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https://github.com/versity/versitygw.git
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Jihyeon Gim
efa0309da4
Port the hipObject v2 reliable-connection session core into cuwrapper/rc: the session table and state machine, the wire codec for the hipobj-rc-v2 headers, request parsing, the injectable clock and randomness sources, the transport layer (QP/CQ lifecycle, RTR/RTS transitions, staging registration), the data phase (RDMA write with immediate for GET, receive with immediate for PUT), the RDMA token codec, and the dynamically loaded ibverbs shim (ibv-core.h plus the dlopen host binding). The sources are a port of the upstream hipObject v2 core, kept close to the original so the two trees can be diffed during review. Nothing links against them yet; a Makefile rule builds the objects into rdma/librcserver.a for the ABI layer that follows. Signed-off-by: Jihyeon Gim <potatogim@potatogim.net>
47 lines
1.4 KiB
C++
47 lines
1.4 KiB
C++
/* Copyright (c) Advanced Micro Devices, Inc. All rights reserved.
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* Copyright (c) Gluesys Inc. and Jihyeon Gim. All rights reserved.
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*
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* SPDX-License-Identifier: MIT
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*/
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/* Injectable randomness for v2 policies (client PSNs, completion
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* cookies). Production draws from getrandom(2); unit tests install
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* a deterministic source. */
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#pragma once
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#include <cstdint>
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namespace hipObj {
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namespace v2 {
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class RandomSource {
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public:
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virtual ~RandomSource() = default;
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/* Draws 32 random bits. Returns false only when the underlying
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* entropy source failed; callers treat that as an internal error
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* rather than falling back to a constant. */
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virtual bool next32(uint32_t& out) = 0;
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};
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/* Returns the active source (production default unless a test
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* override is installed). */
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RandomSource& randomSource();
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/* Installs a test source and returns the previously active one
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* (nullptr when the production default was active). Passing
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* nullptr restores the default. Unit tests only. */
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RandomSource* setRandomSourceForTest(RandomSource* source);
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/* Draws a 24-bit non-zero PSN. Retries up to twice when the draw
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* masks to zero; returns false when the source failed or every
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* draw was zero. */
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bool nextClientPsn(uint32_t& psn);
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/* Draws a full 32-bit completion cookie (0 is a valid cookie). */
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bool nextCookie(uint32_t& cookie);
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} // namespace v2
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} // namespace hipObj
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