process.hh revision 12953:ddfd5e4643a9
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" 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 45class Process : public ::sc_core::sc_object, public ListNode 46{ 47 public: 48 virtual ::sc_core::sc_curr_proc_kind procKind() const = 0; 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 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: 92 Process(const char *name, ProcessFuncWrapper *func, bool _dynamic); 93 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; 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; 114 115 size_t stackSize; 116}; 117 118} // namespace sc_gem5 119 120#endif //__SYSTEMC_CORE_PROCESS_HH__ 121