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authorbugaevskiy <[email protected]>2022-02-10 16:46:17 +0300
committerDaniil Cherednik <[email protected]>2022-02-10 16:46:17 +0300
commitc7f68570483e493f4ddaf946de7b3a420ee621b0 (patch)
tree9c0071ecb0669ad439755fd802425230a52673ce /contrib/libs/jemalloc/src/rtree.c
parent1312621288956f199a5bd5342b0133d4395fa725 (diff)
Restoring authorship annotation for <[email protected]>. Commit 1 of 2.
Diffstat (limited to 'contrib/libs/jemalloc/src/rtree.c')
-rw-r--r--contrib/libs/jemalloc/src/rtree.c582
1 files changed, 291 insertions, 291 deletions
diff --git a/contrib/libs/jemalloc/src/rtree.c b/contrib/libs/jemalloc/src/rtree.c
index 4ae41fe2fec..87f385e3b4f 100644
--- a/contrib/libs/jemalloc/src/rtree.c
+++ b/contrib/libs/jemalloc/src/rtree.c
@@ -1,320 +1,320 @@
-#define JEMALLOC_RTREE_C_
-#include "jemalloc/internal/jemalloc_preamble.h"
-#include "jemalloc/internal/jemalloc_internal_includes.h"
+#define JEMALLOC_RTREE_C_
+#include "jemalloc/internal/jemalloc_preamble.h"
+#include "jemalloc/internal/jemalloc_internal_includes.h"
-#include "jemalloc/internal/assert.h"
-#include "jemalloc/internal/mutex.h"
+#include "jemalloc/internal/assert.h"
+#include "jemalloc/internal/mutex.h"
-/*
- * Only the most significant bits of keys passed to rtree_{read,write}() are
- * used.
- */
-bool
-rtree_new(rtree_t *rtree, bool zeroed) {
-#ifdef JEMALLOC_JET
- if (!zeroed) {
- memset(rtree, 0, sizeof(rtree_t)); /* Clear root. */
- }
-#else
- assert(zeroed);
-#endif
+/*
+ * Only the most significant bits of keys passed to rtree_{read,write}() are
+ * used.
+ */
+bool
+rtree_new(rtree_t *rtree, bool zeroed) {
+#ifdef JEMALLOC_JET
+ if (!zeroed) {
+ memset(rtree, 0, sizeof(rtree_t)); /* Clear root. */
+ }
+#else
+ assert(zeroed);
+#endif
- if (malloc_mutex_init(&rtree->init_lock, "rtree", WITNESS_RANK_RTREE,
- malloc_mutex_rank_exclusive)) {
- return true;
+ if (malloc_mutex_init(&rtree->init_lock, "rtree", WITNESS_RANK_RTREE,
+ malloc_mutex_rank_exclusive)) {
+ return true;
}
- return false;
-}
-
-static rtree_node_elm_t *
-rtree_node_alloc_impl(tsdn_t *tsdn, rtree_t *rtree, size_t nelms) {
- return (rtree_node_elm_t *)base_alloc(tsdn, b0get(), nelms *
- sizeof(rtree_node_elm_t), CACHELINE);
-}
-rtree_node_alloc_t *JET_MUTABLE rtree_node_alloc = rtree_node_alloc_impl;
-
-static void
-rtree_node_dalloc_impl(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *node) {
- /* Nodes are never deleted during normal operation. */
- not_reached();
-}
-rtree_node_dalloc_t *JET_MUTABLE rtree_node_dalloc =
- rtree_node_dalloc_impl;
+ return false;
+}
-static rtree_leaf_elm_t *
-rtree_leaf_alloc_impl(tsdn_t *tsdn, rtree_t *rtree, size_t nelms) {
- return (rtree_leaf_elm_t *)base_alloc(tsdn, b0get(), nelms *
- sizeof(rtree_leaf_elm_t), CACHELINE);
-}
-rtree_leaf_alloc_t *JET_MUTABLE rtree_leaf_alloc = rtree_leaf_alloc_impl;
-
-static void
-rtree_leaf_dalloc_impl(tsdn_t *tsdn, rtree_t *rtree, rtree_leaf_elm_t *leaf) {
- /* Leaves are never deleted during normal operation. */
- not_reached();
-}
-rtree_leaf_dalloc_t *JET_MUTABLE rtree_leaf_dalloc =
- rtree_leaf_dalloc_impl;
-
-#ifdef JEMALLOC_JET
-# if RTREE_HEIGHT > 1
