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

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.

1 files changed, 6 insertions, 6 deletions

diff --git a/Kernel/Net/IPv4Socket.h b/Kernel/Net/IPv4Socket.h
index 7ed9e814d4..392958311f 100644
--- a/Kernel/Net/IPv4Socket.h
+++ b/Kernel/Net/IPv4Socket.h
@@ -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;