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Kernel: Make DoubleBuffer::try() return KResultOr

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This tidies up error propagation in a number of places.
This commit is contained in:
Andreas Kling 2021-09-07 13:46:11 +02:00
parent 213b8868af
commit 01993d0af3
8 changed files with 23 additions and 32 deletions
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12
Kernel/Net/IPv4Socket.cpp
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@ -35,23 +35,21 @@ MutexProtected<IPv4Socket::List>& IPv4Socket::all_sockets()
return *s_all_sockets;
}
OwnPtr<DoubleBuffer> IPv4Socket::create_receive_buffer()
KResultOr<NonnullOwnPtr<DoubleBuffer>> IPv4Socket::try_create_receive_buffer()
{
return DoubleBuffer::try_create(256 * KiB);
}
KResultOr<NonnullRefPtr<Socket>> IPv4Socket::create(int type, int protocol)
{
auto receive_buffer = IPv4Socket::create_receive_buffer();
if (!receive_buffer)
return ENOMEM;
auto receive_buffer = TRY(IPv4Socket::try_create_receive_buffer());
if (type == SOCK_STREAM)
return TRY(TCPSocket::try_create(protocol, receive_buffer.release_nonnull()));
return TRY(TCPSocket::try_create(protocol, move(receive_buffer)));
if (type == SOCK_DGRAM)
return TRY(UDPSocket::try_create(protocol, receive_buffer.release_nonnull()));
return TRY(UDPSocket::try_create(protocol, move(receive_buffer)));
if (type == SOCK_RAW) {
auto raw_socket = adopt_ref_if_nonnull(new (nothrow) IPv4Socket(type, protocol, receive_buffer.release_nonnull(), {}));
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;