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Kernel: Use RefPtr instead of LockRefPtr for File and subclasses

Browse Source 
This was mostly straightforward, as all the storage locations are
guarded by some related mutex.

The use of old-school associated mutexes instead of MutexProtected
is unfortunate, but the process to modernize such code is ongoing.
This commit is contained in:
Andreas Kling 2023-03-10 07:53:02 +01:00
parent 61bb9103c2
commit 03cc45e5a2
Notes: sideshowbarker 2024-07-16 23:23:26 +09:00 
Author: https://github.com/awesomekling
Commit: https://github.com/SerenityOS/serenity/commit/03cc45e5a2
20 changed files with 63 additions and 63 deletions
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4
Kernel/FileSystem/AnonymousFile.h
View File

@ -13,9 +13,9 @@ namespace Kernel {
class AnonymousFile final : public File {
public:
static ErrorOr<NonnullLockRefPtr<AnonymousFile>> try_create(NonnullLockRefPtr<Memory::AnonymousVMObject> vmobject)
static ErrorOr<NonnullRefPtr<AnonymousFile>> try_create(NonnullLockRefPtr<Memory::AnonymousVMObject> vmobject)
{
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) AnonymousFile(move(vmobject)));
return adopt_nonnull_ref_or_enomem(new (nothrow) AnonymousFile(move(vmobject)));
}
virtual ~AnonymousFile() override;

4
Kernel/FileSystem/FIFO.cpp
View File

@ -16,10 +16,10 @@ namespace Kernel {
static Atomic<int> s_next_fifo_id = 1;
ErrorOr<NonnullLockRefPtr<FIFO>> FIFO::try_create(UserID uid)
ErrorOr<NonnullRefPtr<FIFO>> FIFO::try_create(UserID uid)
{
auto buffer = TRY(DoubleBuffer::try_create("FIFO: Buffer"sv));
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) FIFO(uid, move(buffer)));
return adopt_nonnull_ref_or_enomem(new (nothrow) FIFO(uid, move(buffer)));
}
ErrorOr<NonnullRefPtr<OpenFileDescription>> FIFO::open_direction(FIFO::Direction direction)

2
Kernel/FileSystem/FIFO.h
View File

@ -24,7 +24,7 @@ public:
Writer
};
static ErrorOr<NonnullLockRefPtr<FIFO>> try_create(UserID);
static ErrorOr<NonnullRefPtr<FIFO>> try_create(UserID);
virtual ~FIFO() override;
UserID uid() const { return m_uid; }

4
Kernel/FileSystem/Inode.cpp
View File

@ -180,7 +180,7 @@ void Inode::unregister_watcher(Badge<InodeWatcher>, InodeWatcher& watcher)
});
}
ErrorOr<NonnullLockRefPtr<FIFO>> Inode::fifo()
ErrorOr<NonnullRefPtr<FIFO>> Inode::fifo()
{
MutexLocker locker(m_inode_lock);
VERIFY(metadata().is_fifo());
@ -189,7 +189,7 @@ ErrorOr<NonnullLockRefPtr<FIFO>> Inode::fifo()
if (!m_fifo)
m_fifo = TRY(FIFO::try_create(metadata().uid));
return NonnullLockRefPtr { *m_fifo };
return NonnullRefPtr { *m_fifo };
}
void Inode::set_metadata_dirty(bool metadata_dirty)

4
Kernel/FileSystem/Inode.h
View File

@ -102,7 +102,7 @@ public:
ErrorOr<void> register_watcher(Badge<InodeWatcher>, InodeWatcher&);
void unregister_watcher(Badge<InodeWatcher>, InodeWatcher&);
ErrorOr<NonnullLockRefPtr<FIFO>> fifo();
ErrorOr<NonnullRefPtr<FIFO>> fifo();
bool can_apply_flock(flock const&, Optional<OpenFileDescription const&> = {}) const;
ErrorOr<void> apply_flock(Process const&, OpenFileDescription const&, Userspace<flock const*>, ShouldBlock);
@ -134,7 +134,7 @@ private:
LockWeakPtr<LocalSocket> m_bound_socket;
SpinlockProtected<HashTable<InodeWatcher*>, LockRank::None> m_watchers {};
bool m_metadata_dirty { false };
LockRefPtr<FIFO> m_fifo;
RefPtr<FIFO> m_fifo;
IntrusiveListNode<Inode> m_inode_list_node;
struct Flock {

