f9cf3de711
Use a HostSocket parameter to accept connections, rather than a hand implementation for unix domain sockets. This consolidates this code with the code derived from it in ListenSocket, and also makes it possible to connect to the SharedMemoryServer over an AF_INET socket. Change-Id: I8e05434d08cffaebdf6c68a967e2ee7613c10a76 Reviewed-on: https://gem5-review.googlesource.com/c/public/gem5/+/69168 Maintainer: Gabe Black <gabeblack@google.com> Tested-by: kokoro <noreply+kokoro@google.com> Reviewed-by: Jui-min Lee <fcrh@google.com>
99 lines
3.0 KiB
C++
99 lines
3.0 KiB
C++
/*
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* Copyright 2022 Google, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are
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* met: redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer;
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* redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution;
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* neither the name of the copyright holders nor the names of its
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* contributors may be used to endorse or promote products derived from
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* this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __MEM_SHARED_MEMORY_SERVER_HH__
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#define __MEM_SHARED_MEMORY_SERVER_HH__
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#include <memory>
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#include <string>
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#include <unordered_map>
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#include "base/pollevent.hh"
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#include "base/socket.hh"
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#include "params/SharedMemoryServer.hh"
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#include "sim/sim_object.hh"
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#include "sim/system.hh"
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namespace gem5
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{
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namespace memory
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{
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class SharedMemoryServer : public SimObject
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{
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public:
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enum class RequestType : int
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{
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kGetPhysRange = 0,
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};
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explicit SharedMemoryServer(const SharedMemoryServerParams& params);
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~SharedMemoryServer();
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private:
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class BaseShmPollEvent : public PollEvent
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{
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public:
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BaseShmPollEvent(int fd, SharedMemoryServer* shm_server);
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const std::string& name() const;
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protected:
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bool tryReadAll(void* buffer, size_t size);
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SharedMemoryServer* shmServer;
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std::string eventName;
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};
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class ListenSocketEvent : public BaseShmPollEvent
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{
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public:
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using BaseShmPollEvent::BaseShmPollEvent;
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void process(int revent) override;
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};
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class ClientSocketEvent : public BaseShmPollEvent
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{
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public:
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using BaseShmPollEvent::BaseShmPollEvent;
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void process(int revent) override;
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};
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System* system;
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ListenSocketPtr listener;
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std::unique_ptr<ListenSocketEvent> listenSocketEvent;
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std::unordered_map<int, std::unique_ptr<ClientSocketEvent>>
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clientSocketEvents;
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};
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} // namespace memory
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} // namespace gem5
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#endif // __MEM_SHARED_MEMORY_SERVER_HH__
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