From 49eef6d5f7868a67b9ae84d747fb466d3335cf78 Mon Sep 17 00:00:00 2001
From: Corinna Vinschen <corinna@vinschen.de>
Date: Sun, 9 Sep 2001 16:52:37 +0000
Subject: 	* cygheap.cc (init_cygheap::etc_changed): New method to signal
 	a change in /etc. 	* cygheap.h (struct init_cygheap): Add member
 `etc_changed_h' 	and method `etc_changed'. 	* grp.cc (enum
 grp_state): Eliminate. 	(class grp_check): Ditto. 	(group_state):
 Define as `class pwdgrp_check'. 	(parse_grp): Remeber path and
 modification time of /etc/group file. 	* passwd.cc (enum_pwd_state):
 Eliminate. 	(class pwd_check): Ditto. 	(passwd_state): Define as
 `class pwdgrp_check'. 	(read_etc_passwd): Remember path and modification time
 of /etc/passwd 	file. 	* pwdgrp.h: New file. 	(enum pwdgrp_state):
 Substitutes `pwd_state' and `grp_state'. 	(class pwdgrp_check):
 Substitutes `pwd_check' and `grp_check'.

---
 winsup/cygwin/cygheap.cc | 34 ++++++++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)

(limited to 'winsup/cygwin/cygheap.cc')

diff --git a/winsup/cygwin/cygheap.cc b/winsup/cygwin/cygheap.cc
index 53a66cfac..be52f0446 100644
--- a/winsup/cygwin/cygheap.cc
+++ b/winsup/cygwin/cygheap.cc
@@ -16,6 +16,7 @@
 #include "security.h"
 #include "fhandler.h"
 #include "dtable.h"
+#include "path.h"
 #include "cygheap.h"
 #include "child_info.h"
 #include "heap.h"
@@ -345,6 +346,39 @@ cstrdup1 (const char *s)
   return p;
 }
 
+bool
+init_cygheap::etc_changed ()
+{
+  bool res = 0;
+
+  if (!etc_changed_h)
+    {
+      path_conv pwd ("/etc");
+      etc_changed_h = FindFirstChangeNotification (pwd, FALSE,
+					      FILE_NOTIFY_CHANGE_LAST_WRITE);
+      if (etc_changed_h == INVALID_HANDLE_VALUE)
+	system_printf ("Can't open /etc for checking, %E", (char *) pwd,
+	    	       etc_changed_h);
+      else if (!DuplicateHandle (hMainProc, etc_changed_h, hMainProc,
+	    			 &etc_changed_h, 0, TRUE,
+				 DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE))
+	{
+	  system_printf ("Can't inherit /etc handle, %E", (char *) pwd,
+	      		 etc_changed_h);
+	  etc_changed_h = INVALID_HANDLE_VALUE;
+	}
+    }
+
+   if (etc_changed_h != INVALID_HANDLE_VALUE
+       && WaitForSingleObject (etc_changed_h, 0) == WAIT_OBJECT_0)
+     {
+       (void) FindNextChangeNotification (etc_changed_h);
+       res = 1;
+     }
+
+  return res;
+}
+
 void
 cygheap_root::set (const char *posix, const char *native)
 {
-- 
cgit v1.2.3