1 | /* |
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2 | * Author : Gérald FENOY |
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3 | * |
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4 | * Copyright (c) 2009-2015 GeoLabs SARL |
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5 | * |
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6 | * Permission is hereby granted, free of charge, to any person obtaining a copy |
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7 | * of this software and associated documentation files (the "Software"), to deal |
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8 | * in the Software without restriction, including without limitation the rights |
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9 | * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell |
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10 | * copies of the Software, and to permit persons to whom the Software is |
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11 | * furnished to do so, subject to the following conditions: |
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12 | * |
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13 | * The above copyright notice and this permission notice shall be included in |
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14 | * all copies or substantial portions of the Software. |
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15 | * |
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16 | * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR |
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17 | * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, |
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18 | * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE |
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19 | * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER |
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20 | * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, |
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21 | * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN |
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22 | * THE SOFTWARE. |
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23 | */ |
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24 | |
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25 | #include "service_internal.h" |
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26 | #ifdef USE_MS |
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27 | #include "service_internal_ms.h" |
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28 | #else |
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29 | #include "cpl_vsi.h" |
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30 | #endif |
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31 | |
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32 | #ifndef TRUE |
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33 | #define TRUE 1 |
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34 | #endif |
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35 | #ifndef FALSE |
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36 | #define FALSE -1 |
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37 | #endif |
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38 | |
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39 | #define ERROR_MSG_MAX_LENGTH 1024 |
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40 | #ifndef RELY_ON_DB |
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41 | #include <dirent.h> |
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42 | |
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43 | /** |
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44 | * Read the sid file attached of a service if any |
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45 | * |
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46 | * @param conf the maps containing the setting of the main.cfg file |
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47 | * @param pid the service identifier (usid key from the [lenv] section) |
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48 | * @return the reported status char* (temporary/final result) |
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49 | */ |
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50 | char* getStatusId(maps* conf,char* pid){ |
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51 | map* r_inputs = getMapFromMaps (conf, "main", "tmpPath"); |
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52 | char* fbkpid = |
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53 | (char *) |
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54 | malloc ((strlen (r_inputs->value) + strlen (pid) + 7) * sizeof (char)); |
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55 | sprintf (fbkpid, "%s/%s.sid", r_inputs->value, pid); |
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56 | FILE* f0 = fopen (fbkpid, "r"); |
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57 | if(f0!=NULL){ |
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58 | long flen; |
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59 | char *fcontent; |
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60 | fseek (f0, 0, SEEK_END); |
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61 | flen = ftell (f0); |
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62 | fseek (f0, 0, SEEK_SET); |
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63 | fcontent = (char *) malloc ((flen + 1) * sizeof (char)); |
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64 | fread(fcontent,flen,1,f0); |
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65 | fcontent[flen]=0; |
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66 | fclose(f0); |
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67 | return fcontent; |
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68 | }else |
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69 | return NULL; |
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70 | } |
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71 | |
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72 | /** |
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73 | * Acquire the global lock |
