Part of twisted.python.systemd View Source View In Hierarchy
ListenFDs
provides access to file descriptors inherited from systemd.
Typically ListenFDs.fromEnvironment
should be used to construct a new instance of ListenFDs.
| Method | __init__ | |
| Class Method | fromEnvironment | No summary |
| Method | inheritedDescriptors | |
| Class Variable | _START | File descriptors inherited from systemd are always consecutively numbered,
with a fixed lowest "starting" descriptor. This gives the
default starting descriptor. Since this must agree with the value systemd
is using, it typically should not be overridden. (type: int) |
| Instance Variable | _descriptors | A list of int giving the descriptors which were
inherited. |
int)
| Parameters | descriptors | The descriptors which will be returned from calls to
inheritedDescriptors. |
| Parameters | environ | A dictionary-like object to inspect to discover inherited descriptors. By
default, None, indicating that the real process environment
should be inspected. The default is suitable for typical usage. |
| start | An integer giving the lowest value of an inherited descriptor systemd will
give us. By default, None, indicating the known correct (that
is, in agreement with systemd) value will be used. The default is suitable
for typical usage. | |
| Returns | A new instance of cls which can be used to look up the
descriptors which have been inherited. | |