mirror of
https://github.com/jemalloc/jemalloc.git
synced 2026-06-15 00:15:39 +03:00
09d419ded5
Fold historical *_types/_structs/_externs/_inlines splits where the layering is no longer load-bearing. - large_externs.h -> large.h: rename; it was a single-purpose function-prototype file. - background_thread_structs.h + background_thread_externs.h -> background_thread.h: merge. background_thread_inlines.h stays separate because it depends on arena_inlines_a.h. - bin_types.h -> bin.h: BIN_SHARDS_MAX / N_BIN_SHARDS_DEFAULT join the bin_t struct and the bin_dalloc_locked_info_t type. bin_inlines.h stays separate so TUs that only need the bin_t type don't pull in the tcache-flush inline closure. The two bin_stats_* helpers move from bin.h into bin_inlines.h so all bin inlines live together. - tsd_binshards.h (new): houses tsd_binshards_t and its zero initializer. Lets tsd_internals.h pull it in for X-macro expansion without dragging mutex.h -- mutex.h depends on TSD machinery, which would form a cycle through bin.h. jemalloc_internal_includes.h drops the references to the deleted/ merged headers.
232 lines
9.8 KiB
C
232 lines
9.8 KiB
C
#ifdef JEMALLOC_INTERNAL_TSD_INTERNALS_H
|
|
#error This file should be included only once, by one of tsd_malloc_thread_cleanup.h, tsd_tls.h, tsd_generic.h, or tsd_win.h
|
|
#endif
|
|
#define JEMALLOC_INTERNAL_TSD_INTERNALS_H
|
|
|
|
#include "jemalloc/internal/jemalloc_preamble.h"
|
|
#include "jemalloc/internal/arena_types.h"
|
|
#include "jemalloc/internal/assert.h"
|
|
#include "jemalloc/internal/tsd_binshards.h"
|
|
#include "jemalloc/internal/jemalloc_internal_externs.h"
|
|
#include "jemalloc/internal/peak.h"
|
|
#include "jemalloc/internal/prof_types.h"
|
|
#include "jemalloc/internal/rtree_tsd.h"
|
|
#include "jemalloc/internal/tcache_structs.h"
|
|
#include "jemalloc/internal/tcache_types.h"
|
|
#include "jemalloc/internal/thread_event_registry.h"
|
|
#include "jemalloc/internal/tsd_types.h"
|
|
#include "jemalloc/internal/util.h"
|
|
#include "jemalloc/internal/witness.h"
|
|
|
|
/*
|
|
* Thread-Specific-Data layout
|
|
*
|
|
* At least some thread-local data gets touched on the fast-path of almost all
|
|
* malloc operations. But much of it is only necessary down slow-paths, or
|
|
* testing. We want to colocate the fast-path data so that it can live on the
|
|
* same cacheline if possible. So we define three tiers of hotness:
|
|
* TSD_DATA_FAST: Touched on the alloc/dalloc fast paths.
|
|
* TSD_DATA_SLOW: Touched down slow paths. "Slow" here is sort of general;
|
|
* there are "semi-slow" paths like "not a sized deallocation, but can still
|
|
* live in the tcache". We'll want to keep these closer to the fast-path
|
|
* data.
|
|
* TSD_DATA_SLOWER: Only touched in test or debug modes, or not touched at all.
|
|
*
|
|
* An additional concern is that the larger tcache bins won't be used (we have a
|
|
* bin per size class, but by default only cache relatively small objects). So
|
|
* the earlier bins are in the TSD_DATA_FAST tier, but the later ones are in the
|
|
* TSD_DATA_SLOWER tier.
|
|
*
|
|
* As a result of all this, we put the slow data first, then the fast data, then
|
|
* the slower data, while keeping the tcache as the last element of the fast
|
|
* data (so that the fast -> slower transition happens midway through the
|
|
* tcache). While we don't yet play alignment tricks to guarantee it, this
|
|
* increases our odds of getting some cache/page locality on fast paths.