-static void
-rtree_delete_subtree(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *subtree,
- unsigned level) {
- size_t nchildren = ZU(1) << rtree_levels[level].bits;
- if (level + 2 < RTREE_HEIGHT) {
- for (size_t i = 0; i < nchildren; i++) {
- rtree_node_elm_t *node =
- (rtree_node_elm_t *)atomic_load_p(&subtree[i].child,
- ATOMIC_RELAXED);
- if (node != NULL) {
- rtree_delete_subtree(tsdn, rtree, node, level +
- 1);
- }
- }
- } else {
- for (size_t i = 0; i < nchildren; i++) {
- rtree_leaf_elm_t *leaf =
- (rtree_leaf_elm_t *)atomic_load_p(&subtree[i].child,
- ATOMIC_RELAXED);
- if (leaf != NULL) {
- rtree_leaf_dalloc(tsdn, rtree, leaf);
- }
- }
+static rtree_node_elm_t *
+rtree_node_alloc_impl(tsdn_t *tsdn, rtree_t *rtree, size_t nelms) {
+ return (rtree_node_elm_t *)base_alloc(tsdn, b0get(), nelms *
+ sizeof(rtree_node_elm_t), CACHELINE);
+}
+rtree_node_alloc_t *JET_MUTABLE rtree_node_alloc = rtree_node_alloc_impl;
+
+static void
+rtree_node_dalloc_impl(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *node) {
+ /* Nodes are never deleted during normal operation. */
+ not_reached();
+}
+rtree_node_dalloc_t *JET_MUTABLE rtree_node_dalloc =
+ rtree_node_dalloc_impl;
+
+static rtree_leaf_elm_t *
+rtree_leaf_alloc_impl(tsdn_t *tsdn, rtree_t *rtree, size_t nelms) {
+ return (rtree_leaf_elm_t *)base_alloc(tsdn, b0get(), nelms *
+ sizeof(rtree_leaf_elm_t), CACHELINE);
+}
+rtree_leaf_alloc_t *JET_MUTABLE rtree_leaf_alloc = rtree_leaf_alloc_impl;
+
+static void
+rtree_leaf_dalloc_impl(tsdn_t *tsdn, rtree_t *rtree, rtree_leaf_elm_t *leaf) {
+ /* Leaves are never deleted during normal operation. */
+ not_reached();
+}
+rtree_leaf_dalloc_t *JET_MUTABLE rtree_leaf_dalloc =
+ rtree_leaf_dalloc_impl;
+
+#ifdef JEMALLOC_JET
+# if RTREE_HEIGHT > 1
+static void
+rtree_delete_subtree(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *subtree,
+ unsigned level) {
+ size_t nchildren = ZU(1) << rtree_levels[level].bits;
+ if (level + 2 < RTREE_HEIGHT) {
+ for (size_t i = 0; i < nchildren; i++) {
+ rtree_node_elm_t *node =
+ (rtree_node_elm_t *)atomic_load_p(&subtree[i].child,
+ ATOMIC_RELAXED);
+ if (node != NULL) {
+ rtree_delete_subtree(tsdn, rtree, node, level +
+ 1);
+ }
+ }
+ } else {
+ for (size_t i = 0; i < nchildren; i++) {
+ rtree_leaf_elm_t *leaf =
+ (rtree_leaf_elm_t *)atomic_load_p(&subtree[i].child,
+ ATOMIC_RELAXED);
+ if (leaf != NULL) {
+ rtree_leaf_dalloc(tsdn, rtree, leaf);
+ }
+ }
}
- if (subtree != rtree->root) {
- rtree_node_dalloc(tsdn, rtree, subtree);
+ if (subtree != rtree->root) {
+ rtree_node_dalloc(tsdn, rtree, subtree);
}
-}
-# endif
+}
+# endif
-void
-rtree_delete(tsdn_t *tsdn, rtree_t *rtree) {
-# if RTREE_HEIGHT > 1
- rtree_delete_subtree(tsdn, rtree, rtree->root, 0);
-# endif
+void
+rtree_delete(tsdn_t *tsdn, rtree_t *rtree) {
+# if RTREE_HEIGHT > 1
+ rtree_delete_subtree(tsdn, rtree, rtree->root, 0);
+# endif
}
-#endif
+#endif
-static rtree_node_elm_t *
-rtree_node_init(tsdn_t *tsdn, rtree_t *rtree, unsigned level,
- atomic_p_t *elmp) {
- malloc_mutex_lock(tsdn, &rtree->init_lock);
- /*
- * If *elmp is non-null, then it was initialized with the init lock
- * held, so we can get by with 'relaxed' here.
