add generic helper class for calling functions in gui thread

[lyx.git] / src / support / os.h

diff --git a/src/support/os.h b/src/support/os.h
index 25176729fd76e6908b3b526247b2269e6ffa459e..38517d8bda33d830afe94b20f67c08820dfb5ca4 100644 (file)
--- a/src/support/os.h
+++ b/src/support/os.h
@@ -27,26 +27,28 @@ enum shell_type {
        CMD_EXE
 };
 
-enum io_channel {
-       STDIN = 0,
-       STDOUT,
-       STDERR
-};
-
 enum path_case {
        CASE_UNCHANGED,
        CASE_ADJUSTED
 };
 
+enum file_access {
+       EXISTING,
+       CREATE
+};
+
 /// Do some work just once.
 void init(int argc, char * argv[]);
 
+/// Returns the i-th program argument in utf8 encoding.
+std::string utf8_argv(int i);
+
+/// Removes from the internal copy \p num program arguments starting from \p i.
+void remove_internal_args(int i, int num);
+
 /// Returns the name of the NULL device (/dev/null, null).
 std::string const & nulldev();
 
-/// Tells whether \p channel is connected to a terminal or not. 
-bool is_terminal(io_channel channel);
-
 /// Returns "/" on *nix, "C:/", etc on Windows.
 std::string current_root();
 
@@ -77,8 +79,10 @@ std::string internal_path(std::string const & p);
 /// On Windows, this is achieved by using the short form of the path,
 /// which can be safely passed to standard I/O functions expecting narrow
 /// char paths even when the path contains non-ascii chars.
+/// As the short form is only available for existing files, if the file is
+/// to be accessed for writing, \param how should be set to CREATE.
 /// \p p and the return value are encoded in utf8.
-std::string safe_internal_path(std::string const & p);
+std::string safe_internal_path(std::string const & p, file_access how = EXISTING);
 
 /// Converts a unix style path list to host OS style.
 /// \p p and the return value are encoded in utf8.