|
|
*/
|
|
|
|
#ifdef JEMALLOC_JET
|
|
typedef void (*test_callback_t)(int *);
|
|
# define MALLOC_TSD_TEST_DATA_INIT 0x72b65c10
|
|
# define MALLOC_TEST_TSD \
|
|
O(test_data, int, int) \
|
|
O(test_callback, test_callback_t, int)
|
|
# define MALLOC_TEST_TSD_INITIALIZER , MALLOC_TSD_TEST_DATA_INIT, NULL
|
|
#else
|
|
# define MALLOC_TEST_TSD
|
|
# define MALLOC_TEST_TSD_INITIALIZER
|
|
#endif
|
|
|
|
/* O(name, type, nullable type) */
|
|
#define TSD_DATA_SLOW \
|
|
O(tcache_enabled, bool, bool) \
|
|
O(reentrancy_level, int8_t, int8_t) \
|
|
O(min_init_state_nfetched, uint8_t, uint8_t) \
|
|
O(thread_allocated_last_event, uint64_t, uint64_t) \
|
|
O(thread_allocated_next_event, uint64_t, uint64_t) \
|
|
O(thread_deallocated_last_event, uint64_t, uint64_t) \
|
|
O(thread_deallocated_next_event, uint64_t, uint64_t) \
|
|
O(te_data, te_data_t, te_data_t) \
|
|
O(prof_sample_last_event, uint64_t, uint64_t) \
|
|
O(stats_interval_last_event, uint64_t, uint64_t) \
|
|
O(prof_tdata, prof_tdata_t *, prof_tdata_t *) \
|
|
O(prng_state, uint64_t, uint64_t) \
|
|
O(san_extents_until_guard_small, uint64_t, uint64_t) \
|
|
O(san_extents_until_guard_large, uint64_t, uint64_t) \
|
|
O(iarena, arena_t *, arena_t *) \
|
|
O(arena, arena_t *, arena_t *) \
|
|
O(arena_decay_ticker, ticker_geom_t, ticker_geom_t) \
|
|
O(sec_shard, uint8_t, uint8_t) \
|
|
O(binshards, tsd_binshards_t, tsd_binshards_t) \
|
|
O(peak, peak_t, peak_t) \
|
|
O(tcache_slow, tcache_slow_t, tcache_slow_t) \
|
|
O(rtree_ctx, rtree_ctx_t, rtree_ctx_t)
|
|
|
|
#define TSD_DATA_SLOW_INITIALIZER \
|
|
/* tcache_enabled */ TCACHE_ENABLED_ZERO_INITIALIZER, \
|
|
/* reentrancy_level */ 0, /* min_init_state_nfetched */ 0, \
|
|
/* thread_allocated_last_event */ 0, \
|
|
/* thread_allocated_next_event */ 0, \
|
|
/* thread_deallocated_last_event */ 0, \
|
|
/* thread_deallocated_next_event */ 0, \
|
|
/* te_data */ TE_DATA_INITIALIZER, /* prof_sample_last_event */ 0, \
|
|
/* stats_interval_last_event */ 0, /* prof_tdata */ NULL, \
|
|
/* prng_state */ 0, /* san_extents_until_guard_small */ 0, \
|
|
/* san_extents_until_guard_large */ 0, /* iarena */ NULL, \
|
|
/* arena */ NULL, /* arena_decay_ticker */ \
|
|
TICKER_GEOM_INIT(ARENA_DECAY_NTICKS_PER_UPDATE), \
|
|
/* sec_shard */ (uint8_t) - 1, \
|
|
/* binshards */ TSD_BINSHARDS_ZERO_INITIALIZER, \
|
|
/* peak */ PEAK_INITIALIZER, /* tcache_slow */ \
|
|
TCACHE_SLOW_ZERO_INITIALIZER, \
|
|
/* rtree_ctx */ RTREE_CTX_INITIALIZER,
|
|
|
|
/* O(name, type, nullable type) */
|
|
#define TSD_DATA_FAST \
|
|
O(thread_allocated, uint64_t, uint64_t) \
|
|
O(thread_allocated_next_event_fast, uint64_t, uint64_t) \
|
|
O(thread_deallocated, uint64_t, uint64_t) \
|
|
O(thread_deallocated_next_event_fast, uint64_t, uint64_t) \
|
|
O(tcache, tcache_t, tcache_t)
|
|
|
|
#define TSD_DATA_FAST_INITIALIZER \
|
|
/* thread_allocated */ 0, /* thread_allocated_next_event_fast */ 0, \
|
|
/* thread_deallocated */ 0, \
|
|
/* thread_deallocated_next_event_fast */ 0, \
|
|
/* tcache */ TCACHE_ZERO_INITIALIZER,
|
|
|
|
/* O(name, type, nullable type) */
|
|
#define TSD_DATA_SLOWER \
|
|
O(witness_tsd, witness_tsd_t, witness_tsdn_t) \
|
|
MALLOC_TEST_TSD
|
|
|
|
#define TSD_DATA_SLOWER_INITIALIZER \
|
|
/* witness */ WITNESS_TSD_INITIALIZER \
|
|
