* fhandler.h (fhandler_base): New method `fixup_mmap_after_fork'.

        (fhandler_disk_file: Ditto.
        (fhandler_dev_mem): Ditto.
        * fhandler_mem.cc (fhandler_dev_mem::open): Set OBJ_INHERIT attribute
        for device\physicalmemory handle.
        (fhandler_dev_mem::mmap): Ditto.
        * fhandler_mem.cc (fhandler_dev_mem::fixup_mmap_after_fork): New method.
        * mmap.cc (mmap_record): Add private `fdesc_' member. Change constructor
        accordingly.
        (get_fd): New method.
        (mmap): Use new mmap_record constructor.
        (fhandler_base::fixup_mmap_after_fork): New method.
        (fhandler_disk_file::fixup_mmap_after_fork): Ditto.
        (fixup_mmaps_after_fork): Call `fixup_mmap_after_fork' of appropriate
        fhandler class.

1 files changed, 6 insertions, 0 deletions

diff --git a/winsup/cygwin/fhandler.h b/winsup/cygwin/fhandler.h
index 27a5cb942..356eb6beb 100644
--- a/winsup/cygwin/fhandler.h
+++ b/winsup/cygwin/fhandler.h
@@ -271,6 +271,8 @@ public:
                        int flags, off_t off);
   virtual int munmap (HANDLE h, caddr_t addr, size_t len);
   virtual int msync (HANDLE h, caddr_t addr, size_t len, int flags);
+  virtual BOOL fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
+				      DWORD size, void *address);
 
   void *operator new (size_t, void *p) {return p;}
 
@@ -483,6 +485,8 @@ public:
   HANDLE mmap (caddr_t *addr, size_t len, DWORD access, int flags, off_t off);
   int munmap (HANDLE h, caddr_t addr, size_t len);
   int msync (HANDLE h, caddr_t addr, size_t len, int flags);
+  BOOL fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
+			      DWORD size, void *address);
 };
 
 class fhandler_serial: public fhandler_base
@@ -806,6 +810,8 @@ public:
   HANDLE mmap (caddr_t *addr, size_t len, DWORD access, int flags, off_t off);
   int munmap (HANDLE h, caddr_t addr, size_t len);
   int msync (HANDLE h, caddr_t addr, size_t len, int flags);
+  BOOL fixup_mmap_after_fork (HANDLE h, DWORD access, DWORD offset,
+			      DWORD size, void *address);
 
   void dump ();
 } ;