Re: .goutputstream-*?

["A. Walton" <awalton gnome org>]

On Fri, Feb 28, 2014 at 9:42 PM, Wiky <wiiiky yeah net> wrote:

>  Hello,I'm writing a program, which download file from web and save it.
> I use GFileOutputStream to save the data.
>
>  httper->fOutput = g_file_replace(file, NULL, FALSE, G_FILE_CREATE_NONE,
>                                      NULL, NULL);
> ...
>  g_output_stream_write(G_OUTPUT_STREAM(httper->fOutput),
>                           ptr, len, 0, NULL);
>
> And now I find a series of files named .goutputstream-* in the directory.
> What are they used for?


They are used to implement the g_file_replace() operation on local file
systems. The replace operation will overwrite an existing file, but tries
to do so atomically - first write the new file, then move the existing file
over the old file. In order to do that, it writes the new file with a
.goutputstream-XXXXXX temporary name. This is documented in
gio/glocalfileoutputstream.c.

If your program is leaving these files behind, it's probably a bug in your
program. The highly likely case is you forgot to close the stream.

-A. Walton


> Sorry for my English
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