diff options
Diffstat (limited to 'lib/stdlib/doc/src/sys.xml')
| -rw-r--r-- | lib/stdlib/doc/src/sys.xml | 249 |
1 files changed, 209 insertions, 40 deletions
diff --git a/lib/stdlib/doc/src/sys.xml b/lib/stdlib/doc/src/sys.xml index 9fe816e33a..e22ca89ef5 100644 --- a/lib/stdlib/doc/src/sys.xml +++ b/lib/stdlib/doc/src/sys.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2018</year> + <year>1996</year><year>2019</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -32,7 +32,7 @@ <rev></rev> <file>sys.xml</file> </header> - <module>sys</module> + <module since="">sys</module> <modulesummary>A functional interface to system messages.</modulesummary> <description> <p>This module contains functions for sending system messages used by @@ -114,6 +114,154 @@ </datatype> <datatype> <name name="system_event"/> + <desc> + <taglist> + <tag><c>{in,<anno>Msg</anno>}</c></tag> + <item> + <p> + Is produced by <c>gen_server</c> and <c>gen_event</c> + when the message <c>Msg</c> arrives. + </p> + </item> + <tag><c>{in,<anno>Msg</anno>,<anno>State</anno>}</c></tag> + <item> + <p> + Is produced by <c>gen_statem</c> + when the message <c>Msg</c> arrives in state <c>State</c>. + </p> + <p> + For <c>gen_statem</c> the <c><anno>Msg</anno></c> term is + an <c>{EventType,EventContent}</c> tuple. + </p> + </item> + <tag><c>{out,<anno>Msg</anno>,<anno>To</anno>}</c></tag> + <item> + <p> + Is produced by <c>gen_statem</c> when the reply <c>Msg</c> + is sent back to <c>To</c> by returning + a <c>{reply,To,Msg}</c> action from the callback module. + </p> + <p> + <c><anno>To</anno></c> is of the same type + as the first argument to <c>gen_statem:reply/2</c>. + </p> + </item> + <tag> + <c>{out,<anno>Msg</anno>,<anno>To</anno>,<anno>State</anno>}</c> + </tag> + <item> + <p> + Is produced by <c>gen_server</c> + when the reply <c><anno>Msg</anno></c> + is sent back to <c><anno>To</anno></c> + by returning a <c>{reply,...}</c> tuple + from the callback module. + </p> + <p> + <c><anno>To</anno></c> is of the same type + as the first argument to <c>gen_server:reply/2</c>. + </p> + <p> + <c><anno>State</anno></c> is the new server state. + </p> + </item> + <tag> + <c>{noreply,<anno>State</anno>}</c> + </tag> + <item> + <p> + Is produced by <c>gen_server</c> + when a <c>{noreply,...}</c> tuple is returned + from the callback module. + </p> + <p> + <c><anno>State</anno></c> is the new server state. + </p> + </item> + <tag> + <c>{continue,<anno>Continuation</anno>}</c> + </tag> + <item> + <p> + Is produced by <c>gen_server</c> + when a <c>{continue,<anno>Continuation</anno>}</c> + tuple is returned from the callback module. + </p> + </item> + <tag> + <c>{code_change,<anno>Event</anno>,<anno>State</anno>}</c> + </tag> + <item> + <p> + Is produced by <c>gen_statem</c> + when the message <c><anno>Event</anno></c> + arrives in state <c><anno>State</anno></c> + as the first event after a code change. + </p> + <p> + <c><anno>Event</anno></c> is + an <c>{EventType,EventContent}</c> tuple. + </p> + </item> + <tag> + <c> + {postpone,<anno>Event</anno>,<anno>State</anno>,<anno>NextState</anno>} + </c> + </tag> + <item> + <p> + Is produced by <c>gen_statem</c> + when the message <c><anno>Event</anno></c> + is postponed in state <c><anno>State</anno></c>. + <c><anno>NextState</anno></c> is the new state. + </p> + <p> + <c><anno>Event</anno></c> is + an <c>{EventType,EventContent}</c> tuple. + </p> + </item> + <tag> + <c> + {consume,<anno>Event</anno>,<anno>State</anno>,<anno>NextState</anno>} + </c> + </tag> + <item> + <p> + Is produced by <c>gen_statem</c> + when the message <c><anno>Event</anno></c> + is consumed in state <c><anno>State</anno></c>. + <c><anno>NextState</anno></c> is the new state. + </p> + <p> + <c><anno>Event</anno></c> is + an <c>{EventType,EventContent}</c> tuple. + </p> + </item> + <tag> + <c> + {enter,<anno>State</anno>} + </c> + </tag> + <item> + <p> + Is produced by <c>gen_statem</c> + when the first state <c><anno>State</anno></c> is