- */
- rtree_node_elm_t *node = atomic_load_p(elmp, ATOMIC_RELAXED);
- if (node == NULL) {
- node = rtree_node_alloc(tsdn, rtree, ZU(1) <<
- rtree_levels[level].bits);
- if (node == NULL) {
- malloc_mutex_unlock(tsdn, &rtree->init_lock);
- return NULL;
- }
- /*
- * Even though we hold the lock, a later reader might not; we
- * need release semantics.
- */
- atomic_store_p(elmp, node, ATOMIC_RELEASE);
- }
- malloc_mutex_unlock(tsdn, &rtree->init_lock);
+static rtree_node_elm_t *
+rtree_node_init(tsdn_t *tsdn, rtree_t *rtree, unsigned level,
+ atomic_p_t *elmp) {
+ malloc_mutex_lock(tsdn, &rtree->init_lock);
+ /*
+ * If *elmp is non-null, then it was initialized with the init lock
+ * held, so we can get by with 'relaxed' here.
+ */
+ rtree_node_elm_t *node = atomic_load_p(elmp, ATOMIC_RELAXED);
+ if (node == NULL) {
+ node = rtree_node_alloc(tsdn, rtree, ZU(1) <<
+ rtree_levels[level].bits);
+ if (node == NULL) {
+ malloc_mutex_unlock(tsdn, &rtree->init_lock);
+ return NULL;
+ }
+ /*
+ * Even though we hold the lock, a later reader might not; we
+ * need release semantics.
+ */
+ atomic_store_p(elmp, node, ATOMIC_RELEASE);
+ }
+ malloc_mutex_unlock(tsdn, &rtree->init_lock);
- return node;
-}
+ return node;
+}
-static rtree_leaf_elm_t *
-rtree_leaf_init(tsdn_t *tsdn, rtree_t *rtree, atomic_p_t *elmp) {
- malloc_mutex_lock(tsdn, &rtree->init_lock);
- /*
- * If *elmp is non-null, then it was initialized with the init lock
- * held, so we can get by with 'relaxed' here.
- */
- rtree_leaf_elm_t *leaf = atomic_load_p(elmp, ATOMIC_RELAXED);
- if (leaf == NULL) {
- leaf = rtree_leaf_alloc(tsdn, rtree, ZU(1) <<
- rtree_levels[RTREE_HEIGHT-1].bits);
- if (leaf == NULL) {
- malloc_mutex_unlock(tsdn, &rtree->init_lock);
- return NULL;
+static rtree_leaf_elm_t *
+rtree_leaf_init(tsdn_t *tsdn, rtree_t *rtree, atomic_p_t *elmp) {
+ malloc_mutex_lock(tsdn, &rtree->init_lock);
+ /*
+ * If *elmp is non-null, then it was initialized with the init lock
+ * held, so we can get by with 'relaxed' here.
+ */
+ rtree_leaf_elm_t *leaf = atomic_load_p(elmp, ATOMIC_RELAXED);
+ if (leaf == NULL) {
+ leaf = rtree_leaf_alloc(tsdn, rtree, ZU(1) <<
+ rtree_levels[RTREE_HEIGHT-1].bits);
+ if (leaf == NULL) {
+ malloc_mutex_unlock(tsdn, &rtree->init_lock);
+ return NULL;
}
- /*
- * Even though we hold the lock, a later reader might not; we
- * need release semantics.
- */
- atomic_store_p(elmp, leaf, ATOMIC_RELEASE);
- }
- malloc_mutex_unlock(tsdn, &rtree->init_lock);
-
- return leaf;
-}
-
-static bool
-rtree_node_valid(rtree_node_elm_t *node) {
- return ((uintptr_t)node != (uintptr_t)0);
-}
-
-static bool
-rtree_leaf_valid(rtree_leaf_elm_t *leaf) {
- return ((uintptr_t)leaf != (uintptr_t)0);
-}
-
-static rtree_node_elm_t *
-rtree_child_node_tryread(rtree_node_elm_t *elm, bool dependent) {
- rtree_node_elm_t *node;
-
- if (dependent) {
- node = (rtree_node_elm_t *)atomic_load_p(&elm->child,
- ATOMIC_RELAXED);
- } else {
- node = (rtree_node_elm_t *)atomic_load_p(&elm->child,
- ATOMIC_ACQUIRE);
+ /*
+ * Even though we hold the lock, a later reader might not; we
+ * need release semantics.