4
Kernel/FileSystem/InodeFile.h
View File

@ -14,9 +14,9 @@ class Inode;
class InodeFile final : public File {
public:
static ErrorOr<NonnullLockRefPtr<InodeFile>> create(NonnullRefPtr<Inode> inode)
static ErrorOr<NonnullRefPtr<InodeFile>> create(NonnullRefPtr<Inode> inode)
{
auto file = adopt_lock_ref_if_nonnull(new (nothrow) InodeFile(move(inode)));
auto file = adopt_ref_if_nonnull(new (nothrow) InodeFile(move(inode)));
if (!file)
return ENOMEM;
return file.release_nonnull();

4
Kernel/FileSystem/InodeWatcher.cpp
View File

@ -11,9 +11,9 @@
namespace Kernel {
ErrorOr<NonnullLockRefPtr<InodeWatcher>> InodeWatcher::try_create()
ErrorOr<NonnullRefPtr<InodeWatcher>> InodeWatcher::try_create()
{
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) InodeWatcher);
return adopt_nonnull_ref_or_enomem(new (nothrow) InodeWatcher);
}
InodeWatcher::~InodeWatcher()

2
Kernel/FileSystem/InodeWatcher.h
View File

@ -40,7 +40,7 @@ private:
class InodeWatcher final : public File {
public:
static ErrorOr<NonnullLockRefPtr<InodeWatcher>> try_create();
static ErrorOr<NonnullRefPtr<InodeWatcher>> try_create();
virtual ~InodeWatcher() override;
virtual bool can_read(OpenFileDescription const&, u64) const override;

2
Kernel/FileSystem/OpenFileDescription.h
View File

@ -141,7 +141,7 @@ private:
}
RefPtr<Inode> m_inode;
NonnullLockRefPtr<File> m_file;
NonnullRefPtr<File> m_file;
struct State {
OwnPtr<OpenFileDescriptionData> data;

4
Kernel/Net/IPv4Socket.cpp
View File

@ -40,7 +40,7 @@ ErrorOr<NonnullOwnPtr<DoubleBuffer>> IPv4Socket::try_create_receive_buffer()
return DoubleBuffer::try_create("IPv4Socket: Receive buffer"sv, 256 * KiB);
}
ErrorOr<NonnullLockRefPtr<Socket>> IPv4Socket::create(int type, int protocol)
ErrorOr<NonnullRefPtr<Socket>> IPv4Socket::create(int type, int protocol)
{
auto receive_buffer = TRY(IPv4Socket::try_create_receive_buffer());
@ -49,7 +49,7 @@ ErrorOr<NonnullLockRefPtr<Socket>> IPv4Socket::create(int type, int protocol)
if (type == SOCK_DGRAM)
return TRY(UDPSocket::try_create(protocol, move(receive_buffer)));
if (type == SOCK_RAW) {
auto raw_socket = adopt_lock_ref_if_nonnull(new (nothrow) IPv4Socket(type, protocol, move(receive_buffer), {}));
auto raw_socket = adopt_ref_if_nonnull(new (nothrow) IPv4Socket(type, protocol, move(receive_buffer), {}));
if (raw_socket)
return raw_socket.release_nonnull();
return ENOMEM;

2
Kernel/Net/IPv4Socket.h
View File

@ -28,7 +28,7 @@ struct PortAllocationResult {
class IPv4Socket : public Socket {
public:
static ErrorOr<NonnullLockRefPtr<Socket>> create(int type, int protocol);
static ErrorOr<NonnullRefPtr<Socket>> create(int type, int protocol);
virtual ~IPv4Socket() override;
virtual ErrorOr<void> close() override;

4
Kernel/Net/LocalSocket.cpp
View File

@ -43,11 +43,11 @@ ErrorOr<void> LocalSocket::try_for_each(Function<ErrorOr<void>(LocalSocket const
});
}
ErrorOr<NonnullLockRefPtr<LocalSocket>> LocalSocket::try_create(int type)
ErrorOr<NonnullRefPtr<LocalSocket>> LocalSocket::try_create(int type)
{
auto client_buffer = TRY(DoubleBuffer::try_create("LocalSocket: Client buffer"sv));
auto server_buffer = TRY(DoubleBuffer::try_create("LocalSocket: Server buffer"sv));
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) LocalSocket(type, move(client_buffer), move(server_buffer)));
return adopt_nonnull_ref_or_enomem(new (nothrow) LocalSocket(type, move(client_buffer), move(server_buffer)));
}
ErrorOr<SocketPair> LocalSocket::try_create_connected_pair(int type)

