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Diffstat (limited to 'examples/redis-unstable/src/zmalloc.h')
| -rw-r--r-- | examples/redis-unstable/src/zmalloc.h | 168 |
1 files changed, 0 insertions, 168 deletions
diff --git a/examples/redis-unstable/src/zmalloc.h b/examples/redis-unstable/src/zmalloc.h deleted file mode 100644 index 3dda503..0000000 --- a/examples/redis-unstable/src/zmalloc.h +++ /dev/null @@ -1,168 +0,0 @@ -/* zmalloc - total amount of allocated memory aware version of malloc() - * - * Copyright (c) 2009-Present, Redis Ltd. - * All rights reserved. - * - * Licensed under your choice of (a) the Redis Source Available License 2.0 - * (RSALv2); or (b) the Server Side Public License v1 (SSPLv1); or (c) the - * GNU Affero General Public License v3 (AGPLv3). - */ - -#ifndef __ZMALLOC_H -#define __ZMALLOC_H - -/* Double expansion needed for stringification of macro values. */ -#define __xstr(s) __str(s) -#define __str(s) #s - -#if defined(USE_TCMALLOC) -#define ZMALLOC_LIB ("tcmalloc-" __xstr(TC_VERSION_MAJOR) "." __xstr(TC_VERSION_MINOR)) -#include <google/tcmalloc.h> -#if (TC_VERSION_MAJOR == 1 && TC_VERSION_MINOR >= 6) || (TC_VERSION_MAJOR > 1) -#define HAVE_MALLOC_SIZE 1 -#define zmalloc_size(p) tc_malloc_size(p) -#else -#error "Newer version of tcmalloc required" -#endif - -#elif defined(USE_JEMALLOC) -#define ZMALLOC_LIB ("jemalloc-" __xstr(JEMALLOC_VERSION_MAJOR) "." __xstr(JEMALLOC_VERSION_MINOR) "." __xstr(JEMALLOC_VERSION_BUGFIX)) -#include <jemalloc/jemalloc.h> -#if (JEMALLOC_VERSION_MAJOR == 2 && JEMALLOC_VERSION_MINOR >= 1) || (JEMALLOC_VERSION_MAJOR > 2) -#define HAVE_MALLOC_SIZE 1 -#define zmalloc_size(p) je_malloc_usable_size(p) -#else -#error "Newer version of jemalloc required" -#endif - -#elif defined(__APPLE__) -#include <malloc/malloc.h> -#define HAVE_MALLOC_SIZE 1 -#define zmalloc_size(p) malloc_size(p) -#endif - -/* On native libc implementations, we should still do our best to provide a - * HAVE_MALLOC_SIZE capability. This can be set explicitly as well: - * - * NO_MALLOC_USABLE_SIZE disables it on all platforms, even if they are - * known to support it. - * USE_MALLOC_USABLE_SIZE forces use of malloc_usable_size() regardless - * of platform. - */ -#ifndef ZMALLOC_LIB -#define ZMALLOC_LIB "libc" - -#if !defined(NO_MALLOC_USABLE_SIZE) && \ - (defined(__GLIBC__) || defined(__FreeBSD__) || \ - defined(__DragonFly__) || defined(__HAIKU__) || \ - defined(USE_MALLOC_USABLE_SIZE)) - -/* Includes for malloc_usable_size() */ -#ifdef __FreeBSD__ -#include <malloc_np.h> -#else -#ifndef _GNU_SOURCE -#define _GNU_SOURCE -#endif -#include <malloc.h> -#endif - -#define HAVE_MALLOC_SIZE 1 -#define zmalloc_size(p) malloc_usable_size(p) - -#endif -#endif - -/* We can enable the Redis defrag capabilities only if we are using Jemalloc - * and the version used is our special version modified for Redis having - * the ability to return per-allocation fragmentation hints. */ -#if (defined(USE_JEMALLOC) && defined(JEMALLOC_FRAG_HINT)) || defined(DEBUG_DEFRAG_FORCE) -#define HAVE_DEFRAG -#endif - -/* We can enable allocation with usable size capabilities only if we are using Jemalloc - * and the version used is our special version modified for Redis having - * the ability to return usable size during allocation or deallocation. */ -#if defined(USE_JEMALLOC) && defined(JEMALLOC_ALLOC_WITH_USIZE) -#define HAVE_ALLOC_WITH_USIZE -#endif - -#include <time.h> - -/* 'noinline' attribute is intended to prevent the `-Wstringop-overread` warning - * when using gcc-12 later with LTO enabled. It may be removed once the - * bug[https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96503] is fixed. */ -__attribute__((malloc,alloc_size(1),noinline)) void *zmalloc(size_t