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Diffstat (limited to 'system/doc/design_principles/statem.xml')
| -rw-r--r-- | system/doc/design_principles/statem.xml | 17 |
1 files changed, 14 insertions, 3 deletions
diff --git a/system/doc/design_principles/statem.xml b/system/doc/design_principles/statem.xml index f627145f9f..22b622ec5f 100644 --- a/system/doc/design_principles/statem.xml +++ b/system/doc/design_principles/statem.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2016</year> + <year>2016</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -130,7 +130,7 @@ handle_event(EventType, EventContent, State, Data) -> {next_state, NewState, NewData} </pre> <p> - Se section + See section <seealso marker="#One Event Handler">One Event Handler</seealso> for an example. </p> @@ -887,7 +887,7 @@ stop() -> </p> <p> This type of time-out is useful to for example act on inactivity. - Let us start restart the code sequence + Let us restart the code sequence if no button is pressed for say 30 seconds: </p> <code type="erl"><![CDATA[ @@ -1180,6 +1180,17 @@ open(state_timeout, lock, Data) -> {next_state, locked, Data}; ... ]]></code> + <p> + You can repeat the state entry code by returning one of + <c>{repeat_state, ...}</c>, <c>{repeat_state_and_data,_}</c> + or <c>repeat_state_and_data</c> that otherwise behaves + exactly like their <c>keep_state</c> siblings. + See the type + <seealso marker="stdlib:gen_statem#type-state_callback_result"> + <c>state_callback_result()</c> + </seealso> + in the reference manual. + </p> </section> <!-- =================================================================== --> |