[Rust] Rename mem-cache to sglang-radix-tree (#37290)

rust/Cargo.toml

@@ -5,12 +5,12 @@ members = [
     "sglang-mm",
     "sglang-server"
 ]
-exclude = ["mem-cache"]
+exclude = ["sglang-radix-tree"]
 
 [workspace.metadata.sglang]
 # Extension crates that intentionally cannot share this workspace's dependency
-# graph (mem-cache currently uses the tch-compatible PyO3 0.22 API).
-extension-manifests = ["mem-cache/Cargo.toml"]
+# graph (sglang-radix-tree currently uses the tch-compatible PyO3 0.22 API).
+extension-manifests = ["sglang-radix-tree/Cargo.toml"]
 
 [workspace.package]
 version = "0.1.0"

rust/sglang-radix-tree/Cargo.lock

@@ -322,17 +322,6 @@ dependencies = [
  "rawpointer",
 ]
 
-[[package]]
-name = "mem_cache"
-version = "0.1.0"
-dependencies = [
- "hashbrown",
- "pyo3",
- "sha2",
- "tch",
- "thiserror",
-]
-
 [[package]]
 name = "memchr"
 version = "2.8.3"
@@ -653,6 +642,17 @@ dependencies = [
  "zmij",
 ]
 
+[[package]]
+name = "sglang-radix-tree"
+version = "0.1.0"
+dependencies = [
+ "hashbrown",
+ "pyo3",
+ "sha2",
+ "tch",
+ "thiserror",
+]
+
 [[package]]
 name = "sha1"
 version = "0.10.7"

rust/sglang-radix-tree/Cargo.toml

@@ -1,5 +1,5 @@
 [package]
-name = "mem_cache"
+name = "sglang-radix-tree"
 version = "0.1.0"
 edition = "2024"
 description = "Rust tree core for the Unified Radix Cache"

rust/sglang-radix-tree/README.md

@@ -1,4 +1,4 @@
-# mem-cache
+# sglang-radix-tree
 
 Rust tree core for the Unified Radix Cache, covering Full attention, sliding window attention, and Mamba components. It implements the tree side of the `UnifiedTreeCoreInterface` split — match/insert walks, node arena, locks, eviction walks, HiCache backup/load-back specs, and KV events — behind a PyO3 binding, while the cache orchestration stays in Python.
 
@@ -20,7 +20,7 @@ and `torch_2_13_compat.h` covers two alignment APIs removed in PyTorch 2.13.
 
 ```bash
 # Build (libtorch from the installed torch package):
-cd rust/mem-cache
+cd rust/sglang-radix-tree
 LIBTORCH_USE_PYTORCH=1 \
   LIBTORCH_BYPASS_VERSION_CHECK=1 \
   CXXFLAGS="-include $PWD/torch_2_13_compat.h" \