| Directory: | ./ |
|---|---|
| File: | pdserv/src/msrproto/Parameter.cpp |
| Date: | 2024-11-17 04:08:36 |
| Exec | Total | Coverage | |
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| Lines: | 49 | 85 | 57.6% |
| Branches: | 39 | 114 | 34.2% |
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| 1 | /***************************************************************************** | ||
| 2 | * | ||
| 3 | * $Id$ | ||
| 4 | * | ||
| 5 | * Copyright 2010 Richard Hacker (lerichi at gmx dot net) | ||
| 6 | * | ||
| 7 | * This file is part of the pdserv library. | ||
| 8 | * | ||
| 9 | * The pdserv library is free software: you can redistribute it and/or modify | ||
| 10 | * it under the terms of the GNU Lesser General Public License as published | ||
| 11 | * by the Free Software Foundation, either version 3 of the License, or (at | ||
| 12 | * your option) any later version. | ||
| 13 | * | ||
| 14 | * The pdserv library is distributed in the hope that it will be useful, but | ||
| 15 | * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY | ||
| 16 | * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public | ||
| 17 | * License for more details. | ||
| 18 | * | ||
| 19 | * You should have received a copy of the GNU Lesser General Public License | ||
| 20 | * along with the pdserv library. If not, see <http://www.gnu.org/licenses/>. | ||
| 21 | * | ||
| 22 | *****************************************************************************/ | ||
| 23 | |||
| 24 | #include "Parameter.h" | ||
| 25 | #include "XmlElement.h" | ||
| 26 | #include "Session.h" | ||
| 27 | #include "../Parameter.h" | ||
| 28 | #include "../Debug.h" | ||
| 29 | #include "../DataType.h" | ||
| 30 | |||
| 31 | #include <sstream> | ||
| 32 | #include <cerrno> | ||
| 33 | #include <stdint.h> | ||
| 34 | |||
| 35 | #define MSR_R 0x01 /* Parameter is readable */ | ||
| 36 | #define MSR_W 0x02 /* Parameter is writeable */ | ||
| 37 | #define MSR_WOP 0x04 /* Parameter is writeable in real-time */ | ||
| 38 | //#define MSR_MONOTONIC 0x8 /* List must be monotonic */ | ||
| 39 | //#define MSR_S 0x10 /* Parameter must be saved by clients */ | ||
| 40 | #define MSR_G 0x20 /* Gruppenbezeichnung (unused) */ | ||
| 41 | #define MSR_AW 0x40 /* Writeable by admin only */ | ||
| 42 | #define MSR_P 0x80 /* Persistant parameter, written to disk */ | ||
| 43 | #define MSR_DEP 0x100 /* This parameter is an exerpt of another parameter. | ||
| 44 | Writing to this parameter also causes an update | ||
| 45 | notice for the encompassing parameter */ | ||
| 46 | #define MSR_AIC 0x200 /* Asynchronous input channel */ | ||
| 47 | |||
| 48 | /* ein paar Kombinationen */ | ||
| 49 | #define MSR_RWS (MSR_R | MSR_W | MSR_S) | ||
| 50 | #define MSR_RP (MSR_R | MSR_P) | ||
| 51 | |||
| 52 | |||
| 53 | using namespace MsrProto; | ||
| 54 | |||
| 55 | ///////////////////////////////////////////////////////////////////////////// | ||
| 56 | 2464 | Parameter::Parameter(const PdServ::Parameter *p, size_t index, | |
| 57 | const PdServ::DataType& dtype, | ||
| 58 | const PdServ::DataType::DimType& dim, | ||
| 59 | 2464 | size_t offset, Parameter *parent): | |
| 60 | Variable(p, index, dtype, dim, offset), | ||
| 61 | mainParam(p), | ||
| 62 | persistent(false), | ||
| 63 | 2464 | dependent(parent) | |
| 64 | { | ||
| 65 |
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2464 | if (parent) { |
| 66 |
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1540 | parent->addChild(this); |
| 67 |
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1540 | hidden = parent->hidden; |
| 68 |
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1540 | persistent = parent->persistent; |
