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Kernel: Make KBuffer a value-type wrapper around a KBufferImpl

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A KBuffer always contains a valid KBufferImpl. If you need a "null"
state buffer, use Optional<KBuffer>.

This makes KBuffer very easy to work with and pass around, just like
ByteBuffer before it.
This commit is contained in:
Andreas Kling 2019-08-05 11:06:21 +02:00
parent 52cfe9ebae
commit 605975adb5
6 changed files with 50 additions and 22 deletions
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4
Kernel/Net/IPv4Socket.h
View file

@ -32,7 +32,7 @@ public:
virtual ssize_t sendto(FileDescription&, const void*, size_t, int, const sockaddr*, socklen_t) override;
virtual ssize_t recvfrom(FileDescription&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
void did_receive(const IPv4Address& peer_address, u16 peer_port, NonnullRefPtr<KBuffer>&&);
void did_receive(const IPv4Address& peer_address, u16 peer_port, KBuffer&&);
const IPv4Address& local_address() const;
u16 local_port() const { return m_local_port; }
@ -64,7 +64,7 @@ private:
struct ReceivedPacket {
IPv4Address peer_address;
u16 peer_port;
RefPtr<KBuffer> data;
Optional<KBuffer> data;
};
SinglyLinkedList<ReceivedPacket> m_receive_queue;