| #ifndef JEMALLOC_INTERNAL_TCACHE_TYPES_H |
| #define JEMALLOC_INTERNAL_TCACHE_TYPES_H |
| |
| typedef struct tcache_bin_info_s tcache_bin_info_t; |
| typedef struct tcache_bin_s tcache_bin_t; |
| typedef struct tcache_s tcache_t; |
| typedef struct tcaches_s tcaches_t; |
| |
| /* |
| * tcache pointers close to NULL are used to encode state information that is |
| * used for two purposes: preventing thread caching on a per thread basis and |
| * cleaning up during thread shutdown. |
| */ |
| #define TCACHE_STATE_DISABLED ((tcache_t *)(uintptr_t)1) |
| #define TCACHE_STATE_REINCARNATED ((tcache_t *)(uintptr_t)2) |
| #define TCACHE_STATE_PURGATORY ((tcache_t *)(uintptr_t)3) |
| #define TCACHE_STATE_MAX TCACHE_STATE_PURGATORY |
| |
| /* |
| * Absolute minimum number of cache slots for each small bin. |
| */ |
| #define TCACHE_NSLOTS_SMALL_MIN 20 |
| |
| /* |
| * Absolute maximum number of cache slots for each small bin in the thread |
| * cache. This is an additional constraint beyond that imposed as: twice the |
| * number of regions per slab for this size class. |
| * |
| * This constant must be an even number. |
| */ |
| #define TCACHE_NSLOTS_SMALL_MAX 200 |
| |
| /* Number of cache slots for large size classes. */ |
| #define TCACHE_NSLOTS_LARGE 20 |
| |
| /* (1U << opt_lg_tcache_max) is used to compute tcache_maxclass. */ |
| #define LG_TCACHE_MAXCLASS_DEFAULT 15 |
| |
| /* |
| * TCACHE_GC_SWEEP is the approximate number of allocation events between |
| * full GC sweeps. Integer rounding may cause the actual number to be |
| * slightly higher, since GC is performed incrementally. |
| */ |
| #define TCACHE_GC_SWEEP 8192 |
| |
| /* Number of tcache allocation/deallocation events between incremental GCs. */ |
| #define TCACHE_GC_INCR \ |
| ((TCACHE_GC_SWEEP / NBINS) + ((TCACHE_GC_SWEEP / NBINS == 0) ? 0 : 1)) |
| |
| #endif /* JEMALLOC_INTERNAL_TCACHE_TYPES_H */ |