/* test data */ MALLOC_TEST_TSD_INITIALIZER
|
|
|
|
#define TSD_INITIALIZER \
|
|
{ \
|
|
TSD_DATA_SLOW_INITIALIZER \
|
|
/* state */ tsd_state_uninitialized, \
|
|
TSD_DATA_FAST_INITIALIZER TSD_DATA_SLOWER_INITIALIZER \
|
|
}
|
|
|
|
#if defined(JEMALLOC_MALLOC_THREAD_CLEANUP) || defined(_WIN32)
|
|
void _malloc_tsd_cleanup_register(bool (*f)(void));
|
|
#endif
|
|
|
|
void *malloc_tsd_malloc(size_t size);
|
|
void malloc_tsd_dalloc(void *wrapper);
|
|
tsd_t *malloc_tsd_boot0(void);
|
|
void malloc_tsd_boot1(void);
|
|
void tsd_cleanup(void *arg);
|
|
tsd_t *tsd_fetch_slow(tsd_t *tsd, bool minimal);
|
|
void tsd_state_set(tsd_t *tsd, uint8_t new_state);
|
|
void tsd_slow_update(tsd_t *tsd);
|
|
|
|
#define TSD_MIN_INIT_STATE_MAX_FETCHED (128)
|
|
|
|
enum {
|
|
/* Common case --> jnz. */
|
|
tsd_state_nominal = 0,
|
|
/* Initialized but on slow path. */
|
|
tsd_state_nominal_slow = 1,
|
|
/*
|
|
* The above nominal states should be lower values. We use
|
|
* tsd_nominal_max to separate nominal states from threads in the
|
|
* process of being born / dying.
|
|
*/
|
|
tsd_state_nominal_max = 1,
|
|
|
|
/*
|
|
* A thread might free() during its death as its only allocator action;
|
|
* in such scenarios, we need tsd, but set up in such a way that no
|
|
* cleanup is necessary.
|
|
*/
|
|
tsd_state_minimal_initialized = 2,
|
|
/* States during which we know we're in thread death. */
|
|
tsd_state_purgatory = 3,
|
|
tsd_state_reincarnated = 4,
|
|
/*
|
|
* What it says on the tin; tsd that hasn't been initialized. Note
|
|
* that even when the tsd struct lives in TLS, when need to keep track
|
|
* of stuff like whether or not our pthread destructors have been
|
|
* scheduled, so this really truly is different than the nominal state.
|
|
*/
|
|
tsd_state_uninitialized = 5
|
|
};
|
|
|
|
/*
|
|
* Some TSD accesses can only be done in a nominal state. To enforce this, we
|
|
* wrap TSD member access in a function that asserts on TSD state, and mangle
|
|
* field names to prevent touching them accidentally.
|
|
*/
|
|
#define TSD_MANGLE(n) cant_access_tsd_items_directly_use_a_getter_or_setter_##n
|
|
|
|
/* The actual tsd. */
|
|
struct tsd_s {
|
|
/*
|
|
* The contents should be treated as totally opaque outside the tsd
|
|
* module. Access any thread-local state through the getters and
|
|
* setters below.
|
|
*/
|
|
|
|
#define O(n, t, nt) t TSD_MANGLE(n);
|
|
|
|
TSD_DATA_SLOW
|
|
/* Encodes one of tsd_state_*; mutated only by the owning thread. */
|
|
uint8_t state;
|
|
TSD_DATA_FAST
|
|
TSD_DATA_SLOWER
|
|
#undef O
|
|
};
|
|
|
|
JEMALLOC_ALWAYS_INLINE uint8_t
|
|
tsd_state_get(tsd_t *tsd) {
|
|
return tsd->state;
|
|
}
|
|
|
|
/*
|
|
* Wrapper around tsd_t that makes it possible to avoid implicit conversion
|
|
* between tsd_t and tsdn_t, where tsdn_t is "nullable" and has to be
|
|
* explicitly converted to tsd_t, which is non-nullable.
|
|
*/
|
|
struct tsdn_s {
|
|
tsd_t tsd;
|
|
};
|
|
#define TSDN_NULL ((tsdn_t *)0)
|
|
JEMALLOC_ALWAYS_INLINE tsdn_t *
|
|
tsd_tsdn(tsd_t *tsd) {
|
|
return (tsdn_t *)tsd;
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE bool
|
|
tsdn_null(const tsdn_t *tsdn) {
|
|
return tsdn == NULL;
|
|
}
|
|
|
|
JEMALLOC_ALWAYS_INLINE tsd_t *
|
|
tsdn_tsd(tsdn_t *tsdn) {
|
|
assert(!tsdn_null(tsdn));
|
|
|
|
return &tsdn->tsd;
|
|
}
|