создание, получение и выпуск объекта контекста udev (Create, acquire and release a udev context object)
Имя (Name)
udev_new, udev_ref, udev_unref - Create, acquire and release a
udev context object
Синопсис (Synopsis)
#include <libudev.h>
struct udev *udev_new(void);
struct udev *udev_ref(struct udev *udev);
struct udev *udev_unref(struct udev *udev);
Описание (Description)
udev_new() allocates a new udev context object and returns a
pointer to it. This object is opaque and must not be accessed by
the caller via different means than functions provided by
libudev. Initially, the reference count of the context is 1. You
can acquire further references, and drop gained references via
udev_ref() and udev_unref(). Once the reference count hits 0, the
context object is destroyed and freed.
Возвращаемое значение (Return value)
On success, udev_new() returns a pointer to the allocated udev
context. On failure, NULL is returned. udev_ref() returns the
argument that it was passed, unmodified. udev_unref() always
returns NULL.
Смотри также (See also)
systemd(1),
