#ifndef JEMALLOC_INTERNAL_DEFS_H_

#define JEMALLOC_INTERNAL_DEFS_H_

/*

 * If JEMALLOC_PREFIX is defined via --with-jemalloc-prefix, it will cause all

 * public APIs to be prefixed.  This makes it possible, with some care, to use

 * multiple allocators simultaneously.

 */

#undef JEMALLOC_PREFIX

#undef JEMALLOC_CPREFIX

/*

 * Define overrides for non-standard allocator-related functions if they are

 * present on the system.

 */

#undef JEMALLOC_OVERRIDE___LIBC_CALLOC

#undef JEMALLOC_OVERRIDE___LIBC_FREE

#undef JEMALLOC_OVERRIDE___LIBC_MALLOC

#undef JEMALLOC_OVERRIDE___LIBC_MEMALIGN

#undef JEMALLOC_OVERRIDE___LIBC_REALLOC

#undef JEMALLOC_OVERRIDE___LIBC_VALLOC

#undef JEMALLOC_OVERRIDE___POSIX_MEMALIGN

/*

 * JEMALLOC_PRIVATE_NAMESPACE is used as a prefix for all library-private APIs.

 * For shared libraries, symbol visibility mechanisms prevent these symbols

 * from being exported, but for static libraries, naming collisions are a real

 * possibility.

 */

#undef JEMALLOC_PRIVATE_NAMESPACE

/*

 * Hyper-threaded CPUs may need a special instruction inside spin loops in

 * order to yield to another virtual CPU.

 */

#undef CPU_SPINWAIT

/* 1 if CPU_SPINWAIT is defined, 0 otherwise. */

#undef HAVE_CPU_SPINWAIT

/*

 * Number of significant bits in virtual addresses.  This may be less than the

 * total number of bits in a pointer, e.g. on x64, for which the uppermost 16

 * bits are the same as bit 47.

 */

#undef LG_VADDR

/* Defined if C11 atomics are available. */

#undef JEMALLOC_C11_ATOMICS

/* Defined if GCC __atomic atomics are available. */

#undef JEMALLOC_GCC_ATOMIC_ATOMICS

/* and the 8-bit variant support. */

#undef JEMALLOC_GCC_U8_ATOMIC_ATOMICS

/* Defined if GCC __sync atomics are available. */

#undef JEMALLOC_GCC_SYNC_ATOMICS

/* and the 8-bit variant support. */

#undef JEMALLOC_GCC_U8_SYNC_ATOMICS

/*

 * Defined if __builtin_clz() and __builtin_clzl() are available.

 */

#undef JEMALLOC_HAVE_BUILTIN_CLZ

/*

 * Defined if os_unfair_lock_*() functions are available, as provided by Darwin.

 */

#undef JEMALLOC_OS_UNFAIR_LOCK

/* Defined if syscall(2) is usable. */

#undef JEMALLOC_USE_SYSCALL

/*

 * Defined if secure_getenv(3) is available.

 */

#undef JEMALLOC_HAVE_SECURE_GETENV

/*

 * Defined if issetugid(2) is available.

 */

#undef JEMALLOC_HAVE_ISSETUGID

/* Defined if pthread_atfork(3) is available. */

#undef JEMALLOC_HAVE_PTHREAD_ATFORK

/* Defined if pthread_setname_np(3) is available. */

#undef JEMALLOC_HAVE_PTHREAD_SETNAME_NP

/*

 * Defined if clock_gettime(CLOCK_MONOTONIC_COARSE, ...) is available.

 */

#undef JEMALLOC_HAVE_CLOCK_MONOTONIC_COARSE

/*

 * Defined if clock_gettime(CLOCK_MONOTONIC, ...) is available.

 */

#undef JEMALLOC_HAVE_CLOCK_MONOTONIC

/*

 * Defined if mach_absolute_time() is available.

 */

#undef JEMALLOC_HAVE_MACH_ABSOLUTE_TIME

/*

 * Defined if _malloc_thread_cleanup() exists.  At least in the case of

 * FreeBSD, pthread_key_create() allocates, which if used during malloc

 * bootstrapping will cause recursion into the pthreads library.  Therefore, if

 * _malloc_thread_cleanup() exists, use it as the basis for thread cleanup in

 * malloc_tsd.

 */

#undef JEMALLOC_MALLOC_THREAD_CLEANUP

/*

 * Defined if threaded initialization is known to be safe on this platform.

 * Among other things, it must be possible to initialize a mutex without

 * triggering allocation in order for threaded allocation to be safe.

