X-Git-Url: https://pintos-os.org/cgi-bin/gitweb.cgi?p=pintos-anon;a=blobdiff_plain;f=src%2Fthreads%2Fmalloc.c;h=72b441488393d862daed5c1a8ba367314089a90a;hp=8da4c4e4b0aaf2319f0e885859698daed1222671;hb=c848687b0825179f834e4b1b7a1a52579d902744;hpb=5fee8f8b27a500edbb1a8a39cf1669c97618e740

diff --git a/src/threads/malloc.c b/src/threads/malloc.c
index 8da4c4e..72b4414 100644
--- a/src/threads/malloc.c
+++ b/src/threads/malloc.c
@@ -97,6 +97,23 @@ malloc (size_t size)
   return get_free_slot (d);
 }
 
+void *
+calloc (size_t a, size_t b) 
+{
+  void *p;
+  size_t size;
+
+  size = a * b;
+  if (size < a || size < b)
+    return NULL;
+
+  p = malloc (size);
+  if (p != NULL)
+    memset (p, 0, size);
+
+  return p;
+}
+
 void
 free (void *p) 
 {