Move revert_unmount into Rust

native/src/core/deny/revert.cpp

@@ -1,42 +0,0 @@
-#include <set>
-#include <sys/mount.h>
-
-#include <consts.hpp>
-#include <base.hpp>
-#include <core.hpp>
-
-#include "deny.hpp"
-
-using namespace std;
-
-static void lazy_unmount(const char* mountpoint) {
-    if (umount2(mountpoint, MNT_DETACH) != -1)
-        LOGD("denylist: Unmounted (%s)\n", mountpoint);
-}
-
-void revert_unmount() {
-    set<string> targets;
-
-    // Unmount dummy skeletons and MAGISKTMP
-    // since mirror nodes are always mounted under skeleton, we don't have to specifically unmount
-    for (auto &info: parse_mount_info("self")) {
-        if (info.source == "magisk" || // magisktmp tmpfs
-            info.root.starts_with("/adb/modules")) { // bind mount from data partition
-            targets.insert(info.target);
-        }
-    }
-
-    if (targets.empty()) return;
-
-    auto last_target = *targets.cbegin() + '/';
-    for (auto iter = next(targets.cbegin()); iter != targets.cend();) {
-        if (iter->starts_with(last_target)) {
-            iter = targets.erase(iter);
-        } else {
-            last_target = *iter++ + '/';
-        }
-    }
-
-    for (auto &s : targets)
-        lazy_unmount(s.data());
-}