fix vt100 cursor pos race

2 files changed, 33 insertions, 34 deletions

diff --git a/src/line/getter.cc b/src/line/getter.cc
index 432ddca..aa05d6b 100644
--- a/src/line/getter.cc
+++ b/src/line/getter.cc
@@ -38,36 +38,36 @@ int T_line_editor::get_terminal_pos_line_end()
 }
 
 
-T_position T_line_editor::get_cursor_position()
-{
-    char c;
-    string buffer;
-    T_position pos;
-    int row, col;
-    tcflush(STDIN_FILENO, TCIFLUSH);
-    cout << "\x1b[6n" << flush;
-    while (read(STDIN_FILENO, &c, 1) == 1)
-    {
-        if (c == 'R') break;
-        buffer += c;
-    }
-    if (buffer.size() <= 2 || buffer[0] != '\x1b' || buffer[1] != '[')
-    {
-        pos.row = -1;
-        pos.col = -1;
-        return pos;
-    }
-    if ((sscanf(buffer.c_str(), "\x1b[%d;%d", &row, &col)) != 2)
-    {
-        pos.row = -1;
-        pos.col = -1;
-        return pos;
-    }
-    pos.row = row;
-    pos.col = col;
-    // print("row {}, col {}\r\n", row, col);
-    // fflush(stdout);
-    return pos;
-} 
+// T_position T_line_editor::get_cursor_position()
+// {
+//     char c;
+//     string buffer;
+//     T_position pos;
+//     int row, col;
+//     tcflush(STDIN_FILENO, TCIFLUSH);
+//     cout << "\x1b[6n" << flush;
+//     while (read(STDIN_FILENO, &c, 1) == 1)
+//     {
+//         if (c == 'R') break;
+//         buffer += c;
+//     }
+//     if (buffer.size() <= 2 || buffer[0] != '\x1b' || buffer[1] != '[')
+//     {
+//         pos.row = -1;
+//         pos.col = -1;
+//         return pos;
+//     }
+//     if ((sscanf(buffer.c_str(), "\x1b[%d;%d", &row, &col)) != 2)
+//     {
+//         pos.row = -1;
+//         pos.col = -1;
+//         return pos;
+//     }
+//     pos.row = row;
+//     pos.col = col;
+//     // print("row {}, col {}\r\n", row, col);
+//     // fflush(stdout);
+//     return pos;
+// } 
     
 }
\ No newline at end of file
diff --git a/src/line/input.cc b/src/line/input.cc
index 0a01760..1b9520b 100644
--- a/src/line/input.cc
+++ b/src/line/input.cc
@@ -18,15 +18,14 @@ void T_line_editor::clear_below()
     print("\x1b[0J");
 }
 
-string T_line_editor::readline()
+string T_line_editor::readline(int prompt_len)
 {
+    prompt_pos = prompt_len+1;
     update_window_size();
     history_vec.push_back("");
     history_index = get_last_index();
     reset_editor();
 
-    T_position pos = get_cursor_position();
-    prompt_pos = pos.col;
     char c; int src;
     while (non_block_read_char(&c, &src) == 1)
     {