ThreadNotification


Object Hierarchy:

Object hierarchy for ThreadNotification

Description:

public struct ThreadNotification

A notification to be read through the IOChannel which is returned by get_io_channel, for example:

gboolean
wrapper_ioc_cb (GIOChannel *source, GIOCondition condition, gpointer data)
{
GIOStatus status;
gsize nread;
GdaThreadNotification notif;
if (condition & G_IO_IN) {
status = g_io_channel_read_chars (source, (gchar*) &notif, sizeof (notif), &nread, NULL);
if ((status != G_IO_STATUS_NORMAL) || (nread != sizeof (notif)))
goto onerror;
switch (notif.type) {
case GDA_THREAD_NOTIFICATION_JOB:
check_for_wrapper_result (bcnc);
break;
case GDA_THREAD_NOTIFICATION_SIGNAL:
gda_thread_wrapper_iterate (bcnc->priv->wrapper, FALSE);
break;
default:
goto onerror;
break;
}
}
if (condition & (G_IO_ERR | G_IO_HUP | G_IO_NVAL))
goto onerror;
return TRUE; // keep callback

onerror:
g_io_channel_shutdown (bcnc->priv->ioc, FALSE, NULL);
return FALSE; // removed callback
}

{
[...]
GIOChannel *ioc;
ioc = gda_thread_wrapper_get_io_channel (wrapper);
if (!ioc)
[handle error]
else {
guint watch_id;
watch_id = g_io_add_watch (ioc, G_IO_IN | G_IO_HUP | G_IO_ERR | G_IO_NVAL,
(GIOFunc) wrapper_ioc_cb, NULL);
}
}


Namespace: Gda
Package: libgda-5.0

Content:

Fields: