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https://github.com/matrix-construct/construct
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42 lines
1.6 KiB
C
42 lines
1.6 KiB
C
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// The Construct
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//
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// Copyright (C) The Construct Developers, Authors & Contributors
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// Copyright (C) 2016-2020 Jason Volk <jason@zemos.net>
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//
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// Permission to use, copy, modify, and/or distribute this software for any
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// purpose with or without fee is hereby granted, provided that the above
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// copyright notice and this permission notice is present in all copies. The
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// full license for this software is available in the LICENSE file.
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#pragma once
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#define HAVE_IRCD_M_VM_FAULT_H
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namespace ircd::m::vm
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{
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enum fault :uint;
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using fault_t = std::underlying_type<fault>::type;
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string_view reflect(const fault &);
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http::code http_code(const fault &);
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}
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/// Evaluation faults. These are reasons which evaluation has halted but may
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/// continue after the user defaults the fault. They are basically types of
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/// interrupts and traps, which are supposed to be recoverable. Only the
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/// GENERAL protection fault (#gp) is an abort and is not supposed to be
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/// recoverable. The fault codes have the form of bitflags so they can be
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/// used in masks; outside of that case only one fault is dealt with at
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/// a time so they can be switched as they appear in the enum.
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///
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enum ircd::m::vm::fault
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:uint
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{
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ACCEPT = 0x00, ///< No fault.
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EXISTS = 0x01, ///< Replaying existing event. (#ex)
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GENERAL = 0x02, ///< General protection fault. (#gp)
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INVALID = 0x04, ///< Non-conforming event format. (#ud)
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AUTH = 0x08, ///< Auth rules violation. (#av)
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STATE = 0x10, ///< Required state is missing (#st)
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EVENT = 0x20, ///< Eval requires addl events in the ef register (#ef)
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};
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