Move pts to rust, and avoid using thread

native/src/Android.mk

@@ -27,7 +27,6 @@ LOCAL_SRC_FILES := \
     core/resetprop/resetprop.cpp \
     core/su/su.cpp \
     core/su/connect.cpp \
-    core/su/pts.cpp \
     core/zygisk/entry.cpp \
     core/zygisk/module.cpp \
     core/zygisk/hook.cpp \

native/src/core/lib.rs

@@ -16,6 +16,7 @@ use logging::{android_logging, setup_logfile, zygisk_close_logd, zygisk_get_logd
 use mount::{find_preinit_device, revert_unmount};
 use resetprop::{persist_delete_prop, persist_get_prop, persist_get_props, persist_set_prop};
 use socket::{recv_fd, recv_fds, send_fd, send_fds};
+use su::{pump_tty, get_pty_num, restore_stdin};
 use std::fs::File;
 use std::mem::ManuallyDrop;
 use std::ops::DerefMut;
@@ -207,6 +208,10 @@ pub mod ffi {
 
         #[namespace = "rust"]
         fn daemon_entry();
+
+        fn pump_tty(infd: i32, outfd: i32);
+        fn get_pty_num(fd: i32) -> i32;
+        fn restore_stdin() -> bool;
     }
 
     // Default constructors

native/src/core/su/mod.rs

@@ -1,4 +1,6 @@
 mod daemon;
 mod db;
+mod pts;
 
 pub use daemon::SuInfo;
+pub use pts::{pump_tty, get_pty_num, restore_stdin};