libs/process/doc/windows_pseudocode.xml

   1 <?xml version="1.0" standalone="yes"?>
   2 <programlisting>
   3 for (auto &amp; s : seq)
   4     s.<methodname alt="boost::process::extend::handler::on_setup">on_setup</methodname>(*this);
   5
   6 if (<methodname alt="boost::process::extend::windows_executor::error">error</methodname>())
   7 {
   8     for (auto &amp; s : seq)
   9        s.<methodname alt="boost::process::extend::handler::on_error">on_error</methodname>(*this, <methodname alt="boost::process::extend::windows_executor::error">error</methodname>());
  10     return <classname alt="boost::process::child">child</classname>();
  11 }
  12 int err_code = <ulink url="https://msdn.microsoft.com/en-us/library/windows/desktop/ms682425.aspx">CreateProcess</ulink>(
  13          exe,
  14          cmd_line,
  15          proc_attrs,
  16          thread_attrs,
  17          creation_flags,
  18          env,
  19          work_dir,
  20          startup_info,
  21          proc_info);
  22
  23 <classname alt="boost::process::child">child</classname> c(proc_info, exit_code);
  24
  25 if (<methodname alt="boost::process::extend::windows_executor::error">error</methodname>())
  26     for (auto &amp; s : seq)
  27         s.<methodname alt="boost::process::extend::handler::on_error">on_error</methodname>(*this, <methodname alt="boost::process::extend::windows_executor::error">error</methodname>());
  28 else
  29     for (auto &amp; s : seq)
  30         s.<methodname alt="boost::process::extend::handler::on_error">on_success</methodname>(*this);
  31
  32 //now we check again, because a on_success handler might've errored.
  33 if (<methodname alt="boost::process::extend::windows_executor::error">error</methodname>())
  34 {
  35     for (auto &amp; s : seq)
  36         s.<methodname alt="boost::process::extend::handler::on_error">on_error</methodname>(*this, <methodname alt="boost::process::extend::windows_executor::error">error</methodname>());
  37     return <classname alt="boost::process::child">child</classname>();
  38 }
  39 else
  40     return c;
  41
  42 </programlisting>