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74 | * |
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75 | * @param conf the maps containing the setting of the main.cfg file |
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76 | * @return a semid |
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77 | */ |
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78 | semid acquireLock(maps* conf){ |
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79 | semid lockid; |
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80 | int itn=0; |
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81 | toRetry1: |
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82 | lockid=getShmLockId(conf,1); |
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83 | if( |
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84 | #ifdef WIN32 |
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85 | lockid==NULL |
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86 | #else |
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87 | lockid<0 |
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88 | #endif |
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89 | ){ |
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90 | #ifdef WIN32 |
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91 | return NULL; |
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92 | #else |
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93 | return -1; |
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94 | #endif |
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95 | } |
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96 | if(lockShm(lockid)<0){ |
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97 | #ifdef WIN32 |
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98 | return NULL; |
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99 | #else |
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100 | if(itn<ZOO_LOCK_MAX_RETRY){ |
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101 | itn++; |
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102 | goto toRetry1; |
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103 | }else |
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104 | return -1; |
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105 | #endif |
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106 | }else |
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107 | return lockid; |
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108 | } |
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109 | |
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110 | /** |
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111 | * Read the cache file of a running service |
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112 | * |
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113 | * @param conf the maps containing the setting of the main.cfg file |
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114 | * @param pid the service identifier (usid key from the [lenv] section) |
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115 | * @return the reported status char* (temporary/final result) |
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116 | */ |
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117 | char* _getStatusFile(maps* conf,char* pid){ |
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118 | map* tmpTmap = getMapFromMaps (conf, "main", "tmpPath"); |
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119 | |
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120 | struct dirent *dp; |
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121 | DIR *dirp = opendir(tmpTmap->value); |
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122 | char fileName[1024]; |
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123 | int hasFile=-1; |
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124 | if(dirp!=NULL){ |
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125 | char tmp[128]; |
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126 | sprintf(tmp,"_%s.xml",pid); |
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127 | while ((dp = readdir(dirp)) != NULL){ |
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128 | #ifdef DEBUG |
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129 | fprintf(stderr,"File : %s searched : %s\n",dp->d_name,tmp); |
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130 | #endif |
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131 | if(strstr(dp->d_name,"final_")==0 && strstr(dp->d_name,tmp)!=0){ |
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132 | sprintf(fileName,"%s/%s",tmpTmap->value,dp->d_name); |
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133 | hasFile=1; |
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134 | break; |
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135 | } |
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136 | } |
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137 | } |
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138 | if(hasFile>0){ |
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139 | semid lockid; |
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140 | char* stat=getStatusId(conf,pid); |
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141 | if(stat!=NULL){ |
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142 | setMapInMaps(conf,"lenv","lid",stat); |
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143 | lockid=acquireLock(conf); |
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144 | if(lockid<0) |
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145 | return NULL; |
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146 | } |
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147 | |
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148 | FILE* f0 = fopen (fileName, "r"); |
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149 | if(f0!=NULL){ |
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150 | fseek (f0, 0, SEEK_END); |
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151 | long flen = ftell (f0); |
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152 | fseek (f0, 0, SEEK_SET); |
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153 | char *tmps1 = (char *) malloc ((flen + 1) * sizeof (char)); |
