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: / proc / self / root / opt / alt / ruby34 / share / ri / system / Open3 /
Filename : pipeline_w-c.ri
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U:RDoc::AnyMethod[iI"pipeline_w:ETI"Open3::pipeline_w;TT:publico:RDoc::Markup::Document:@parts[#o:RDoc::Markup::Paragraph;	[I"Basically a wrapper for ;TI"-{Process.spawn}[rdoc-ref:Process.spawn] ;TI"
that:;To:RDoc::Markup::BlankLine�o:RDoc::Markup::List:
@type:BULLET:@items[o:RDoc::Markup::ListItem:@label0;	[o;
;	[I":Creates a child process for each of the given +cmds+ ;TI"by calling Process.spawn.;To;;0;	[o;
;	[I"JPipes the +stdout+ from each child to the +stdin+ of the next child, ;TI"Qor, for the first child, pipes the caller's +stdout+ to the child's +stdin+.;T@o;
;	[I";The method does not wait for child processes to exit, ;TI"so the caller must do so.;T@o;
;	[I"?With no block given, returns a 2-element array containing:;T@o;;
;;[o;;0;	[o;
;	[I"3The +stdin+ stream of the first child process.;To;;0;	[o;
;	[I"AAn array of the wait threads for all of the child processes.;T@o;
;	[I"
Example:;T@o:RDoc::Markup::Verbatim;	[I"Dfirst_stdin, wait_threads = Open3.pipeline_w('sort', 'cat -n')
;TI"o# => [#<IO:fd 7>, [#<Process::Waiter:0x000055e8de928278 run>, #<Process::Waiter:0x000055e8de923e80 run>]]
;TI"'first_stdin.puts("foo\nbar\nbaz")
;TI"+first_stdin.close # Send EOF to sort.
;TI"(wait_threads.each do |wait_thread|
;TI"  wait_thread.join
;TI"	end
;T:@format0o;
;	[I"Output:;T@o;;	[I"1 bar
;TI"2 baz
;TI"3 foo
;T;0o;
;	[I"AWith a block given, calls the block with the +stdin+ stream ;TI"!of the first child process, ;TI"(and an array of the wait processes:;T@o;;	[I"GOpen3.pipeline_w('sort', 'cat -n') do |first_stdin, wait_threads|
;TI")  first_stdin.puts("foo\nbar\nbaz")
;TI"-  first_stdin.close # Send EOF to sort.
;TI"*  wait_threads.each do |wait_thread|
;TI"    wait_thread.join
;TI"  end
;TI"	end
;T;0o;
;	[I"Output:;T@o;;	[I"1 bar
;TI"2 baz
;TI"3 foo
;T;0o;
;	[I"LLike Process.spawn, this method has potential security vulnerabilities ;TI"%if called with untrusted input; ;TI"Psee {Command Injection}[rdoc-ref:command_injection.rdoc@Command+Injection].;T@o;
;	[I"HIf the first argument is a hash, it becomes leading argument +env+ ;TI"$in each call to Process.spawn; ;TI"Isee {Execution Environment}[rdoc-ref:Process@Execution+Environment].;T@o;
;	[I"LIf the last argument is a hash, it becomes trailing argument +options+ ;TI"$in each call to Process.spawn; ;TI"Asee {Execution Options}[rdoc-ref:Process@Execution+Options].;T@o;
;	[I"1Each remaining argument in +cmds+ is one of:;T@o;;
;;[o;;0;	[o;
;	[I"GA +command_line+: a string that begins with a shell reserved word ;TI"Aor special built-in, or contains one or more metacharacters.;To;;0;	[o;
;	[I"BAn +exe_path+: the string path to an executable to be called.;To;;0;	[o;
;	[I"<An array containing a +command_line+ or an +exe_path+, ;TI">along with zero or more string arguments for the command.;T@o;
;	[I"aSee {Argument command_line or exe_path}[rdoc-ref:Process@Argument+command_line+or+exe_path].;T:
@fileI"lib/open3.rb;T:0@omit_headings_from_table_of_contents_below0I"ROpen3.pipeline_w([env, ] *cmds, options = {}) -> [first_stdin, wait_threads]
;T0[�I"(*cmds, &block);T@FI"
Open3;TcRDoc::NormalModule00