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Diffstat (limited to 'src/3rd_party/dbus-1.7.8/bus/dir-watch-inotify.c')
-rw-r--r--src/3rd_party/dbus-1.7.8/bus/dir-watch-inotify.c281
1 files changed, 0 insertions, 281 deletions
diff --git a/src/3rd_party/dbus-1.7.8/bus/dir-watch-inotify.c b/src/3rd_party/dbus-1.7.8/bus/dir-watch-inotify.c
deleted file mode 100644
index 49ebc721b0..0000000000
--- a/src/3rd_party/dbus-1.7.8/bus/dir-watch-inotify.c
+++ /dev/null
@@ -1,281 +0,0 @@
-/* -*- mode: C; c-file-style: "gnu" -*- */
-/* dir-watch-inotify.c OS specific directory change notification for message bus
- *
- * Copyright (C) 2003 Red Hat, Inc.
- * (c) 2006 Mandriva
- *
- * Licensed under the Academic Free License version 2.1
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * You should have received a copy of the GNU General Public License
- * along with this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
- *
- */
-
-/* Be careful, this file is not Linux-only: QNX also uses it */
-
-#include <config.h>
-
-#include <stdlib.h>
-#include <unistd.h>
-#include <fcntl.h>
-/* QNX's inotify is broken, and requires stdint.h to be manually included first */
-#include <stdint.h>
-#include <sys/inotify.h>
-#include <sys/types.h>
-#include <signal.h>
-#include <errno.h>
-
-#include <dbus/dbus-internals.h>
-#include <dbus/dbus-list.h>
-#include <dbus/dbus-watch.h>
-#include "dir-watch.h"
-
-#define MAX_DIRS_TO_WATCH 128
-#define INOTIFY_EVENT_SIZE (sizeof(struct inotify_event))
-#define INOTIFY_BUF_LEN (1024 * (INOTIFY_EVENT_SIZE + 16))
-
-/* use a static array to avoid handling OOM */
-static int wds[MAX_DIRS_TO_WATCH];
-static char *dirs[MAX_DIRS_TO_WATCH];
-static int num_wds = 0;
-static int inotify_fd = -1;
-static DBusWatch *watch = NULL;
-static DBusLoop *loop = NULL;
-
-static dbus_bool_t
-_handle_inotify_watch (DBusWatch *passed_watch, unsigned int flags, void *data)
-{
- char buffer[INOTIFY_BUF_LEN];
- ssize_t ret = 0;
- int i = 0;
-
- ret = read (inotify_fd, buffer, INOTIFY_BUF_LEN);
- if (ret < 0)
- _dbus_verbose ("Error reading inotify event: '%s'\n", _dbus_strerror(errno));
- else if (!ret)
- _dbus_verbose ("Error reading inotify event: buffer too small\n");
- else
- {
- _dbus_verbose ("Sending SIGHUP signal on reception of %ld inotify event(s)\n", (long) ret);
- (void) kill (_dbus_getpid (), SIGHUP);
- }
-
-#ifdef DBUS_ENABLE_VERBOSE_MODE
- while (i < ret)
- {
- struct inotify_event *ev;
-
- ev = (struct inotify_event *) &buffer[i];
- i += INOTIFY_EVENT_SIZE + ev->len;
- if (ev->len)
- _dbus_verbose ("event name: '%s'\n", ev->name);
- _dbus_verbose ("inotify event: wd=%d mask=%u cookie=%u len=%u\n", ev->wd, ev->mask, ev->cookie, ev->len);
- }
-#endif
-
- return TRUE;
-}
-
-#include <stdio.h>
-
-static void
-_set_watched_dirs_internal (DBusList **directories)
-{
- int new_wds[MAX_DIRS_TO_WATCH];
- char *new_dirs[MAX_DIRS_TO_WATCH];
- DBusList *link;
- int i, j, wd;
-
- for (i = 0; i < MAX_DIRS_TO_WATCH; i++)
- {
- new_wds[i] = -1;
- new_dirs[i] = NULL;
- }
-
- i = 0;
- link = _dbus_list_get_first_link (directories);
- while (link != NULL)
- {
- new_dirs[i++] = (char *)link->data;
- link = _dbus_list_get_next_link (directories, link);
- }
-
- /* Look for directories in both the old and new sets, if
- * we find one, move its data into the new set.
