From 4008da93e88acaf66b1eeb43eb74a3ad8ed31df7 Mon Sep 17 00:00:00 2001
From: Hungming Chen <nuccachen@google.com>
Date: Thu, 27 Feb 2020 17:26:40 +0800
Subject: [PATCH] BpfMap: override copy assignment operator

Test: build, atest
Bug: 149963652
Change-Id: I864ca00762a4e5c910454dd9dc023b74c67065d6
---
 libbpf_android/include/bpf/BpfMap.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/libbpf_android/include/bpf/BpfMap.h b/libbpf_android/include/bpf/BpfMap.h
index 25096db..9fdcebb 100644
--- a/libbpf_android/include/bpf/BpfMap.h
+++ b/libbpf_android/include/bpf/BpfMap.h
@@ -128,6 +128,11 @@ class BpfMap {
 
     const base::unique_fd& getMap() const { return mMapFd; };
 
+    // Copy assignment operator
+    void operator=(const BpfMap<Key, Value>& other) {
+        mMapFd.reset(fcntl(other.mMapFd.get(), F_DUPFD_CLOEXEC, 0));
+    }
+
     // Move constructor
     void operator=(BpfMap<Key, Value>&& other) noexcept {
         mMapFd = std::move(other.mMapFd);