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Kernel: Make sys$recvfrom() with MSG_DONTWAIT not so racy
Instead of temporary changing the open file description's "blocking" flag while doing a non-waiting recvfrom, we instead plumb the currently wanted blocking behavior all the way through to the underlying socket.
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7 changed files with 17 additions and 22 deletions
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@ -46,7 +46,7 @@ public:
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virtual bool can_read(OpenFileDescription const&, u64) const override;
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virtual bool can_write(OpenFileDescription const&, u64) const override;
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virtual ErrorOr<size_t> sendto(OpenFileDescription&, UserOrKernelBuffer const&, size_t, int, Userspace<sockaddr const*>, socklen_t) override;
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virtual ErrorOr<size_t> recvfrom(OpenFileDescription&, UserOrKernelBuffer&, size_t, int flags, Userspace<sockaddr*>, Userspace<socklen_t*>, Time&) override;
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virtual ErrorOr<size_t> recvfrom(OpenFileDescription&, UserOrKernelBuffer&, size_t, int flags, Userspace<sockaddr*>, Userspace<socklen_t*>, Time&, bool blocking) override;
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virtual ErrorOr<void> getsockopt(OpenFileDescription&, int level, int option, Userspace<void*>, Userspace<socklen_t*>) override;
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virtual ErrorOr<void> ioctl(OpenFileDescription&, unsigned request, Userspace<void*> arg) override;
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virtual ErrorOr<void> chown(Credentials const&, OpenFileDescription&, UserID, GroupID) override;
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