entered. + </p> + </item> + <tag> + <c> + {terminate,<anno>Reason</anno>,<anno>State</anno>} + </c> + </tag> + <item> + <p> + Is produced by <c>gen_statem</c> + when it terminates with reason <c><anno>Reason</anno></c> + in state <c><anno>State</anno></c>. + </p> + </item> + </taglist> + </desc> </datatype> <datatype> <name name="dbg_opt"/> @@ -123,14 +271,17 @@ <name name="dbg_fun"/> </datatype> <datatype> + <name name="debug_option"/> + </datatype> + <datatype> <name name="format_fun"/> </datatype> </datatypes> <funcs> <func> - <name name="change_code" arity="4"/> - <name name="change_code" arity="5"/> + <name name="change_code" arity="4" since=""/> + <name name="change_code" arity="5" since=""/> <fsummary>Send the code change system message to the process.</fsummary> <desc> <p>Tells the process to change code. The process must be @@ -143,8 +294,8 @@ </func> <func> - <name name="get_state" arity="1"/> - <name name="get_state" arity="2"/> + <name name="get_state" arity="1" since="OTP R16B01"/> + <name name="get_state" arity="2" since="OTP R16B01"/> <fsummary>Get the state of the process.</fsummary> <desc> <p>Gets the state of the process.</p> @@ -227,8 +378,8 @@ </func> <func> - <name name="get_status" arity="1"/> - <name name="get_status" arity="2"/> + <name name="get_status" arity="1" since=""/> + <name name="get_status" arity="2" since=""/> <fsummary>Get the status of the process.</fsummary> <desc> <p>Gets the status of the process.</p> @@ -265,8 +416,8 @@ </func> <func> - <name name="install" arity="2"/> - <name name="install" arity="3"/> + <name name="install" arity="2" since=""/> + <name name="install" arity="3" since=""/> <fsummary>Install a debug function in the process.</fsummary> <desc> <p>Enables installation of alternative debug functions. An example of @@ -283,8 +434,8 @@ </func> <func> - <name name="log" arity="2"/> - <name name="log" arity="3"/> + <name name="log" arity="2" since=""/> + <name name="log" arity="3" since=""/> <fsummary>Log system events in memory.</fsummary> <desc> <p>Turns the logging of system events on or off. If on, a @@ -302,8 +453,8 @@ </func> <func> - <name name="log_to_file" arity="2"/> - <name name="log_to_file" arity="3"/> + <name name="log_to_file" arity="2" since=""/> + <name name="log_to_file" arity="3" since=""/> <fsummary>Log system events to the specified file.</fsummary> <desc> <p>Enables or disables the logging of all system events in text @@ -315,8 +466,8 @@ </func> <func> - <name name="no_debug" arity="1"/> - <name name="no_debug" arity="2"/> + <name name="no_debug" arity="1" since=""/> + <name name="no_debug" arity="2" since=""/> <fsummary>Turn off debugging.</fsummary> <desc> <p>Turns off all debugging for the process. This includes @@ -327,8 +478,8 @@ </func> <func> - <name name="remove" arity="2"/> - <name name="remove" arity="3"/> + <name name="remove" arity="2" since=""/> + <name name="remove" arity="3" since=""/> <fsummary>Remove a debug function from the process.</fsummary> <desc> <p>Removes an installed debug function from the @@ -338,8 +489,8 @@ </func> <func> - <name name="replace_state" arity="2"/> - <name name="replace_state" arity="3"/> + <name name="replace_state" arity="2" since="OTP R16B01"/> + <name name="replace_state" arity="3" since="OTP R16B01"/> <fsummary>Replace the state of the process.</fsummary> <desc> <p>Replaces the state of the process, and returns the new state.</p> @@ -451,8 +602,8 @@ </func> <func> - <name name="resume" arity="1"/> - <name name="resume" arity="2"/> + <name name="resume" arity="1" since=""/> + <name name="resume" arity="2" since=""/> <fsummary>Resume a suspended process.</fsummary> <desc> <p>Resumes a suspended process.</p> @@ -460,8 +611,8 @@ </func> <func> - <name name="statistics" arity="2"/> - <name name="statistics" arity="3"/> + <name name="statistics" arity="2" since=""/> + <name name="statistics" arity="3" since=""/> <fsummary>Enable or disable the collections of statistics.</fsummary> <desc> <p>Enables or disables the collection of statistics. If @@ -471,8 +622,8 @@ </func> <func> - <name name="suspend" arity="1"/> - <name name="suspend" arity="2"/> + <name name="suspend" arity="1" since=""/> + <name name="suspend" arity="2" since=""/> <fsummary>Suspend the process.