1 #ifndef JEMALLOC_H_ 2 #define JEMALLOC_H_ 3 #ifdef __cplusplus 4 extern "C" { 5 #endif 6 7 /* Defined if __attribute__((...)) syntax is supported. */ 8 #define JEMALLOC_HAVE_ATTR 9 10 /* Defined if alloc_size attribute is supported. */ 11 #define JEMALLOC_HAVE_ATTR_ALLOC_SIZE 12 13 /* Defined if format(gnu_printf, ...) attribute is supported. */ 14 /* #undef JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF */ 15 16 /* Defined if format(printf, ...) attribute is supported. */ 17 #define JEMALLOC_HAVE_ATTR_FORMAT_PRINTF 18 19 /* 20 * Define overrides for non-standard allocator-related functions if they are 21 * present on the system. 22 */ 23 #define JEMALLOC_OVERRIDE_MEMALIGN 24 #define JEMALLOC_OVERRIDE_VALLOC 25 26 /* 27 * At least Linux omits the "const" in: 28 * 29 * size_t malloc_usable_size(const void *ptr); 30 * 31 * Match the operating system's prototype. 32 */ 33 #define JEMALLOC_USABLE_SIZE_CONST const 34 35 /* 36 * If defined, specify throw() for the public function prototypes when compiling 37 * with C++. The only justification for this is to match the prototypes that 38 * glibc defines. 39 */ 40 /* #undef JEMALLOC_USE_CXX_THROW */ 41 42 #ifdef _MSC_VER 43 # ifdef _WIN64 44 # define LG_SIZEOF_PTR_WIN 3 45 # else 46 # define LG_SIZEOF_PTR_WIN 2 47 # endif 48 #endif 49 50 /* sizeof(void *) == 2^LG_SIZEOF_PTR. */ 51 #if defined(__LP64__) 52 #define LG_SIZEOF_PTR 3 53 #else 54 #define LG_SIZEOF_PTR 2 55 #endif 56 57 /* 58 * Name mangling for public symbols is controlled by --with-mangling and 59 * --with-jemalloc-prefix. With default settings the je_ prefix is stripped by 60 * these macro definitions. 61 */ 62 #include "jemalloc_rename.h" 63 64 #include <stdlib.h> 65 #include <stdbool.h> 66 #include <stdint.h> 67 #include <limits.h> 68 #include <strings.h> 69 70 #define JEMALLOC_VERSION "5.1.0-0-g61efbda7098de6fe64c362d309824864308c36d4" 71 #define JEMALLOC_VERSION_MAJOR 5 72 #define JEMALLOC_VERSION_MINOR 1 73 #define JEMALLOC_VERSION_BUGFIX 0 74 #define JEMALLOC_VERSION_NREV 0 75 #define JEMALLOC_VERSION_GID "61efbda7098de6fe64c362d309824864308c36d4" 76 77 #define MALLOCX_LG_ALIGN(la) ((int)(la)) 78 #if LG_SIZEOF_PTR == 2 79 # define MALLOCX_ALIGN(a) ((int)(ffs((int)(a))-1)) 80 #else 81 # define MALLOCX_ALIGN(a) \ 82 ((int)(((size_t)(a) < (size_t)INT_MAX) ? ffs((int)(a))-1 : \ 83 ffs((int)(((size_t)(a))>>32))+31)) 84 #endif 85 #define MALLOCX_ZERO ((int)0x40) 86 /* 87 * Bias tcache index bits so that 0 encodes "automatic tcache management", and 1 88 * encodes MALLOCX_TCACHE_NONE. 89 */ 90 #define MALLOCX_TCACHE(tc) ((int)(((tc)+2) << 8)) 91 #define MALLOCX_TCACHE_NONE MALLOCX_TCACHE(-1) 92 /* 93 * Bias arena index bits so that 0 encodes "use an automatically chosen arena". 94 */ 95 #define MALLOCX_ARENA(a) ((((int)(a))+1) << 20) 96 97 /* 98 * Use as arena index in "arena.<i>.{purge,decay,dss}" and 99 * "stats.arenas.<i>.*" mallctl interfaces to select all arenas. This 100 * definition is intentionally specified in raw decimal format to support 101 * cpp-based string concatenation, e.g. 102 * 103 * #define STRINGIFY_HELPER(x) #x 104 * #define STRINGIFY(x) STRINGIFY_HELPER(x) 105 * 106 * mallctl("arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".purge", NULL, NULL, NULL, 107 * 0); 108 */ 109 #define MALLCTL_ARENAS_ALL 4096 110 /* 111 * Use as arena index in "stats.arenas.<i>.*" mallctl interfaces to select 112 * destroyed arenas. 