8a1ecd1982
Summary: JEMALLOC_CXX_THROW is not defined for earlier versions of jemalloc (e.g. 3.6), causing builds to fail on some platforms. Fixing it. Closes #4869 Pull Request resolved: https://github.com/facebook/rocksdb/pull/5053 Differential Revision: D14390034 Pulled By: sagar0 fbshipit-source-id: b2b7a03cd377201ef385eb521f65bae85c558055
54 lines
2.5 KiB
C
54 lines
2.5 KiB
C
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
|
|
// This source code is licensed under both the GPLv2 (found in the
|
|
// COPYING file in the root directory) and Apache 2.0 License
|
|
// (found in the LICENSE.Apache file in the root directory).
|
|
|
|
#pragma once
|
|
|
|
#ifdef ROCKSDB_JEMALLOC
|
|
#ifdef __FreeBSD__
|
|
#include <malloc_np.h>
|
|
#else
|
|
#include <jemalloc/jemalloc.h>
|
|
#endif
|
|
|
|
#ifndef JEMALLOC_CXX_THROW
|
|
#define JEMALLOC_CXX_THROW
|
|
#endif
|
|
|
|
// Declare non-standard jemalloc APIs as weak symbols. We can null-check these
|
|
// symbols to detect whether jemalloc is linked with the binary.
|
|
extern "C" void* mallocx(size_t, int) __attribute__((__weak__));
|
|
extern "C" void* rallocx(void*, size_t, int) __attribute__((__weak__));
|
|
extern "C" size_t xallocx(void*, size_t, size_t, int) __attribute__((__weak__));
|
|
extern "C" size_t sallocx(const void*, int) __attribute__((__weak__));
|
|
extern "C" void dallocx(void*, int) __attribute__((__weak__));
|
|
extern "C" void sdallocx(void*, size_t, int) __attribute__((__weak__));
|
|
extern "C" size_t nallocx(size_t, int) __attribute__((__weak__));
|
|
extern "C" int mallctl(const char*, void*, size_t*, void*, size_t)
|
|
__attribute__((__weak__));
|
|
extern "C" int mallctlnametomib(const char*, size_t*, size_t*)
|
|
__attribute__((__weak__));
|
|
extern "C" int mallctlbymib(const size_t*, size_t, void*, size_t*, void*,
|
|
size_t) __attribute__((__weak__));
|
|
extern "C" void malloc_stats_print(void (*)(void*, const char*), void*,
|
|
const char*) __attribute__((__weak__));
|
|
extern "C" size_t malloc_usable_size(JEMALLOC_USABLE_SIZE_CONST void*)
|
|
JEMALLOC_CXX_THROW __attribute__((__weak__));
|
|
|
|
// Check if Jemalloc is linked with the binary. Note the main program might be
|
|
// using a different memory allocator even this method return true.
|
|
// It is loosely based on folly::usingJEMalloc(), minus the check that actually
|
|
// allocate memory and see if it is through jemalloc, to handle the dlopen()
|
|
// case:
|
|
// https://github.com/facebook/folly/blob/76cf8b5841fb33137cfbf8b224f0226437c855bc/folly/memory/Malloc.h#L147
|
|
static inline bool HasJemalloc() {
|
|
return mallocx != nullptr && rallocx != nullptr && xallocx != nullptr &&
|
|
sallocx != nullptr && dallocx != nullptr && sdallocx != nullptr &&
|
|
nallocx != nullptr && mallctl != nullptr &&
|
|
mallctlnametomib != nullptr && mallctlbymib != nullptr &&
|
|
malloc_stats_print != nullptr && malloc_usable_size != nullptr;
|
|
}
|
|
|
|
#endif // ROCKSDB_JEMALLOC
|