Jemalloc updated to 3.0.0.

[redis.git] / deps / jemalloc.orig / src / rtree.c

diff --git a/deps/jemalloc.orig/src/rtree.c b/deps/jemalloc.orig/src/rtree.c
new file mode 100644 (file)
index 0000000..eb0ff1e
--- /dev/null
+++ b/deps/jemalloc.orig/src/rtree.c
@@ -0,0 +1,46 @@
+#define        JEMALLOC_RTREE_C_
+#include "jemalloc/internal/jemalloc_internal.h"
+
+rtree_t *
+rtree_new(unsigned bits)
+{
+       rtree_t *ret;
+       unsigned bits_per_level, height, i;
+
+       bits_per_level = ffs(pow2_ceil((RTREE_NODESIZE / sizeof(void *)))) - 1;
+       height = bits / bits_per_level;
+       if (height * bits_per_level != bits)
+               height++;
+       assert(height * bits_per_level >= bits);
+
+       ret = (rtree_t*)base_alloc(offsetof(rtree_t, level2bits) +
+           (sizeof(unsigned) * height));
+       if (ret == NULL)
+               return (NULL);
+       memset(ret, 0, offsetof(rtree_t, level2bits) + (sizeof(unsigned) *
+           height));
+
+       if (malloc_mutex_init(&ret->mutex)) {
+               /* Leak the rtree. */
+               return (NULL);
+       }
+       ret->height = height;
+       if (bits_per_level * height > bits)
+               ret->level2bits[0] = bits % bits_per_level;
+       else
+               ret->level2bits[0] = bits_per_level;
+       for (i = 1; i < height; i++)
+               ret->level2bits[i] = bits_per_level;
+
+       ret->root = (void**)base_alloc(sizeof(void *) << ret->level2bits[0]);
+       if (ret->root == NULL) {
+               /*
+                * We leak the rtree here, since there's no generic base
+                * deallocation.
+                */
+               return (NULL);
+       }
+       memset(ret->root, 0, sizeof(void *) << ret->level2bits[0]);
+
+       return (ret);
+}