| 69 | } | ||
| 70 | 2464 | } | |
| 71 | |||
| 72 | ///////////////////////////////////////////////////////////////////////////// | ||
| 73 | 180 | bool Parameter::inform(Session* session, size_t begin, size_t end, | |
| 74 | const char* data, const struct timespec* time) const | ||
| 75 | { | ||
| 76 |
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180 | if (begin >= offset + memSize) |
| 77 | 35 | return false; | |
| 78 |
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145 | else if (offset >= end) |
| 79 | 11 | return true; | |
| 80 | |||
| 81 | 134 | session->parameterChanged(this, data, time); | |
| 82 | 257 | for (List::const_iterator it = children.begin(); | |
| 83 |
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257 | it != children.end(); ++it) { |
| 84 |
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134 | if ((*it)->inform(session, begin, end, data, time)) |
| 85 | 11 | break; | |
| 86 | } | ||
| 87 | |||
| 88 | 134 | return false; | |
| 89 | } | ||
| 90 | |||
| 91 | ///////////////////////////////////////////////////////////////////////////// | ||
| 92 | 1540 | void Parameter::addChild(const Parameter* child) | |
| 93 | { | ||
| 94 | 1540 | children.push_back(child); | |
| 95 | 1540 | } | |
| 96 | |||
| 97 | ///////////////////////////////////////////////////////////////////////////// | ||
| 98 | 159 | void Parameter::setXmlAttributes(XmlElement &element, const char *valueBuf, | |
| 99 | struct timespec const& mtime, | ||
| 100 | bool shortReply, bool hex, bool derived, | ||
| 101 | std::streamsize precision) const | ||
| 102 | { | ||
| 103 | 159 | unsigned int flags = MSR_R | MSR_W | MSR_WOP; | |
| 104 | |||
| 105 | // <parameter name="/lan/Control/EPC/EnableMotor/Value/2" | ||
| 106 | // index="30" value="0"/> | ||
| 107 | |||
| 108 | 159 | setAttributes(element, shortReply, derived); | |
| 109 | |||
| 110 |
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159 | if (!shortReply) { |
| 111 | 236 | XmlElement::Attribute(element, "flags") | |
| 112 |
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236 | << flags + (dependent ? 0x100 : 0); |
| 113 | |||
| 114 | // persistent= | ||
| 115 |
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118 | if (persistent) |
| 116 | ✗ | XmlElement::Attribute(element, "persistent") << 1; | |
| 117 | } | ||
| 118 | |||
| 119 | // mtime= | ||
| 120 |
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159 | XmlElement::Attribute(element, "mtime") << mtime; |
| 121 | |||
| 122 |
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159 | if (valueBuf) { |
| 123 |
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159 | if (hex) |
| 124 | 90 | XmlElement::Attribute(element, "hexvalue") | |
| 125 |
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90 | .hexDec(valueBuf + offset, memSize); |
| 126 | else | ||
| 127 | 228 | XmlElement::Attribute(element, "value") | |
| 128 |
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228 | .csv(this, valueBuf + offset, 1, precision); |
| 129 | } | ||
| 130 | |||
| 131 |
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159 | if (!shortReply) |
| 132 | 118 | addCompoundFields(element, variable->dtype); | |
| 133 | |||
| 134 | 159 | return; | |
| 135 | } | ||
| 136 | |||
| 137 | ///////////////////////////////////////////////////////////////////////////// | ||
| 138 | 43 | int Parameter::setHexValue(const Session *session, | |
| 139 | const char *s, size_t startindex) const | ||
| 140 | { | ||
| 141 |
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43 | char valueBuf[memSize]; |
| 142 | 43 | const char *valueEnd = valueBuf + memSize; | |