+ */
+ atomic_store_p(elmp, leaf, ATOMIC_RELEASE);
}
-
- assert(!dependent || node != NULL);
- return node;
+ malloc_mutex_unlock(tsdn, &rtree->init_lock);
+
+ return leaf;
}
-static rtree_node_elm_t *
-rtree_child_node_read(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *elm,
- unsigned level, bool dependent) {
- rtree_node_elm_t *node;
+static bool
+rtree_node_valid(rtree_node_elm_t *node) {
+ return ((uintptr_t)node != (uintptr_t)0);
+}
- node = rtree_child_node_tryread(elm, dependent);
- if (!dependent && unlikely(!rtree_node_valid(node))) {
- node = rtree_node_init(tsdn, rtree, level + 1, &elm->child);
- }
- assert(!dependent || node != NULL);
- return node;
+static bool
+rtree_leaf_valid(rtree_leaf_elm_t *leaf) {
+ return ((uintptr_t)leaf != (uintptr_t)0);
}
-static rtree_leaf_elm_t *
-rtree_child_leaf_tryread(rtree_node_elm_t *elm, bool dependent) {
- rtree_leaf_elm_t *leaf;
+static rtree_node_elm_t *
+rtree_child_node_tryread(rtree_node_elm_t *elm, bool dependent) {
+ rtree_node_elm_t *node;
- if (dependent) {
- leaf = (rtree_leaf_elm_t *)atomic_load_p(&elm->child,
- ATOMIC_RELAXED);
- } else {
- leaf = (rtree_leaf_elm_t *)atomic_load_p(&elm->child,
- ATOMIC_ACQUIRE);
- }
-
- assert(!dependent || leaf != NULL);
- return leaf;
+ if (dependent) {
+ node = (rtree_node_elm_t *)atomic_load_p(&elm->child,
+ ATOMIC_RELAXED);
+ } else {
+ node = (rtree_node_elm_t *)atomic_load_p(&elm->child,
+ ATOMIC_ACQUIRE);
+ }
+
+ assert(!dependent || node != NULL);
+ return node;
}
-static rtree_leaf_elm_t *
-rtree_child_leaf_read(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *elm,
- unsigned level, bool dependent) {
- rtree_leaf_elm_t *leaf;
+static rtree_node_elm_t *
+rtree_child_node_read(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *elm,
+ unsigned level, bool dependent) {
+ rtree_node_elm_t *node;
- leaf = rtree_child_leaf_tryread(elm, dependent);
- if (!dependent && unlikely(!rtree_leaf_valid(leaf))) {
- leaf = rtree_leaf_init(tsdn, rtree, &elm->child);
- }
- assert(!dependent || leaf != NULL);
- return leaf;
+ node = rtree_child_node_tryread(elm, dependent);
+ if (!dependent && unlikely(!rtree_node_valid(node))) {
+ node = rtree_node_init(tsdn, rtree, level + 1, &elm->child);
+ }
+ assert(!dependent || node != NULL);
+ return node;
}
-rtree_leaf_elm_t *
-rtree_leaf_elm_lookup_hard(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx,
- uintptr_t key, bool dependent, bool init_missing) {
- rtree_node_elm_t *node;
- rtree_leaf_elm_t *leaf;
-#if RTREE_HEIGHT > 1
- node = rtree->root;
-#else
- leaf = rtree->root;
-#endif
-
- if (config_debug) {
- uintptr_t leafkey = rtree_leafkey(key);
- for (unsigned i = 0; i < RTREE_CTX_NCACHE; i++) {
- assert(rtree_ctx->cache[i].leafkey != leafkey);
- }
- for (unsigned i = 0; i < RTREE_CTX_NCACHE_L2; i++) {
- assert(rtree_ctx->l2_cache[i].leafkey != leafkey);
- }
- }
-
-#define RTREE_GET_CHILD(level) { \
- assert(level < RTREE_HEIGHT-1); \
- if (level != 0 && !dependent && \
- unlikely(!rtree_node_valid(node))) { \
- return NULL; \
- } \
- uintptr_t subkey = rtree_subkey(key, level); \
- if (level + 2 < RTREE_HEIGHT) { \
- node = init_missing ? \
- rtree_child_node_read(tsdn, rtree, \
- &node[subkey], level, dependent) : \
- rtree_child_node_tryread(&node[subkey], \
- dependent); \
- } else { \
- leaf = init_missing ? \
- rtree_child_leaf_read(tsdn, rtree, \
- &node[subkey], level, dependent) : \
- rtree_child_leaf_tryread(&node[subkey], \
- dependent); \
- } \
- }
- /*
- * Cache replacement upon hard lookup (i.e. L1 & L2 rtree cache miss):
- * (1) evict last entry in L2 cache; (2) move the collision slot from L1
- * cache down to L2; and 3) fill L1.