- */
- for (i = 0; new_dirs[i]; i++)
- {
- for (j = 0; j < num_wds; j++)
- {
- if (dirs[j] && strcmp (new_dirs[i], dirs[j]) == 0)
- {
- new_wds[i] = wds[j];
- new_dirs[i] = dirs[j];
- wds[j] = -1;
- dirs[j] = NULL;
- break;
- }
- }
- }
-
- /* Any directories we find in "wds" with a nonzero fd must
- * not be in the new set, so perform cleanup now.
- */
- for (j = 0; j < num_wds; j++)
- {
- if (wds[j] != -1)
- {
- inotify_rm_watch (inotify_fd, wds[j]);
- dbus_free (dirs[j]);
- wds[j] = -1;
- dirs[j] = NULL;
- }
- }
-
- for (i = 0; new_dirs[i]; i++)
- {
- if (new_wds[i] == -1)
- {
- /* FIXME - less lame error handling for failing to add a watch; we may need to sleep. */
- wd = inotify_add_watch (inotify_fd, new_dirs[i], IN_CLOSE_WRITE | IN_DELETE | IN_MOVED_TO | IN_MOVED_FROM);
- if (wd < 0)
- {
- /* Not all service directories need to exist. */
- if (errno != ENOENT)
- {
- _dbus_warn ("Cannot setup inotify for '%s'; error '%s'\n", new_dirs[i], _dbus_strerror (errno));
- goto out;
- }
- else
- {
- new_wds[i] = -1;
- new_dirs[i] = NULL;
- continue;
- }
- }
- new_wds[i] = wd;
- new_dirs[i] = _dbus_strdup (new_dirs[i]);
- if (!new_dirs[i])
- {
- /* FIXME have less lame handling for OOM, we just silently fail to
- * watch. (In reality though, the whole OOM handling in dbus is stupid
- * but we won't go into that in this comment =) )
- */
- inotify_rm_watch (inotify_fd, wd);
- new_wds[i] = -1;
- }
- }
- }
-
- num_wds = i;
-
- for (i = 0; i < MAX_DIRS_TO_WATCH; i++)
- {
- wds[i] = new_wds[i];
- dirs[i] = new_dirs[i];
- }
-
- out:;
-}
-
-#include <stdio.h>
-static void
-_shutdown_inotify (void *data)
-{
- DBusList *empty = NULL;
-
- if (inotify_fd == -1)
- return;
-
- _set_watched_dirs_internal (&empty);
-
- if (watch != NULL)
- {
- _dbus_loop_remove_watch (loop, watch);
- _dbus_watch_invalidate (watch);
- _dbus_watch_unref (watch);
- _dbus_loop_unref (loop);
- }
- watch = NULL;
- loop = NULL;
-
- close (inotify_fd);
- inotify_fd = -1;
-}
-
-static int
-_init_inotify (BusContext *context)
-{
- int ret = 0;
-
- if (inotify_fd == -1)
- {
-#ifdef HAVE_INOTIFY_INIT1
- inotify_fd = inotify_init1 (IN_CLOEXEC);
- /* This ensures we still run on older Linux kernels.
- * https://bugs.freedesktop.org/show_bug.cgi?id=23957
- */
- if (inotify_fd < 0)
- inotify_fd = inotify_init ();
-#else
- inotify_fd = inotify_init ();
-#endif
- if (inotify_fd <= 0)
- {
- _dbus_warn ("Cannot initialize inotify\n");
- goto out;
- }
- loop = bus_context_get_loop (context);
- _dbus_loop_ref (loop);
-
- watch = _dbus_watch_new (inotify_fd, DBUS_WATCH_READABLE, TRUE,
- _handle_inotify_watch, NULL, NULL);
-
- if (watch == NULL)
- {
- _dbus_warn ("Unable to create inotify watch\n");
- goto out;
- }
-
- if (!_dbus_loop_add_watch (loop, watch))
- {
- _dbus_warn ("Unable to add reload watch to main loop");
- _dbus_watch_unref (watch);
- watch = NULL;
- goto out;
- }
-
- if (!_dbus_register_shutdown_func (_shutdown_inotify, NULL))
- {
- _dbus_warn ("Unable to register shutdown func");
- _dbus_watch_unref (watch);
- watch = NULL;
- goto out;
- }
- }
-
- ret = 1;
-
-out:
- return ret;
-}
-
-void
-bus_set_watched_dirs (BusContext *context, DBusList **directories)
-{
- if (!_init_inotify (context))
- return;
-
- _set_watched_dirs_internal (directories);
-}
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