| 143 | static const char hexNum[] = { | ||
| 144 | 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 0, 0, 0, 0, 0, | ||
| 145 | 0,10,11,12,13,14,15, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 146 | 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, | ||
| 147 | 0,10,11,12,13,14,15 | ||
| 148 | }; | ||
| 149 | |||
| 150 | char *c; | ||
| 151 |
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455 | for (c = valueBuf; *s and c < valueEnd; c++) { |
| 152 | 412 | unsigned char c1 = *s++ - '0'; | |
| 153 | 412 | unsigned char c2 = *s++ - '0'; | |
| 154 |
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412 | if (std::max(c1,c2) >= sizeof(hexNum)) |
| 155 | ✗ | return -EINVAL; | |
| 156 |
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412 | *c = hexNum[c1] << 4 | hexNum[c2]; |
| 157 | } | ||
| 158 | // FIXME: actually the setting operation must also check for | ||
| 159 | // endianness! | ||
| 160 | |||
| 161 |
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129 | return mainParam->setValue( session, valueBuf, |
| 162 |
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172 | offset + startindex * dtype.size, c - valueBuf); |
| 163 | } | ||
| 164 | |||
| 165 | ///////////////////////////////////////////////////////////////////////////// | ||
| 166 | ✗ | int Parameter::setElements(std::istream& is, | |
| 167 | const PdServ::DataType& dtype, const PdServ::DataType::DimType& dim, | ||
| 168 | char*& buf, size_t& count) const | ||
| 169 | { | ||
| 170 | ✗ | if (dtype.primary() == dtype.compound_T) { | |
| 171 | ✗ | const PdServ::DataType::FieldList& fieldList = dtype.getFieldList(); | |
| 172 | ✗ | PdServ::DataType::FieldList::const_iterator it; | |
| 173 | ✗ | for (size_t i = 0; i < dim.nelem; ++i) { | |
| 174 | ✗ | for (it = fieldList.begin(); it != fieldList.end(); ++it) { | |
| 175 | ✗ | int rv = setElements(is, (*it)->type, (*it)->dim, buf, count); | |
| 176 | ✗ | if (rv) | |
| 177 | ✗ | return rv; | |
| 178 | } | ||
| 179 | } | ||
| 180 | ✗ | return 0; | |
| 181 | } | ||
| 182 | |||
| 183 | ✗ | double v; | |
| 184 | ✗ | char c; | |
| 185 | ✗ | for (size_t i = 0; i < dim.nelem; ++i) { | |
| 186 | |||
| 187 | ✗ | is >> v; | |
| 188 | ✗ | if (!is) | |
| 189 | ✗ | return -EINVAL; | |
| 190 | |||
| 191 | ✗ | dtype.setValue(buf, v); | |
| 192 | ✗ | count += dtype.size; | |
| 193 | |||
| 194 | ✗ | is >> c; | |
| 195 | ✗ | if (!is) | |
| 196 | ✗ | return 1; | |
| 197 | |||
| 198 | ✗ | if (c != ',' and c != ';' and !isspace(c)) | |
| 199 | ✗ | return -EINVAL; | |
| 200 | } | ||
| 201 | |||
| 202 | ✗ | return 0; | |
| 203 | } | ||
| 204 | |||
| 205 | ///////////////////////////////////////////////////////////////////////////// | ||
| 206 | ✗ | int Parameter::setDoubleValue(const Session *session, | |
| 207 | const char *buf, size_t startindex) const | ||
| 208 | { | ||
| 209 | ✗ | char valueBuf[memSize]; | |
| 210 | ✗ | char *dataBuf = valueBuf; | |
| 211 | |||
| 212 | ✗ | std::istringstream is(buf); | |
| 213 | ✗ | is.imbue(std::locale::classic()); | |
| 214 | |||
| 215 | //log_debug("buf=%s", buf); | ||
| 216 | ✗ | size_t count = 0; | |
| 217 | ✗ | int rv = setElements(is, dtype, dim, dataBuf, count); | |
| 218 | |||
| 219 | // log_debug("rv=%i startindex=%zu offset=%zu count=%zu", | ||
| 220 | // rv, startindex, offset/dtype.size + startindex, count); | ||
| 221 | // for (size_t i = 0; i < count; i++) | ||
| 222 | // std::cerr << ((const double*)valueBuf)[i] << ' '; | ||
| 223 | // std::cerr << std::endl; | ||
| 224 | return rv < 0 | ||
| 225 | ✗ | ? rv | |
| 226 | ✗ | : mainParam->setValue( session, valueBuf, | |
| 227 | ✗ | offset + startindex * dtype.size, count); | |
| 228 | } | ||
| 229 |