</fsummary> <desc> <p>Suspends the process. When the process is suspended, it @@ -482,8 +633,8 @@ </func> <func> - <name name="terminate" arity="2"/> - <name name="terminate" arity="3"/> + <name name="terminate" arity="2" since="OTP 18.0"/> + <name name="terminate" arity="3" since="OTP 18.0"/> <fsummary>Terminate the process.</fsummary> <desc> <p>Orders the process to terminate with the @@ -494,8 +645,8 @@ </func> <func> - <name name="trace" arity="2"/> - <name name="trace" arity="3"/> + <name name="trace" arity="2" since=""/> + <name name="trace" arity="3" since=""/> <fsummary>Print all system events on <c>standard_io</c>.</fsummary> <desc> <p>Prints all system events on <c>standard_io</c>. The events are @@ -518,7 +669,7 @@ <funcs> <func> - <name name="debug_options" arity="1"/> + <name name="debug_options" arity="1" since=""/> <fsummary>Convert a list of options to a debug structure.</fsummary> <desc> <p>Can be used by a process that initiates a debug @@ -529,9 +680,15 @@ </func> <func> - <name name="get_debug" arity="3"/> + <name name="get_debug" arity="3" since=""/> <fsummary>Get the data associated with a debug option.</fsummary> <desc> + <warning> + <p> + <c>get_debug/3</c> is deprecated since it returns + data of an internal type only useful for debugging. + </p> + </warning> <p>Gets the data associated with a debug option. <c><anno>Default</anno></c> is returned if <c><anno>Item</anno></c> is not found. Can be @@ -541,7 +698,7 @@ </func> <func> - <name name="handle_debug" arity="4"/> + <name name="handle_debug" arity="4" since=""/> <fsummary>Generate a system event.</fsummary> <desc> <p>This function is called by a process when it generates a @@ -556,7 +713,7 @@ </func> <func> - <name name="handle_system_msg" arity="6"/> + <name name="handle_system_msg" arity="6" since=""/> <fsummary>Take care of system messages.</fsummary> <desc> <p>This function is used by a process module to take care of system @@ -594,7 +751,7 @@ </func> <func> - <name name="print_log" arity="1"/> + <name name="print_log" arity="1" since=""/> <fsummary>Print the logged events in the debug structure.</fsummary> <desc> <p>Prints the logged system events in the debug structure, @@ -605,7 +762,19 @@ </func> <func> - <name>Module:system_code_change(Misc, Module, OldVsn, Extra) -> + <name name="get_log" arity="1" since="OTP-22.0"/> + <fsummary>Return the logged events in the debug structure.</fsummary> + <desc> + <p> + Returns the logged system events in the debug structure, + that is the last argument to + <seealso marker="#handle_debug/4"><c>handle_debug/4</c></seealso>. + </p> + </desc> + </func> + + <func> + <name since="">Module:system_code_change(Misc, Module, OldVsn, Extra) -> {ok, NMisc}</name> <fsummary>Called when the process is to perform a code change.</fsummary> <type> @@ -628,7 +797,7 @@ </func> <func> - <name>Module:system_continue(Parent, Debug, Misc) -> none()</name> + <name since="">Module:system_continue(Parent, Debug, Misc) -> none()</name> <fsummary>Called when the process is to continue its execution.</fsummary> <type> <v>Parent = pid()</v> @@ -644,7 +813,7 @@ </func> <func> - <name>Module:system_get_state(Misc) -> {ok, State}</name> + <name since="OTP 17.0">Module:system_get_state(Misc) -> {ok, State}</name> <fsummary>Called when the process is to return its current state. </fsummary> <type> @@ -661,7 +830,7 @@ </func> <func> - <name>Module:system_replace_state(StateFun, Misc) -> + <name since="OTP 17.0">Module:system_replace_state(StateFun, Misc) -> {ok, NState, NMisc}</name> <fsummary>Called when the process is to replace its current state. </fsummary> @@ -681,7 +850,7 @@ </func> <func> - <name>Module:system_terminate(Reason, Parent, Debug, Misc) -> none()</name> + <name since="">Module:system_terminate(Reason, Parent, Debug, Misc) -> none()</name> <fsummary>Called when the process is to terminate.</fsummary> <type> <v>Reason = term()</v> |