add a basic tesh test about mmalloc

[simgrid.git] / teshsuite / xbt / mmalloc_test.c

diff --git a/teshsuite/xbt/mmalloc_test.c b/teshsuite/xbt/mmalloc_test.c
new file mode 100644 (file)
index 0000000..8606e3a
--- /dev/null
+++ b/teshsuite/xbt/mmalloc_test.c
@@ -0,0 +1,42 @@
+#include "xbt/mmalloc.h"
+#include <stdio.h>
+#include <assert.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+
+
+#define BUFFSIZE 204800
+#define TESTSIZE 100
+
+int main()
+{
+  void *heapA;
+  void *pointers[TESTSIZE];
+  srand(0); // we need the test to be reproducible
+
+  heapA = xbt_mheap_new(-1, ((char*)sbrk(0)) + BUFFSIZE);
+  if (heapA == NULL) {
+    perror("attach 1 failed");
+    fprintf(stderr, "bye\n");
+    exit(1);
+  }
+
+  fprintf(stderr, "HeapA=%p\n", heapA);
+   fflush(stderr);
+  int i, size;
+  for (i = 0; i < TESTSIZE; i++) {
+    size = rand() % 1000;
+    pointers[i] = mmalloc(heapA, size);
+    fprintf(stderr, "%d bytes allocated with offset %li\n", size, ((char*)pointers[i])-((char*)heapA));
+  }
+
+  for (i = 0; i < TESTSIZE; i++) {
+    mfree(heapA, pointers[i]);
+  }
+
+  fprintf(stderr, "Ok bye bye\n");
+  return 0;
+}