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154 | fread(tmps1,flen,1,f0); |
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155 | tmps1[flen]=0; |
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156 | fclose(f0); |
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157 | if(stat!=NULL){ |
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158 | unlockShm(lockid); |
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159 | free(stat); |
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160 | } |
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161 | |
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162 | return tmps1; |
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163 | } |
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164 | else{ |
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165 | if(stat!=NULL){ |
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166 | unlockShm(lockid); |
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167 | free(stat); |
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168 | } |
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169 | return NULL; |
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170 | } |
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171 | } |
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172 | else |
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173 | return NULL; |
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174 | } |
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175 | |
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176 | /** |
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177 | * Get the ongoing status of a running service |
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178 | * |
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179 | * @param conf the maps containing the setting of the main.cfg file |
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180 | * @param pid the service identifier (usid key from the [lenv] section) |
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181 | * @return the reported status char* (MESSAGE|POURCENTAGE) |
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182 | */ |
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183 | char* _getStatus(maps* conf,char* lid){ |
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184 | map* r_inputs = getMapFromMaps (conf, "main", "tmpPath"); |
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185 | char* fbkpid = |
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186 | (char *) |
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187 | malloc ((strlen (r_inputs->value) + strlen (lid) + 9) * sizeof (char)); |
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188 | sprintf (fbkpid, "%s/%s.status", r_inputs->value, lid); |
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189 | FILE* f0 = fopen (fbkpid, "r"); |
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190 | if(f0!=NULL){ |
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191 | semid lockid; |
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192 | char* stat; |
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193 | long flen; |
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194 | stat=getStatusId(conf,lid); |
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195 | if(stat!=NULL){ |
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196 | setMapInMaps(conf,"lenv","lid",stat); |
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197 | lockid=acquireLock(conf); |
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198 | if(lockid<0) |
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199 | return NULL; |
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200 | } |
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201 | fseek (f0, 0, SEEK_END); |
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202 | flen = ftell (f0); |
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203 | if(flen>0){ |
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204 | char *fcontent; |
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205 | fseek (f0, 0, SEEK_SET); |
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206 | fcontent = (char *) malloc ((flen + 1) * sizeof (char)); |
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207 | fread(fcontent,flen,1,f0); |
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208 | fcontent[flen]=0; |
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209 | fclose(f0); |
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210 | free(fbkpid); |
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211 | if(stat!=NULL){ |
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212 | #ifndef WIN32 |
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213 | removeShmLock(conf,1); |
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214 | #else |
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215 | unlockShm(lockid); |
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216 | #endif |
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217 | free(stat); |
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218 | } |
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219 | return fcontent; |
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220 | } |
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221 | fclose(f0); |
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222 | free(fbkpid); |
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223 | if(stat!=NULL){ |
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224 | removeShmLock(conf,1); |
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225 | free(stat); |
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226 | } |
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227 | return NULL; |
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228 | }else{ |
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229 | free(fbkpid); |
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230 | char* stat=getStatusId(conf,lid); |
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231 | setMapInMaps(conf,"lenv","lid",stat); |
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232 | removeShmLock(conf,1); |
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233 | return NULL; |
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234 | } |
