Author: adrian.chadd
Date: Sun Apr 12 08:47:05 2009
New Revision: 13924
Added:
branches/LUSCA_HEAD/libcore/mem.h
Log:
Start fleshing out some more malloc wrappers which -can- fail.
Some code will handle this gracefully.
Added: branches/LUSCA_HEAD/libcore/mem.h
==============================================================================
--- (empty file)
+++ branches/LUSCA_HEAD/libcore/mem.h Sun Apr 12 08:47:05 2009
@@ -0,0 +1,35 @@
+#ifndef __LIBCORE_MEM_H__
+#define __LIBCORE_MEM_H__
+
+/*
+ * These functions implement traditional malloc-with-failure
+ * wrapping so code can easily hook into the malloc/free path
+ * without needing to override the symbols (which may occur
+ * for other reasons, eg including the google malloc library
+ * at runtime.)
+ *
+ * The code in lib/ (xmalloc, etc) guarantees a valid pointer on
+ * return which makes it difficult to try and code for transient
+ * out of memory failures.
+ */
+static inline void *
+xxmalloc(size_t sz)
+{
+ return malloc(sz);
+}
+
+static inline void *
+xxcalloc(size_t count, size_t sz)
+{
+ return calloc(count, sz);
+}
+
+static inline void *
+xxrealloc(void *ptr, size_t *sz)
+{
+ return realloc(ptr, sz);
+}
+
+#define xxfree(p) do { if (p) free(p); (p) = NULL; } while (0)
+
+#endif
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