‘ext’ folders contain Jiffy application interface definitions and empty implementations of the same for controller and model extension-points. See the Extension Points section of this documentation.
The group/gmcl folder contains the source files for the usr, auth, usrgroup and groupauth cache clients. This package is for internal use only. See the Group Membership Overview and Failure Detector sections of this documentation.
The group/gmcom folder contains source files holding artifacts that are needed by the groups/… packages and those of the generated jiffy application. This package is for internal use only. See the Group Membership Overview and Failure Detector sections of this documentation.
The group/gmsrv folder contains the source files for the group-membership service, the failure detector and the leader-election mechanism. This package is for internal use only. See the Group Membership Overview and Failure Detector sections of this documentation.