2
Kernel/Net/LocalSocket.h
View File

@ -22,7 +22,7 @@ struct SocketPair {
class LocalSocket final : public Socket {
public:
static ErrorOr<NonnullLockRefPtr<LocalSocket>> try_create(int type);
static ErrorOr<NonnullRefPtr<LocalSocket>> try_create(int type);
static ErrorOr<SocketPair> try_create_connected_pair(int type);
virtual ~LocalSocket() override;

28
Kernel/Net/NetworkTask.cpp
View File

@ -30,13 +30,13 @@ static void handle_ipv4(EthernetFrameHeader const&, size_t frame_size, Time cons
static void handle_icmp(EthernetFrameHeader const&, IPv4Packet const&, Time const& packet_timestamp);
static void handle_udp(IPv4Packet const&, Time const& packet_timestamp);
static void handle_tcp(IPv4Packet const&, Time const& packet_timestamp);
static void send_delayed_tcp_ack(LockRefPtr<TCPSocket> socket);
static void send_delayed_tcp_ack(TCPSocket& socket);
static void send_tcp_rst(IPv4Packet const& ipv4_packet, TCPPacket const& tcp_packet, LockRefPtr<NetworkAdapter> adapter);
static void flush_delayed_tcp_acks();
static void retransmit_tcp_packets();
static Thread* network_task = nullptr;
static HashTable<LockRefPtr<TCPSocket>>* delayed_ack_sockets;
static HashTable<NonnullRefPtr<TCPSocket>>* delayed_ack_sockets;
[[noreturn]] static void NetworkTask_main(void*);
@ -57,7 +57,7 @@ bool NetworkTask::is_current()
void NetworkTask_main(void*)
{
delayed_ack_sockets = new HashTable<LockRefPtr<TCPSocket>>;
delayed_ack_sockets = new HashTable<NonnullRefPtr<TCPSocket>>;
WaitQueue packet_wait_queue;
int pending_packets = 0;
@ -229,7 +229,7 @@ void handle_icmp(EthernetFrameHeader const& eth, IPv4Packet const& ipv4_packet,
dbgln_if(ICMP_DEBUG, "handle_icmp: source={}, destination={}, type={:#02x}, code={:#02x}", ipv4_packet.source().to_string(), ipv4_packet.destination().to_string(), icmp_header.type(), icmp_header.code());
{
Vector<NonnullLockRefPtr<IPv4Socket>> icmp_sockets;
Vector<NonnullRefPtr<IPv4Socket>> icmp_sockets;
IPv4Socket::all_sockets().with_exclusive([&](auto& sockets) {
for (auto& socket : sockets) {
if (socket.protocol() == (unsigned)IPv4Protocol::ICMP)
@ -302,11 +302,11 @@ void handle_udp(IPv4Packet const& ipv4_packet, Time const& packet_timestamp)
socket->did_receive(ipv4_packet.source(), udp_packet.source_port(), { &ipv4_packet, sizeof(IPv4Packet) + ipv4_packet.payload_size() }, packet_timestamp);
}
void send_delayed_tcp_ack(LockRefPtr<TCPSocket> socket)
void send_delayed_tcp_ack(TCPSocket& socket)
{
VERIFY(socket->mutex().is_locked());
if (!socket->should_delay_next_ack()) {
[[maybe_unused]] auto result = socket->send_ack();
VERIFY(socket.mutex().is_locked());
if (!socket.should_delay_next_ack()) {
[[maybe_unused]] auto result = socket.send_ack();
return;
}
@ -315,11 +315,11 @@ void send_delayed_tcp_ack(LockRefPtr<TCPSocket> socket)
void flush_delayed_tcp_acks()
{
Vector<LockRefPtr<TCPSocket>, 32> remaining_sockets;
Vector<NonnullRefPtr<TCPSocket>, 32> remaining_sockets;
for (auto& socket : *delayed_ack_sockets) {
MutexLocker locker(socket->mutex());
if (socket->should_delay_next_ack()) {
MUST(remaining_sockets.try_append(socket));
MUST(remaining_sockets.try_append(*socket));
continue;
}
[[maybe_unused]] auto result = socket->send_ack();
@ -484,7 +484,7 @@ void handle_tcp(IPv4Packet const& ipv4_packet, Time const& packet_timestamp)
return;
case TCPFlags::ACK | TCPFlags::FIN:
socket->set_ack_number(tcp_packet.sequence_number() + payload_size + 1);
send_delayed_tcp_ack(socket);
send_delayed_tcp_ack(*socket);
socket->set_state(TCPSocket::State::Closed);
socket->set_error(TCPSocket::Error::FINDuringConnect);
socket->set_setup_state(Socket::SetupState::Completed);
@ -636,7 +636,7 @@ void handle_tcp(IPv4Packet const& ipv4_packet, Time const& packet_timestamp)
socket->did_receive(ipv4_packet.source(), tcp_packet.source_port(), { &ipv4_packet, sizeof(IPv4Packet) + ipv4_packet.payload_size() }, packet_timestamp);
socket->set_ack_number(tcp_packet.sequence_number() + payload_size + 1);
send_delayed_tcp_ack(socket);
send_delayed_tcp_ack(*socket);
socket->set_state(TCPSocket::State::CloseWait);
socket->set_connected(false);
return;
@ -647,7 +647,7 @@ void handle_tcp(IPv4Packet const& ipv4_packet, Time const& packet_timestamp)
socket->set_ack_number(tcp_packet.sequence_number() + payload_size);
dbgln_if(TCP_DEBUG, "Got packet with ack_no={}, seq_no={}, payload_size={}, acking it with new ack_no={}, seq_no={}",
tcp_packet.ack_number(), tcp_packet.sequence_number(), payload_size, socket->ack_number(), socket->sequence_number());
send_delayed_tcp_ack(socket);
send_delayed_tcp_ack(*socket);
}
}
}
@ -657,7 +657,7 @@ void retransmit_tcp_packets()
{
// We must keep the sockets alive until after we've unlocked the hash table
// in case retransmit_packets() realizes that it wants to close the socket.
Vector<NonnullLockRefPtr<TCPSocket>, 16> sockets;
Vector<NonnullRefPtr<TCPSocket>, 16> sockets;
TCPSocket::sockets_for_retransmit().for_each_shared([&](auto const& socket) {
// We ignore allocation failures above the first 16 guaranteed socket slots, as
// we will just retransmit their packets the next time around

