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authorGravatar Mike Frysinger <vapier@gentoo.org>2006-06-21 00:07:34 +0000
committerGravatar Mike Frysinger <vapier@gentoo.org>2009-08-25 03:44:13 -0400
commit6c195afaf3fbd10fefcd55f27814a0e4d1e43e64 (patch)
treed9f086cab32089db36275fddc8e118d5cd697b1e
parent559539dc7846489778f0bbbc0372585474921862 (diff)
downloaduClibc-6c195afaf3fbd10fefcd55f27814a0e4d1e43e64.tar.gz
uClibc-6c195afaf3fbd10fefcd55f27814a0e4d1e43e64.tar.bz2
Austin Morgan writes in #917: add support for inotify
-rw-r--r--libc/sysdeps/linux/common/inotify.c24
-rw-r--r--libc/sysdeps/linux/common/sys/inotify.h92
2 files changed, 116 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/common/inotify.c b/libc/sysdeps/linux/common/inotify.c
new file mode 100644
index 000000000..87cf4d71e
--- /dev/null
+++ b/libc/sysdeps/linux/common/inotify.c
@@ -0,0 +1,24 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * inotify interface for uClibc
+ *
+ * Copyright (C) 2006 Austin Morgan <admorgan@morgancomputers.net>
+ * Copyright (C) 2006 by Erik Andersen <andersen@codepoet.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include "syscalls.h"
+#include <sys/inotify.h>
+
+#ifdef __NR_inotify_init
+_syscall0(int, inotify_init);
+#endif
+
+#ifdef __NR_inotify_add_watch
+_syscall3(int, inotify_add_watch, int, fd, const char *, path, uint32_t, mask);
+#endif
+
+#ifdef __NR_inotify_rm_watch
+_syscall2(int, inotify_rm_watch, int, fd, uint32_t, wd);
+#endif
diff --git a/libc/sysdeps/linux/common/sys/inotify.h b/libc/sysdeps/linux/common/sys/inotify.h
new file mode 100644
index 000000000..0131db9d3
--- /dev/null
+++ b/libc/sysdeps/linux/common/sys/inotify.h
@@ -0,0 +1,92 @@
+/* Copyright (C) 2005, 2006 Free Software Foundation, Inc.
+ This file is part of the GNU C Library.
+
+ The GNU C Library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+
+ The GNU C Library 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
+ Lesser General Public License for more details.
+
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_INOTIFY_H
+#define _SYS_INOTIFY_H 1
+
+#include <stdint.h>
+
+
+/* Structure describing an inotify event. */
+struct inotify_event
+{
+ int wd; /* Watch descriptor. */
+ uint32_t mask; /* Watch mask. */
+ uint32_t cookie; /* Cookie to synchronize two events. */
+ uint32_t len; /* Length (including NULs) of name. */
+ char name __flexarr; /* Name. */
+};
+
+
+/* Supported events suitable for MASK parameter of INOTIFY_ADD_WATCH. */
+#define IN_ACCESS 0x00000001 /* File was accessed. */
+#define IN_MODIFY 0x00000002 /* File was modified. */
+#define IN_ATTRIB 0x00000004 /* Metadata changed. */
+#define IN_CLOSE_WRITE 0x00000008 /* Writtable file was closed. */
+#define IN_CLOSE_NOWRITE 0x00000010 /* Unwrittable file closed. */
+#define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close. */
+#define IN_OPEN 0x00000020 /* File was opened. */
+#define IN_MOVED_FROM 0x00000040 /* File was moved from X. */
+#define IN_MOVED_TO 0x00000080 /* File was moved to Y. */
+#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* Moves. */
+#define IN_CREATE 0x00000100 /* Subfile was created. */
+#define IN_DELETE 0x00000200 /* Subfile was deleted. */
+#define IN_DELETE_SELF 0x00000400 /* Self was deleted. */
+#define IN_MOVE_SELF 0x00000800 /* Self was moved. */
+
+/* Events sent by the kernel. */
+#define IN_UNMOUNT 0x00002000 /* Backing fs was unmounted. */
+#define IN_Q_OVERFLOW 0x00004000 /* Event queued overflowed. */
+#define IN_IGNORED 0x00008000 /* File was ignored. */
+
+/* Helper events. */
+#define IN_CLOSE (IN_CLOSE_WRITE | IN_CLOSE_NOWRITE) /* Close. */
+#define IN_MOVE (IN_MOVED_FROM | IN_MOVED_TO) /* Moves. */
+
+/* Special flags. */
+#define IN_ONLYDIR 0x01000000 /* Only watch the path if it is a
+ directory. */
+#define IN_DONT_FOLLOW 0x02000000 /* Do not follow a sym link. */
+#define IN_MASK_ADD 0x20000000 /* Add to the mask of an already
+ existing watch. */
+#define IN_ISDIR 0x40000000 /* Event occurred against dir. */
+#define IN_ONESHOT 0x80000000 /* Only send event once. */
+
+/* All events which a program can wait on. */
+#define IN_ALL_EVENTS (IN_ACCESS | IN_MODIFY | IN_ATTRIB | IN_CLOSE_WRITE \
+ | IN_CLOSE_NOWRITE | IN_OPEN | IN_MOVED_FROM \
+ | IN_MOVED_TO | IN_CREATE | IN_DELETE \
+ | IN_DELETE_SELF | IN_MOVE_SELF)
+
+
+__BEGIN_DECLS
+
+/* Create and initialize inotify instance. */
+extern int inotify_init (void) __THROW;
+
+/* Add watch of object NAME to inotify instance FD. Notify about
+ events specified by MASK. */
+extern int inotify_add_watch (int __fd, const char *__name, uint32_t __mask)
+ __THROW;
+
+/* Remove the watch specified by WD from the inotify instance FD. */
+extern int inotify_rm_watch (int __fd, uint32_t __wd) __THROW;
+
+__END_DECLS
+
+#endif /* sys/inotify.h */