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235 | } |
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236 | |
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237 | /** |
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238 | * Stop handling status repport. |
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239 | * |
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240 | * @param conf the map containing the setting of the main.cfg file |
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241 | */ |
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242 | void unhandleStatus(maps *conf){ |
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243 | map* r_inputs = getMapFromMaps (conf, "main", "tmpPath"); |
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244 | map* usid = getMapFromMaps (conf, "lenv", "usid"); |
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245 | char* fbkpid = |
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246 | (char *) malloc ((strlen (r_inputs->value) + strlen (usid->value) + 9) |
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247 | * sizeof (char)); |
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248 | sprintf (fbkpid, "%s/%s.status", r_inputs->value, usid->value); |
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249 | unlink(fbkpid); |
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250 | free(fbkpid); |
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251 | } |
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252 | |
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253 | /** |
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254 | * Update the current status of the running service. |
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255 | * |
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256 | * @see acquireLock, lockShm |
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257 | * @param conf the map containing the setting of the main.cfg file |
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258 | * @return 0 on success, -2 if shmget failed, -1 if shmat failed |
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259 | */ |
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260 | int _updateStatus(maps *conf){ |
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261 | map* r_inputs = getMapFromMaps (conf, "main", "tmpPath"); |
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262 | map* sid = getMapFromMaps (conf, "lenv", "usid"); |
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263 | char* fbkpid = |
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264 | (char *) |
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265 | malloc ((strlen (r_inputs->value) + strlen (sid->value) + 9) * sizeof (char)); |
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266 | sprintf (fbkpid, "%s/%s.status", r_inputs->value, sid->value); |
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267 | map* status=getMapFromMaps(conf,"lenv","status"); |
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268 | map* msg=getMapFromMaps(conf,"lenv","message"); |
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269 | if(status!=NULL && msg!=NULL && |
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270 | status->value!=NULL && msg->value!=NULL && |
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271 | strlen(status->value)>0 && strlen(msg->value)>1){ |
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272 | semid lockid; |
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273 | char* stat=getStatusId(conf,sid->value); |
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274 | if(stat!=NULL){ |
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275 | lockid=acquireLock(conf); |
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276 | if(lockid<0){ |
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277 | dumpMap(status); |
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278 | return ZOO_LOCK_ACQUIRE_FAILED; |
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279 | } |
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280 | } |
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281 | FILE* fstatus=fopen(fbkpid,"w"); |
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282 | if(fstatus!=NULL){ |
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283 | fprintf(fstatus,"%s|%s",status->value,msg->value); |
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284 | fflush(fstatus); |
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285 | fclose(fstatus); |
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286 | } |
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287 | if(stat!=NULL){ |
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288 | unlockShm(lockid); |
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289 | free(stat); |
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290 | } |
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291 | } |
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292 | return 0; |
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293 | } |
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294 | |
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295 | #endif |
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296 | |
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297 | #ifdef WIN32 |
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298 | |
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299 | #define SHMEMSIZE 4096 |
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300 | |
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301 | size_t getKeyValue(maps* conf, char* key, size_t length){ |
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302 | if(conf==NULL) { |
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303 | strncpy(key, "700666", length); |
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304 | return strlen(key); |
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305 | } |
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306 | |
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307 | map *tmpMap=getMapFromMaps(conf,"lenv","lid"); |
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308 | if(tmpMap==NULL) |
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309 | tmpMap=getMapFromMaps(conf,"lenv","osid"); |
