commit 1e9d74d5fb3c18769dc87c6d3125a05e7d021372
author Yi Chou <yich@google.com> Sun Apr 17 15:12:52 2022
committer Chromeos LUCI <chromeos-scoped@luci-project-accounts.iam.gserviceaccount.com> Tue Apr 19 04:38:45 2022
tree 25a409cdad2626b0a200c0f3ec36d37103e9b694
parent 989e2337c1cd9de5b72c84cb06025661881b86f6

trousers: Support move operator for ScopedTssType

The scoped object would be more useful when it support move.

BUG=b:174816474
TEST=Build OK.

Change-Id: I801c0767b5a19ca0fa844c980e109fc754aca621
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/third_party/trousers/+/3583295
Tested-by: Yi Chou <yich@google.com>
Reviewed-by: Andrey Pronin <apronin@chromium.org>
Commit-Queue: Yi Chou <yich@google.com>

src/include/trousers/scoped_tss_type.h

diff --git a/src/include/trousers/scoped_tss_type.h b/src/include/trousers/scoped_tss_type.h
index caa9141..6f33837 100644
--- a/src/include/trousers/scoped_tss_type.h
+++ b/src/include/trousers/scoped_tss_type.h
@@ -80,8 +80,24 @@
   explicit ScopedTssType(TSS_HCONTEXT c = 0, TssType t = 0) :
      context_(c),
      type_(t) {}
-  ScopedTssType(const ScopedTssType&) = delete;
-  ScopedTssType& operator=(const ScopedTssType&) = delete;
+
+  ScopedTssType(const ScopedTssType &) = delete;
+  ScopedTssType &operator=(const ScopedTssType &) = delete;
+
+  explicit ScopedTssType(ScopedTssType &&other)
+      : context_(other.context_), type_(other.type_) {
+    other.context_ = 0;
+    other.type_ = 0;
+  }
+
+  ScopedTssType &operator=(ScopedTssType &&other) {
+    release_(context_, type_);
+    context_ = other.context_;
+    type_ = other.type_;
+    other.context_ = 0;
+    other.type_ = 0;
+    return *this;
+  }
 
   virtual ~ScopedTssType() {
     release_(context_, type_);