113 */ 114 #define MALLCTL_ARENAS_DESTROYED 4097 115 116 #if defined(__cplusplus) && defined(JEMALLOC_USE_CXX_THROW) 117 # define JEMALLOC_CXX_THROW throw() 118 #else 119 # define JEMALLOC_CXX_THROW 120 #endif 121 122 #if defined(_MSC_VER) 123 # define JEMALLOC_ATTR(s) 124 # define JEMALLOC_ALIGNED(s) __declspec(align(s)) 125 # define JEMALLOC_ALLOC_SIZE(s) 126 # define JEMALLOC_ALLOC_SIZE2(s1, s2) 127 # ifndef JEMALLOC_EXPORT 128 # ifdef DLLEXPORT 129 # define JEMALLOC_EXPORT __declspec(dllexport) 130 # else 131 # define JEMALLOC_EXPORT __declspec(dllimport) 132 # endif 133 # endif 134 # define JEMALLOC_FORMAT_PRINTF(s, i) 135 # define JEMALLOC_NOINLINE __declspec(noinline) 136 # ifdef __cplusplus 137 # define JEMALLOC_NOTHROW __declspec(nothrow) 138 # else 139 # define JEMALLOC_NOTHROW 140 # endif 141 # define JEMALLOC_SECTION(s) __declspec(allocate(s)) 142 # define JEMALLOC_RESTRICT_RETURN __declspec(restrict) 143 # if _MSC_VER >= 1900 && !defined(__EDG__) 144 # define JEMALLOC_ALLOCATOR __declspec(allocator) 145 # else 146 # define JEMALLOC_ALLOCATOR 147 # endif 148 #elif defined(JEMALLOC_HAVE_ATTR) 149 # define JEMALLOC_ATTR(s) __attribute__((s)) 150 # define JEMALLOC_ALIGNED(s) JEMALLOC_ATTR(aligned(s)) 151 # ifdef JEMALLOC_HAVE_ATTR_ALLOC_SIZE 152 # define JEMALLOC_ALLOC_SIZE(s) JEMALLOC_ATTR(alloc_size(s)) 153 # define JEMALLOC_ALLOC_SIZE2(s1, s2) JEMALLOC_ATTR(alloc_size(s1, s2)) 154 # else 155 # define JEMALLOC_ALLOC_SIZE(s) 156 # define JEMALLOC_ALLOC_SIZE2(s1, s2) 157 # endif 158 # ifndef JEMALLOC_EXPORT 159 # define JEMALLOC_EXPORT JEMALLOC_ATTR(visibility("default")) 160 # endif 161 # ifdef JEMALLOC_HAVE_ATTR_FORMAT_GNU_PRINTF 162 # define JEMALLOC_FORMAT_PRINTF(s, i) JEMALLOC_ATTR(format(gnu_printf, s, i)) 163 # elif defined(JEMALLOC_HAVE_ATTR_FORMAT_PRINTF) 164 # define JEMALLOC_FORMAT_PRINTF(s, i) JEMALLOC_ATTR(format(printf, s, i)) 165 # else 166 # define JEMALLOC_FORMAT_PRINTF(s, i) 167 # endif 168 # define JEMALLOC_NOINLINE JEMALLOC_ATTR(noinline) 169 # define JEMALLOC_NOTHROW JEMALLOC_ATTR(nothrow) 170 # define JEMALLOC_SECTION(s) JEMALLOC_ATTR(section(s)) 171 # define JEMALLOC_RESTRICT_RETURN 172 # define JEMALLOC_ALLOCATOR 173 #else 174 # define JEMALLOC_ATTR(s) 175 # define JEMALLOC_ALIGNED(s) 176 # define JEMALLOC_ALLOC_SIZE(s) 177 # define JEMALLOC_ALLOC_SIZE2(s1, s2) 178 # define JEMALLOC_EXPORT 179 # define JEMALLOC_FORMAT_PRINTF(s, i) 180 # define JEMALLOC_NOINLINE 181 # define JEMALLOC_NOTHROW 182 # define JEMALLOC_SECTION(s) 183 # define JEMALLOC_RESTRICT_RETURN 184 # define JEMALLOC_ALLOCATOR 185 #endif 186 187 /* 188 * The je_ prefix on the following public symbol declarations is an artifact 189 * of namespace management, and should be omitted in application code unless 190 * JEMALLOC_NO_DEMANGLE is defined (see jemalloc_mangle.h). 191 */ 192 extern JEMALLOC_EXPORT const char *je_malloc_conf; 193 extern JEMALLOC_EXPORT void (*je_malloc_message)(void *cbopaque, 194 const char *s); 195 196 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 197 void JEMALLOC_NOTHROW *je_malloc(size_t size) 198 JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE(1); 199 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 200 void JEMALLOC_NOTHROW *je_calloc(size_t num, size_t size) 201 JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE2(1, 2); 202 JEMALLOC_EXPORT int JEMALLOC_NOTHROW je_posix_memalign(void **memptr, 203 size_t alignment, size_t size) JEMALLOC_CXX_THROW JEMALLOC_ATTR(nonnull(1)); 204 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 205 void JEMALLOC_NOTHROW *je_aligned_alloc(size_t alignment, 206 size_t size) JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc) 207 JEMALLOC_ALLOC_SIZE(2); 