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gio/ docs/reference/gio Merged gio-standalone into glib.
2007-11-26 Alexander Larsson <alexl@redhat.com> * Makefile.am: * configure.in: * gio-2.0-uninstalled.pc.in: * gio-2.0.pc.in: * gio-unix-2.0-uninstalled.pc.in: * gio-unix-2.0.pc.in: * gio/ * docs/reference/gio Merged gio-standalone into glib. * glib/glibintl.h: * glib/gutils.c: Export glib_gettext so that gio can use it Add P_ (using same domain for now) Add I_ as g_intern_static_string svn path=/trunk/; revision=5941
This commit is contained in:
Alexander Larsson
committed by
Alexander Larsson
Alexander Larsson
parent
8bdbcb9213
commit
3781343738
245
gio/fam/fam-helper.c
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245
gio/fam/fam-helper.c
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/* GIO - GLib Input, Output and Streaming Library
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*
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* Copyright (C) 2006-2007 Red Hat, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General
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* Public License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place, Suite 330,
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* Boston, MA 02111-1307, USA.
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*
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* Authors: Alexander Larsson <alexl@redhat.com>
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* John McCutchan <john@johnmccutchan.com>
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* Sebastian Dröge <slomo@circular-chaos.org>
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*/
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#include "config.h"
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#include <fam.h>
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#include <gio/gfilemonitor.h>
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#include <gio/gdirectorymonitor.h>
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#include "fam-helper.h"
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static FAMConnection* fam_connection = NULL;
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static gint fam_watch_id = 0;
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G_LOCK_DEFINE_STATIC(fam_connection);
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struct _fam_sub
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{
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gchar *pathname;
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gboolean directory;
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gpointer user_data;
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gboolean cancelled;
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FAMRequest request;
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};
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static GFileMonitorEvent
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fam_event_to_file_monitor_event (enum FAMCodes code)
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{
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switch (code)
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{
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case FAMChanged:
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return G_FILE_MONITOR_EVENT_CHANGED;
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break;
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case FAMDeleted:
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return G_FILE_MONITOR_EVENT_DELETED;
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break;
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case FAMCreated:
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return G_FILE_MONITOR_EVENT_CREATED;
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break;
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default:
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return -1;
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break;
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}
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}
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static gboolean
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fam_do_iter_unlocked (void)
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{
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while (fam_connection != NULL && FAMPending (fam_connection)) {
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FAMEvent ev;
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fam_sub* sub = NULL;
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gboolean cancelled;
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if (FAMNextEvent (fam_connection, &ev) != 1) {
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FAMClose (fam_connection);
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g_free (fam_connection);
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g_source_remove (fam_watch_id);
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fam_watch_id = 0;
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fam_connection = NULL;
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return FALSE;
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}
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sub = (fam_sub*)ev.userdata;
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cancelled = sub->cancelled;
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if (ev.code == FAMAcknowledge && cancelled)
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{
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g_free (sub);
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continue;
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}
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if (cancelled)
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continue;
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if (sub->directory)
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{
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GDirectoryMonitor* monitor = G_DIRECTORY_MONITOR (sub->user_data);
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GFileMonitorEvent eflags = fam_event_to_file_monitor_event (ev.code);
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gchar* path = NULL;
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GFile *child, *parent;
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/* unsupported event */
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if (eflags == -1)
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continue;
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if (ev.filename[0] == '/')
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path = g_strdup (ev.filename);
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else
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path = g_strdup_printf ("%s/%s", sub->pathname, ev.filename);
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child = g_file_new_for_path (path);
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parent = g_file_get_parent (child);
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g_directory_monitor_emit_event (monitor, child, NULL, eflags);
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g_free (path);
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g_object_unref (child);
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g_object_unref (parent);
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} else {
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GFile *child;
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GFileMonitor* monitor = G_FILE_MONITOR (sub->user_data);
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GFileMonitorEvent eflags = fam_event_to_file_monitor_event (ev.code);
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gchar* path = NULL;
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if (eflags == -1)
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continue;
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path = g_strdup (ev.filename);
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child = g_file_new_for_path (path);
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g_file_monitor_emit_event (monitor, child, NULL, eflags);
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g_free (path);
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g_object_unref (child);
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}
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}
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return TRUE;
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}
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static gboolean
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fam_callback (GIOChannel *source,
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GIOCondition condition,
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gpointer data)
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{
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gboolean res;
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G_LOCK (fam_connection);
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res = fam_do_iter_unlocked ();
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G_UNLOCK (fam_connection);
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return res;
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}
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gboolean
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_fam_sub_startup (void)
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{
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GIOChannel *ioc;
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G_LOCK (fam_connection);
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if (fam_connection == NULL) {
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fam_connection = g_new0 (FAMConnection, 1);
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if (FAMOpen2 (fam_connection, "gvfs user") != 0) {
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g_warning ("FAMOpen failed, FAMErrno=%d\n", FAMErrno);
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g_free (fam_connection);
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fam_connection = NULL;
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G_UNLOCK (fam_connection);
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return FALSE;
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}
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#ifdef HAVE_FAM_NO_EXISTS
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/* This is a gamin extension that avoids sending all the Exists event for dir monitors */
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FAMNoExists (fam_connection);
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#endif
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ioc = g_io_channel_unix_new (FAMCONNECTION_GETFD(fam_connection));
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fam_watch_id = g_io_add_watch (ioc,
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G_IO_IN | G_IO_HUP | G_IO_ERR,
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fam_callback, fam_connection);
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g_io_channel_unref (ioc);
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}
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G_UNLOCK (fam_connection);
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return TRUE;
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}
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fam_sub*
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_fam_sub_add (const gchar* pathname,
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gboolean directory,
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gpointer user_data)
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{
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fam_sub *sub;
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if (!_fam_sub_startup ())
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return NULL;
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sub = g_new0 (fam_sub, 1);
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sub->pathname = g_strdup (pathname);
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sub->directory = directory;
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sub->user_data = user_data;
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G_LOCK (fam_connection);
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/* We need to queue up incoming messages to avoid blocking on write
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* if there are many monitors being canceled */
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fam_do_iter_unlocked ();
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if (fam_connection == NULL) {
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G_UNLOCK (fam_connection);
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return NULL;
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}
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if (directory)
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FAMMonitorDirectory (fam_connection, pathname, &sub->request, sub);
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else
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FAMMonitorFile (fam_connection, pathname, &sub->request, sub);
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G_UNLOCK (fam_connection);
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return sub;
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}
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gboolean
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_fam_sub_cancel (fam_sub* sub)
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{
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if (sub->cancelled)
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return TRUE;
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sub->cancelled = TRUE;
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G_LOCK (fam_connection);
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/* We need to queue up incoming messages to avoid blocking on write
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* if there are many monitors being canceled */
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fam_do_iter_unlocked ();
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if (fam_connection == NULL) {
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G_UNLOCK (fam_connection);
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return FALSE;
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}
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FAMCancelMonitor (fam_connection, &sub->request);
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G_UNLOCK (fam_connection);
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return TRUE;
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}
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void
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_fam_sub_free (fam_sub* sub)
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{
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g_free (sub->pathname);
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g_free (sub);
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}
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