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Kernel: Make File::write() and File::read() return KResultOr<size_t>

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Instead of returning a ssize_t where negative values mean error,
we now return KResultOr<size_t> and use the error state to report
errors exclusively.
This commit is contained in:
Andreas Kling 2020-08-04 18:02:23 +02:00
parent 58feebeed2
commit 7a3ab6c517
58 changed files with 223 additions and 229 deletions
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4
Kernel/Net/TCPSocket.cpp
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@ -161,7 +161,7 @@ NonnullRefPtr<TCPSocket> TCPSocket::create(int protocol)
return adopt(*new TCPSocket(protocol));
}
int TCPSocket::protocol_receive(const KBuffer& packet_buffer, void* buffer, size_t buffer_size, int flags)
KResultOr<size_t> TCPSocket::protocol_receive(const KBuffer& packet_buffer, void* buffer, size_t buffer_size, int flags)
{
(void)flags;
auto& ipv4_packet = *(const IPv4Packet*)(packet_buffer.data());
@ -175,7 +175,7 @@ int TCPSocket::protocol_receive(const KBuffer& packet_buffer, void* buffer, size
return payload_size;
}
int TCPSocket::protocol_send(const void* data, size_t data_length)
KResultOr<size_t> TCPSocket::protocol_send(const void* data, size_t data_length)
{
send_tcp_packet(TCPFlags::PUSH | TCPFlags::ACK, data, data_length);
return data_length;