src/server/daemon/configmanager.c

Sun, 23 Jun 2013 13:51:49 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sun, 23 Jun 2013 13:51:49 +0200
changeset 75
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parent 74
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child 77
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permissions
-rw-r--r--

merge

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2013 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include <stdio.h>
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30 #include <stdlib.h>
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31
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32 #include "../public/nsapi.h"
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33
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34 #include "../ucx/string.h"
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35
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36 #include "httplistener.h"
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37 #include "log.h"
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38 #include "configmanager.h"
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39
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40 static ServerConfiguration *current_config = NULL;
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41 static time_t sc_last_modified = 0;
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42
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43 static UcxMap *config_files;
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44
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45 static conf_global_vars_s global_vars;
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46
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47 void init_configuration_manager() {
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48 /* init parser */
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49 init_server_config_parser();
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50
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51 config_files = ucx_map_new(16);
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52 }
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53
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54 NSAPI_PUBLIC conf_global_vars_s* conf_getglobals() {
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55 return &global_vars;
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56 }
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57
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58 void cfgmgr_attach_file(ConfigFile *cf) {
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59 ucx_map_sstr_put(config_files, cf->file, cf);
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60 }
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61
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62 ConfigFile* cfgmgr_get_file(sstr_t name) {
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63 return ucx_map_sstr_get(config_files, name);
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64 }
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65
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66 // copy functions
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67 static void* copy_listener(HttpListener *ls, ServerConfiguration *cfg) {
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68 /*
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69 * we reuse the old listener, but change the
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70 * ServerConfiguration and VirtualServer
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71 */
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72 http_listener_ref(ls);
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73
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74 // TODO: this is non atomar
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75 sstr_t vsname = ls->default_vs.vs->name;
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76 ls->default_vs.vs = ucx_map_sstr_get(cfg->host_vs, vsname);
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77 ls->cfg = cfg;
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78
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79 return ls;
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80 }
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81
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82 static void* copy_vs(void *vserver, void *pool) {
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83 VirtualServer *vs = vs_copy(vserver, pool);
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84
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85 /*
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86 * this function is executed on configuration reload, so some
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87 * VS configs may be changed
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88 *
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89 * vs
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90 * objects
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91 */
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92 ConfigFile *objectfile = cfgmgr_get_file(vs->objectfile);
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93 vs->objects = objectfile->data;
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94 return vs;
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95 }
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96
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97 int cfgmgr_reload_file(ConfigFile *f, ServerConfiguration *conf, int *reload) {
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98 struct stat s;
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99 if(stat(f->file.ptr, &s) != 0) {
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100 fprintf(
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101 stderr,
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102 "Error: Cannot get stat of file %s\n", f->file.ptr);
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103 perror("cfgmgr_load_config: stat");
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104 return -1;
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105 }
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106
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107 //printf("1 time: %d - %d\n", f->last_modified, s.st_mtim.tv_sec);
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108 if(f->last_modified != s.st_mtime) {
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109 /* reload the file */
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110 printf("reload: %s\n", f->file.ptr);
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111 log_ereport(
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112 LOG_INFORM,
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113 "reload configuration file: %s",
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114 f->file.ptr);
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115 f->reload(f, conf);
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116 f->last_modified = s.st_mtime;
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117 if(reload) {
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118 *reload = 1;
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119 }
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120 }
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121 return 0;
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122 }
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123
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124 int cfgmgr_load_config() {
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125 int cfgreload = 0;
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126
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127 /* check config files */
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128 UcxMapIterator iter = ucx_map_iterator(config_files);
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129 ConfigFile *f;
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130 UCX_MAP_FOREACH(f, iter) {
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131 if(cfgmgr_reload_file(f, current_config, &cfgreload) == -1) {
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132 return -1;
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133 }
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134 }
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135
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136 struct stat s;
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137 if(stat("config/server.conf", &s) != 0) {
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138 perror("stat(\"config/server.conf\")");
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139 return -1;
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140 }
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141
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142 ServerConfiguration *config;
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143 if(cfgreload || !current_config || sc_last_modified != s.st_mtime) {
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144 printf("cfgmgr load server.conf\n");
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145 config = load_server_conf(
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146 current_config,
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147 "config/server.conf");
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148
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149 if(config == NULL) {
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150 fprintf(stderr, "Cannot load server.conf\n");
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151 return -1;
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152 }
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153
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154 sc_last_modified = s.st_mtime;
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155 } else if(0) {
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156 /* copy configuration */
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157 printf("cfgmgr copy server.conf\n");
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158
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159 /* TODO: copy */
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160 /*
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161 config = load_server_conf(
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162 current_config,
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163 "config/server.conf");
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164 */
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165 config = malloc(sizeof(ServerConfiguration));
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166 config->ref = 1;
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167 config->pool = pool_create();
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168 config->user = sstrdup_pool(config->pool, current_config->user);
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169 config->tmp = sstrdup_pool(config->pool, current_config->tmp);
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170
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171 // copy configuration
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172 config->host_vs = ucx_map_clone(
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173 current_config->host_vs,
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174 copy_vs,
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175 config->pool);
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176
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177 config->listeners = ucx_list_clone(
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178 current_config->listeners,
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179 (copy_func)copy_listener,
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180 config);
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181
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182 // TODO: we need to get the mime map from the configfile data
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183 config->mimetypes = current_config->mimetypes;
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184
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185 if(config == NULL) {
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186 fprintf(stderr, "Cannot load server.conf\n");
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187 return -1;
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188 }
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189
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190 } else {
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191 printf("no reconfig required!\n");
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192 config = current_config;
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193 }
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194
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195 ServerConfiguration *old_conf = NULL;
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196 if(current_config != config) {
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197 old_conf = current_config;
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198 }
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199 current_config = config;
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200 if(old_conf) {
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201 cfg_unref(old_conf);
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202 }
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203 return 0;
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204 }
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205
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206 ServerConfiguration *cfgmgr_get_server_config() {
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207 //cfg_ref(current_config);
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208 return current_config;
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209 }
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211

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