From 1c079e554bdb021ccdab2e47c8cbb05064c973db Mon Sep 17 00:00:00 2001
From: Max Kellermann <max@musicpd.org>
Date: Wed, 14 Oct 2020 20:37:29 +0200
Subject: [PATCH] io/UniqueFileDescriptor: add method Release()
---
src/io/UniqueFileDescriptor.hxx | 8 ++++++++
1 file changed, 8 insertions(+)
diff --git a/src/io/UniqueFileDescriptor.hxx b/src/io/UniqueFileDescriptor.hxx
index 0a6c03c8e..a8bbbea3f 100644
--- a/src/io/UniqueFileDescriptor.hxx
+++ b/src/io/UniqueFileDescriptor.hxx
@@ -64,6 +64,14 @@ public:
return *this;
}
+ /**
+ * Release ownership and return the descriptor as an unmanaged
+ * #FileDescriptor instance.
+ */
+ FileDescriptor Release() noexcept {
+ return std::exchange(*(FileDescriptor *)this, Undefined());
+ }
+
protected:
void Set(int _fd) noexcept {
assert(!IsDefined());