6
Kernel/Net/Socket.cpp
View File

@ -17,7 +17,7 @@
namespace Kernel {
ErrorOr<NonnullLockRefPtr<Socket>> Socket::create(int domain, int type, int protocol)
ErrorOr<NonnullRefPtr<Socket>> Socket::create(int domain, int type, int protocol)
{
switch (domain) {
case AF_LOCAL:
@ -46,7 +46,7 @@ void Socket::set_setup_state(SetupState new_setup_state)
evaluate_block_conditions();
}
LockRefPtr<Socket> Socket::accept()
RefPtr<Socket> Socket::accept()
{
MutexLocker locker(mutex());
if (m_pending.is_empty())
@ -63,7 +63,7 @@ LockRefPtr<Socket> Socket::accept()
return client;
}
ErrorOr<void> Socket::queue_connection_from(NonnullLockRefPtr<Socket> peer)
ErrorOr<void> Socket::queue_connection_from(NonnullRefPtr<Socket> peer)
{
dbgln_if(SOCKET_DEBUG, "Socket({}) queueing connection", this);
MutexLocker locker(mutex());

8
Kernel/Net/Socket.h
View File

@ -20,7 +20,7 @@ class OpenFileDescription;
class Socket : public File {
public:
static ErrorOr<NonnullLockRefPtr<Socket>> create(int domain, int type, int protocol);
static ErrorOr<NonnullRefPtr<Socket>> create(int domain, int type, int protocol);
virtual ~Socket() override;
int domain() const { return m_domain; }
@ -67,7 +67,7 @@ public:
void set_connected(bool);
bool can_accept() const { return !m_pending.is_empty(); }
LockRefPtr<Socket> accept();
RefPtr<Socket> accept();
ErrorOr<void> shutdown(int how);
@ -111,7 +111,7 @@ public:
protected:
Socket(int domain, int type, int protocol);
ErrorOr<void> queue_connection_from(NonnullLockRefPtr<Socket>);
ErrorOr<void> queue_connection_from(NonnullRefPtr<Socket>);
size_t backlog() const { return m_backlog; }
void set_backlog(size_t backlog) { m_backlog = backlog; }
@ -181,7 +181,7 @@ private:
Optional<ErrnoCode> m_so_error;
Vector<NonnullLockRefPtr<Socket>> m_pending;
Vector<NonnullRefPtr<Socket>> m_pending;
};
// This is a special variant of TRY() that also updates the socket's SO_ERROR field on error.

