net: add new method Sock::Listen() that wraps listen()

This will help to increase `Sock` usage and make more code mockable.

2 files changed, 11 insertions, 0 deletions

diff --git a/src/util/sock.cpp b/src/util/sock.cpp
index 89d7a1a7ec..6097c29170 100644
--- a/src/util/sock.cpp
+++ b/src/util/sock.cpp
@@ -79,6 +79,11 @@ int Sock::Bind(const sockaddr* addr, socklen_t addr_len) const
     return bind(m_socket, addr, addr_len);
 }
 
+int Sock::Listen(int backlog) const
+{
+    return listen(m_socket, backlog);
+}
+
 std::unique_ptr<Sock> Sock::Accept(sockaddr* addr, socklen_t* addr_len) const
 {
 #ifdef WIN32
diff --git a/src/util/sock.h b/src/util/sock.h
index 6a7840f4e2..6835757328 100644
--- a/src/util/sock.h
+++ b/src/util/sock.h
@@ -104,6 +104,12 @@ public:
     [[nodiscard]] virtual int Bind(const sockaddr* addr, socklen_t addr_len) const;
 
     /**
+     * listen(2) wrapper. Equivalent to `listen(this->Get(), backlog)`. Code that uses this
+     * wrapper can be unit tested if this method is overridden by a mock Sock implementation.
+     */
+    [[nodiscard]] virtual int Listen(int backlog) const;
+
+    /**
      * accept(2) wrapper. Equivalent to `std::make_unique<Sock>(accept(this->Get(), addr, addr_len))`.
      * Code that uses this wrapper can be unit tested if this method is overridden by a mock Sock
      * implementation.