FileDescriptor: add convenience wrapper for pidfd_openHEADmain

1 files changed, 5 insertions, 0 deletions

diff --git a/linuxnamespaces/filedescriptor.py b/linuxnamespaces/filedescriptor.py
index e4eff9b..2cf8442 100644
--- a/linuxnamespaces/filedescriptor.py
+++ b/linuxnamespaces/filedescriptor.py
@@ -41,6 +41,11 @@ class FileDescriptor(int):
         """Duplicate the file to the given file descriptor number."""
         return FileDescriptor(os.dup2(self, fd2, inheritable))
 
+    @classmethod
+    def pidfd_open(cls, pid: int, flags: int = 0) -> typing.Self:
+        """Convenience wrapper for os.pidfd_open."""
+        return cls(os.pidfd_open(pid, flags))
+
     def fileno(self) -> int:
         """Return self such that it satisfies the HasFileno protocol."""
         return self