add libc.free

4 files changed, 63 insertions, 1 deletions

diff --git a/core/src/xmake/engine.c b/core/src/xmake/engine.c
index 0c52f6cf0..dcfdd428c 100644
--- a/core/src/xmake/engine.c
+++ b/core/src/xmake/engine.c
@@ -223,6 +223,7 @@ tb_int_t xm_semver_select(lua_State* lua);
 
 // the libc functions
 tb_int_t xm_libc_malloc(lua_State* lua);
+tb_int_t xm_libc_free(lua_State* lua);
 
 #ifdef XM_CONFIG_API_HAVE_CURSES
 // register curses
@@ -419,6 +420,7 @@ static luaL_Reg const g_semver_functions[] =
 static luaL_Reg const g_libc_functions[] =
 {
     { "malloc",         xm_libc_malloc      }
+,   { "free",           xm_libc_free        }
 ,   { tb_null,          tb_null             }
 };
 
diff --git a/core/src/xmake/libc/free.c b/core/src/xmake/libc/free.c
new file mode 100644
index 000000000..b4d17f1d0
--- /dev/null
+++ b/core/src/xmake/libc/free.c
@@ -0,0 +1,50 @@
+/*!A cross-platform build utility based on Lua
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *     http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ *
+ * Copyright (C) 2015-present, TBOOX Open Source Group.
+ *
+ * @author      ruki
+ * @file        free.c
+ *
+ */
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * trace
+ */
+#define TB_TRACE_MODULE_NAME    "free"
+#define TB_TRACE_MODULE_DEBUG   (0)
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * includes
+ */
+#include "prefix.h"
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * implementation
+ */
+tb_int_t xm_libc_free(lua_State* lua)
+{
+    // check
+    tb_assert_and_check_return_val(lua, 0);
+
+    // check arguments?
+    if (!xm_lua_ispointer(lua, 1))
+        xm_libc_return_error(lua, "free(invalid data)!");
+
+    // do free
+    tb_pointer_t data = (tb_pointer_t)xm_lua_topointer(lua, 1);
+    if (data) tb_free(data);
+    return 0;
+}
+
diff --git a/core/src/xmake/makefile b/core/src/xmake/makefile
index a25bd0936..bd8046c67 100644
--- a/core/src/xmake/makefile
+++ b/core/src/xmake/makefile
@@ -116,7 +116,8 @@ xmake_C_FILES 			+= \
 						readline/history_list \
 						readline/add_history \
 						readline/clear_history \
-						libc/malloc
+						libc/malloc \
+						libc/free
 
 iswin =
 ifeq ($(PLAT),windows)
diff --git a/xmake/core/base/libc.lua b/xmake/core/base/libc.lua
index bac224df3..914065f2e 100644
--- a/xmake/core/base/libc.lua
+++ b/xmake/core/base/libc.lua
@@ -23,6 +23,7 @@ local libc = libc or {}
 
 -- save original interfaces
 libc._malloc = libc._malloc or libc.malloc
+libc._free = libc._free or libc.free
 
 -- load modules
 local ffi = xmake._LUAJIT and require("ffi")
@@ -43,5 +44,13 @@ function libc.malloc(size)
     end
 end
 
+function libc.free(data)
+    if ffi then
+        return ffi.C.free(data)
+    else
+        return libc._free(data)
+    end
+end
+
 -- return module: libc
 return libc