18
Kernel/Net/TCPSocket.cpp
View File

@ -88,9 +88,9 @@ void TCPSocket::set_state(State new_state)
evaluate_block_conditions();
}
static Singleton<MutexProtected<HashMap<IPv4SocketTuple, LockRefPtr<TCPSocket>>>> s_socket_closing;
static Singleton<MutexProtected<HashMap<IPv4SocketTuple, RefPtr<TCPSocket>>>> s_socket_closing;
MutexProtected<HashMap<IPv4SocketTuple, LockRefPtr<TCPSocket>>>& TCPSocket::closing_sockets()
MutexProtected<HashMap<IPv4SocketTuple, RefPtr<TCPSocket>>>& TCPSocket::closing_sockets()
{
return *s_socket_closing;
}
@ -102,9 +102,9 @@ MutexProtected<HashMap<IPv4SocketTuple, TCPSocket*>>& TCPSocket::sockets_by_tupl
return *s_socket_tuples;
}
LockRefPtr<TCPSocket> TCPSocket::from_tuple(IPv4SocketTuple const& tuple)
RefPtr<TCPSocket> TCPSocket::from_tuple(IPv4SocketTuple const& tuple)
{
return sockets_by_tuple().with_shared([&](auto const& table) -> LockRefPtr<TCPSocket> {
return sockets_by_tuple().with_shared([&](auto const& table) -> RefPtr<TCPSocket> {
auto exact_match = table.get(tuple);
if (exact_match.has_value())
return { *exact_match.value() };
@ -122,10 +122,10 @@ LockRefPtr<TCPSocket> TCPSocket::from_tuple(IPv4SocketTuple const& tuple)
return {};
});
}
ErrorOr<NonnullLockRefPtr<TCPSocket>> TCPSocket::try_create_client(IPv4Address const& new_local_address, u16 new_local_port, IPv4Address const& new_peer_address, u16 new_peer_port)
ErrorOr<NonnullRefPtr<TCPSocket>> TCPSocket::try_create_client(IPv4Address const& new_local_address, u16 new_local_port, IPv4Address const& 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) -> ErrorOr<NonnullLockRefPtr<TCPSocket>> {
return sockets_by_tuple().with_exclusive([&](auto& table) -> ErrorOr<NonnullRefPtr<TCPSocket>> {
if (table.contains(tuple))
return EEXIST;
@ -154,7 +154,7 @@ void TCPSocket::release_to_originator()
m_originator.clear();
}
void TCPSocket::release_for_accept(NonnullLockRefPtr<TCPSocket> socket)
void TCPSocket::release_for_accept(NonnullRefPtr<TCPSocket> socket)
{
VERIFY(m_pending_release_for_accept.contains(socket->tuple()));
m_pending_release_for_accept.remove(socket->tuple());
@ -175,11 +175,11 @@ TCPSocket::~TCPSocket()
dbgln_if(TCP_SOCKET_DEBUG, "~TCPSocket in state {}", to_string(state()));
}
ErrorOr<NonnullLockRefPtr<TCPSocket>> TCPSocket::try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer)
ErrorOr<NonnullRefPtr<TCPSocket>> TCPSocket::try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer)
{
// Note: Scratch buffer is only used for SOCK_STREAM sockets.
auto scratch_buffer = TRY(KBuffer::try_create_with_size("TCPSocket: Scratch buffer"sv, 65536));
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) TCPSocket(protocol, move(receive_buffer), move(scratch_buffer)));
return adopt_nonnull_ref_or_enomem(new (nothrow) TCPSocket(protocol, move(receive_buffer), move(scratch_buffer)));
}
ErrorOr<size_t> TCPSocket::protocol_size(ReadonlyBytes raw_ipv4_packet)

