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/* pwdgrp.h
Copyright 2001 Red Hat inc.
Stuff common to pwd and grp handling.
This file is part of Cygwin.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
enum pwdgrp_state {
uninitialized = 0,
initializing,
emulated,
loaded
};
class pwdgrp_check {
pwdgrp_state state;
FILETIME last_modified;
char file_w32[MAX_PATH];
public:
pwdgrp_check () : state (uninitialized) {}
operator pwdgrp_state ()
{
if (state != uninitialized && file_w32[0] && cygheap->etc_changed ())
{
HANDLE h;
WIN32_FIND_DATA data;
if ((h = FindFirstFile (file_w32, &data)) != INVALID_HANDLE_VALUE)
{
if (CompareFileTime (&data.ftLastWriteTime, &last_modified) > 0)
state = uninitialized;
FindClose (h);
}
}
return state;
}
void operator = (pwdgrp_state nstate)
{
state = nstate;
}
void set_last_modified (FILE *f)
{
if (!file_w32[0])
strcpy (file_w32, cygheap->fdtab[fileno (f)]->get_win32_name ());
GetFileTime (cygheap->fdtab[fileno (f)]->get_handle (),
NULL, NULL, &last_modified);
}
};
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