- */
-#define RTREE_GET_LEAF(level) { \
- assert(level == RTREE_HEIGHT-1); \
- if (!dependent && unlikely(!rtree_leaf_valid(leaf))) { \
- return NULL; \
- } \
- if (RTREE_CTX_NCACHE_L2 > 1) { \
- memmove(&rtree_ctx->l2_cache[1], \
- &rtree_ctx->l2_cache[0], \
- sizeof(rtree_ctx_cache_elm_t) * \
- (RTREE_CTX_NCACHE_L2 - 1)); \
- } \
- size_t slot = rtree_cache_direct_map(key); \
- rtree_ctx->l2_cache[0].leafkey = \
- rtree_ctx->cache[slot].leafkey; \
- rtree_ctx->l2_cache[0].leaf = \
- rtree_ctx->cache[slot].leaf; \
- uintptr_t leafkey = rtree_leafkey(key); \
- rtree_ctx->cache[slot].leafkey = leafkey; \
- rtree_ctx->cache[slot].leaf = leaf; \
- uintptr_t subkey = rtree_subkey(key, level); \
- return &leaf[subkey]; \
- }
- if (RTREE_HEIGHT > 1) {
- RTREE_GET_CHILD(0)
- }
- if (RTREE_HEIGHT > 2) {
- RTREE_GET_CHILD(1)
- }
- if (RTREE_HEIGHT > 3) {
- for (unsigned i = 2; i < RTREE_HEIGHT-1; i++) {
- RTREE_GET_CHILD(i)
- }
- }
- RTREE_GET_LEAF(RTREE_HEIGHT-1)
-#undef RTREE_GET_CHILD
-#undef RTREE_GET_LEAF
- not_reached();
-}
+static rtree_leaf_elm_t *
+rtree_child_leaf_tryread(rtree_node_elm_t *elm, bool dependent) {
+ rtree_leaf_elm_t *leaf;
-void
-rtree_ctx_data_init(rtree_ctx_t *ctx) {
- for (unsigned i = 0; i < RTREE_CTX_NCACHE; i++) {
- rtree_ctx_cache_elm_t *cache = &ctx->cache[i];
- cache->leafkey = RTREE_LEAFKEY_INVALID;
- cache->leaf = NULL;
- }
- for (unsigned i = 0; i < RTREE_CTX_NCACHE_L2; i++) {
- rtree_ctx_cache_elm_t *cache = &ctx->l2_cache[i];
- cache->leafkey = RTREE_LEAFKEY_INVALID;
- cache->leaf = NULL;
- }
+ if (dependent) {
+ leaf = (rtree_leaf_elm_t *)atomic_load_p(&elm->child,
+ ATOMIC_RELAXED);
+ } else {
+ leaf = (rtree_leaf_elm_t *)atomic_load_p(&elm->child,
+ ATOMIC_ACQUIRE);
+ }
+
+ assert(!dependent || leaf != NULL);
+ return leaf;
}
+
+static rtree_leaf_elm_t *
+rtree_child_leaf_read(tsdn_t *tsdn, rtree_t *rtree, rtree_node_elm_t *elm,
+ unsigned level, bool dependent) {
+ rtree_leaf_elm_t *leaf;
+
+ leaf = rtree_child_leaf_tryread(elm, dependent);
+ if (!dependent && unlikely(!rtree_leaf_valid(leaf))) {
+ leaf = rtree_leaf_init(tsdn, rtree, &elm->child);
+ }
+ assert(!dependent || leaf != NULL);
+ return leaf;
+}
+
+rtree_leaf_elm_t *
+rtree_leaf_elm_lookup_hard(tsdn_t *tsdn, rtree_t *rtree, rtree_ctx_t *rtree_ctx,
+ uintptr_t key, bool dependent, bool init_missing) {
+ rtree_node_elm_t *node;
+ rtree_leaf_elm_t *leaf;
+#if RTREE_HEIGHT > 1
+ node = rtree->root;
+#else
+ leaf = rtree->root;
+#endif
+
+ if (config_debug) {
