* fhandler.cc (fhandler_base::dup): Drop setting flags in the parent.

	Implement advisory file locking.
	* cygheap.h (struct init_cygheap): Add inode_list member.
	* cygwin.din (lockf): Export.
	* dcrt0.cc (child_info_spawn::handle_spawn): Call
	fixup_lockf_after_exec.
	* dtable.h (class dtable): Add fhandler_disk_file as friend class.
	* fhandler.cc (fhandler_base::close): Call del_my_locks if node is set.
	(fhandler_base::fhandler_base): Initialize node to NULL.
	(fhandler_base::fixup_after_fork): Ditto.
	* fhandler.h (class fhandler_base): Add member node.
	* fhandler_disk_file.cc (fhandler_disk_file::lock): Delete.
	* flock.cc: Implement all advisory file locking here.
	(fhandler_disk_file::lock): Implement here.
	(flock): Call fcntl with F_FLOCK bit set.  Remove test main function.
	(lockf): New function.
	* fork.cc (frok::child): Call fixup_lockf_after_fork.
	* ntdll.h (DIRECTORY_ALL_ACCESS): Define.
	(struct _OBJECT_BASIC_INFORMATION): Define.
	(enum _EVENT_TYPE): Define.
	(NtCreateDirectoryObject): Declare.
	(NtCreateEvent): Declare.
	(NtCreateMutant): Declare.
	(NtOpenEvent): Declare.
	(NtOpenMutant): Declare.
	* include/cygwin/version.h: Bump API minor number.

1 files changed, 3 insertions, 0 deletions

diff --git a/winsup/cygwin/cygheap.h b/winsup/cygwin/cygheap.h
index d1bc5cc8a..b18158420 100644
--- a/winsup/cygwin/cygheap.h
+++ b/winsup/cygwin/cygheap.h
@@ -295,6 +295,9 @@ struct init_cygheap
   size_t sthreads;
   pid_t pid;			/* my pid */
   HANDLE pid_handle;		/* handle for my pid */
+  struct {			/* Equivalent to using LIST_HEAD. */
+    struct inode_t *lh_first;
+  } inode_list;			/* Global inode pointer for adv. locking. */
   hook_chain hooks;
   void close_ctty ();
   int manage_console_count (const char *, int, bool = false) __attribute__ ((regparm (3)));