diff -up scim-pinyin-0.5.91/src/scim_pinyin_imengine.cpp.orig scim-pinyin-0.5.91/src/scim_pinyin_imengine.cpp

--- scim-pinyin-0.5.91/src/scim_pinyin_imengine.cpp.orig	2007-11-09 16:51:49.000000000 +0800

+++ scim-pinyin-0.5.91/src/scim_pinyin_imengine.cpp	2007-11-09 16:52:06.000000000 +0800

@@ -656,6 +656,11 @@ PinyinFactory::refresh ()

 void

 PinyinFactory::save_user_library ()

 {

+    String tmp_user_pinyin_table = m_user_pinyin_table + ".tmp";

+    String tmp_user_phrase_lib = m_user_phrase_lib + ".tmp";

+    String tmp_user_pinyin_phrase_lib = m_user_pinyin_phrase_lib + ".tmp";

+    String tmp_user_pinyin_phrase_index = m_user_pinyin_phrase_index + ".tmp";

+

     // First make the user data directory.

     if (access (m_user_data_directory.c_str (), R_OK | W_OK) != 0) {

         mkdir (m_user_data_directory.c_str (), S_IRUSR | S_IWUSR | S_IXUSR);

@@ -670,11 +675,23 @@ PinyinFactory::save_user_library ()

         lib->optimize_phrase_frequencies ();

     }

-    m_pinyin_global.save_pinyin_table (m_user_pinyin_table.c_str (), m_user_data_binary);

-    m_pinyin_global.save_user_phrase_lib (m_user_phrase_lib.c_str (),

-                                          m_user_pinyin_phrase_lib.c_str (),

-                                          m_user_pinyin_phrase_index.c_str (),

+    // save user data in tmp files

+    m_pinyin_global.save_pinyin_table (tmp_user_pinyin_table.c_str (), m_user_data_binary);

+    m_pinyin_global.save_user_phrase_lib (tmp_user_phrase_lib.c_str (),

+                                          tmp_user_pinyin_phrase_lib.c_str (),

+                                          tmp_user_pinyin_phrase_index.c_str (),

                                           m_user_data_binary);

+

+   // unlink old user data files, and rename tmp files.

+   unlink (m_user_pinyin_table.c_str ());

+   rename (tmp_user_pinyin_table.c_str (), m_user_pinyin_table.c_str ());

+   

+   unlink (m_user_phrase_lib.c_str ());

+   unlink (m_user_pinyin_phrase_lib.c_str ());

+   unlink (m_user_pinyin_phrase_index.c_str ());

+   rename (tmp_user_phrase_lib.c_str (), m_user_phrase_lib.c_str ());

+   rename (tmp_user_pinyin_phrase_lib.c_str (), m_user_pinyin_phrase_lib.c_str ());

+   rename (tmp_user_pinyin_phrase_index.c_str (), m_user_pinyin_phrase_index.c_str ());

 }

 void