1/* 2 * Copyright 2018 Google, Inc. 3 * 4 * Redistribution and use in source and binary forms, with or without 5 * modification, are permitted provided that the following conditions are 6 * met: redistributions of source code must retain the above copyright 7 * notice, this list of conditions and the following disclaimer; 8 * redistributions in binary form must reproduce the above copyright 9 * notice, this list of conditions and the following disclaimer in the 10 * documentation and/or other materials provided with the distribution; 11 * neither the name of the copyright holders nor the names of its 12 * contributors may be used to endorse or promote products derived from 13 * this software without specific prior written permission. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 16 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 17 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 18 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 19 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 20 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 21 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 22 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 23 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 25 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 26 * 27 * Authors: Gabe Black 28 */ 29 30#ifndef __SYSTEMC_CORE_PROCESS_HH__ 31#define __SYSTEMC_CORE_PROCESS_HH__ 32 33#include <functional> 34 35#include "base/fiber.hh"
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36#include "systemc/core/list.hh" |
37#include "systemc/core/object.hh" 38#include "systemc/ext/core/sc_event.hh" 39#include "systemc/ext/core/sc_module.hh" 40#include "systemc/ext/core/sc_process_handle.hh" 41 42namespace sc_gem5 43{ 44
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44class Process : public ::sc_core::sc_object
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45class Process : public ::sc_core::sc_object, public ListNode |
46{ 47 public: 48 virtual ::sc_core::sc_curr_proc_kind procKind() const = 0;
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49 bool running() const { return _running; } |
50 bool dynamic() const { return _dynamic; } 51 bool isUnwinding() const { return _isUnwinding; } 52 bool terminated() const { return _terminated; } 53 54 void forEachKid(const std::function<void(Process *)> &work); 55 56 bool suspended() const { return _suspended; } 57 bool disabled() const { return _disabled; } 58 59 void suspend(bool inc_kids); 60 void resume(bool inc_kids); 61 void disable(bool inc_kids); 62 void enable(bool inc_kids); 63 64 void kill(bool inc_kids); 65 void reset(bool inc_kids); 66 virtual void throw_it(ExceptionWrapperBase &exc, bool inc_kids); 67 68 void injectException(ExceptionWrapperBase &exc); 69 ExceptionWrapperBase *excWrapper; 70 71 void syncResetOn(bool inc_kids); 72 void syncResetOff(bool inc_kids); 73 74 void incref() { refCount++; } 75 void decref() { refCount--; } 76 77 const ::sc_core::sc_event &resetEvent() { return _resetEvent; } 78 const ::sc_core::sc_event &terminatedEvent() { return _terminatedEvent; } 79
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80 // This should only be called before initialization. 81 void dontInitialize() { popListNode(); } 82 83 void setStackSize(size_t size) { stackSize = size; } 84 85 void run(); 86 87 virtual Fiber *fiber() { return Fiber::primaryFiber(); } 88 89 static Process *newest() { return _newest; } 90 |
91 protected:
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79 Process(const char *name, ProcessFuncWrapper *func, bool _dynamic) :
80 ::sc_core::sc_object(name), func(func), _dynamic(_dynamic),
81 _isUnwinding(false), _terminated(false), _suspended(false),
82 _disabled(false), _syncReset(false), refCount(0)
83 {}
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92 Process(const char *name, ProcessFuncWrapper *func, bool _dynamic); |
93
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94 static Process *_newest; 95 |
96 virtual ~Process() { delete func; } 97 98 ::sc_core::sc_event _resetEvent; 99 ::sc_core::sc_event _terminatedEvent; 100 101 ProcessFuncWrapper *func; 102 sc_core::sc_curr_proc_kind _procKind;
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103 bool _running; |
104 bool _dynamic; 105 bool _isUnwinding; 106 bool _terminated; 107 108 bool _suspended; 109 bool _disabled; 110 111 bool _syncReset; 112 113 int refCount;
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102};
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114
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104class Method : public Process
105{
106 public:
107 Method(const char *name, ProcessFuncWrapper *func, bool _dynamic=false) :
108 Process(name, func, _dynamic)
109 {}
110
111 const char *kind() const override { return "sc_method_process"; }
112
113 sc_core::sc_curr_proc_kind
114 procKind() const override
115 {
116 return sc_core::SC_METHOD_PROC_;
117 }
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115 size_t stackSize; |
116}; 117
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120class Thread : public Process
121{
122 public:
123 Thread(const char *name, ProcessFuncWrapper *func, bool _dynamic=false) :
124 Process(name, func, _dynamic)
125 {}
126
127 const char *kind() const override { return "sc_thread_process"; }
128
129 void throw_it(ExceptionWrapperBase &exc, bool inc_kids) override;
130
131 sc_core::sc_curr_proc_kind
132 procKind() const override
133 {
134 return sc_core::SC_THREAD_PROC_;
135 }
136};
137
138class CThread : public Thread
139{
140 public:
141 CThread(const char *name, ProcessFuncWrapper *func, bool _dynamic=false) :
142 Thread(name, func, _dynamic)
143 {}
144
145 const char *kind() const override { return "sc_cthread_process"; }
146
147 sc_core::sc_curr_proc_kind
148 procKind() const override
149 {
150 return sc_core::SC_CTHREAD_PROC_;
151 }
152};
153
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118} // namespace sc_gem5 119 120#endif //__SYSTEMC_CORE_PROCESS_HH__
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