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author | W. J. van der Laan <laanwj@protonmail.com> | 2022-01-05 15:32:22 +0100 |
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committer | W. J. van der Laan <laanwj@protonmail.com> | 2022-01-05 15:32:53 +0100 |
commit | 8f1c28a609b203e0d0a844d9cc5ada9eb9160a5e (patch) | |
tree | 28d33dd9053024ac2274d9a8443579b93ac8240b /src/util | |
parent | 847cf7690def0431262b0300a46d6fa0bd40891f (diff) | |
parent | 6bf6e9fd9dece67878595a5f3361851c25833c49 (diff) | |
download | bitcoin-8f1c28a609b203e0d0a844d9cc5ada9eb9160a5e.tar.xz |
Merge bitcoin/bitcoin#21879: refactor: wrap accept() and extend usage of Sock
6bf6e9fd9dece67878595a5f3361851c25833c49 net: change CreateNodeFromAcceptedSocket() to take Sock (Vasil Dimov)
9e3cbfca7c9efa620c0cce73503772805cc1fa82 net: use Sock in CConnman::ListenSocket (Vasil Dimov)
f8bd13f85ae5404adef23a52719d804a5c36b1e8 net: add new method Sock::Accept() that wraps accept() (Vasil Dimov)
Pull request description:
_This is a piece of https://github.com/bitcoin/bitcoin/pull/21878, chopped off to ease review._
Introduce an `accept(2)` wrapper `Sock::Accept()` and extend the usage of `Sock` in `CConnman::ListenSocket` and `CreateNodeFromAcceptedSocket()`.
ACKs for top commit:
laanwj:
Code review ACK 6bf6e9fd9dece67878595a5f3361851c25833c49
jamesob:
ACK 6bf6e9fd9dece67878595a5f3361851c25833c49 ([`jamesob/ackr/21879.2.vasild.wrap_accept_and_extend_u`](https://github.com/jamesob/bitcoin/tree/ackr/21879.2.vasild.wrap_accept_and_extend_u))
jonatack:
ACK 6bf6e9fd9dece67878595a5f3361851c25833c49 per `git range-diff ea989de 976f6e8 6bf6e9f` -- only change since my last review was `s/listen_socket.socket/listen_socket.sock->Get()/` in `src/net.cpp: CConnman::SocketHandlerListening()` -- re-read the code changes, rebase/debug build/ran units following my previous full review (https://github.com/bitcoin/bitcoin/pull/21879#pullrequestreview-761251278)
w0xlt:
tACK 6bf6e9f
Tree-SHA512: dc6d1acc4f255f1f7e8cf6dd74e97975cf3d5959e9fc2e689f74812ac3526d5ee8b6a32eca605925d10a4f7b6ff1ce5e900344311e587d19786b48c54d021b64
Diffstat (limited to 'src/util')
-rw-r--r-- | src/util/sock.cpp | 27 | ||||
-rw-r--r-- | src/util/sock.h | 9 |
2 files changed, 36 insertions, 0 deletions
diff --git a/src/util/sock.cpp b/src/util/sock.cpp index 1a4d67a65e..2029d70a37 100644 --- a/src/util/sock.cpp +++ b/src/util/sock.cpp @@ -10,6 +10,7 @@ #include <util/system.h> #include <util/time.h> +#include <memory> #include <stdexcept> #include <string> @@ -73,6 +74,32 @@ int Sock::Connect(const sockaddr* addr, socklen_t addr_len) const return connect(m_socket, addr, addr_len); } +std::unique_ptr<Sock> Sock::Accept(sockaddr* addr, socklen_t* addr_len) const +{ +#ifdef WIN32 + static constexpr auto ERR = INVALID_SOCKET; +#else + static constexpr auto ERR = SOCKET_ERROR; +#endif + + std::unique_ptr<Sock> sock; + + const auto socket = accept(m_socket, addr, addr_len); + if (socket != ERR) { + try { + sock = std::make_unique<Sock>(socket); + } catch (const std::exception&) { +#ifdef WIN32 + closesocket(socket); +#else + close(socket); +#endif + } + } + + return sock; +} + int Sock::GetSockOpt(int level, int opt_name, void* opt_val, socklen_t* opt_len) const { return getsockopt(m_socket, level, opt_name, static_cast<char*>(opt_val), opt_len); diff --git a/src/util/sock.h b/src/util/sock.h index 59cc8c0b1d..7510482857 100644 --- a/src/util/sock.h +++ b/src/util/sock.h @@ -10,6 +10,7 @@ #include <util/time.h> #include <chrono> +#include <memory> #include <string> /** @@ -97,6 +98,14 @@ public: [[nodiscard]] virtual int Connect(const sockaddr* addr, socklen_t addr_len) 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. + * The returned unique_ptr is empty if `accept()` failed in which case errno will be set. + */ + [[nodiscard]] virtual std::unique_ptr<Sock> Accept(sockaddr* addr, socklen_t* addr_len) const; + + /** * getsockopt(2) wrapper. Equivalent to * `getsockopt(this->Get(), level, opt_name, opt_val, opt_len)`. Code that uses this * wrapper can be unit tested if this method is overridden by a mock Sock implementation. |