add libc.memset

4 files changed, 65 insertions, 0 deletions

diff --git a/core/src/xmake/engine.c b/core/src/xmake/engine.c
index 2aa8f17cd..63196680d 100644
--- a/core/src/xmake/engine.c
+++ b/core/src/xmake/engine.c
@@ -225,6 +225,7 @@ tb_int_t xm_semver_select(lua_State* lua);
 tb_int_t xm_libc_malloc(lua_State* lua);
 tb_int_t xm_libc_free(lua_State* lua);
 tb_int_t xm_libc_memcpy(lua_State* lua);
+tb_int_t xm_libc_memset(lua_State* lua);
 
 #ifdef XM_CONFIG_API_HAVE_CURSES
 // register curses
@@ -423,6 +424,7 @@ static luaL_Reg const g_libc_functions[] =
     { "malloc",         xm_libc_malloc      }
 ,   { "free",           xm_libc_free        }
 ,   { "memcpy",         xm_libc_memcpy      }
+,   { "memset",         xm_libc_memset      }
 ,   { tb_null,          tb_null             }
 };
 
diff --git a/core/src/xmake/libc/memset.c b/core/src/xmake/libc/memset.c
new file mode 100644
index 000000000..c3171bace
--- /dev/null
+++ b/core/src/xmake/libc/memset.c
@@ -0,0 +1,53 @@
+/*!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        memset.c
+ *
+ */
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * trace
+ */
+#define TB_TRACE_MODULE_NAME    "memset"
+#define TB_TRACE_MODULE_DEBUG   (0)
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * includes
+ */
+#include "prefix.h"
+
+/* //////////////////////////////////////////////////////////////////////////////////////
+ * implementation
+ */
+tb_int_t xm_libc_memset(lua_State* lua)
+{
+    // check
+    tb_assert_and_check_return_val(lua, 0);
+
+    // check arguments?
+    if (!xm_lua_ispointer(lua, 1) || !lua_isnumber(lua, 2) || !lua_isnumber(lua, 3))
+        xm_libc_return_error(lua, "memset(invalid args)!");
+
+    // do memset
+    tb_pointer_t data = (tb_pointer_t)xm_lua_topointer(lua, 1);
+    tb_char_t ch = (tb_char_t)lua_tointeger(lua, 2);
+    tb_int_t size = (tb_int_t)lua_tointeger(lua, 3);
+    if (data && size > 0)
+        tb_memset(data, ch, size);
+    return 0;
+}
+
diff --git a/core/src/xmake/makefile b/core/src/xmake/makefile
index 2c5eefa01..84b6a03c5 100644
--- a/core/src/xmake/makefile
+++ b/core/src/xmake/makefile
@@ -118,6 +118,7 @@ xmake_C_FILES 			+= \
 						readline/clear_history \
 						libc/malloc \
 						libc/free \
+						libc/memset \
 						libc/memcpy
 
 iswin =
diff --git a/xmake/core/base/libc.lua b/xmake/core/base/libc.lua
index 4b3a9f3ec..ff6a88401 100644
--- a/xmake/core/base/libc.lua
+++ b/xmake/core/base/libc.lua
@@ -25,6 +25,7 @@ local libc = libc or {}
 libc._malloc = libc._malloc or libc.malloc
 libc._free   = libc._free or libc.free
 libc._memcpy = libc._memcpy or libc.memcpy
+libc._memset = libc._memset or libc.memset
 
 -- load modules
 local ffi = xmake._LUAJIT and require("ffi")
@@ -61,5 +62,13 @@ function libc.memcpy(dst, src, size)
     end
 end
 
+function libc.memset(data, ch, size)
+    if ffi then
+        return ffi.fill(data, size, ch)
+    else
+        return libc._memset(data, ch, size)
+    end
+end
+
 -- return module: libc
 return libc