mirror of https://github.com/akuker/RASCSI.git
56 lines
1.2 KiB
C++
56 lines
1.2 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator RaSCSI Reloaded
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// for Raspberry Pi
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//
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// Copyright (C) 2022 Uwe Seimet
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//
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// A template for dispatching SCSI commands
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//
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//---------------------------------------------------------------------------
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#pragma once
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#include "log.h"
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#include <unordered_map>
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using namespace std;
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using namespace scsi_defs;
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template<class T>
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class Dispatcher
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{
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public:
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Dispatcher() = default;
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~Dispatcher() = default;
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using operation = void (T::*)();
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using command_t = struct _command_t {
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const char *name;
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operation execute;
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_command_t(const char *_name, operation _execute) : name(_name), execute(_execute) { };
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};
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unordered_map<scsi_command, unique_ptr<command_t>> commands;
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void Add(scsi_command opcode, const char *name, operation execute)
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{
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commands[opcode] = make_unique<command_t>(name, execute);
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}
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bool Dispatch(T *instance, scsi_command cmd) const
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{
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if (const auto& it = commands.find(cmd); it != commands.end()) {
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LOGDEBUG("%s Executing %s ($%02X)", __PRETTY_FUNCTION__, it->second->name, (int)cmd)
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(instance->*it->second->execute)();
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return true;
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}
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// Unknown command
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return false;
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}
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};
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