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310 | |
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311 | if(tmpMap!=NULL){ |
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312 | snprintf(key, length, "zoo_sem_%s", tmpMap->value); |
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313 | } |
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314 | else { |
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315 | strncpy(key, "-1", length); |
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316 | } |
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317 | return strlen(key); |
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318 | } |
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319 | |
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320 | |
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321 | semid getShmLockId(maps* conf, int nsems){ |
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322 | semid sem_id; |
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323 | char key[MAX_PATH]; |
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324 | getKeyValue(conf, key, MAX_PATH); |
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325 | |
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326 | sem_id = CreateSemaphore( NULL, nsems, nsems+1, key); |
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327 | if(sem_id==NULL){ |
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328 | #ifdef DEBUG |
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329 | fprintf(stderr,"Semaphore failed to create: %s\n", getLastErrorMessage()); |
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330 | #endif |
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331 | return NULL; |
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332 | } |
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333 | #ifdef DEBUG |
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334 | fprintf(stderr,"%s Accessed !\n",key); |
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335 | #endif |
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336 | return sem_id; |
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337 | } |
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338 | |
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339 | int removeShmLock(maps* conf, int nsems){ |
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340 | semid sem_id=getShmLockId(conf,1); |
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341 | if (CloseHandle(sem_id) == 0) { |
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342 | #ifdef DEBUG |
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343 | fprintf(stderr,"Unable to remove semaphore: %s\n", getLastErrorMessage()); |
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344 | #endif |
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345 | return -1; |
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346 | } |
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347 | #ifdef DEBUG |
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348 | fprintf(stderr,"%d Removed !\n",sem_id); |
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349 | #endif |
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350 | return 0; |
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351 | } |
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352 | |
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353 | int lockShm(semid id){ |
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354 | DWORD dwWaitResult=WaitForSingleObject(id,INFINITE); |
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355 | switch (dwWaitResult){ |
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356 | case WAIT_OBJECT_0: |
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357 | return 0; |
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358 | break; |
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359 | case WAIT_TIMEOUT: |
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360 | return -1; |
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361 | break; |
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362 | default: |
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363 | return -2; |
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364 | break; |
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365 | } |
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366 | return 0; |
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367 | } |
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368 | |
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369 | int unlockShm(semid id){ |
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370 | if(!ReleaseSemaphore(id,1,NULL)){ |
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371 | return -1; |
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372 | } |
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373 | return 0; |
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374 | } |
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375 | |
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376 | static LPVOID lpvMemG = NULL; // pointer to shared memory |
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377 | static HANDLE hMapObjectG = NULL; // handle to file mapping |
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378 | |
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379 | |
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380 | char* getStatus(int pid){ |
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381 | char *lpszBuf=(char*) malloc(SHMEMSIZE*sizeof(char)); |
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382 | int i=0; |
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383 | LPWSTR lpszTmp=NULL; |
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384 | LPVOID lpvMem = NULL; |
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385 | HANDLE hMapObject = NULL; |
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386 | BOOL fIgnore,fInit; |
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387 | char tmp[1024]; |
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388 | sprintf(tmp,"%d",pid); |
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389 | if(hMapObject==NULL) |
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390 | hMapObject = CreateFileMapping( |
