1 files changed, 47 insertions, 0 deletions
diff --git a/deps/hdr_histogram/hdr_alloc.h b/deps/hdr_histogram/hdr_alloc.h
new file mode 100644
index 000000000..410f640af
--- /dev/null
+++ b/deps/hdr_histogram/hdr_alloc.h
@@ -0,0 +1,47 @@
+/**
+ * hdr_alloc.h
+ * Written by Filipe Oliveira and released to the public domain,
+ * as explained at http://creativecommons.org/publicdomain/zero/1.0/
+ *
+ * Allocator selection.
+ *
+ * This file is used in order to change the HdrHistogram allocator at run
+ * time. */
+
+#ifndef HDR_ALLOC_H
+#define HDR_ALLOC_H
+
+#include <stddef.h> /* for size_t */
+#include <stdint.h>
+
+/* Structure pointing to our actually configured allocators */
+typedef struct hdrAllocFuncs {
+    void *(*mallocFn)(size_t);
+    void *(*callocFn)(size_t, size_t);
+    void *(*reallocFn)(void *, size_t);
+    void (*freeFn)(void *);
+} hdrAllocFuncs;
+
+/* hdr' configured allocator function pointer struct */
+extern hdrAllocFuncs hdrAllocFns;
+
+hdrAllocFuncs hdrSetAllocators(hdrAllocFuncs *ha);
+void hdrResetAllocators(void);
+
+static inline void *hdr_malloc(size_t size) {
+    return hdrAllocFns.mallocFn(size);
+}
+
+static inline void *hdr_calloc(size_t nmemb, size_t size) {
+    return hdrAllocFns.callocFn(nmemb, size);
+}
+
+static inline void *hdr_realloc(void *ptr, size_t size) {
+    return hdrAllocFns.reallocFn(ptr, size);
+}
+
+static inline void hdr_free(void *ptr) {
+    hdrAllocFns.freeFn(ptr);
+}
+
+#endif /* HDR_ALLOC_H */