Imported Upstream version 0.6.15

[platform/upstream/libsolv.git] / src / util.c

diff --git a/src/util.c b/src/util.c
index d8ae7ca..d611297 100644 (file)
--- a/src/util.c
+++ b/src/util.c
@@ -76,6 +76,30 @@ solv_calloc(size_t num, size_t len)
   return r;
 }
 
+/* this was solv_realloc2(old, len, size), but we now overshoot
+ * for huge len sizes */
+void *
+solv_extend_realloc(void *old, size_t len, size_t size, size_t block)
+{
+  size_t xblock = (block + 1) << 5;
+  len = (len + block) & ~block;
+  if (len >= xblock && xblock)
+    {
+      xblock <<= 1;
+      while (len >= xblock && xblock)
+       xblock <<= 1;
+      if (xblock)
+       {
+         size_t nlen;
+          xblock = (xblock >> 5) - 1;
+         nlen = (len + xblock) & ~xblock;
+         if (nlen > len)
+           len = nlen;
+       }
+    }
+  return solv_realloc2(old, len, size);
+}
+
 void *
 solv_free(void *mem)
 {