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Diffstat (limited to 'system/doc/design_principles/fsm.xml')
| -rw-r--r-- | system/doc/design_principles/fsm.xml | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/system/doc/design_principles/fsm.xml b/system/doc/design_principles/fsm.xml index 7cdd62057b..c3e9027274 100644 --- a/system/doc/design_principles/fsm.xml +++ b/system/doc/design_principles/fsm.xml @@ -308,6 +308,11 @@ terminate(normal, _StateName, _StateData) -> handle_info({'EXIT', Pid, Reason}, StateName, StateData) -> ..code to handle exits here.. {next_state, StateName1, StateData1}.</code> + <p>The code_change method also has to be implemented.</p> + <code type="none"> +code_change(OldVsn, StateName, StateData, Extra) -> + ..code to convert state (and more) during code change + {ok, NextStateName, NewStateData}</code> </section> </chapter> |