Integration with systemd.
Currently only the minimum APIs necessary for using systemd's socket activation feature are supported.
ListenFDs provides access to file descriptors inherited from systemd.
|Parse the LISTEN_FDS environment variable supplied by systemd.
|Parse the LISTEN_FDNAMES environment variable supplied by systemd.
Parse the LISTEN_FDS environment variable supplied by systemd.
|systemd provides only a count of the number of descriptors that have been inherited. This is the integer value of the first inherited descriptor. Subsequent inherited descriptors are numbered counting up from here. See
|The environment variable mapping in which to look for the value to parse.
|The integer values of the inherited file descriptors, in order.