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Kernel: Make TCPSocket client construction use KResultOr and TRY()

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We don't really have anywhere to propagate the error in NetworkTask at
the moment, since it runs in its own kernel thread and has no direct
userspace caller.
This commit is contained in:
Andreas Kling 2021-09-07 14:44:29 +02:00
parent ed5d04b0ea
commit ededd6aac6
3 changed files with 10 additions and 14 deletions
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15
Kernel/Net/TCPSocket.cpp
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@ -90,21 +90,16 @@ RefPtr<TCPSocket> TCPSocket::from_tuple(const IPv4SocketTuple& tuple)
return {};
});
}
RefPtr<TCPSocket> TCPSocket::create_client(const IPv4Address& new_local_address, u16 new_local_port, const IPv4Address& new_peer_address, u16 new_peer_port)
KResultOr<NonnullRefPtr<TCPSocket>> TCPSocket::try_create_client(const IPv4Address& new_local_address, u16 new_local_port, const IPv4Address& new_peer_address, u16 new_peer_port)
{
auto tuple = IPv4SocketTuple(new_local_address, new_local_port, new_peer_address, new_peer_port);
return sockets_by_tuple().with_exclusive([&](auto& table) -> RefPtr<TCPSocket> {
return sockets_by_tuple().with_exclusive([&](auto& table) -> KResultOr<NonnullRefPtr<TCPSocket>> {
if (table.contains(tuple))
return {};
return EEXIST;
auto receive_buffer = try_create_receive_buffer();
if (receive_buffer.is_error())
return {};
auto client_or_error = TCPSocket::try_create(protocol(), receive_buffer.release_value());
if (client_or_error.is_error())
return {};
auto receive_buffer = TRY(try_create_receive_buffer());
auto client = TRY(TCPSocket::try_create(protocol(), move(receive_buffer)));
auto client = client_or_error.release_value();
client->set_setup_state(SetupState::InProgress);
client->set_local_address(new_local_address);
client->set_local_port(new_local_port);