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JNA API 5.12.1

Class Udev.UdevContext

  • All Implemented Interfaces:
    Enclosing interface:

    public static class Udev.UdevContext
    extends PointerType
    All functions require a libudev context to operate. This context can be created via Udev.udev_new(). It is used to track library state and link objects together. No global state is used by libudev, everything is always linked to a udev context. Furthermore, multiple different udev contexts can be used in parallel by multiple threads. However, a single context must not be accessed by multiple threads in parallel. The caller is responsible for providing suitable locking if they intend to use it from multiple threads.
    • Constructor Detail

      • UdevContext

        public UdevContext()
    • Method Detail

      • ref

        public Udev.UdevContext ref()
        Acquire a further reference to this object.
        this object, unmodified.
      • unref

        public void unref()
        Drop a reference to this object. Once the reference count hits 0, the context object is destroyed and freed.
      • enumerateNew

        public Udev.UdevEnumerate enumerateNew()
        Create a udev enumerate object. Initially, the reference count of the enumerate object is 1.
        On success, returns the allocated enumerator. On failure, NULL is returned.
      • deviceNewFromSyspath

        public Udev.UdevDevice deviceNewFromSyspath(java.lang.String syspath)
        Creates a udev device object based on information found in /sys, annotated with properties from the udev-internal device database. Initially, the reference count of the device is 1.
        syspath - The path of the device in /sys.
        the allocated udev device. On failure, NULL is returned, and errno is set appropriately.
JNA API 5.12.1

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