+ uintptr_t leafkey = rtree_leafkey(key);
+ for (unsigned i = 0; i < RTREE_CTX_NCACHE; i++) {
+ assert(rtree_ctx->cache[i].leafkey != leafkey);
+ }
+ for (unsigned i = 0; i < RTREE_CTX_NCACHE_L2; i++) {
+ assert(rtree_ctx->l2_cache[i].leafkey != leafkey);
+ }
+ }
+
+#define RTREE_GET_CHILD(level) { \
+ assert(level < RTREE_HEIGHT-1); \
+ if (level != 0 && !dependent && \
+ unlikely(!rtree_node_valid(node))) { \
+ return NULL; \
+ } \
+ uintptr_t subkey = rtree_subkey(key, level); \
+ if (level + 2 < RTREE_HEIGHT) { \
+ node = init_missing ? \
+ rtree_child_node_read(tsdn, rtree, \
+ &node[subkey], level, dependent) : \
+ rtree_child_node_tryread(&node[subkey], \
+ dependent); \
+ } else { \
+ leaf = init_missing ? \
+ rtree_child_leaf_read(tsdn, rtree, \
+ &node[subkey], level, dependent) : \
+ rtree_child_leaf_tryread(&node[subkey], \
+ dependent); \
+ } \
+ }
+ /*
+ * Cache replacement upon hard lookup (i.e. L1 & L2 rtree cache miss):
+ * (1) evict last entry in L2 cache; (2) move the collision slot from L1
+ * cache down to L2; and 3) fill L1.
+ */
+#define RTREE_GET_LEAF(level) { \
+ assert(level == RTREE_HEIGHT-1); \
+ if (!dependent && unlikely(!rtree_leaf_valid(leaf))) { \
+ return NULL; \
+ } \
+ if (RTREE_CTX_NCACHE_L2 > 1) { \
+ memmove(&rtree_ctx->l2_cache[1], \
+ &rtree_ctx->l2_cache[0], \
+ sizeof(rtree_ctx_cache_elm_t) * \
+ (RTREE_CTX_NCACHE_L2 - 1)); \
+ } \
+ size_t slot = rtree_cache_direct_map(key); \
+ rtree_ctx->l2_cache[0].leafkey = \
+ rtree_ctx->cache[slot].leafkey; \
+ rtree_ctx->l2_cache[0].leaf = \
+ rtree_ctx->cache[slot].leaf; \
+ uintptr_t leafkey = rtree_leafkey(key); \
+ rtree_ctx->cache[slot].leafkey = leafkey; \
+ rtree_ctx->cache[slot].leaf = leaf; \
+ uintptr_t subkey = rtree_subkey(key, level); \
+ return &leaf[subkey]; \
+ }
+ if (RTREE_HEIGHT > 1) {
+ RTREE_GET_CHILD(0)
+ }
+ if (RTREE_HEIGHT > 2) {
+ RTREE_GET_CHILD(1)
+ }
+ if (RTREE_HEIGHT > 3) {
+ for (unsigned i = 2; i < RTREE_HEIGHT-1; i++) {
+ RTREE_GET_CHILD(i)
+ }
+ }
+ RTREE_GET_LEAF(RTREE_HEIGHT-1)
+#undef RTREE_GET_CHILD
+#undef RTREE_GET_LEAF
+ not_reached();
+}
+
+void
+rtree_ctx_data_init(rtree_ctx_t *ctx) {
+ for (unsigned i = 0; i < RTREE_CTX_NCACHE; i++) {
+ rtree_ctx_cache_elm_t *cache = &ctx->cache[i];
+ cache->leafkey = RTREE_LEAFKEY_INVALID;
+ cache->leaf = NULL;
+ }
+ for (unsigned i = 0; i < RTREE_CTX_NCACHE_L2; i++) {
+ rtree_ctx_cache_elm_t *cache = &ctx->l2_cache[i];
+ cache->leafkey = RTREE_LEAFKEY_INVALID;
+ cache->leaf = NULL;
+ }
+}