208 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 209 void JEMALLOC_NOTHROW *je_realloc(void *ptr, size_t size) 210 JEMALLOC_CXX_THROW JEMALLOC_ALLOC_SIZE(2); 211 JEMALLOC_EXPORT void JEMALLOC_NOTHROW je_free(void *ptr) 212 JEMALLOC_CXX_THROW; 213 214 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 215 void JEMALLOC_NOTHROW *je_mallocx(size_t size, int flags) 216 JEMALLOC_ATTR(malloc) JEMALLOC_ALLOC_SIZE(1); 217 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 218 void JEMALLOC_NOTHROW *je_rallocx(void *ptr, size_t size, 219 int flags) JEMALLOC_ALLOC_SIZE(2); 220 JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW je_xallocx(void *ptr, size_t size, 221 size_t extra, int flags); 222 JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW je_sallocx(const void *ptr, 223 int flags) JEMALLOC_ATTR(pure); 224 JEMALLOC_EXPORT void JEMALLOC_NOTHROW je_dallocx(void *ptr, int flags); 225 JEMALLOC_EXPORT void JEMALLOC_NOTHROW je_sdallocx(void *ptr, size_t size, 226 int flags); 227 JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW je_nallocx(size_t size, int flags) 228 JEMALLOC_ATTR(pure); 229 230 JEMALLOC_EXPORT int JEMALLOC_NOTHROW je_mallctl(const char *name, 231 void *oldp, size_t *oldlenp, void *newp, size_t newlen); 232 JEMALLOC_EXPORT int JEMALLOC_NOTHROW je_mallctlnametomib(const char *name, 233 size_t *mibp, size_t *miblenp); 234 JEMALLOC_EXPORT int JEMALLOC_NOTHROW je_mallctlbymib(const size_t *mib, 235 size_t miblen, void *oldp, size_t *oldlenp, void *newp, size_t newlen); 236 JEMALLOC_EXPORT void JEMALLOC_NOTHROW je_malloc_stats_print( 237 void (*write_cb)(void *, const char *), void *je_cbopaque, 238 const char *opts); 239 JEMALLOC_EXPORT size_t JEMALLOC_NOTHROW je_malloc_usable_size( 240 JEMALLOC_USABLE_SIZE_CONST void *ptr) JEMALLOC_CXX_THROW; 241 242 #ifdef JEMALLOC_OVERRIDE_MEMALIGN 243 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 244 void JEMALLOC_NOTHROW *je_memalign(size_t alignment, size_t size) 245 JEMALLOC_CXX_THROW JEMALLOC_ATTR(malloc); 246 #endif 247 248 #ifdef JEMALLOC_OVERRIDE_VALLOC 249 JEMALLOC_EXPORT JEMALLOC_ALLOCATOR JEMALLOC_RESTRICT_RETURN 250 void JEMALLOC_NOTHROW *je_valloc(size_t size) JEMALLOC_CXX_THROW 251 JEMALLOC_ATTR(malloc); 252 #endif 253 254 typedef struct extent_hooks_s extent_hooks_t; 255 256 /* 257 * void * 258 * extent_alloc(extent_hooks_t *extent_hooks, void *new_addr, size_t size, 259 * size_t alignment, bool *zero, bool *commit, unsigned arena_ind); 260 */ 261 typedef void *(extent_alloc_t)(extent_hooks_t *, void *, size_t, size_t, bool *, 262 bool *, unsigned); 263 264 /* 265 * bool 266 * extent_dalloc(extent_hooks_t *extent_hooks, void *addr, size_t size, 267 * bool committed, unsigned arena_ind); 268 */ 269 typedef bool (extent_dalloc_t)(extent_hooks_t *, void *, size_t, bool, 270 unsigned); 271 272 /* 273 * void 274 * extent_destroy(extent_hooks_t *extent_hooks, void *addr, size_t size, 275 * bool committed, unsigned arena_ind); 276 */ 277 typedef void (extent_destroy_t)(extent_hooks_t *, void *, size_t, bool, 278 unsigned); 279 280 /* 281 * bool 282 * extent_commit(extent_hooks_t *extent_hooks, void *addr, size_t size, 283 * size_t offset, size_t length, unsigned arena_ind); 284 */ 285 typedef bool (extent_commit_t)(extent_hooks_t *, void *, size_t, size_t, size_t, 286 unsigned); 287 288 /* 289 * bool 290 * extent_decommit(extent_hooks_t *extent_hooks, void *addr, size_t size, 291 * size_t offset, size_t length, unsigned arena_ind); 292 */ 293 typedef bool (extent_decommit_t)(extent_hooks_t *, void *, size_t, size_t, 