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📄 arena_externs.h(4.83 KB)
📄 arena_inlines_a.h(1.44 KB)
📄 arena_inlines_b.h(11.54 KB)
📄 arena_stats.h(7.92 KB)
📄 arena_structs_a.h(293 B)
📄 arena_structs_b.h(6.63 KB)
📄 arena_types.h(1.67 KB)
📄 assert.h(1.3 KB)
📄 atomic.h(2.66 KB)
📄 atomic_c11.h(3.46 KB)
📄 atomic_gcc_atomic.h(4.06 KB)
📄 atomic_gcc_sync.h(6.21 KB)
📄 background_thread_externs.h(1.29 KB)
📄 background_thread_inlines.h(2.09 KB)
📄 background_thread_structs.h(1.74 KB)
📄 base_externs.h(946 B)
📄 base_inlines.h(312 B)
📄 base_structs.h(1.52 KB)
📄 base_types.h(1.08 KB)
📄 bin.h(3.6 KB)
📄 bin_stats.h(1.35 KB)
📄 bin_types.h(474 B)
📄 bit_util.h(5.22 KB)
📄 bitmap.h(10.97 KB)
📄 cache_bin.h(3.69 KB)
📄 ckh.h(3.19 KB)
📄 ctl.h(3.62 KB)
📄 div.h(1.14 KB)
📄 emitter.h(13.06 KB)
📄 extent_dss.h(728 B)
📄 extent_externs.h(3.75 KB)
📄 extent_inlines.h(13.4 KB)
📄 extent_mmap.h(328 B)
📄 extent_structs.h(8.46 KB)
📄 extent_types.h(700 B)
📄 hash.h(7.88 KB)
📄 hook.h(5.41 KB)
📄 jemalloc_internal_decls.h(2.19 KB)
📄 jemalloc_internal_defs.h(10.93 KB)
📄 jemalloc_internal_defs_FreeBSD.h(256 B)
📄 jemalloc_internal_externs.h(1.75 KB)
📄 jemalloc_internal_includes.h(4.19 KB)
📄 jemalloc_internal_inlines_a.h(4.39 KB)
📄 jemalloc_internal_inlines_b.h(2.24 KB)
📄 jemalloc_internal_inlines_c.h(7.08 KB)
📄 jemalloc_internal_macros.h(3.99 KB)
📄 jemalloc_internal_types.h(3.42 KB)
📄 jemalloc_preamble.h(3.9 KB)
📄 large_externs.h(1.4 KB)
📄 log.h(3.67 KB)
📄 malloc_io.h(2.9 KB)
📄 mutex.h(9.34 KB)
📄 mutex_pool.h(2.81 KB)
📄 mutex_prof.h(3.55 KB)
📄 nstime.h(1.27 KB)
📄 pages.h(3.05 KB)
📄 ph.h(12.26 KB)
📄 private_namespace.h(22.72 KB)
📄 prng.h(4.69 KB)
📄 prof_externs.h(3.79 KB)
📄 prof_inlines_a.h(2.44 KB)
📄 prof_inlines_b.h(6.42 KB)
📄 prof_structs.h(5.02 KB)
📄 prof_types.h(1.74 KB)
📄 public_namespace.h(1.03 KB)
📄 ql.h(2.45 KB)
📄 qr.h(2.29 KB)
📄 quantum.h(1.75 KB)
📄 rb.h(37.41 KB)
📄 rtree.h(17.01 KB)
📄 rtree_tsd.h(1.82 KB)
📄 safety_check.h(797 B)
📄 sc.h(12.98 KB)
📄 seq.h(1.81 KB)
📄 smoothstep.h(15.26 KB)
📄 spin.h(613 B)
📄 stats.h(998 B)
📄 sz.h(7.96 KB)
📄 tcache_externs.h(2.09 KB)
📄 tcache_inlines.h(5.73 KB)
📄 tcache_structs.h(2.05 KB)
📄 tcache_types.h(2.01 KB)
📄 test_hooks.h(459 B)
📄 ticker.h(2.21 KB)
📄 tsd.h(12.49 KB)
📄 tsd_generic.h(3.76 KB)
📄 tsd_malloc_thread_cleanup.h(1.19 KB)
📄 tsd_tls.h(1.12 KB)
📄 tsd_types.h(258 B)
📄 util.h(1.43 KB)
📄 witness.h(9.32 KB)

Editing: ticker.h

#ifndef JEMALLOC_INTERNAL_TICKER_H
#define JEMALLOC_INTERNAL_TICKER_H

#include "jemalloc/internal/util.h"

/**
 * A ticker makes it easy to count-down events until some limit.  You
 * ticker_init the ticker to trigger every nticks events.  You then notify it
 * that an event has occurred with calls to ticker_tick (or that nticks events
 * have occurred with a call to ticker_ticks), which will return true (and reset
 * the counter) if the countdown hit zero.
 */

typedef struct {
	int32_t tick;
	int32_t nticks;
} ticker_t;

static inline void
ticker_init(ticker_t *ticker, int32_t nticks) {
	ticker->tick = nticks;
	ticker->nticks = nticks;
}

static inline void
ticker_copy(ticker_t *ticker, const ticker_t *other) {
	*ticker = *other;
}

static inline int32_t
ticker_read(const ticker_t *ticker) {
	return ticker->tick;
}

/*
 * Not intended to be a public API.  Unfortunately, on x86, neither gcc nor
 * clang seems smart enough to turn
 *   ticker->tick -= nticks;
 *   if (unlikely(ticker->tick < 0)) {
 *     fixup ticker
 *     return true;
 *   }
 *   return false;
 * into
 *   subq %nticks_reg, (%ticker_reg)
 *   js fixup ticker
 *
 * unless we force "fixup ticker" out of line.  In that case, gcc gets it right,
 * but clang now does worse than before.  So, on x86 with gcc, we force it out
 * of line, but otherwise let the inlining occur.  Ordinarily this wouldn't be
 * worth the hassle, but this is on the fast path of both malloc and free (via
 * tcache_event).
 */
#if defined(__GNUC__) && !defined(__clang__)				\
    && (defined(__x86_64__) || defined(__i386__))
JEMALLOC_NOINLINE
#endif
static bool
ticker_fixup(ticker_t *ticker) {
	ticker->tick = ticker->nticks;
	return true;
}

static inline bool
ticker_ticks(ticker_t *ticker, int32_t nticks) {
	ticker->tick -= nticks;
	if (unlikely(ticker->tick < 0)) {
		return ticker_fixup(ticker);
	}
	return false;
}

static inline bool
ticker_tick(ticker_t *ticker) {
	return ticker_ticks(ticker, 1);
}

/* 
 * Try to tick.  If ticker would fire, return true, but rely on
 * slowpath to reset ticker.
 */
static inline bool
ticker_trytick(ticker_t *ticker) {
	--ticker->tick;
	if (unlikely(ticker->tick < 0)) {
		return true;
	}
	return false;
}

#endif /* JEMALLOC_INTERNAL_TICKER_H */

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Editing: ticker.h

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