* Implement poll support. Patch by Tejun Heo

1 files changed, 31 insertions, 0 deletions

diff --git a/include/fuse_kernel.h b/include/fuse_kernel.h
index eb28a35..df558e3 100644
--- a/include/fuse_kernel.h
+++ b/include/fuse_kernel.h
@@ -49,6 +49,8 @@
  *
  * 7.11
  *  - add IOCTL message
+ *  - add unsolicited notification support
+ *  - add POLL message and NOTIFY_POLL notification
  */
 
 #ifndef _LINUX_FUSE_H
@@ -191,6 +193,13 @@ struct fuse_file_lock {
 
 #define FUSE_IOCTL_MAX_IOV	256
 
+/**
+ * Poll flags
+ *
+ * FUSE_POLL_SCHEDULE_NOTIFY: request poll notify
+ */
+#define FUSE_POLL_SCHEDULE_NOTIFY (1 << 0)
+
 enum fuse_opcode {
 	FUSE_LOOKUP	   = 1,
 	FUSE_FORGET	   = 2,  /* no reply */
@@ -229,6 +238,12 @@ enum fuse_opcode {
 	FUSE_BMAP          = 37,
 	FUSE_DESTROY       = 38,
 	FUSE_IOCTL         = 39,
+	FUSE_POLL          = 40,
+};
+
+enum fuse_notify_code {
+	FUSE_NOTIFY_POLL   = 1,
+	FUSE_NOTIFY_CODE_MAX,
 };
 
 /* The read buffer is required to be at least 8k, but may be much larger */
@@ -445,6 +460,22 @@ struct fuse_ioctl_out {
 	__u32	out_iovs;
 };
 
+struct fuse_poll_in {
+	__u64	fh;
+	__u64	kh;
+	__u32	flags;
+	__u32   padding;
+};
+
+struct fuse_poll_out {
+	__u32	revents;
+	__u32	padding;
+};
+
+struct fuse_notify_poll_wakeup_out {
+	__u64	kh;
+};
+
 struct fuse_in_header {
 	__u32	len;
 	__u32	opcode;