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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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12
Kernel/Net/IPv4Socket.h
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@ -58,8 +58,8 @@ public:
virtual void detach(FileDescription&) override;
virtual bool can_read(const FileDescription&, size_t) const override;
virtual bool can_write(const FileDescription&, size_t) const override;
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;
virtual KResultOr<size_t> sendto(FileDescription&, const void*, size_t, int, const sockaddr*, socklen_t) override;
virtual KResultOr<size_t> recvfrom(FileDescription&, void*, size_t, int flags, sockaddr*, socklen_t*) override;
virtual KResult setsockopt(int level, int option, const void*, socklen_t) override;
virtual KResult getsockopt(FileDescription&, int level, int option, void*, socklen_t*) override;
@ -96,8 +96,8 @@ protected:
virtual KResult protocol_bind() { return KSuccess; }
virtual KResult protocol_listen() { return KSuccess; }
virtual int protocol_receive(const KBuffer&, void*, size_t, int) { return -ENOTIMPL; }
virtual int protocol_send(const void*, size_t) { return -ENOTIMPL; }
virtual KResultOr<size_t> protocol_receive(const KBuffer&, void*, size_t, int) { return -ENOTIMPL; }
virtual KResultOr<size_t> protocol_send(const void*, size_t) { return -ENOTIMPL; }
virtual KResult protocol_connect(FileDescription&, ShouldBlock) { return KSuccess; }
virtual int protocol_allocate_local_port() { return 0; }
virtual bool protocol_is_disconnected() const { return false; }
@ -110,8 +110,8 @@ protected:
private:
virtual bool is_ipv4() const override { return true; }
ssize_t receive_byte_buffered(FileDescription&, void* buffer, size_t buffer_length, int flags, sockaddr*, socklen_t*);
ssize_t receive_packet_buffered(FileDescription&, void* buffer, size_t buffer_length, int flags, sockaddr*, socklen_t*);
KResultOr<size_t> receive_byte_buffered(FileDescription&, void* buffer, size_t buffer_length, int flags, sockaddr*, socklen_t*);
KResultOr<size_t> receive_packet_buffered(FileDescription&, void* buffer, size_t buffer_length, int flags, sockaddr*, socklen_t*);
IPv4Address m_local_address;
IPv4Address m_peer_address;