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

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(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.
This commit is contained in:
Corinna Vinschen
2001-01-11 12:33:12 +00:00
parent 37770e0009
commit c4efddf601
4 changed files with 108 additions and 16 deletions
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6
winsup/cygwin/fhandler.h
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@ -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 ();
} ;