12
Kernel/Net/TCPSocket.h
View File

@ -20,7 +20,7 @@ class TCPSocket final : public IPv4Socket {
public:
static void for_each(Function<void(TCPSocket const&)>);
static ErrorOr<void> try_for_each(Function<ErrorOr<void>(TCPSocket const&)>);
static ErrorOr<NonnullLockRefPtr<TCPSocket>> try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer);
static ErrorOr<NonnullRefPtr<TCPSocket>> try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer);
virtual ~TCPSocket() override;
virtual bool unref() const override;
@ -146,15 +146,15 @@ public:
bool should_delay_next_ack() const;
static MutexProtected<HashMap<IPv4SocketTuple, TCPSocket*>>& sockets_by_tuple();
static LockRefPtr<TCPSocket> from_tuple(IPv4SocketTuple const& tuple);
static RefPtr<TCPSocket> from_tuple(IPv4SocketTuple const& tuple);
static MutexProtected<HashMap<IPv4SocketTuple, LockRefPtr<TCPSocket>>>& closing_sockets();
static MutexProtected<HashMap<IPv4SocketTuple, RefPtr<TCPSocket>>>& closing_sockets();
ErrorOr<NonnullLockRefPtr<TCPSocket>> try_create_client(IPv4Address const& local_address, u16 local_port, IPv4Address const& peer_address, u16 peer_port);
ErrorOr<NonnullRefPtr<TCPSocket>> try_create_client(IPv4Address const& local_address, u16 local_port, IPv4Address const& peer_address, u16 peer_port);
void set_originator(TCPSocket& originator) { m_originator = originator; }
bool has_originator() { return !!m_originator; }
void release_to_originator();
void release_for_accept(NonnullLockRefPtr<TCPSocket>);
void release_for_accept(NonnullRefPtr<TCPSocket>);
void retransmit_packets();
@ -186,7 +186,7 @@ private:
void dequeue_for_retransmit();
LockWeakPtr<TCPSocket> m_originator;
HashMap<IPv4SocketTuple, NonnullLockRefPtr<TCPSocket>> m_pending_release_for_accept;
HashMap<IPv4SocketTuple, NonnullRefPtr<TCPSocket>> m_pending_release_for_accept;
Direction m_direction { Direction::Unspecified };
Error m_error { Error::None };
LockRefPtr<NetworkAdapter> m_adapter;

8
Kernel/Net/UDPSocket.cpp
View File

@ -38,9 +38,9 @@ MutexProtected<HashMap<u16, UDPSocket*>>& UDPSocket::sockets_by_port()
return *s_map;
}
LockRefPtr<UDPSocket> UDPSocket::from_port(u16 port)
RefPtr<UDPSocket> UDPSocket::from_port(u16 port)
{
return sockets_by_port().with_shared([&](auto const& table) -> LockRefPtr<UDPSocket> {
return sockets_by_port().with_shared([&](auto const& table) -> RefPtr<UDPSocket> {
auto it = table.find(port);
if (it == table.end())
return {};
@ -60,9 +60,9 @@ UDPSocket::~UDPSocket()
});
}
ErrorOr<NonnullLockRefPtr<UDPSocket>> UDPSocket::try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer)
ErrorOr<NonnullRefPtr<UDPSocket>> UDPSocket::try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer)
{
return adopt_nonnull_lock_ref_or_enomem(new (nothrow) UDPSocket(protocol, move(receive_buffer)));
return adopt_nonnull_ref_or_enomem(new (nothrow) UDPSocket(protocol, move(receive_buffer)));
}
ErrorOr<size_t> UDPSocket::protocol_size(ReadonlyBytes raw_ipv4_packet)

4
Kernel/Net/UDPSocket.h
View File

@ -14,10 +14,10 @@ namespace Kernel {
class UDPSocket final : public IPv4Socket {
public:
static ErrorOr<NonnullLockRefPtr<UDPSocket>> try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer);
static ErrorOr<NonnullRefPtr<UDPSocket>> try_create(int protocol, NonnullOwnPtr<DoubleBuffer> receive_buffer);
virtual ~UDPSocket() override;
static LockRefPtr<UDPSocket> from_port(u16);
static RefPtr<UDPSocket> from_port(u16);
static void for_each(Function<void(UDPSocket const&)>);
static ErrorOr<void> try_for_each(Function<ErrorOr<void>(UDPSocket const&)>);