-/* Copyright (c) 2012-2014. The SimGrid Team.
- * All rights reserved. */
+/* Copyright (c) 2012-2019. The SimGrid Team. All rights reserved. */
/* This program is free software; you can redistribute it and/or modify it
* under the terms of the license (GNU LGPL) which comes with this package. */
-#include "xbt/mmalloc.h"
+#include "simgrid/Exception.hpp"
#include "xbt.h"
-#include <stdio.h>
-#include <assert.h>
+#include "xbt/mmalloc.h"
+
+#include <cassert>
+#include <cstdio>
+#include <cstdlib>
+#include <cstring>
#include <fcntl.h>
#include <sys/stat.h>
-#include <stdlib.h>
-#include <string.h>
#include <unistd.h>
-#include <xbt/ex.hpp>
-
XBT_LOG_NEW_DEFAULT_CATEGORY(test,"this test");
#define BUFFSIZE 204800
#define TESTSIZE 100
#define size_of_block(i) (((i % 50)+1)* 100)
+static void check_block(const void* s, int c, int n)
+{
+ const unsigned char* p = static_cast<const unsigned char*>(s);
+ unsigned char b = static_cast<unsigned char>(c);
+ for (int i = 0; i < n; i++)
+ if (p[i] != b)
+ xbt_die("value mismatch: %p[%d] = %#hhx, expected %#hhx", p, i, p[i], b);
+}
+
int main(int argc, char**argv)
{
xbt_mheap_t heapA = nullptr;
for (i = 0; i < TESTSIZE; i++) {
size = size_of_block(i);
pointers[i] = mmalloc(heapA, size);
- XBT_INFO("%d bytes allocated with offset %tx", size, ((char*)pointers[i])-((char*)heapA));
+ XBT_INFO("%d bytes allocated with offset %zx", size, (size_t)((char*)pointers[i] - (char*)heapA));
}
XBT_INFO("All blocks were correctly allocated. Free every second block");
for (i = 0; i < TESTSIZE; i+=2) {
} catch(xbt_ex& e) {
gotit = true;
}
- if (!gotit)
+ if (not gotit)
xbt_die("FAIL: A double-free went undetected (for size:%d)",size_of_block(i));
}
} catch(xbt_ex& e) {
gotit = true;
}
- if (!gotit)
+ if (not gotit)
xbt_die("FAIL: A double-free went undetected (for size:%d)",size_of_block(i));
}
+ XBT_INFO("Let's try different codepaths for mrealloc");
+ for (i = 0; i < TESTSIZE; i++) {
+ const std::vector<std::pair<int, int>> requests = {
+ {size_of_block(i) / 2, 0x77}, {size_of_block(i) * 2, 0xaa}, {1, 0xc0}, {0, 0}};
+ pointers[i] = nullptr;
+ for (unsigned k = 0; k < requests.size(); ++k) {
+ size = requests[k].first;
+ pointers[i] = mrealloc(heapA, pointers[i], size);
+ if (k > 0)
+ check_block(pointers[i], requests[k - 1].second, std::min(size, requests[k - 1].first));
+ if (size > 0)
+ memset(pointers[i], requests[k].second, size);
+ }
+ }
+
XBT_INFO("Damnit, I cannot break mmalloc this time. That's SO disappointing.");
return 0;
}