294 size_t, unsigned); 295 296 /* 297 * bool 298 * extent_purge(extent_hooks_t *extent_hooks, void *addr, size_t size, 299 * size_t offset, size_t length, unsigned arena_ind); 300 */ 301 typedef bool (extent_purge_t)(extent_hooks_t *, void *, size_t, size_t, size_t, 302 unsigned); 303 304 /* 305 * bool 306 * extent_split(extent_hooks_t *extent_hooks, void *addr, size_t size, 307 * size_t size_a, size_t size_b, bool committed, unsigned arena_ind); 308 */ 309 typedef bool (extent_split_t)(extent_hooks_t *, void *, size_t, size_t, size_t, 310 bool, unsigned); 311 312 /* 313 * bool 314 * extent_merge(extent_hooks_t *extent_hooks, void *addr_a, size_t size_a, 315 * void *addr_b, size_t size_b, bool committed, unsigned arena_ind); 316 */ 317 typedef bool (extent_merge_t)(extent_hooks_t *, void *, size_t, void *, size_t, 318 bool, unsigned); 319 320 struct extent_hooks_s { 321 extent_alloc_t *alloc; 322 extent_dalloc_t *dalloc; 323 extent_destroy_t *destroy; 324 extent_commit_t *commit; 325 extent_decommit_t *decommit; 326 extent_purge_t *purge_lazy; 327 extent_purge_t *purge_forced; 328 extent_split_t *split; 329 extent_merge_t *merge; 330 }; 331 332 /* 333 * By default application code must explicitly refer to mangled symbol names, 334 * so that it is possible to use jemalloc in conjunction with another allocator 335 * in the same application. Define JEMALLOC_MANGLE in order to cause automatic 336 * name mangling that matches the API prefixing that happened as a result of 337 * --with-mangling and/or --with-jemalloc-prefix configuration settings. 338 */ 339 #ifdef JEMALLOC_MANGLE 340 # ifndef JEMALLOC_NO_DEMANGLE 341 # define JEMALLOC_NO_DEMANGLE 342 # endif 343 # define aligned_alloc je_aligned_alloc 344 # define calloc je_calloc 345 # define dallocx je_dallocx 346 # define free je_free 347 # define mallctl je_mallctl 348 # define mallctlbymib je_mallctlbymib 349 # define mallctlnametomib je_mallctlnametomib 350 # define malloc je_malloc 351 # define malloc_conf je_malloc_conf 352 # define malloc_message je_malloc_message 353 # define malloc_stats_print je_malloc_stats_print 354 # define malloc_usable_size je_malloc_usable_size 355 # define mallocx je_mallocx 356 # define nallocx je_nallocx 357 # define posix_memalign je_posix_memalign 358 # define rallocx je_rallocx 359 # define realloc je_realloc 360 # define sallocx je_sallocx 361 # define sdallocx je_sdallocx 362 # define xallocx je_xallocx 363 # define memalign je_memalign 364 # define valloc je_valloc 365 #endif 366 367 /* 368 * The je_* macros can be used as stable alternative names for the 369 * public jemalloc API if JEMALLOC_NO_DEMANGLE is defined. This is primarily 370 * meant for use in jemalloc itself, but it can be used by application code to 371 * provide isolation from the name mangling specified via --with-mangling 372 * and/or --with-jemalloc-prefix. 373 */ 374 #ifndef JEMALLOC_NO_DEMANGLE 375 # undef je_aligned_alloc 376 # undef je_calloc 377 # undef je_dallocx 378 # undef je_free 379 # undef je_mallctl 380 # undef je_mallctlbymib 381 # undef je_mallctlnametomib 382 # undef je_malloc 383 # undef je_malloc_conf 384 # undef je_malloc_message 385 # undef je_malloc_stats_print 386 # undef je_malloc_usable_size 387 # undef je_mallocx 388 # undef je_nallocx 389 # undef je_posix_memalign 390 # undef je_rallocx 391 # undef je_realloc 392 # undef je_sallocx 393 # undef je_sdallocx 394 # undef je_xallocx 395 # undef je_memalign 396 # undef je_valloc 397 #endif 398 399 #ifdef __cplusplus 400 } 401 #endif 402 #endif /* JEMALLOC_H_ */ 403
