LibCore/Process: Add DupFd file action

This commit provides a new file action allowing callers to provide a `write_fd` that Process will "redirect" the child's stdin/stdout to.
Author: https://github.com/rmg-x Commit: aa4dcca0b2 Pull-request: https://github.com/LadybirdBrowser/ladybird/pull/2553 Reviewed-by: https://github.com/ADKaster ✅ Reviewed-by: https://github.com/shannonbooth
2025-07-28 11:49:44 +00:00 · 2024-11-27 15:43:12 -06:00 · 2024-11-27 15:43:12 -06:00 · aa4dcca0b2 · 2024-12-06 00:09:34 +00:00
commit aa4dcca0b2
parent cddbe7d10f
2 changed files with 9 additions and 3 deletions
--- a/Libraries/LibCore/Process.cpp
+++ b/Libraries/LibCore/Process.cpp
@ -121,6 +121,10 @@ ErrorOr<Process> Process::spawn(ProcessSpawnOptions const& options)
            [&](FileAction::CloseFile const& action) -> ErrorOr<void> {
                CHECK(posix_spawn_file_actions_addclose(&spawn_actions, action.fd));
                return {};
+            },
+            [&](FileAction::DupFd const& action) -> ErrorOr<void> {
+                CHECK(posix_spawn_file_actions_adddup2(&spawn_actions, action.write_fd, action.fd));
+                return {};
            }));
    }