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Edit File: waitpid-c.yaml

--- !ruby/object:RI::MethodDescription aliases: [] block_params: comment: - !ruby/struct:SM::Flow::P body: "Waits for a child process to exit, returns its process id, and sets <tt>$?</tt> to a <tt>Process::Status</tt> object containing information on that process. Which child it waits on depends on the value of <em>pid</em>:" - !ruby/object:SM::Flow::LIST contents: - !ruby/struct:SM::Flow::LI label: "> 0:" body: Waits for the child whose process ID equals <em>pid</em>. - !ruby/struct:SM::Flow::LI label: "0:" body: Waits for any child whose process group ID equals that of the calling process. - !ruby/struct:SM::Flow::LI label: "-1:" body: Waits for any child process (the default if no <em>pid</em> is given). - !ruby/struct:SM::Flow::LI label: "< -1:" body: Waits for any child whose process group ID equals the absolute value of <em>pid</em>. type: :NOTE - !ruby/struct:SM::Flow::P body: The <em>flags</em> argument may be a logical or of the flag values <tt>Process::WNOHANG</tt> (do not block if no child available) or <tt>Process::WUNTRACED</tt> (return stopped children that haven't been reported). Not all flags are available on all platforms, but a flag value of zero will work on all platforms. - !ruby/struct:SM::Flow::P body: Calling this method raises a <tt>SystemError</tt> if there are no child processes. Not available on all platforms. - !ruby/struct:SM::Flow::VERB body: " include Process\n fork { exit 99 } #=&gt; 27429\n wait #=&gt; 27429\n $?.exitstatus #=&gt; 99\n\n pid = fork { sleep 3 } #=&gt; 27440\n Time.now #=&gt; Wed Apr 09 08:57:09 CDT 2003\n waitpid(pid, Process::WNOHANG) #=&gt; nil\n Time.now #=&gt; Wed Apr 09 08:57:09 CDT 2003\n waitpid(pid, 0) #=&gt; 27440\n Time.now #=&gt; Wed Apr 09 08:57:12 CDT 2003\n" full_name: Process::waitpid is_singleton: true name: waitpid params: | Process.wait() => fixnum Process.wait(pid=-1, flags=0) => fixnum Process.waitpid(pid=-1, flags=0) => fixnum visibility: public