server-skynet-source-3rd-je.../include/jemalloc/internal/tcache_structs.h
Qi Wang 01f47f11a6 Store associated arena in tcache.
This fixes tcache_flush for manual tcaches, which wasn't able to find
the correct arena it associated with. Also changed the decay test to
cover this case (by using manually created arenas).
2017-03-07 12:58:11 -08:00

57 lines
1.8 KiB
C

#ifndef JEMALLOC_INTERNAL_TCACHE_STRUCTS_H
#define JEMALLOC_INTERNAL_TCACHE_STRUCTS_H
typedef enum {
tcache_enabled_false = 0, /* Enable cast to/from bool. */
tcache_enabled_true = 1,
tcache_enabled_default = 2
} tcache_enabled_t;
/*
* Read-only information associated with each element of tcache_t's tbins array
* is stored separately, mainly to reduce memory usage.
*/
struct tcache_bin_info_s {
unsigned ncached_max; /* Upper limit on ncached. */
};
struct tcache_bin_s {
tcache_bin_stats_t tstats;
int low_water; /* Min # cached since last GC. */
unsigned lg_fill_div; /* Fill (ncached_max >> lg_fill_div). */
unsigned ncached; /* # of cached objects. */
/*
* To make use of adjacent cacheline prefetch, the items in the avail
* stack goes to higher address for newer allocations. avail points
* just above the available space, which means that
* avail[-ncached, ... -1] are available items and the lowest item will
* be allocated first.
*/
void **avail; /* Stack of available objects. */
};
struct tcache_s {
ql_elm(tcache_t) link; /* Used for aggregating stats. */
uint64_t prof_accumbytes;/* Cleared after arena_prof_accum(). */
ticker_t gc_ticker; /* Drives incremental GC. */
szind_t next_gc_bin; /* Next bin to GC. */
arena_t *arena; /* Associated arena. */
tcache_bin_t tbins[1]; /* Dynamically sized. */
/*
* The pointer stacks associated with tbins follow as a contiguous
* array. During tcache initialization, the avail pointer in each
* element of tbins is initialized to point to the proper offset within
* this array.
*/
};
/* Linkage for list of available (previously used) explicit tcache IDs. */
struct tcaches_s {
union {
tcache_t *tcache;
tcaches_t *next;
};
};
#endif /* JEMALLOC_INTERNAL_TCACHE_STRUCTS_H */