* Use new unified status_flag accessor methods from classes fhandler_*,

tty_min, mtinfo and fs_info thoroughout.
	* fhandler.h: Redefine all set_close_on_exec methods to take a bool
	argument.
	(enum conn_state): Rename from connect_state.
	(class fhandler_base): Rename some status flags to align with
	accessor method names.  Drop encoded flag entirely.  Unify status
	accessor methods.  Const'ify all read accessor methods.
	(class fhandler_socket): Ditto.
	(class fhandler_dev_raw): Ditto.
	* fhandler_disk_file.cc (fhandler_base::fstat_fs): Use fs.fs_is_fat()
	instead of evaluating FATness of file system here.
	(fhandler_disk_file::opendir): Drop call to set_encoded().
	(fhandler_disk_file::readdir): Use pc.isencoded() directly.
	* mtinfo.h (class mtinfo_drive): Const'ify all read accessor methods.
	* path.cc (fsinfo_cnt): Add.
	(fs_info::update): Accomodate class changes. Evaluate file system
	name specific flags right here. Add thread safety for reading and
	writing global fsinfo array.
	* path.h (enum path_types): Drop values for flags kept in fs already.
	(struct fs_info): Move status informatin into private struct type
	status_flags.  Add accessor methods. Remove path and file system
	name string arrays in favor of status bits.
	(class path_conv): Use new fs_info status information where
	appropriate.
	(path_conf::fs_has_ea): Rename from fs_fast_ea.
	(path_conf::fs_has_acls): New method.
	(path_conf::root_dir): Remove.
	(path_conf::volname): Remove.
	* syscalls (statfs): Evaluate root dir locally.
	* tty.h (class tty_min): Unify status accessor methods.  Const'ify
	all read accessor methods.

winsup/cygwin/fhandler_tty.cc

@@ -440,7 +440,7 @@ process_ioctl (void *)
 fhandler_tty_slave::fhandler_tty_slave ()
   : fhandler_tty_common ()
 {
-  set_r_no_interrupt (1);
+  uninterruptible_io (true);
 }
 
 /* FIXME: This function needs to close handles when it has
@@ -1334,10 +1334,10 @@ fhandler_pty_master::ptsname ()
 }
 
 void
-fhandler_tty_common::set_close_on_exec (int val)
+fhandler_tty_common::set_close_on_exec (bool val)
 {
   if (archetype)
-    set_close_on_exec_flag (val);
+    close_on_exec (val);
   else
     {
       if (output_done_event)
@@ -1359,7 +1359,7 @@ fhandler_tty_common::set_close_on_exec (int val)
 	 It is here because we need to specify the "from_pty" stuff here or
 	 we'll get warnings from ForceCloseHandle when debugging. */
       set_no_inheritance (get_io_handle (), val);
-      set_close_on_exec_flag (val);
+      close_on_exec (val);
 #endif
     }
 }
@@ -1391,7 +1391,7 @@ fhandler_tty_common::fixup_after_fork (HANDLE parent)
 }
 
 void
-fhandler_pty_master::set_close_on_exec (int val)
+fhandler_pty_master::set_close_on_exec (bool val)
 {
   fhandler_tty_common::set_close_on_exec (val);
 
@@ -1414,6 +1414,6 @@ fhandler_tty_master::init_console ()
 
   console->init (INVALID_HANDLE_VALUE, GENERIC_READ | GENERIC_WRITE, O_BINARY);
   cygheap->open_fhs--;  	/* handled when individual fds are opened */
-  console->set_r_no_interrupt (1);
+  console->uninterruptible_io (true);
   return 0;
 }