib.h>
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#include <stdio.h>
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#include <sys/mman.h>
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#include "ompi/include/constants.h"
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#include "opal/runtime/opal.h"
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#include "opal/memory/memory.h"
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int ret = 2;
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int size = 10 * 1024 * 1024;
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static void
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callback(void *buf, size_t length, void *cbdata)
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{
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printf("\tcallback with %lx, %d\n", (unsigned long) buf, (int) length);
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ret--;
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}
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int
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main(int argc, char *argv[])
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{
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void * foo, *bar;
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int retval;
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opal_init();
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if (!opal_mem_free_is_supported()) {
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printf("no memory registration supported. skipping\n");
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return 77;
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}
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retval = opal_mem_free_register_handler(callback, NULL);
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if (retval != OMPI_SUCCESS) return retval;
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/* make some big malloc that should trip an unmap */
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foo = malloc(size);
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printf(" - free of first big buffer\n");
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free(foo);
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/* and check munmap directly */
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printf(" - munmap of small buffer\n");
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munmap(NULL, 0);
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/* see if realloc works. This is kind of a huristic (that going
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from a small block to a big one will fail), so don't make this
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an error */
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if (ret == 0) {
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ret = 2;
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printf(" - realloc\n");
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foo = malloc(size);
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bar = malloc(10);
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foo = realloc(foo, size * 2);
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free(bar);
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free(foo);
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if (ret > 0) {
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printf("WARNING - It appears that realloc does not trigger a callback\n");
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printf("WARNING - this may be a problem or it may be a sign that your\n");
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printf("WARNING - memory manager is better than mine\n");
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printf("ret: %d\n", ret);
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}
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ret = 0;
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}
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retval = opal_mem_free_unregister_handler(callback);
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if (retval != OMPI_SUCCESS) return retval;
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opal_finalize();
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return ret;
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}
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