Added TCMalloc and JEMalloc projects

BeefRT/JEMalloc/include/jemalloc/internal/tcache_inlines.h

@@ -0,0 +1,193 @@
+#ifndef JEMALLOC_INTERNAL_TCACHE_INLINES_H
+#define JEMALLOC_INTERNAL_TCACHE_INLINES_H
+
+#include "jemalloc/internal/bin.h"
+#include "jemalloc/internal/jemalloc_internal_types.h"
+#include "jemalloc/internal/san.h"
+#include "jemalloc/internal/sc.h"
+#include "jemalloc/internal/sz.h"
+#include "jemalloc/internal/util.h"
+
+static inline bool
+tcache_enabled_get(tsd_t *tsd) {
+	return tsd_tcache_enabled_get(tsd);
+}
+
+static inline void
+tcache_enabled_set(tsd_t *tsd, bool enabled) {
+	bool was_enabled = tsd_tcache_enabled_get(tsd);
+
+	if (!was_enabled && enabled) {
+		tsd_tcache_data_init(tsd);
+	} else if (was_enabled && !enabled) {
+		tcache_cleanup(tsd);
+	}
+	/* Commit the state last.  Above calls check current state. */
+	tsd_tcache_enabled_set(tsd, enabled);
+	tsd_slow_update(tsd);
+}
+
+JEMALLOC_ALWAYS_INLINE bool
+tcache_small_bin_disabled(szind_t ind, cache_bin_t *bin) {
+	assert(ind < SC_NBINS);
+	bool ret = (cache_bin_info_ncached_max(&tcache_bin_info[ind]) == 0);
+	if (ret && bin != NULL) {
+		/* small size class but cache bin disabled. */
+		assert(ind >= nhbins);
+		assert((uintptr_t)(*bin->stack_head) ==
+		    cache_bin_preceding_junk);
+	}
+
+	return ret;
+}
+
+JEMALLOC_ALWAYS_INLINE void *
+tcache_alloc_small(tsd_t *tsd, arena_t *arena, tcache_t *tcache,
+    size_t size, szind_t binind, bool zero, bool slow_path) {
+	void *ret;
+	bool tcache_success;
+
+	assert(binind < SC_NBINS);
+	cache_bin_t *bin = &tcache->bins[binind];
+	ret = cache_bin_alloc(bin, &tcache_success);
+	assert(tcache_success == (ret != NULL));
+	if (unlikely(!tcache_success)) {
+		bool tcache_hard_success;
+		arena = arena_choose(tsd, arena);
+		if (unlikely(arena == NULL)) {
+			return NULL;
+		}
+		if (unlikely(tcache_small_bin_disabled(binind, bin))) {
+			/* stats and zero are handled directly by the arena. */
+			return arena_malloc_hard(tsd_tsdn(tsd), arena, size,
+			    binind, zero);
+		}
+		tcache_bin_flush_stashed(tsd, tcache, bin, binind,
+		    /* is_small */ true);
+
+		ret = tcache_alloc_small_hard(tsd_tsdn(tsd), arena, tcache,
+		    bin, binind, &tcache_hard_success);
+		if (tcache_hard_success == false) {
+			return NULL;
+		}
+	}
+
+	assert(ret);
+	if (unlikely(zero)) {
+		size_t usize = sz_index2size(binind);
+		assert(tcache_salloc(tsd_tsdn(tsd), ret) == usize);
+		memset(ret, 0, usize);
+	}
+	if (config_stats) {
+		bin->tstats.nrequests++;
+	}
+	return ret;
+}
+
+JEMALLOC_ALWAYS_INLINE void *
+tcache_alloc_large(tsd_t *tsd, arena_t *arena, tcache_t *tcache, size_t size,
+    szind_t binind, bool zero, bool slow_path) {
+	void *ret;
+	bool tcache_success;
+
+	assert(binind >= SC_NBINS && binind < nhbins);
+	cache_bin_t *bin = &tcache->bins[binind];
+	ret = cache_bin_alloc(bin, &tcache_success);
+	assert(tcache_success == (ret != NULL));
+	if (unlikely(!tcache_success)) {
+		/*
+		 * Only allocate one large object at a time, because it's quite
+		 * expensive to create one and not use it.
