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report_on_exception-c.ri
U:RDoc::AnyMethod[iI"report_on_exception:ETI" Thread::report_on_exception;TT: publico:RDoc::Markup::Document: @parts[o: RDoc::Markup::Paragraph; [I"HReturns the status of the global ``report on exception'' condition.;To: RDoc::Markup::BlankLine o; ; [I"*The default is +true+ since Ruby 2.5.;T@o; ; [I"<All threads created when this flag is true will report ;TI";a message on $stderr if an exception kills the thread.;T@o:RDoc::Markup::Verbatim; [I"&Thread.new { 1.times { raise } } ;T: @format0o; ; [I")will produce this output on $stderr:;T@o; ; [ I"L#<Thread:...> terminated with exception (report_on_exception is true): ;TI"(Traceback (most recent call last): ;TI"/ 2: from -e:1:in `block in <main>' ;TI"% 1: from -e:1:in `times' ;T; 0o; ; [I"4This is done to catch errors in threads early. ;TI"4In some cases, you might not want this output. ;TI"7There are multiple ways to avoid the extra output:;T@o:RDoc::Markup::List: @type: BULLET: @items[o:RDoc::Markup::ListItem: @label0; [o; ; [I"GIf the exception is not intended, the best is to fix the cause of ;TI"1the exception so it does not happen anymore.;To;;0; [o; ; [I"MIf the exception is intended, it might be better to rescue it closer to ;TI";where it is raised rather then let it kill the Thread.;To;;0; [o; ; [ I"GIf it is guaranteed the Thread will be joined with Thread#join or ;TI"?Thread#value, then it is safe to disable this report with ;TI"=<code>Thread.current.report_on_exception = false</code> ;TI" when starting the Thread. ;TI"HHowever, this might handle the exception much later, or not at all ;TI"Oif the Thread is never joined due to the parent thread being blocked, etc.;T@o; ; [I"%See also ::report_on_exception=.;T@o; ; [I"OThere is also an instance level method to set this for a specific thread, ;TI" see #report_on_exception=.;T: @fileI" thread.c;T:0@omit_headings_from_table_of_contents_below0I"3Thread.report_on_exception -> true or false ;T0[ I"();T@FFI" Thread;TcRDoc::NormalClass00