1 files changed, 34 insertions, 0 deletions
diff --git a/deps/hdr_histogram/hdr_alloc.c b/deps/hdr_histogram/hdr_alloc.c
new file mode 100644
index 000000000..d2bc611d9
--- /dev/null
+++ b/deps/hdr_histogram/hdr_alloc.c
@@ -0,0 +1,34 @@
+/**
+ * hdr_alloc.c
+ * Written by Filipe Oliveira and released to the public domain,
+ * as explained at http://creativecommons.org/publicdomain/zero/1.0/
+ */
+
+#include "hdr_alloc.h"
+#include <stdlib.h>
+
+hdrAllocFuncs hdrAllocFns = {
+    .mallocFn = malloc,
+    .callocFn = calloc,
+    .reallocFn = realloc,
+    .freeFn = free,
+};
+
+/* Override hdr' allocators with ones supplied by the user */
+hdrAllocFuncs hdrSetAllocators(hdrAllocFuncs *override) {
+    hdrAllocFuncs orig = hdrAllocFns;
+
+    hdrAllocFns = *override;
+
+    return orig;
+}
+
+/* Reset allocators to use build time defaults */
+void hdrResetAllocators(void) {
+    hdrAllocFns = (hdrAllocFuncs){
+        .mallocFn = malloc,
+        .callocFn = calloc,
+        .reallocFn = realloc,
+        .freeFn = free,
+    };
+}