1 | // %flair:license{
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2 | // This file is part of the Flair framework distributed under the
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3 | // CECILL-C License, Version 1.0.
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4 | // %flair:license}
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5 | // created: 2011/05/01
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6 | // filename: IODevice.cpp
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7 | //
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8 | // author: Guillaume Sanahuja
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9 | // Copyright Heudiasyc UMR UTC/CNRS 7253
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10 | //
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11 | // version: $Id: $
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12 | //
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13 | // purpose: classe de base avec entrees sorties
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14 | //
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15 | //
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16 | /*********************************************************************/
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17 |
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18 | #include "IODevice_impl.h"
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19 | #include "IODevice.h"
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20 | #include "io_data.h"
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21 | #include "io_data_impl.h"
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22 | #include "Thread.h"
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23 | #include "Mutex.h"
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24 | #include "FrameworkManager.h"
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25 | #include "FrameworkManager_impl.h"
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26 | #include "SharedMem.h"
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27 | #include <string.h>
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28 |
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29 | using std::string;
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30 | using std::fstream;
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31 | using namespace flair::core;
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32 |
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33 | IODevice_impl::IODevice_impl(const IODevice *self) {
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34 | this->self = self;
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35 | thread_to_wake = NULL;
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36 | wake_mutex = new Mutex(self);
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37 | framework_impl = ::getFrameworkManagerImpl();
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38 | framework = getFrameworkManager();
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39 | tobelogged = false;
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40 | outputtoshm = false;
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41 | }
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42 |
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43 | IODevice_impl::~IODevice_impl() {}
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44 |
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45 | void IODevice_impl::OutputToShMem(bool enabled) {
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46 | if (framework->IsLogging()) {
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47 | self->Err("impossible while logging\n");
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48 | } else {
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49 | if (LogSize() == 0) {
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50 | self->Warn("log size is null, not enabling output to shared memory.");
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51 | return;
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52 | }
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53 |
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54 | if (enabled) {
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55 | string dev_name =
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56 | getFrameworkManager()->ObjectName() + "-" + self->ObjectName();
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57 | shmem = new SharedMem(self, dev_name.c_str(), LogSize());
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58 | outputtoshm = true;
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59 |
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60 | Printf("Created %s shared memory for object %s; size: %i\n",
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61 | dev_name.c_str(), self->ObjectName().c_str(), LogSize());
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62 | PrintLogsDescriptors();
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63 | } else {
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64 | outputtoshm = false;
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65 | delete shmem;
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66 | }
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67 | }
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68 | }
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69 |
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70 | void IODevice_impl::PrintLogsDescriptors(void) {
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71 | // own logs
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72 | for (size_t i = 0; i < datasToLog.size(); i++)
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73 | datasToLog.at(i)->pimpl_->PrintLogDescriptor();
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74 | // childs logs
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75 | for (size_t i = 0; i < self->TypeChilds()->size(); i++)
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76 | ((IODevice *)self->TypeChilds()->at(i))->pimpl_->PrintLogsDescriptors();
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77 | // manually added logs
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78 | for (size_t i = 0; i < devicesToLog.size(); i++)
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79 | devicesToLog.at(i)->pimpl_->PrintLogsDescriptors();
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80 | }
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81 |
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82 | void IODevice_impl::WriteToShMem(void) {
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83 | if (outputtoshm) {
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84 | size_t size = LogSize();
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85 |
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86 | char *buf = framework_impl->GetBuffer(size);
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87 | char *buf_orig = buf;
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88 | if (buf == NULL) {
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89 | self->Err("err GetBuffer\n");
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90 | return;
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91 | }
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92 |
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93 | AppendLog(&buf);
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94 |
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95 | shmem->Write(buf_orig, size);
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96 | framework_impl->ReleaseBuffer(buf_orig);
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97 | }
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98 | }
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99 |
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100 | void IODevice_impl::AddDeviceToLog(const IODevice *device) {
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101 | if (framework->IsLogging()) {
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102 | self->Err("impossible while logging\n");
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103 | } else {
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104 | devicesToLog.push_back(device);
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105 | }
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106 | }
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107 |
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108 | bool IODevice_impl::SetToBeLogged(void) {
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109 | if (!tobelogged) {
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110 | tobelogged = true;
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111 | return true;
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112 | } else {
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113 | self->Warn("already added to log\n");
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114 | return false;
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115 | }
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116 | }
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117 |
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118 | void IODevice_impl::WriteLogsDescriptors(fstream &desc_file, int *index) {