size); -__attribute__((malloc,alloc_size(1),noinline)) void *zcalloc(size_t size); -__attribute__((malloc,alloc_size(1,2),noinline)) void *zcalloc_num(size_t num, size_t size); -__attribute__((alloc_size(2),noinline)) void *zrealloc(void *ptr, size_t size); -__attribute__((malloc,alloc_size(1),noinline)) void *ztrymalloc(size_t size); -__attribute__((malloc,alloc_size(1),noinline)) void *ztrycalloc(size_t size); -__attribute__((alloc_size(2),noinline)) void *ztryrealloc(void *ptr, size_t size); -void zfree(void *ptr); -void *zmalloc_usable(size_t size, size_t *usable); -void *zcalloc_usable(size_t size, size_t *usable); -void *zrealloc_usable(void *ptr, size_t size, size_t *usable, size_t *old_usable); -void *ztrymalloc_usable(size_t size, size_t *usable); -void *ztrycalloc_usable(size_t size, size_t *usable); -void *ztryrealloc_usable(void *ptr, size_t size, size_t *usable, size_t *old_usable); -void zfree_usable(void *ptr, size_t *usable); -__attribute__((malloc)) char *zstrdup(const char *s); -__attribute__((malloc)) char *zstrdup_usable(const char *s, size_t *usable); -size_t zmalloc_used_memory(void); -size_t zmalloc_get_peak_memory(void); -time_t zmalloc_get_peak_memory_time(void); -void zmalloc_set_oom_handler(void (*oom_handler)(size_t)); -size_t zmalloc_get_rss(void); -int zmalloc_get_allocator_info(int refresh_stats, size_t *allocated, size_t *active, size_t *resident, - size_t *retained, size_t *muzzy, size_t *frag_smallbins_bytes); -int zmalloc_get_allocator_info_by_arena(unsigned int arena, int refresh_stats, size_t *allocated, - size_t *active, size_t *resident, size_t *frag_smallbins_bytes); -void set_jemalloc_bg_thread(int enable); -int jemalloc_purge(void); -size_t zmalloc_get_private_dirty(long pid); -size_t zmalloc_get_smap_bytes_by_field(char *field, long pid); -size_t zmalloc_get_memory_size(void); -void zlibc_free(void *ptr); -void zmadvise_dontneed(void *ptr); - -#if defined(USE_JEMALLOC) -void *zmalloc_with_flags(size_t size, int flags); -void *zrealloc_with_flags(void *ptr, size_t size, int flags); -void zfree_with_flags(void *ptr, int flags); -#endif - -#if (defined(USE_JEMALLOC) && defined(HAVE_DEFRAG)) -void zfree_no_tcache(void *ptr); -__attribute__((malloc)) void *zmalloc_no_tcache(size_t size); -#endif - -#ifndef HAVE_MALLOC_SIZE -size_t zmalloc_size(void *ptr); -size_t zmalloc_usable_size(void *ptr); -#else -/* If we use 'zmalloc_usable_size()' to obtain additional available memory size - * and manipulate it, we need to call 'extend_to_usable()' afterwards to ensure - * the compiler recognizes this extra memory. However, if we use the pointer - * obtained from z[*]_usable() family functions, there is no need for this step. */ -#define zmalloc_usable_size(p) zmalloc_size(p) - -/* derived from https://github.com/systemd/systemd/pull/25688 - * We use zmalloc_usable_size() everywhere to use memory blocks, but that is an abuse since the - * malloc_usable_size() isn't meant for this kind of use, it is for diagnostics only. That is also why the - * behavior is flaky when built with _FORTIFY_SOURCE, the compiler can sense that we reach outside - * the allocated block and SIGABRT. - * We use a dummy allocator function to tell the compiler that the new size of ptr is newsize. - * The implementation returns the pointer as is; the only reason for its existence is as a conduit for the - * alloc_size attribute. This cannot be a static inline because gcc then loses the attributes on the function. - * See: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=96503 */ -__attribute__((alloc_size(2),noinline)) void *extend_to_usable(void *ptr, size_t size); -#endif - -int get_proc_stat_ll(int i, long long *res); - -#ifdef REDIS_TEST -int zmalloc_test(int argc, char **argv, int flags); -#endif - -#endif /* __ZMALLOC_H */ |
