diff options
Diffstat (limited to 'lib/kernel')
| -rw-r--r-- | lib/kernel/doc/src/heart.xml | 13 | ||||
| -rw-r--r-- | lib/kernel/src/heart.erl | 13 | ||||
| -rw-r--r-- | lib/kernel/test/heart_SUITE.erl | 10 |
3 files changed, 24 insertions, 12 deletions
diff --git a/lib/kernel/doc/src/heart.xml b/lib/kernel/doc/src/heart.xml index a4569b5fb8..9da4773f2d 100644 --- a/lib/kernel/doc/src/heart.xml +++ b/lib/kernel/doc/src/heart.xml @@ -118,6 +118,13 @@ <p>In the following descriptions, all function fails with reason <c>badarg</c> if <c>heart</c> is not started.</p> </description> + + <datatypes> + <datatype> + <name name="heart_option"/> + </datatype> + </datatypes> + <funcs> <func> <name name="set_cmd" arity="1"/> @@ -188,12 +195,12 @@ <desc> <p> Valid options <c>set_options</c> are: </p> <taglist> - <tag><c>scheduler</c></tag> + <tag><c>check_schedulers</c></tag> <item> - <p>If enabled, a message will be sent to each scheduler to check its + <p>If enabled, a signal will be sent to each scheduler to check its responsiveness. The system check occurs before any heartbeat sent to the port program. If any scheduler is not responsive enough the - heart program will not receive its heartpeat and terminate the node. + heart program will not receive its heartbeat and thus eventually terminate the node. </p> </item> </taglist> diff --git a/lib/kernel/src/heart.erl b/lib/kernel/src/heart.erl index 273bdcb352..d14598cd05 100644 --- a/lib/kernel/src/heart.erl +++ b/lib/kernel/src/heart.erl @@ -53,9 +53,14 @@ -define(CYCLE_TIMEOUT, 10000). -define(HEART_PORT_NAME, heart_port). +%% valid heart options +-define(SCHEDULER_CHECK_OPT, check_schedulers). + +-type heart_option() :: ?SCHEDULER_CHECK_OPT. + -record(state,{port :: port(), cmd :: [] | binary(), - options :: [atom()], + options :: [heart_option()], callback :: 'undefined' | {atom(), atom()}}). %%--------------------------------------------------------------------- @@ -144,7 +149,7 @@ clear_callback() -> wait(). -spec set_options(Options) -> 'ok' | {'error', {'bad_options', Options}} when - Options :: [atom()]. + Options :: [heart_option()]. set_options(Options) -> ?MODULE ! {self(), set_options, Options}, @@ -314,7 +319,7 @@ no_reboot_shutdown(Port) -> validate_options(Opts) -> validate_options(Opts,[]). validate_options([],Res) -> Res; -validate_options([scheduler=Opt|Opts],Res) -> validate_options(Opts,[Opt|Res]); +validate_options([?SCHEDULER_CHECK_OPT=Opt|Opts],Res) -> validate_options(Opts,[Opt|Res]); validate_options(_,_) -> error. do_cycle_port_program(Caller, Parent, #state{port=Port} = S) -> @@ -365,7 +370,7 @@ get_heart_cmd(Port) -> end. check_system([]) -> ok; -check_system([scheduler|Opts]) -> +check_system([?SCHEDULER_CHECK_OPT|Opts]) -> ok = erts_internal:system_check(schedulers), check_system(Opts). diff --git a/lib/kernel/test/heart_SUITE.erl b/lib/kernel/test/heart_SUITE.erl index 6cf451b10b..39cd29cea0 100644 --- a/lib/kernel/test/heart_SUITE.erl +++ b/lib/kernel/test/heart_SUITE.erl @@ -407,15 +407,15 @@ options_api(Config) when is_list(Config) -> {error, {bad_options, Ls}} = rpc:call(Node, heart, set_options, [Ls]), none = rpc:call(Node, heart, get_options, []), - ok = rpc:call(Node, heart, set_options, [[scheduler]]), - {ok, [scheduler]} = rpc:call(Node, heart, get_options, []), + ok = rpc:call(Node, heart, set_options, [[check_schedulers]]), + {ok, [check_schedulers]} = rpc:call(Node, heart, get_options, []), ok = rpc:call(Node, heart, set_options, [[]]), none = rpc:call(Node, heart, get_options, []), - ok = rpc:call(Node, heart, set_options, [[scheduler]]), - {ok, [scheduler]} = rpc:call(Node, heart, get_options, []), + ok = rpc:call(Node, heart, set_options, [[check_schedulers]]), + {ok, [check_schedulers]} = rpc:call(Node, heart, get_options, []), {error, {bad_options, Ls}} = rpc:call(Node, heart, set_options, [Ls]), - {ok, [scheduler]} = rpc:call(Node, heart, get_options, []), + {ok, [check_schedulers]} = rpc:call(Node, heart, get_options, []), receive after 3000 -> ok end, %% wait 3 secs |