faster startup 1/n

My first 2.4 goal (an easy one while we iron out the bugs in
2.3) is to 
make startup faster.  Mike, that's why I didn't take your
gsti in much 
consideration. 

This is an easy 10%. Another 20% can be gained by rewriting
the way 
VFSHandlers remove temporary files, but I've not finished
doing that.

For the rest, the idea is that we can perform some more work
on saving 
that we currently do when reloading.  So reloading is a
matter of 
mmap'ing the file, copying it, possibly relocating the
pointers in 
memory (but not if the image is loaded in the same place
where it was 
stored!), and that's it.  Should save another 20-30% here
and there.

Paolo

--- orig/libgst/input.c
+++ mod/libgst/input.c
 -331,6
+331,9  _gst_push_stdin_string (void)
  #ifdef HAVE_READLINE
      }

+  if (count == 0)
+    _gst_add_all_symbol_completions ();
+
    newStream = push_new_stream (STREAM_READLINE);

    newStream->st_str.strBase = NULL;    /* force
readline() but no 
free() */
 -1168,9
+1171,6  _gst_initialize_readline (void)

    /* Set up to use read to read from stdin */
    rl_getc_function = readline_getc;
-
-  if (count == 0)
-    _gst_add_all_symbol_completions ();
  }

  #endif /* HAVE_READLINE */


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