Package com.github.marschall.nativebytebuffers

Class MemfdCreateFlags

java.lang.Object
com.github.marschall.nativebytebuffers.MemfdCreateFlags
public final class MemfdCreateFlags extends Object

  • Field Details

    • MFD_CLOEXEC

      public static final int MFD_CLOEXEC
      Set the close-on-exec (FD_CLOEXEC) flag on the new file descriptor. See the description of the O_CLOEXEC flag in open(2) for reasons why this may be useful.
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    • MFD_ALLOW_SEALING

      public static final int MFD_ALLOW_SEALING
      Allow sealing operations on this file. See the discussion of the F_ADD_SEALS and F_GET_SEALS operations in fcntl(2), and also NOTES, below. The initial set of seals is empty. If this flag is not set, the initial set of seals will be F_SEAL_SEAL, meaning that no other seals can be set on the file.
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    • MFD_HUGETLB

      public static final int MFD_HUGETLB
      (since Linux 4.14) The anonymous file will be created in the hugetlbfs filesystem using huge pages. See the Linux kernel source file Documentation/admin-guide/mm/hugetlbpage.rst for more information about hugetlbfs. Specifying both MFD_HUGETLB and MFD_ALLOW_SEALING in flags is supported since Linux 4.16.
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    • MFD_HUGE_64KB

      public static final int MFD_HUGE_64KB
      Used in conjunction with MFD_HUGETLB to select alternative hugetlb page sizes (respectively, 2 MB, 1 GB, ...) on systems that support multiple hugetlb page sizes. Definitions for known huge page sizes are included in the header file <linux/memfd.h>.

      For details on encoding huge page sizes not included in the header file, see the discussion of the similarly named constants in mmap(2).

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    • MFD_HUGE_512KB

      public static final int MFD_HUGE_512KB
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    • MFD_HUGE_1MB

      public static final int MFD_HUGE_1MB
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    • MFD_HUGE_2MB

      public static final int MFD_HUGE_2MB
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    • MFD_HUGE_8MB

      public static final int MFD_HUGE_8MB
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    • MFD_HUGE_16MB

      public static final int MFD_HUGE_16MB
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    • MFD_HUGE_32MB

      public static final int MFD_HUGE_32MB
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    • MFD_HUGE_256MB

      public static final int MFD_HUGE_256MB
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    • MFD_HUGE_512MB

      public static final int MFD_HUGE_512MB
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    • MFD_HUGE_1GB

      public static final int MFD_HUGE_1GB
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    • MFD_HUGE_2GB

      public static final int MFD_HUGE_2GB
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    • MFD_HUGE_16GB

      public static final int MFD_HUGE_16GB
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