release/1.1.5.1_cvsreleng/1

1 files changed, 37 insertions, 0 deletions

diff --git a/lib/libmalloc/tests/t2.c b/lib/libmalloc/tests/t2.c
new file mode 100644
index 000000000000..125c251e42b1
--- /dev/null
+++ b/lib/libmalloc/tests/t2.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+
+#define MAXALLOCS   100
+#define INC	    50
+
+extern char *sbrk();
+extern char *malloc();
+
+main()
+{
+    char *ptr1, *ptr2;
+    char *obrk, *nbrk;
+    int i;
+    int small = 10;
+    int large = 128;
+
+    obrk = sbrk(0);
+    printf("break is initially 0x%x\n", obrk);
+
+    ptr1 = malloc(small);
+    ptr2 = malloc(small);
+    for(i = 0; i < MAXALLOCS; i++) {
+	(void) malloc(small);
+	free(ptr1);
+	ptr1 = malloc(large);
+	large += INC;
+	(void) malloc(small);
+	free(ptr2);
+	ptr2 = malloc(large);
+	large += INC;
+	mal_heapdump(stdout);
+    }
+    nbrk = sbrk(0);
+    printf("break is 0x%x (%d bytes sbrked)\n",
+     nbrk, nbrk - obrk);
+    exit(0);
+}