add service mgmt lib & utils

1 files changed, 41 insertions, 0 deletions

diff --git a/utils/libservice/src/windows_error.cpp b/utils/libservice/src/windows_error.cpp
new file mode 100644
index 0000000..6cc7302
--- /dev/null
+++ b/utils/libservice/src/windows_error.cpp
@@ -0,0 +1,41 @@
+/**
+ * \author Egor Tensin <Egor.Tensin@gmail.com>
+ * \date 2015
+ * \copyright This file is licensed under the terms of the MIT License.
+ *            See LICENSE.txt for details.
+ */
+
+#include "libservice/windows_error.hpp"
+
+#include <Windows.h>
+
+#include <string>
+
+namespace libservice
+{
+    std::string WinErrorCategory::message(int code) const
+    {
+        char* buf_ptr;
+
+        DWORD written = FormatMessageA(
+            FORMAT_MESSAGE_ALLOCATE_BUFFER
+            | FORMAT_MESSAGE_FROM_SYSTEM
+            | FORMAT_MESSAGE_IGNORE_INSERTS,
+            NULL,
+            code,
+            MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT),
+            reinterpret_cast<char*>(&buf_ptr),
+            0,
+            NULL);
+
+        if (0 == written)
+        {
+            LocalFree(buf_ptr);
+            return "Couldn't format error message";
+        }
+
+        std::string str(buf_ptr, written - 2);
+        LocalFree(buf_ptr);
+        return str;
+    }
+}