609ae595f0
Add the "arenas.extend" mallctl, so that it is possible to create new
arenas that are outside the set that jemalloc automatically multiplexes
threads onto.
Add the ALLOCM_ARENA() flag for {,r,d}allocm(), so that it is possible
to explicitly allocate from a particular arena.
Add the "opt.dss" mallctl, which controls the default precedence of dss
allocation relative to mmap allocation.
Add the "arena.<i>.dss" mallctl, which makes it possible to set the
default dss precedence on a per arena or global basis.
Add the "arena.<i>.purge" mallctl, which obsoletes "arenas.purge".
Add the "stats.arenas.<i>.dss" mallctl.
158 lines
5.1 KiB
C
158 lines
5.1 KiB
C
#ifndef JEMALLOC_H_
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#define JEMALLOC_H_
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <limits.h>
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#include <strings.h>
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#define JEMALLOC_VERSION "@jemalloc_version@"
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#define JEMALLOC_VERSION_MAJOR @jemalloc_version_major@
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#define JEMALLOC_VERSION_MINOR @jemalloc_version_minor@
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#define JEMALLOC_VERSION_BUGFIX @jemalloc_version_bugfix@
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#define JEMALLOC_VERSION_NREV @jemalloc_version_nrev@
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#define JEMALLOC_VERSION_GID "@jemalloc_version_gid@"
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#include "jemalloc_defs@install_suffix@.h"
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#ifdef JEMALLOC_EXPERIMENTAL
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#define ALLOCM_LG_ALIGN(la) (la)
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#if LG_SIZEOF_PTR == 2
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#define ALLOCM_ALIGN(a) (ffs(a)-1)
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#else
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#define ALLOCM_ALIGN(a) ((a < (size_t)INT_MAX) ? ffs(a)-1 : ffs(a>>32)+31)
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#endif
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#define ALLOCM_ZERO ((int)0x40)
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#define ALLOCM_NO_MOVE ((int)0x80)
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/* Bias arena index bits so that 0 encodes "ALLOCM_ARENA() unspecified". */
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#define ALLOCM_ARENA(a) ((int)(((a)+1) << 8))
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#define ALLOCM_SUCCESS 0
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#define ALLOCM_ERR_OOM 1
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#define ALLOCM_ERR_NOT_MOVED 2
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#endif
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/*
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* The je_ prefix on the following public symbol declarations is an artifact of
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* namespace management, and should be omitted in application code unless
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* JEMALLOC_NO_DEMANGLE is defined (see below).
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*/
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extern JEMALLOC_EXPORT const char *je_malloc_conf;
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extern JEMALLOC_EXPORT void (*je_malloc_message)(void *cbopaque,
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const char *s);
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JEMALLOC_EXPORT void *je_malloc(size_t size) JEMALLOC_ATTR(malloc);
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JEMALLOC_EXPORT void *je_calloc(size_t num, size_t size)
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JEMALLOC_ATTR(malloc);
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JEMALLOC_EXPORT int je_posix_memalign(void **memptr, size_t alignment,
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size_t size) JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT void *je_aligned_alloc(size_t alignment, size_t size)
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JEMALLOC_ATTR(malloc);
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JEMALLOC_EXPORT void *je_realloc(void *ptr, size_t size);
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JEMALLOC_EXPORT void je_free(void *ptr);
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#ifdef JEMALLOC_OVERRIDE_MEMALIGN
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JEMALLOC_EXPORT void * je_memalign(size_t alignment, size_t size)
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JEMALLOC_ATTR(malloc);
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#endif
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#ifdef JEMALLOC_OVERRIDE_VALLOC
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JEMALLOC_EXPORT void * je_valloc(size_t size) JEMALLOC_ATTR(malloc);
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#endif
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JEMALLOC_EXPORT size_t je_malloc_usable_size(
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JEMALLOC_USABLE_SIZE_CONST void *ptr);
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JEMALLOC_EXPORT void je_malloc_stats_print(void (*write_cb)(void *,
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const char *), void *je_cbopaque, const char *opts);
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JEMALLOC_EXPORT int je_mallctl(const char *name, void *oldp,
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size_t *oldlenp, void *newp, size_t newlen);
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JEMALLOC_EXPORT int je_mallctlnametomib(const char *name, size_t *mibp,
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size_t *miblenp);
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JEMALLOC_EXPORT int je_mallctlbymib(const size_t *mib, size_t miblen,
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void *oldp, size_t *oldlenp, void *newp, size_t newlen);
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#ifdef JEMALLOC_EXPERIMENTAL
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JEMALLOC_EXPORT int je_allocm(void **ptr, size_t *rsize, size_t size,
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int flags) JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int je_rallocm(void **ptr, size_t *rsize, size_t size,
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size_t extra, int flags) JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int je_sallocm(const void *ptr, size_t *rsize, int flags)
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JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int je_dallocm(void *ptr, int flags)
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JEMALLOC_ATTR(nonnull(1));
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JEMALLOC_EXPORT int je_nallocm(size_t *rsize, size_t size, int flags);
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#endif
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/*
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* By default application code must explicitly refer to mangled symbol names,
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* so that it is possible to use jemalloc in conjunction with another allocator
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* in the same application. Define JEMALLOC_MANGLE in order to cause automatic
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* name mangling that matches the API prefixing that happened as a result of
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* --with-mangling and/or --with-jemalloc-prefix configuration settings.
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*/
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#ifdef JEMALLOC_MANGLE
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#ifndef JEMALLOC_NO_DEMANGLE
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#define JEMALLOC_NO_DEMANGLE
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#endif
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#define malloc_conf je_malloc_conf
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#define malloc_message je_malloc_message
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#define malloc je_malloc
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#define calloc je_calloc
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#define posix_memalign je_posix_memalign
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#define aligned_alloc je_aligned_alloc
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#define realloc je_realloc
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#define free je_free
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#define malloc_usable_size je_malloc_usable_size
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#define malloc_stats_print je_malloc_stats_print
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#define mallctl je_mallctl
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#define mallctlnametomib je_mallctlnametomib
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#define mallctlbymib je_mallctlbymib
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#define memalign je_memalign
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#define valloc je_valloc
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#ifdef JEMALLOC_EXPERIMENTAL
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#define allocm je_allocm
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#define rallocm je_rallocm
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#define sallocm je_sallocm
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#define dallocm je_dallocm
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#define nallocm je_nallocm
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#endif
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#endif
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/*
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* The je_* macros can be used as stable alternative names for the public
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* jemalloc API if JEMALLOC_NO_DEMANGLE is defined. This is primarily meant
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* for use in jemalloc itself, but it can be used by application code to
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* provide isolation from the name mangling specified via --with-mangling
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* and/or --with-jemalloc-prefix.
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*/
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#ifndef JEMALLOC_NO_DEMANGLE
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#undef je_malloc_conf
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#undef je_malloc_message
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#undef je_malloc
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#undef je_calloc
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#undef je_posix_memalign
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#undef je_aligned_alloc
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#undef je_realloc
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#undef je_free
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#undef je_malloc_usable_size
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#undef je_malloc_stats_print
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#undef je_mallctl
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#undef je_mallctlnametomib
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#undef je_mallctlbymib
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#undef je_memalign
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#undef je_valloc
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#ifdef JEMALLOC_EXPERIMENTAL
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#undef je_allocm
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#undef je_rallocm
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#undef je_sallocm
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#undef je_dallocm
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#undef je_nallocm
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#endif
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#endif
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#ifdef __cplusplus
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};
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#endif
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#endif /* JEMALLOC_H_ */
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