Port FFS tools over from Building Block repository.

1 files changed, 87 insertions, 0 deletions

diff --git a/clib/watch.h b/clib/watch.h
new file mode 100644
index 0000000..7f09f3e
--- /dev/null
+++ b/clib/watch.h
@@ -0,0 +1,87 @@
+/*
+ * Copyright (c) International Business Machines Corp., 2014
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+
+/*
+ *   File: watch.h
+ * Author: Shaun Wetzstein <shaun@us.ibm.com>
+ *  Descr: Directory activity callback monitor
+ *   Note:
+ *   Date: 10/03/10
+ */
+
+#ifndef __WATCH_H__
+#define __WATCH_H__
+
+#include <stdint.h>
+#include <stdbool.h>
+
+#include <sys/inotify.h>
+
+#include "attribute.h"
+#include "builtin.h"
+#include "assert.h"
+
+#include "array.h"
+
+/* ==================================================================== */
+
+#define WATCH_ACCESS		IN_ACCESS
+#define WATCH_ATTRIB		IN_ATTRIB
+#define WATCH_CLOSE_WRITE	IN_CLOSE_WRITE
+#define WATCH_CLOSE_NOWRITE	IN_CLOSE_NOWRITE
+#define WATCH_CREATE		IN_CREATE
+#define WATCH_DELETE		IN_DELETE
+#define WATCH_DELETE_SELF	IN_DELETE_SELF
+#define WATCH_MODIFY		IN_MODIFY
+#define WATCH_MOVE_SELF		IN_MOVE_SELF
+#define WATCH_MOVE_FROM		IN_MOVE_FROM
+#define WATCH_MOVE_TO		IN_MOVE_TO
+#define WATCH_OPEN		IN_OPEN
+
+typedef struct watch watch_t;
+typedef struct watch_callback watch_callback_t;
+typedef struct inotify_event watch_event_t;
+
+typedef int (*watch_f) (watch_event_t *);
+
+struct watch {
+	int fd;
+	array_t callbacks;
+};
+
+struct watch_callback {
+	void *data;
+	watch_f func;
+};
+
+/* ======================================================================= */
+
+extern void watch_init(watch_t * self) __nonnull((1));
+extern void watch_delete(watch_t * self) __nonnull((1));
+
+extern int watch_fileno(watch_t * self) __nonnull((1));
+
+extern uint32_t watch_add(watch_t * self, const char *path, uint32_t events,
+			  watch_callback_t * cb) __nonnull((1, 2));
+extern void watch_remove(watch_t * self, uint32_t wd) __nonnull((1));
+
+extern void watch_wait(watch_t * self) __nonnull((1));
+
+/* ======================================================================= */
+
+#endif				/* __watch_H__ */