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391 | INVALID_HANDLE_VALUE, // use paging file |
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392 | NULL, // default security attributes |
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393 | PAGE_READWRITE, // read/write access |
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394 | 0, // size: high 32-bits |
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395 | 4096, // size: low 32-bits |
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396 | TEXT(tmp)); // name of map object |
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397 | if (hMapObject == NULL){ |
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398 | #ifdef DEBUG |
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399 | fprintf(stderr,"ERROR on line %d\n",__LINE__); |
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400 | #endif |
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401 | return "-1"; |
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402 | } |
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403 | if((GetLastError() != ERROR_ALREADY_EXISTS)){ |
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404 | #ifdef DEBUG |
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405 | fprintf(stderr,"ERROR on line %d\n",__LINE__); |
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406 | fprintf(stderr,"READING STRING S %s\n", getLastErrorMessage()); |
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407 | #endif |
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408 | fIgnore = UnmapViewOfFile(lpvMem); |
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409 | fIgnore = CloseHandle(hMapObject); |
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410 | return "-1"; |
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411 | } |
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412 | fInit=TRUE; |
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413 | if(lpvMem==NULL) |
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414 | lpvMem = MapViewOfFile( |
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415 | hMapObject, // object to map view of |
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416 | FILE_MAP_READ, // read/write access |
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417 | 0, // high offset: map from |
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418 | 0, // low offset: beginning |
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419 | 0); // default: map entire file |
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420 | if (lpvMem == NULL){ |
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421 | #ifdef DEBUG |
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422 | fprintf(stderr,"READING STRING S %d\n",__LINE__); |
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423 | fprintf(stderr,"READING STRING S %s\n", getLastErrorMessage()); |
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424 | #endif |
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425 | return "-1"; |
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426 | } |
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427 | lpszTmp = (LPWSTR) lpvMem; |
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428 | while (*lpszTmp){ |
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429 | lpszBuf[i] = (char)*lpszTmp; |
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430 | *lpszTmp++; |
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431 | lpszBuf[i+1] = '\0'; |
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432 | i++; |
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433 | } |
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434 | return (char*)lpszBuf; |
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435 | } |
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436 | |
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437 | #else |
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438 | /** |
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439 | * Number of time to try to access a semaphores set |
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440 | * @see getShmLockId |
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441 | */ |
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442 | #define MAX_RETRIES 10 |
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443 | |
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444 | #ifndef __APPLE__ |
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445 | /** |
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446 | * arg for semctl system calls. |
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447 | */ |
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448 | union semun { |
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449 | int val; //!< value for SETVAL |
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450 | struct semid_ds *buf; //!< buffer for IPC_STAT & IPC_SET |
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451 | ushort *array; //!< array for GETALL & SETALL |
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452 | }; |
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453 | #endif |
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454 | |
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455 | /** |
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456 | * Set in the pre-allocated key the zoo_sem_[OSID] string |
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457 | * where [OSID] is the lid (if any) or osid value from the [lenv] section. |
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458 | * |
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459 | * @param conf the map containing the setting of the main.cfg file |
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460 | */ |
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461 | int getKeyValue(maps* conf){ |
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462 | if(conf==NULL) |
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463 | return 700666; |
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464 | map *tmpMap=getMapFromMaps(conf,"lenv","lid"); |
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465 | if(tmpMap==NULL) |
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466 | tmpMap=getMapFromMaps(conf,"lenv","osid"); |