 */

#undef JEMALLOC_THREADED_INIT

/*

 * Defined if the pthreads implementation defines

 * _pthread_mutex_init_calloc_cb(), in which case the function is used in order

 * to avoid recursive allocation during mutex initialization.

 */

#undef JEMALLOC_MUTEX_INIT_CB

/* Non-empty if the tls_model attribute is supported. */

#undef JEMALLOC_TLS_MODEL

/*

 * JEMALLOC_DEBUG enables assertions and other sanity checks, and disables

 * inline functions.

 */

#undef JEMALLOC_DEBUG

/* JEMALLOC_STATS enables statistics calculation. */

#undef JEMALLOC_STATS

/* JEMALLOC_EXPERIMENTAL_SMALLOCX_API enables experimental smallocx API. */

#undef JEMALLOC_EXPERIMENTAL_SMALLOCX_API

/* JEMALLOC_PROF enables allocation profiling. */

#undef JEMALLOC_PROF

/* Use libunwind for profile backtracing if defined. */

#undef JEMALLOC_PROF_LIBUNWIND

/* Use libgcc for profile backtracing if defined. */

#undef JEMALLOC_PROF_LIBGCC

/* Use gcc intrinsics for profile backtracing if defined. */

#undef JEMALLOC_PROF_GCC

/*

 * JEMALLOC_DSS enables use of sbrk(2) to allocate extents from the data storage

 * segment (DSS).

 */

#undef JEMALLOC_DSS

/* Support memory filling (junk/zero). */

#undef JEMALLOC_FILL

/* Support utrace(2)-based tracing. */

#undef JEMALLOC_UTRACE

/* Support optional abort() on OOM. */

#undef JEMALLOC_XMALLOC

/* Support lazy locking (avoid locking unless a second thread is launched). */

#undef JEMALLOC_LAZY_LOCK

/*

 * Minimum allocation alignment is 2^LG_QUANTUM bytes (ignoring tiny size

 * classes).

 */

#undef LG_QUANTUM

/* One page is 2^LG_PAGE bytes. */

#undef LG_PAGE

/*

 * One huge page is 2^LG_HUGEPAGE bytes.  Note that this is defined even if the

 * system does not explicitly support huge pages; system calls that require

 * explicit huge page support are separately configured.

 */

#undef LG_HUGEPAGE

/*

 * If defined, adjacent virtual memory mappings with identical attributes

 * automatically coalesce, and they fragment when changes are made to subranges.

 * This is the normal order of things for mmap()/munmap(), but on Windows

 * VirtualAlloc()/VirtualFree() operations must be precisely matched, i.e.

 * mappings do *not* coalesce/fragment.

 */

#undef JEMALLOC_MAPS_COALESCE

/*

 * If defined, retain memory for later reuse by default rather than using e.g.

 * munmap() to unmap freed extents.  This is enabled on 64-bit Linux because

 * common sequences of mmap()/munmap() calls will cause virtual memory map

 * holes.

 */

#undef JEMALLOC_RETAIN

/* TLS is used to map arenas and magazine caches to threads. */

#undef JEMALLOC_TLS

/*

 * Used to mark unreachable code to quiet "end of non-void" compiler warnings.

 * Don't use this directly; instead use unreachable() from util.h

 */

#undef JEMALLOC_INTERNAL_UNREACHABLE

/*

 * ffs*() functions to use for bitmapping.  Don't use these directly; instead,

 * use ffs_*() from util.h.

 */

#undef JEMALLOC_INTERNAL_FFSLL

#undef JEMALLOC_INTERNAL_FFSL

#undef JEMALLOC_INTERNAL_FFS

/*

 * popcount*() functions to use for bitmapping.

 */

#undef JEMALLOC_INTERNAL_POPCOUNTL

#undef JEMALLOC_INTERNAL_POPCOUNT

/*

 * If defined, explicitly attempt to more uniformly distribute large allocation

 * pointer alignments across all cache indices.

 */

#undef JEMALLOC_CACHE_OBLIVIOUS

/*

 * If defined, enable logging facilities.  We make this a configure option to

 * avoid taking extra branches everywhere.

 */

#undef JEMALLOC_LOG

/*

 * If defined, use readlinkat() (instead of readlink()) to follow

 * /etc/malloc_conf.

 */

#undef JEMALLOC_READLINKAT

/*

 * Darwin (OS X) uses zones to work around Mach-O symbol override shortcomings.

 */

#undef JEMALLOC_ZONE

/*

 * Methods for determining whether the OS overcommits.

 * JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY: Linux's

 *                                         /proc/sys/vm.overcommit_memory file.

 * JEMALLOC_SYSCTL_VM_OVERCOMMIT: FreeBSD's vm.overcommit sysctl.

 */

#undef JEMALLOC_SYSCTL_VM_OVERCOMMIT

#undef JEMALLOC_PROC_SYS_VM_OVERCOMMIT_MEMORY

/* Defined if madvise(2) is available. */

#undef JEMALLOC_HAVE_MADVISE

/*

 * Defined if transparent huge pages are supported via the MADV_[NO]HUGEPAGE

 * arguments to madvise(2).

 */

#undef JEMALLOC_HAVE_MADVISE_HUGE

/*

 * Methods for purging unused pages differ between operating systems.

 *

 *   madvise(..., MADV_FREE) : This marks pages as being unused, such that they

 *                             will be discarded rather than swapped out.

 *   madvise(..., MADV_DONTNEED) : If JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS is

 *                                 defined, this immediately discards pages,

 *                                 such that new pages will be demand-zeroed if

 *                                 the address region is later touched;

 *                                 otherwise this behaves similarly to

 *                                 MADV_FREE, though typically with higher

 *                                 system overhead.

 */

#undef JEMALLOC_PURGE_MADVISE_FREE

#undef JEMALLOC_PURGE_MADVISE_DONTNEED

#undef JEMALLOC_PURGE_MADVISE_DONTNEED_ZEROS

/* Defined if madvise(2) is available but MADV_FREE is not (x86 Linux only). */

#undef JEMALLOC_DEFINE_MADVISE_FREE

/*

 * Defined if MADV_DO[NT]DUMP is supported as an argument to madvise.

 */

#undef JEMALLOC_MADVISE_DONTDUMP

/*

 * Defined if transparent huge pages (THPs) are supported via the

 * MADV_[NO]HUGEPAGE arguments to madvise(2), and THP support is enabled.

 */

#undef JEMALLOC_THP

/* Define if operating system has alloca.h header. */

#undef JEMALLOC_HAS_ALLOCA_H

/* C99 restrict keyword supported. */

#undef JEMALLOC_HAS_RESTRICT

/* For use by hash code. */

#undef JEMALLOC_BIG_ENDIAN

/* sizeof(int) == 2^LG_SIZEOF_INT. */

#undef LG_SIZEOF_INT

/* sizeof(long) == 2^LG_SIZEOF_LONG. */

#undef LG_SIZEOF_LONG

/* sizeof(long long) == 2^LG_SIZEOF_LONG_LONG. */

#undef LG_SIZEOF_LONG_LONG

/* sizeof(intmax_t) == 2^LG_SIZEOF_INTMAX_T. */

#undef LG_SIZEOF_INTMAX_T

/* glibc malloc hooks (__malloc_hook, __realloc_hook, __free_hook). */

#undef JEMALLOC_GLIBC_MALLOC_HOOK

/* glibc memalign hook. */

#undef JEMALLOC_GLIBC_MEMALIGN_HOOK

/* pthread support */

#undef JEMALLOC_HAVE_PTHREAD

/* dlsym() support */

#undef JEMALLOC_HAVE_DLSYM

/* Adaptive mutex support in pthreads. */

#undef JEMALLOC_HAVE_PTHREAD_MUTEX_ADAPTIVE_NP

/* GNU specific sched_getcpu support */

#undef JEMALLOC_HAVE_SCHED_GETCPU

/* GNU specific sched_setaffinity support */

#undef JEMALLOC_HAVE_SCHED_SETAFFINITY

/*

 * If defined, all the features necessary for background threads are present.

 */

#undef JEMALLOC_BACKGROUND_THREAD

/*

 * If defined, jemalloc symbols are not exported (doesn't work when

 * JEMALLOC_PREFIX is not defined).

 */

#undef JEMALLOC_EXPORT

/* config.malloc_conf options string. */

#undef JEMALLOC_CONFIG_MALLOC_CONF

/* If defined, jemalloc takes the malloc/free/etc. symbol names. */

#undef JEMALLOC_IS_MALLOC

/*

 * Defined if strerror_r returns char * if _GNU_SOURCE is defined.

 */

#undef JEMALLOC_STRERROR_R_RETURNS_CHAR_WITH_GNU_SOURCE

/* Performs additional safety checks when defined. */

#undef JEMALLOC_OPT_SAFETY_CHECKS

#endif /* JEMALLOC_INTERNAL_DEFS_H_ */