On Thursday 06 October 2005 19:16, Colossus wrote:
> thanks for replying. I don not read with the Unix "read" function but
> with G_IO_Channel glib functions:
>
> static gboolean ExtractToDifferentLocation (GIOChannel *ioc,
> GIOCondition cond, gpointer data)
> {
> if (cond & (G_IO_IN | G_IO_PRI) )
> {
> //while (gtk_events_pending() )
> //gtk_main_iteration();
> gchar *line = NULL;
> g_io_channel_read_line ( ioc, &line, NULL, NULL, NULL );
> if (line != NULL )
> {
> //Write the content the bzip extracted file, line after
> line, to
> the file choosen by the user
> fwrite ( line, 1, strlen(line) , fd );
> g_free (line);
> }
> return TRUE;
> }
> else if (cond & (G_IO_ERR | G_IO_HUP | G_IO_NVAL) )
> {
> fclose ( fd );
> g_io_channel_unref (ioc);
> g_io_channel_shutdown ( ioc,TRUE,NULL );
> g_spawn_close_pid ( child_pid );
> return FALSE;
> }
> }
The following things come to mind in relation to your code:
1. Have you set the GIOChannel encoding to null (necessary to read binary
data rather than text)? (Read the documentation for
g_io_channel_unix_new().)
2. If it is binary data you are reading, then you should not use
g_io_channel_read_line() (whether there are line marker characters in the
data stream would be entirely arbitrary in that case). If you insist on
using GIOChannel then use g_io_channel_read_chars() (after turning off code
conversion).
3. You are not doing any error checking, and in particular you are not
checking the return value of the GIOChannel read function.
Chris
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