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467 | int key=-1; |
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468 | if(tmpMap!=NULL) |
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469 | key=atoi(tmpMap->value); |
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470 | return key; |
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471 | } |
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472 | |
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473 | /** |
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474 | * Try to create or access a semaphore set. |
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475 | * |
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476 | * @see getKeyValue |
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477 | * @param conf the map containing the setting of the main.cfg file |
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478 | * @param nsems number of semaphores |
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479 | * @return a semaphores set indentifier on success, -1 in other case |
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480 | */ |
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481 | int getShmLockId(maps* conf, int nsems){ |
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482 | int i; |
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483 | union semun arg; |
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484 | struct semid_ds buf; |
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485 | struct sembuf sb; |
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486 | semid sem_id; |
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487 | int key=getKeyValue(conf); |
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488 | |
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489 | sem_id = semget(key, nsems, IPC_CREAT | IPC_EXCL | 0666); |
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490 | |
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491 | if (sem_id >= 0) { /* we got it first */ |
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492 | sb.sem_op = 1; |
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493 | sb.sem_flg = 0; |
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494 | arg.val=1; |
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495 | for(sb.sem_num = 0; sb.sem_num < nsems; sb.sem_num++) { |
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496 | /* do a semop() to "free" the semaphores. */ |
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497 | /* this sets the sem_otime field, as needed below. */ |
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498 | if (semop(sem_id, &sb, 1) == -1) { |
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499 | int e = errno; |
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500 | semctl(sem_id, 0, IPC_RMID); /* clean up */ |
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501 | errno = e; |
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502 | return -1; /* error, check errno */ |
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503 | } |
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504 | } |
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505 | } else if (errno == EEXIST) { /* someone else got it first */ |
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506 | int ready = 0; |
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507 | |
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508 | sem_id = semget(key, nsems, 0); /* get the id */ |
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509 | if (sem_id < 0) return sem_id; /* error, check errno */ |
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510 | |
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511 | /* wait for other process to initialize the semaphore: */ |
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512 | arg.buf = &buf; |
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513 | for(i = 0; i < MAX_RETRIES && !ready; i++) { |
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514 | semctl(sem_id, nsems-1, IPC_STAT, arg); |
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515 | if (arg.buf->sem_otime != 0) { |
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516 | #ifdef DEBUG |
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517 | fprintf(stderr,"Semaphore acquired ...\n"); |
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518 | #endif |
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519 | ready = 1; |
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520 | } else { |
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521 | #ifdef DEBUG |
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522 | fprintf(stderr,"Retry to access the semaphore later ...\n"); |
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523 | #endif |
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524 | zSleep(1); |
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525 | } |
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526 | } |
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527 | errno = ZOO_LOCK_ACQUIRE_FAILED; |
---|
528 | if (!ready) { |
---|
529 | #ifdef DEBUG |
---|
530 | fprintf(stderr,"Unable to access the semaphore ...\n"); |
---|
531 | #endif |
---|
532 | errno = ETIME; |
---|
533 | return -1; |
---|
534 | } |
---|
535 | } else { |
---|
536 | return sem_id; /* error, check errno */ |
---|
537 | } |
---|
538 | #ifdef DEBUG |
---|
539 | fprintf(stderr,"%d Created !\n",sem_id); |
---|
540 | #endif |
---|
541 | return sem_id; |
---|
542 | } |
---|
543 | |
---|
544 | /** |
---|
545 | * Try to remove a semaphore set. |
---|
546 | * |
---|
547 | * @param conf the map containing the setting of the main.cfg file |
---|
548 | * @param nsems number of semaphores |
---|
549 | * @return 0 if the semaphore can be removed, -1 in other case. |
---|
550 | */ |
---|
551 | int removeShmLock(maps* conf, int nsems){ |
---|
552 | union semun arg; |
---|
553 | int sem_id=getShmLockId(conf,nsems); |
---|
554 | if (semctl(sem_id, 0, IPC_RMID, arg) == -1) { |
---|
555 | #ifdef DEBUG |
---|
556 | perror("semctl remove"); |
---|
557 | #endif |
---|
558 | return -1; |
---|
559 | } |
---|
560 | #ifdef DEBUG |
---|
561 | fprintf(stderr,"Semaphore removed!\n"); |
---|
562 | #endif |
---|
563 | return 0; |
---|
564 | } |
---|
565 | |
---|
566 | /** |
