1 /* 2 * Copyright (C) 2011 The Android Open Source Project 3 * 4 * Licensed under the Apache License, Version 2.0 (the "License"); 5 * you may not use this file except in compliance with the License. 6 * You may obtain a copy of the License at 7 * 8 * http://www.apache.org/licenses/LICENSE-2.0 9 * 10 * Unless required by applicable law or agreed to in writing, software 11 * distributed under the License is distributed on an "AS IS" BASIS, 12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 13 * See the License for the specific language governing permissions and 14 * limitations under the License. 15 */ 16 #ifndef __VAR__H__ 17 #define __VAR__H__ 18 19 #include "VarType.h" 20 #include <string> 21 #include <stdio.h> 22 23 class Var { 24 public: 25 // pointer data direction - from the client point of view. 26 typedef enum { POINTER_OUT = 0x1, POINTER_IN = 0x2, POINTER_INOUT = 0x3 } PointerDir; 27 Var() = default; 28 29 Var(const std::string & name, 30 const VarType * vartype, 31 const std::string & lenExpression, 32 PointerDir dir, 33 const std::string &packExpression, 34 const std::string &unpackExpression, 35 const std::string &writeExpression) : 36 m_name(name), 37 m_type(const_cast<VarType *>(vartype)), 38 m_lenExpression(lenExpression), 39 m_pointerDir(dir), 40 m_packExpression(packExpression), 41 m_unpackExpression(unpackExpression), 42 m_host_packTmpAllocExpression(""), 43 m_host_packExpression(""), 44 m_guest_unpackExpression(""), 45 m_writeExpression(writeExpression) 46 { 47 } 48 49 void init(const std::string name, const VarType * vartype, 50 std::string lenExpression, 51 PointerDir dir, 52 std::string packExpression, 53 std::string unpackExpression, 54 std::string writeExpression) { 55 m_name = name; 56 m_type = vartype; 57 m_lenExpression = lenExpression; 58 m_packExpression = packExpression; 59 m_unpackExpression = unpackExpression; 60 m_host_packTmpAllocExpression = ""; 61 m_host_packExpression = ""; 62 m_guest_unpackExpression = ""; 63 m_writeExpression = writeExpression; 64 m_pointerDir = dir; 65 m_nullAllowed = false; 66 m_isLarge = false; 67 68 } 69 70 const std::string & name() const { return m_name; } 71 const VarType * type() const { return m_type; } 72 bool isPointer() const { return m_type->isPointer(); } 73 bool isVoid() const { return ((m_type->bytes() == 0) && (!m_type->isPointer())); } 74 const std::string & lenExpression() const { return m_lenExpression; } 75 const std::string & packExpression() const { return(m_packExpression); } 76 const std::string & unpackExpression() const { return(m_unpackExpression); } 77 const std::string & hostPackTmpAllocExpression() const { return(m_host_packTmpAllocExpression); } 78 const std::string & hostPackExpression() const { return(m_host_packExpression); } 79 const std::string & guestUnpackExpression() const { return(m_guest_unpackExpression); } 80 const std::string & writeExpression() const { return(m_writeExpression); } 81 const std::string & paramCheckExpression() const { return m_paramCheckExpression; } 82 void setLenExpression(const std::string & lenExpression) { m_lenExpression = lenExpression; } 83 void setPackExpression(const std::string & packExpression) { m_packExpression = packExpression; } 84 void setUnpackExpression(const std::string & unpackExpression) { m_unpackExpression = unpackExpression; } 85 void setHostPackTmpAllocExpression(const std::string & expr) { m_host_packTmpAllocExpression = expr; } 86 void setHostPackExpression(const std::string & expr) { m_host_packExpression = expr; } 87 void setGuestUnpackExpression(const std::string & expr) { m_guest_unpackExpression = expr; } 88 void setWriteExpression(const std::string & writeExpression) { m_writeExpression = writeExpression; } 89 void setParamCheckExpression(const std::string & paramCheckExpression) { m_paramCheckExpression = paramCheckExpression; } 90 void setPointerDir(PointerDir dir) { m_pointerDir = dir; } 91 PointerDir pointerDir() { return m_pointerDir; } 92 void setNullAllowed(bool state) { m_nullAllowed = state; } 93 void setIsLarge(bool state) { m_isLarge = state; } 94 void setDMA(bool state) { m_isDMA = state; } 95 bool nullAllowed() const { return m_nullAllowed; } 96 bool isLarge() const { return m_isLarge; } 97 bool isDMA() const { return m_isDMA; } 98 void printType(FILE *fp) { fprintf(fp, "%s", m_type->name().c_str()); } 99 void printTypeName(FILE *fp) { printType(fp); fprintf(fp, " %s", m_name.c_str()); } 100 101 private: 102 std::string m_name; 103 const VarType * m_type = nullptr; 104 std::string m_lenExpression; // an expression to calcualte a pointer data size 105 PointerDir m_pointerDir = POINTER_IN; 106 bool m_nullAllowed = false; 107 bool m_isLarge = false; 108 bool m_isDMA = false; 109 std::string m_packExpression; // an expression to pack data into the stream 110 std::string m_unpackExpression; // an expression to unpack data that has arrived from the stream 111 std::string m_host_packTmpAllocExpression; // an expression to create temporaries for getting into packed form for readbacks 112 std::string m_host_packExpression; // an expression to pack data into the stream but for readbacks 113 std::string m_guest_unpackExpression; // an expression to unpack readbacks on the guest 114 std::string m_writeExpression; // an expression to write data into the stream 115 std::string m_paramCheckExpression; //an expression to check parameter value 116 }; 117 118 #endif 119
