close null_handle

core/os/os2/process.odin

@@ -264,8 +264,10 @@ specific process, even after it has died.
 **Note(linux)**: The `handle` will be referring to pidfd.
 */
 Process :: struct {
-	pid: int,
+	pid:    int,
 	handle: uintptr,
+	// Implementation specific state/data.
+	_impl:  _Process,
 }
 
 Process_Open_Flags :: bit_set[Process_Open_Flag]
@@ -290,21 +292,10 @@ process_open :: proc(pid: int, flags := Process_Open_Flags {}) -> (Process, Erro
 	return _process_open(pid, flags)
 }
 
-
-/*
-OS-specific process attributes.
-*/
-Process_Attributes :: struct {
-	sys_attr: _Sys_Process_Attributes,
-}
-
 /*
 	The description of how a process should be created.
 */
 Process_Desc :: struct {
-	// OS-specific attributes.
-	sys_attr: Process_Attributes,
-
 	// The working directory of the process. If the string has length 0, the
 	// working directory is assumed to be the current working directory of the
 	// current process.