fixes the exit-code error on osx builds.

include/boost/process/v2/stdio.hpp

@@ -303,14 +303,12 @@ struct process_stdio
 #if defined(BOOST_PROCESS_V2_WINDOWS)
   error_code on_setup(windows::default_launcher & launcher, const filesystem::path &, const std::wstring &)
   {
+
     launcher.startup_info.StartupInfo.dwFlags |= STARTF_USESTDHANDLES;
     launcher.startup_info.StartupInfo.hStdInput  = in.prepare();
     launcher.startup_info.StartupInfo.hStdOutput = out.prepare();
     launcher.startup_info.StartupInfo.hStdError  = err.prepare();
-    launcher.inherited_handles.reserve(launcher.inherited_handles.size() + 3);
-    launcher.inherited_handles.push_back(launcher.startup_info.StartupInfo.hStdInput);
-    launcher.inherited_handles.push_back(launcher.startup_info.StartupInfo.hStdOutput);
-    launcher.inherited_handles.push_back(launcher.startup_info.StartupInfo.hStdError);
+    launcher.inherit_handles = true;
     return error_code {};
   };
 #else

include/boost/process/v2/windows/as_user_launcher.hpp

@@ -91,21 +91,13 @@ struct as_user_launcher : default_launcher
       detail::on_error(*this, executable, command_line, ec, inits...);
       return basic_process<Executor>(exec);
     }
-
-    if (!inherited_handles.empty())
-    {
-      set_handle_list(ec);
-      if (ec)
-        return basic_process<Executor>(exec);
-    }
-
     auto ok = ::CreateProcessAsUserW(
         token,
         executable.empty() ? nullptr : executable.c_str(),
         command_line.empty() ? nullptr : &command_line.front(),
         process_attributes,
         thread_attributes,
-        inherited_handles.empty() ? FALSE : TRUE,
+        inherit_handles ? TRUE : FALSE,
         creation_flags,
         environment,
         current_directory.empty() ? nullptr : current_directory.c_str(),

include/boost/process/v2/windows/default_launcher.hpp

@@ -19,8 +19,6 @@
 #include <boost/process/v2/error.hpp>
 
 #include <numeric>
-#include <memory>
-#include <type_traits>
 #include <windows.h>
 
 #if defined(BOOST_PROCESS_V2_STANDALONE)
@@ -209,8 +207,8 @@ struct default_launcher
   SECURITY_ATTRIBUTES * process_attributes = nullptr;
   //// The thread_attributes passed to CreateProcess
   SECURITY_ATTRIBUTES * thread_attributes = nullptr;
-  /// The inhreited_handles option. bInheritHandles will be true if not empty..
-  std::vector<HANDLE> inherited_handles;
+  /// The bInheritHandles option. Needs to be set to true by any initializers using handles.
+  bool inherit_handles = false;
   /// The creation flags of the process. Initializers may add to them; extended startupinfo is assumed.
   DWORD creation_flags{EXTENDED_STARTUPINFO_PRESENT};
   /// A pointer to the subprocess environment.
@@ -296,26 +294,18 @@ struct default_launcher
     auto command_line = this->build_command_line(executable, std::forward<Args>(args));
 
     ec = detail::on_setup(*this, executable, command_line, inits...);
-
     if (ec)
     {
       detail::on_error(*this, executable, command_line, ec, inits...);
       return basic_process<Executor>(exec);
     }
 
-    if (!inherited_handles.empty())
-    {
-      set_handle_list(ec);
-      if (ec)
-        return basic_process<Executor>(exec);
-    }
-
     auto ok = ::CreateProcessW(
         executable.empty() ? nullptr : executable.c_str(),
         command_line.empty() ? nullptr : &command_line.front(),
         process_attributes,
         thread_attributes,
-        inherited_handles.empty() ? FALSE : TRUE,
+        inherit_handles ? TRUE : FALSE,
         creation_flags,
         environment,
         current_directory.empty() ? nullptr : current_directory.c_str(),
@@ -413,18 +403,6 @@ struct default_launcher
     return args;
   }
 
-  struct lpproc_thread_closer
-  {
-    void operator()(::LPPROC_THREAD_ATTRIBUTE_LIST l)
-    {
-      ::DeleteProcThreadAttributeList(l);
-      ::HeapFree(GetProcessHeap(), 0, l);
-    }
-  };
-  std::unique_ptr<std::remove_pointer<LPPROC_THREAD_ATTRIBUTE_LIST>::type, lpproc_thread_closer> proc_attribute_list_storage;
-
-  BOOST_PROCESS_V2_DECL LPPROC_THREAD_ATTRIBUTE_LIST get_thread_attribute_list(error_code & ec);
-  BOOST_PROCESS_V2_DECL void set_handle_list(error_code & ec);
 };
 
 

src/windows/default_launcher.cpp

@@ -75,45 +75,6 @@ namespace windows
     return itr - begin;
   }
 
-  LPPROC_THREAD_ATTRIBUTE_LIST default_launcher::get_thread_attribute_list(error_code & ec)
-  {
-    if (startup_info.lpAttributeList != nullptr)
-      return startup_info.lpAttributeList;
-    SIZE_T size;
-    if (!(::InitializeProcThreadAttributeList(NULL, 1, 0, &size) ||
-          GetLastError() == ERROR_INSUFFICIENT_BUFFER))
-    {
-      BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
-      return nullptr;
-    }
-
-    LPPROC_THREAD_ATTRIBUTE_LIST lpAttributeList = reinterpret_cast<LPPROC_THREAD_ATTRIBUTE_LIST>(::HeapAlloc(::GetProcessHeap(), 0, size));
-    if (lpAttributeList == nullptr)
-      return nullptr;
-
-    if (!::InitializeProcThreadAttributeList(lpAttributeList, 1, 0, &size))
-    {
-      BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
-      ::HeapFree(GetProcessHeap(), 0, lpAttributeList);
-      return nullptr;
-    }
-
-    proc_attribute_list_storage.reset(lpAttributeList);
-    startup_info.lpAttributeList = proc_attribute_list_storage.get();
-    return startup_info.lpAttributeList;
-  }
-
-  void default_launcher::set_handle_list(error_code & ec)
-  {
-    auto tl = get_thread_attribute_list(ec);
-    if (ec)
-      return;
-    if (!::UpdateProcThreadAttribute(
-        tl, 0, PROC_THREAD_ATTRIBUTE_HANDLE_LIST,
-        inherited_handles.data(), inherited_handles.size() * sizeof(HANDLE), nullptr, nullptr))
-      BOOST_PROCESS_V2_ASSIGN_LAST_ERROR(ec);
-  }
-
 }
 BOOST_PROCESS_V2_END_NAMESPACE
 

test/v1/exit_code.cpp

@@ -148,12 +148,17 @@ BOOST_AUTO_TEST_CASE(async_nowait, *boost::unit_test::timeout(10))
     boost::asio::io_context io_context;
     bp::child c(
             master_test_suite().argv[1],
-            "test", "--exit-code", "221",
+            "test", "--exit-code", "121",
             ec,
             bp::on_exit=[](int exit_code, std::error_code) mutable {},
             io_context
     );
     BOOST_REQUIRE(!ec);
-    io_context.run_for(std::chrono::milliseconds(100));
-    BOOST_CHECK_EQUAL(221, c.exit_code());
+    while (c.running())
+    {
+      io_context.run_for(std::chrono::milliseconds(10));
+      io_context.restart();
+    }
+
+    BOOST_CHECK_EQUAL(121, c.exit_code());
 }