+		 */
+		arena = arena_choose(tsd, arena);
+		if (unlikely(arena == NULL)) {
+			return NULL;
+		}
+		tcache_bin_flush_stashed(tsd, tcache, bin, binind,
+		    /* is_small */ false);
+
+		ret = large_malloc(tsd_tsdn(tsd), arena, sz_s2u(size), zero);
+		if (ret == NULL) {
+			return NULL;
+		}
+	} else {
+		if (unlikely(zero)) {
+			size_t usize = sz_index2size(binind);
+			assert(usize <= tcache_maxclass);
+			memset(ret, 0, usize);
+		}
+
+		if (config_stats) {
+			bin->tstats.nrequests++;
+		}
+	}
+
+	return ret;
+}
+
+JEMALLOC_ALWAYS_INLINE void
+tcache_dalloc_small(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
+    bool slow_path) {
+	assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= SC_SMALL_MAXCLASS);
+
+	cache_bin_t *bin = &tcache->bins[binind];
+	/*
+	 * Not marking the branch unlikely because this is past free_fastpath()
+	 * (which handles the most common cases), i.e. at this point it's often
+	 * uncommon cases.
+	 */
+	if (cache_bin_nonfast_aligned(ptr)) {
+		/* Junk unconditionally, even if bin is full. */
+		san_junk_ptr(ptr, sz_index2size(binind));
+		if (cache_bin_stash(bin, ptr)) {
+			return;
+		}
+		assert(cache_bin_full(bin));
+		/* Bin full; fall through into the flush branch. */
+	}
+
+	if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) {
+		if (unlikely(tcache_small_bin_disabled(binind, bin))) {
+			arena_dalloc_small(tsd_tsdn(tsd), ptr);
+			return;
+		}
+		cache_bin_sz_t max = cache_bin_info_ncached_max(
+		    &tcache_bin_info[binind]);
+		unsigned remain = max >> opt_lg_tcache_flush_small_div;
+		tcache_bin_flush_small(tsd, tcache, bin, binind, remain);
+		bool ret = cache_bin_dalloc_easy(bin, ptr);
+		assert(ret);
+	}
+}
+
+JEMALLOC_ALWAYS_INLINE void
+tcache_dalloc_large(tsd_t *tsd, tcache_t *tcache, void *ptr, szind_t binind,
+    bool slow_path) {
+
+	assert(tcache_salloc(tsd_tsdn(tsd), ptr)
+	    > SC_SMALL_MAXCLASS);
+	assert(tcache_salloc(tsd_tsdn(tsd), ptr) <= tcache_maxclass);
+
+	cache_bin_t *bin = &tcache->bins[binind];
+	if (unlikely(!cache_bin_dalloc_easy(bin, ptr))) {
+		unsigned remain = cache_bin_info_ncached_max(
+		    &tcache_bin_info[binind]) >> opt_lg_tcache_flush_large_div;
+		tcache_bin_flush_large(tsd, tcache, bin, binind, remain);
+		bool ret = cache_bin_dalloc_easy(bin, ptr);
+		assert(ret);
+	}
+}
+
+JEMALLOC_ALWAYS_INLINE tcache_t *
+tcaches_get(tsd_t *tsd, unsigned ind) {
+	tcaches_t *elm = &tcaches[ind];
+	if (unlikely(elm->tcache == NULL)) {
+		malloc_printf("<jemalloc>: invalid tcache id (%u).\n", ind);
+		abort();
+	} else if (unlikely(elm->tcache == TCACHES_ELM_NEED_REINIT)) {
+		elm->tcache = tcache_create_explicit(tsd);
+	}
+	return elm->tcache;
+}
+
+#endif /* JEMALLOC_INTERNAL_TCACHE_INLINES_H */