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JNA API 5.10.0

Interface LibRT

  • All Superinterfaces:

    public interface LibRT
    extends Library
    POSIX.1b Realtime Extensions library (librt). Functions in this library provide most of the interfaces specified by the POSIX.1b Realtime Extension.
    • Field Detail

      • INSTANCE

        static final LibRT INSTANCE
    • Method Detail

      • shm_open

        int shm_open(java.lang.String name,
                     int oflag,
                     int mode)
        Creates and opens a new, or opens an existing, POSIX shared memory object. A POSIX shared memory object is in effect a handle which can be used by unrelated processes to mmap() the same region of shared memory.
        name - The shared memory object to be created or opened. For portable use, a shared memory object should be identified by a name of the form /somename that is, a null-terminated string of up to NAME_MAX (i.e., 255) characters consisting of an initial slash, followed by one or more characters, none of which are slashes.
        oflag - A bit mask created by ORing together exactly one of O_RDONLY or O_RDWR and any of the other flags O_CREAT, O_EXCL, or O_TRUNC.
        mode - When oflag includes O_CREAT, the object's permission bits are set according to the low-order 9 bits of mode, except that those bits set in the process file mode creation mask (see umask(2)) are cleared for the new object.
        On success, returns a file descriptor (a nonnegative integer). On failure, returns -1. On failure, errno is set to indicate the cause of the error.
      • shm_unlink

        int shm_unlink(java.lang.String name)
        Removes an object previously created by shm_open(java.lang.String, int, int).
        name - The shared memory object to be unlinked.
        returns 0 on success, or -1 on error. On failure, errno is set to indicate the cause of the error.
JNA API 5.10.0

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