Add rpmalloc.

https://github.com/rampantpixels/rpmalloc/tree/master/rpmalloc
2592b551b26d0ac9d1c92db3c1ae6c0ce5cd447a

client/tracy_rpmalloc.hpp

@@ -0,0 +1,119 @@
+/* rpmalloc.h  -  Memory allocator  -  Public Domain  -  2016 Mattias Jansson / Rampant Pixels
+ *
+ * This library provides a cross-platform lock free thread caching malloc implementation in C11.
+ * The latest source code is always available at
+ *
+ * https://github.com/rampantpixels/rpmalloc
+ *
+ * This library is put in the public domain; you can redistribute it and/or modify it without any restrictions.
+ *
+ */
+
+#pragma once
+
+#include <stddef.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__clang__) || defined(__GNUC__)
+# define RPMALLOC_ATTRIBUTE __attribute__((__malloc__))
+# define RPMALLOC_CALL
+#elif defined(_MSC_VER)
+# define RPMALLOC_ATTRIBUTE
+# define RPMALLOC_CALL __declspec(restrict)
+#else
+# define RPMALLOC_ATTRIBUTE
+# define RPMALLOC_CALL
+#endif
+
+//! Flag to rpaligned_realloc to not preserve content in reallocation
+#define RPMALLOC_NO_PRESERVE    1
+
+typedef struct rpmalloc_global_statistics_t {
+	//! Current amount of virtual memory mapped (only if ENABLE_STATISTICS=1)
+	size_t mapped;
+	//! Current amount of memory in global caches for small and medium sizes (<64KiB)
+	size_t cached;
+	//! Curren amount of memory in global caches for large sizes (>=64KiB)
+	size_t cached_large;
+	//! Total amount of memory mapped (only if ENABLE_STATISTICS=1)
+	size_t mapped_total;
+	//! Total amount of memory unmapped (only if ENABLE_STATISTICS=1)
+	size_t unmapped_total;
+} rpmalloc_global_statistics_t;
+
+typedef struct rpmalloc_thread_statistics_t {
+	//! Amount of memory currently requested in allocations (only if ENABLE_STATISTICS=1)
+	size_t requested;
+	//! Amount of memory actually allocated in memory blocks (only if ENABLE_STATISTICS=1)
+	size_t allocated;
+	//! Current number of bytes available for allocation from active spans
+	size_t active;
+	//! Current number of bytes available in thread size class caches
+	size_t sizecache;
+	//! Current number of bytes available in thread span caches
+	size_t spancache;
+	//! Current number of bytes in pending deferred deallocations
+	size_t deferred;
+	//! Total number of bytes transitioned from thread cache to global cache
+	size_t thread_to_global;
+	//! Total number of bytes transitioned from global cache to thread cache
+	size_t global_to_thread;
+} rpmalloc_thread_statistics_t;
+
+extern int
+rpmalloc_initialize(void);
+
+extern void
+rpmalloc_finalize(void);
+
+extern void
+rpmalloc_thread_initialize(void);
+
+extern void
+rpmalloc_thread_finalize(void);
+
+extern void
+rpmalloc_thread_collect(void);
+
+extern int
+rpmalloc_is_thread_initialized(void);
+
+extern void
+rpmalloc_thread_statistics(rpmalloc_thread_statistics_t* stats);
+
+extern void
+rpmalloc_global_statistics(rpmalloc_global_statistics_t* stats);
+
+extern RPMALLOC_CALL void*
+rpmalloc(size_t size) RPMALLOC_ATTRIBUTE;
+
+extern void
+rpfree(void* ptr);
+
+extern RPMALLOC_CALL void*
+rpcalloc(size_t num, size_t size) RPMALLOC_ATTRIBUTE;
+
+extern void*
+rprealloc(void* ptr, size_t size);
+
+extern void*
+rpaligned_realloc(void* ptr, size_t alignment, size_t size, size_t oldsize, unsigned int flags);
+
+extern RPMALLOC_CALL void*
+rpaligned_alloc(size_t alignment, size_t size) RPMALLOC_ATTRIBUTE;
+
+extern RPMALLOC_CALL void*
+rpmemalign(size_t alignment, size_t size) RPMALLOC_ATTRIBUTE;
+
+extern int
+rpposix_memalign(void **memptr, size_t alignment, size_t size);
+
+extern size_t
+rpmalloc_usable_size(void* ptr);
+
+#ifdef __cplusplus
+}
+#endif