* Makefile.in: Build wincap.o.

        * wincap.cc: New file.
        * wincap.h: Ditto.
        * autoload.cc: Add dynamic load statement for `CreateHardLinkA'.
        * dcrt0.cc (os_being_run): Eliminated.
        (osname): Ditto.
        (iswinnt): Ditto.
        (set_os_type): Ditto.
        (dll_crt0_1): Call wincap.init() instead of set_os_type().
        (_dll_crt0): Ditto.
        * environ.cc (set_chunksize): New function.
        (parse_thing): `forkchunk' setting now invokes function `set_chunksize'.
        * fork.cc (chunksize): Eliminated. Moved to be member of wincap.
        * host_dependent.h: Removed.
        * syscalls.cc (_link): Try using `CreateHardLinkA' first, if available.
        * cygheap.cc, dcrt0.cc, delqueue.cc, dir.cc,
        environ.cc, fhandler.cc, fhandler.h, fhandler_console.cc,
        fhandler_mem.cc, fork.cc, mmap.cc, net.cc, pinfo.cc, pinfo.h,
        security.cc, syscalls.cc, sysconf.cc, syslog.cc, thread.cc,
        times.cc, tty.cc, uinfo.cc, uname.cc, winsup.h: Use new wincap
        capability check throughout.
        * winsup.h: Include wincap.h. Eliminate extern declarations of
        `os_being_run' and `iswinnt'. Eliminate `os_type" definition.
        * include/cygwin/version.h: Bump version to 1.3.4.

1 files changed, 99 insertions, 0 deletions

diff --git a/winsup/cygwin/wincap.h b/winsup/cygwin/wincap.h
new file mode 100644
index 000000000..903c719e8
--- /dev/null
+++ b/winsup/cygwin/wincap.h
@@ -0,0 +1,99 @@
+/* wincap.h: Header for OS capability class.
+
+   Copyright 2001 Red Hat, Inc.
+
+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. */
+
+#ifndef _WINCAP_H
+#define _WINCAP_H
+
+struct wincaps
+{ 
+  DWORD    lock_file_highword;
+  DWORD    chunksize;
+  int      shared;
+  unsigned is_winnt                                     : 1;
+  unsigned access_denied_on_delete                      : 1;
+  unsigned has_delete_on_close                          : 1;
+  unsigned has_page_guard                               : 1;
+  unsigned has_security                                 : 1;
+  unsigned has_security_descriptor_control              : 1;
+  unsigned has_get_process_times                        : 1;
+  unsigned has_specific_access_rights                   : 1;
+  unsigned has_lseek_bug                                : 1;
+  unsigned has_lock_file_ex                             : 1;
+  unsigned has_signal_object_and_wait                   : 1;
+  unsigned has_eventlog                                 : 1;
+  unsigned has_ip_helper_lib                            : 1;
+  unsigned has_set_handle_information                   : 1;
+  unsigned supports_smp                                 : 1;
+  unsigned map_view_of_file_ex_sucks                    : 1;
+  unsigned altgr_is_ctrl_alt                            : 1;
+  unsigned has_physical_mem_access                      : 1;
+  unsigned has_working_copy_on_write                    : 1;
+  unsigned share_mmaps_only_by_name                     : 1;
+  unsigned virtual_protect_works_on_shared_pages        : 1;
+  unsigned has_hard_links                               : 1;
+  unsigned can_open_directories                         : 1;
+  unsigned has_move_file_ex                             : 1;
+  unsigned has_negative_pids                            : 1;
+  unsigned has_unreliable_pipes                         : 1;
+  unsigned has_try_enter_critical_section		: 1;
+};
+
+class wincapc
+{
+  OSVERSIONINFO version;
+  char          osnam[40];
+  void          *caps;
+
+public:
+  void init ();
+
+  void set_chunksize (DWORD nchunksize);
+  
+  const char *osname () const { return osnam; }
+
+#define IMPLEMENT(cap) cap() const { return ((wincaps *)this->caps)->cap; }
+
+  DWORD IMPLEMENT (lock_file_highword)
+  DWORD IMPLEMENT (chunksize)
+  int   IMPLEMENT (shared)
+  bool  IMPLEMENT (is_winnt)
+  bool  IMPLEMENT (access_denied_on_delete)
+  bool  IMPLEMENT (has_delete_on_close)
+  bool  IMPLEMENT (has_page_guard)
+  bool  IMPLEMENT (has_security)
+  bool  IMPLEMENT (has_security_descriptor_control)
+  bool  IMPLEMENT (has_get_process_times)
+  bool  IMPLEMENT (has_specific_access_rights)
+  bool  IMPLEMENT (has_lseek_bug)
+  bool  IMPLEMENT (has_lock_file_ex)
+  bool  IMPLEMENT (has_signal_object_and_wait)
+  bool  IMPLEMENT (has_eventlog)
+  bool  IMPLEMENT (has_ip_helper_lib)
+  bool  IMPLEMENT (has_set_handle_information)
+  bool  IMPLEMENT (supports_smp)
+  bool  IMPLEMENT (map_view_of_file_ex_sucks)
+  bool  IMPLEMENT (altgr_is_ctrl_alt)
+  bool  IMPLEMENT (has_physical_mem_access)
+  bool  IMPLEMENT (has_working_copy_on_write)
+  bool  IMPLEMENT (share_mmaps_only_by_name)
+  bool  IMPLEMENT (virtual_protect_works_on_shared_pages)
+  bool  IMPLEMENT (has_hard_links)
+  bool  IMPLEMENT (can_open_directories)
+  bool  IMPLEMENT (has_move_file_ex)
+  bool  IMPLEMENT (has_negative_pids)
+  bool  IMPLEMENT (has_unreliable_pipes)
+  bool  IMPLEMENT (has_try_enter_critical_section)
+
+#undef IMPLEMENT
+};
+
+extern wincapc wincap;
+
+#endif /* _WINCAP_H */