Is this a bug in the GIOChannel g_io_channel_write_chars() function?

[Jeff Franks <jcf tpg com au>]

Hi,

I'm trying to use the GLib mainloop-test example and came across this 
problem. Is it a bug?

In mainloop-test.c in the GLIb tests directory the following function works:

gboolean
write_all (GIOChannel *channel, char *buf, gsize len)
{
 gsize bytes_written = 0;
 gsize count;
 GIOError err;

 while (bytes_written < len)
   {
     err = g_io_channel_write (channel, buf + bytes_written, len - 
bytes_written, &count);
     if (err && err != G_IO_ERROR_AGAIN)
   return FALSE;

     bytes_written += count;
   }

 return TRUE;
}

However g_io_channel_write() is deprecated. When I repalce it with 
g_io_channel_write_chars() and update the code appropriately, to this:

gboolean
write_all (GIOChannel *channel, char *buf, gsize len)
{
 gsize bytes_written = 0;
 gsize count;
 GIOStatus status;

 while (bytes_written < len)
   {
     status = g_io_channel_write_chars (channel, buf + bytes_written, 
len - bytes_written, &count, NULL);
     if (status != G_IO_STATUS_AGAIN)
   return FALSE;

     bytes_written += count;
   }

 return TRUE;
}

It does not work. instead you get this compiler error:

GLib-ERROR **: file giochannel.c: line 2113 (g_io_channel_write_chars): 
should not be reached
aborting...
Trace/breakpoint trap

I've tried to trace what is happening but g_io_channel_write_chars() is 
a very big function.

Any ideas,

Jeff Franks.