---|
567 | * Lock a semaphore set. |
---|
568 | * |
---|
569 | * @param id the semaphores set indetifier |
---|
570 | * @return 0 if the semaphore can be locked, -1 in other case. |
---|
571 | */ |
---|
572 | int lockShm(int id){ |
---|
573 | struct sembuf sb; |
---|
574 | sb.sem_num = 0; |
---|
575 | sb.sem_op = -1; /* set to allocate resource */ |
---|
576 | sb.sem_flg = SEM_UNDO; |
---|
577 | if (semop(id, &sb, 1) == -1){ |
---|
578 | #ifdef DEBUG |
---|
579 | perror("semop lock"); |
---|
580 | #endif |
---|
581 | return -1; |
---|
582 | } |
---|
583 | return 0; |
---|
584 | } |
---|
585 | |
---|
586 | /** |
---|
587 | * unLock a semaphore set. |
---|
588 | * |
---|
589 | * @param id the semaphores set indetifier |
---|
590 | * @return 0 if the semaphore can be locked, -1 in other case. |
---|
591 | */ |
---|
592 | int unlockShm(int id){ |
---|
593 | struct sembuf sb; |
---|
594 | sb.sem_num = 0; |
---|
595 | sb.sem_op = 1; /* free resource */ |
---|
596 | sb.sem_flg = SEM_UNDO; |
---|
597 | if (semop(id, &sb, 1) == -1) { |
---|
598 | #ifdef DEBUG |
---|
599 | perror("semop unlock"); |
---|
600 | #endif |
---|
601 | return -1; |
---|
602 | } |
---|
603 | return 0; |
---|
604 | } |
---|
605 | |
---|
606 | /** |
---|
607 | * Get the current status of the running service. |
---|
608 | * |
---|
609 | * @see getKeyValue, getShmLockId, lockShm |
---|
610 | * @param pid the semaphores |
---|
611 | * @return 0 on success, -2 if shmget failed, -1 if shmat failed |
---|
612 | */ |
---|
613 | char* getStatus(int pid){ |
---|
614 | int shmid; |
---|
615 | key_t key; |
---|
616 | void *shm; |
---|
617 | key=pid; |
---|
618 | if ((shmid = shmget(key, SHMSZ, 0666)) < 0) { |
---|
619 | #ifdef DEBUG |
---|
620 | fprintf(stderr,"shmget failed in getStatus\n"); |
---|
621 | #endif |
---|
622 | }else{ |
---|
623 | if ((shm = shmat(shmid, NULL, 0)) == (char *) -1) { |
---|
624 | #ifdef DEBUG |
---|
625 | fprintf(stderr,"shmat failed in getStatus\n"); |
---|
626 | #endif |
---|
627 | }else{ |
---|
628 | char *ret=strdup((char*)shm); |
---|
629 | shmdt((void *)shm); |
---|
630 | return ret; |
---|
631 | } |
---|
632 | } |
---|
633 | return (char*)"-1"; |
---|
634 | } |
---|
635 | |
---|
636 | #endif |
---|
637 | |
---|
638 | /** |
---|
639 | * Update the status of an ongoing service |
---|
640 | * |
---|
641 | * @param conf the maps containing the settings of the main.cfg file |
---|
642 | * @param percentCompleted percentage of completude of execution of the service |
---|
643 | * @param message information about the current step executed |
---|
644 | * @return the value of _updateStatus |
---|
645 | * @see _updateStatus |
---|
646 | */ |
---|
647 | int updateStatus( maps* conf, const int percentCompleted, const char* message ){ |
---|
648 | char tmp[4]; |
---|
649 | snprintf(tmp,4,"%d",percentCompleted); |
---|
650 | setMapInMaps( conf, "lenv", "status", tmp ); |
---|
651 | setMapInMaps( conf, "lenv", "message", message); |
---|
652 | return _updateStatus( conf ); |
---|
653 | } |
---|
654 | |
---|
655 | /** |
---|
656 | * Access an input value |
---|
657 | * |
---|
658 | * @param inputs the maps to search for the input value |
---|
659 | * @param parameterName the input name to fetch the value |
---|
660 | * @param numberOfBytes the resulting size of the value to add (for binary |
---|
661 | * values), -1 for basic char* data |
---|
662 | * @return a pointer to the input value if found, NULL in other case. |
---|
663 | */ |
---|
664 | char* getInputValue( maps* inputs, const char* parameterName, size_t* numberOfBytes){ |
---|
665 | map* res=getMapFromMaps(inputs,parameterName,"value"); |
---|
666 | if(res!=NULL){ |
---|
667 | map* size=getMapFromMaps(inputs,parameterName,"size"); |
---|
668 | if(size!=NULL){ |
---|
669 | *numberOfBytes=(size_t)atoi(size->value); |
---|
670 | return res->value; |
---|
671 | }else{ |
---|
672 | *numberOfBytes=strlen(res->value); |
---|
673 | return res->value; |
---|
674 | } |
---|
675 | } |
---|
676 | return NULL; |
---|
677 | } |
---|
678 | |
---|
679 | /** |
---|
680 | * Read a file using the GDAL VSI API |
---|
681 | * |
---|
682 | * @param conf the maps containing the settings of the main.cfg file |
---|
683 | * @param dataSource the datasource name to read |
---|
684 | * @warning make sure to free ressources returned by this function |
---|
685 | */ |
---|
686 | char *readVSIFile(maps* conf,const char* dataSource){ |
---|
687 | VSILFILE * fichier=VSIFOpenL(dataSource,"rb"); |
---|
688 | VSIStatBuf file_status; |
---|
689 | VSIStatL(dataSource, &file_status); |
---|
690 | if(fichier==NULL){ |
---|
691 | char tmp[1024]; |
---|
692 | sprintf(tmp,"Failed to open file %s for reading purpose. File seems empty %lld.", |
---|
693 | dataSource,file_status.st_size); |
---|
694 | setMapInMaps(conf,"lenv","message",tmp); |
---|
695 | return NULL; |
---|
696 | } |
---|
697 | char *res1=(char *)malloc(file_status.st_size*sizeof(char)); |
---|
698 | VSIFReadL(res1,1,file_status.st_size*sizeof(char),fichier); |
---|
699 | res1[file_status.st_size-1]=0; |
---|
700 | VSIFCloseL(fichier); |
---|
701 | VSIUnlink(dataSource); |
---|
702 | return res1; |
---|
703 | } |
---|
704 | |
---|
705 | /** |
---|
706 | * Set an output value |
---|
707 | * |
---|
708 | * @param outputs the maps to define the output value |
---|
709 | * @param parameterName the output name to set the value |
---|
710 | * @param data the value to set |
---|
711 | * @param numberOfBytes size of the value to add (for binary values), -1 for |
---|
712 | * basic char* data |
---|
713 | * @return 0 |
---|
714 | */ |
---|
715 | int setOutputValue( maps* outputs, const char* parameterName, char* data, size_t numberOfBytes ){ |
---|
716 | if(numberOfBytes==-1){ |
---|
717 | setMapInMaps(outputs,parameterName,"value",data); |
---|
718 | }else{ |
---|
719 | char size[1024]; |
---|
720 | map* tmp=getMapFromMaps(outputs,parameterName,"value"); |
---|
721 | if(tmp==NULL){ |
---|
722 | setMapInMaps(outputs,parameterName,"value",""); |
---|
723 | tmp=getMapFromMaps(outputs,parameterName,"value"); |
---|
724 | } |
---|
725 | free(tmp->value); |
---|
726 | tmp->value=(char*) malloc((numberOfBytes+1)*sizeof(char)); |
---|
727 | memcpy(tmp->value,data,numberOfBytes); |
---|
728 | sprintf(size,"%lu",numberOfBytes); |
---|
729 | setMapInMaps(outputs,parameterName,"size",size); |
---|
730 | } |
---|
731 | return 0; |
---|
732 | } |
---|
733 | |
---|