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119 | // own descriptor
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120 | for (size_t i = 0; i < datasToLog.size(); i++)
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121 | datasToLog.at(i)->pimpl_->WriteLogDescriptor(desc_file, index);
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122 | // childs descriptors
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123 | for (size_t i = 0; i < self->TypeChilds()->size(); i++)
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124 | ((IODevice *)self->TypeChilds()->at(i))
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125 | ->pimpl_->WriteLogsDescriptors(desc_file, index);
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126 | // manually added logs
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127 | for (size_t i = 0; i < devicesToLog.size(); i++)
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128 | devicesToLog.at(i)->pimpl_->WriteLogsDescriptors(desc_file, index);
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129 | }
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130 |
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131 | void IODevice_impl::ResumeThread(void) {
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132 | wake_mutex->GetMutex();
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133 | if (thread_to_wake != NULL) {
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134 | thread_to_wake->Resume();
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135 | thread_to_wake = NULL;
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136 | }
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137 | wake_mutex->ReleaseMutex();
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138 | }
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139 |
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140 | void IODevice_impl::AddDataToLog(const io_data *data) {
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141 | if (framework->IsLogging()) {
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142 | self->Err("impossible while logging\n");
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143 | } else {
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144 | datasToLog.push_back(data);
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145 | }
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146 | }
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147 |
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148 | size_t IODevice_impl::LogSize() const {
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149 | size_t value = 0;
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150 |
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151 | for (size_t i = 0; i < datasToLog.size(); i++) {
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152 | value += datasToLog.at(i)->GetDataType().GetSize();
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153 | }
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154 |
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155 | // childs logs
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156 | for (size_t i = 0; i < self->TypeChilds()->size(); i++) {
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157 | value += ((IODevice *)self->TypeChilds()->at(i))->pimpl_->LogSize();
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158 | }
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159 | // manually added logs
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160 | for (size_t i = 0; i < devicesToLog.size(); i++) {
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161 | value += devicesToLog.at(i)->pimpl_->LogSize();
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162 | }
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163 |
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164 | return value;
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165 | }
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166 |
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167 | void IODevice_impl::WriteLog(Time time) {
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168 | if (tobelogged == false)
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169 | return;
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170 |
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171 | size_t size = LogSize();
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172 |
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173 | char *buf = framework_impl->GetBuffer(
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174 | sizeof(FrameworkManager_impl::log_header_t) + size);
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175 | char *buf_orig = buf;
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176 | if (buf == NULL) {
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177 | self->Err("err GetBuffer\n");
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178 | return;
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179 | }
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180 |
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181 | FrameworkManager_impl::log_header_t header;
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182 | header.device = self;
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183 | header.size = size;
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184 | header.time = time;
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185 |
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186 | memcpy(buf, &header, sizeof(FrameworkManager_impl::log_header_t));
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187 | buf += sizeof(FrameworkManager_impl::log_header_t);
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188 | AppendLog(&buf);
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189 |
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190 | framework_impl->WriteLog(buf_orig,
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191 | sizeof(FrameworkManager_impl::log_header_t) + size);
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192 | framework_impl->ReleaseBuffer(buf_orig);
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193 | }
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194 |
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195 | void IODevice_impl::AppendLog(char **ptr) {
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196 | // Printf("AppendLog %s %x\n",self->ObjectName().c_str(),*ptr);
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197 |
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198 | // copy state to buf
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199 | for (size_t i = 0; i < datasToLog.size(); i++) {
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200 | // printf("copy\n");
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201 | datasToLog.at(i)->CopyDatas(*ptr);
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202 | (*ptr) += datasToLog.at(i)->GetDataType().GetSize();
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203 | }
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204 |
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205 | // copy linked states to buf
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206 | for (size_t i = 0; i < self->TypeChilds()->size(); i++) {
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207 | ((IODevice *)self->TypeChilds()->at(i))->pimpl_->AppendLog(ptr);
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208 | }
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209 | // copy manually added logs to buf
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210 | for (size_t i = 0; i < devicesToLog.size(); i++) {
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211 | devicesToLog.at(i)->pimpl_->AppendLog(ptr);
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212 | // devices.at(i)->DataToLog()->CopyDatas(*ptr);
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213 | //(*ptr)+=devices.at(i)->DataToLog()->Size();
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214 | }
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215 | // Printf("AppendLog %s ok\n",self->ObjectName().c_str());
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216 | }
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217 |
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218 | int IODevice_impl::SetToWake(const Thread *thread) {
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219 | int status = 0;
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220 |
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221 | wake_mutex->GetMutex();
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222 | if (thread_to_wake == NULL) {
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223 | thread_to_wake = (Thread *)thread;
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224 | } else {
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225 | status = -1;
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226 | }
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227 | wake_mutex->ReleaseMutex();
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228 |
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229 | return status;
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230 | }
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