src/server/daemon/configmanager.c

Sat, 18 Aug 2012 11:39:34 +0200

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Sat, 18 Aug 2012 11:39:34 +0200
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using non blocking IO for request input

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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 2011 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 "configmanager.h"
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35
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36 ServerConfiguration *current_config = NULL;
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37 time_t sc_last_modified = 0;
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38
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39 UcxMap *config_files;
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40
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41 void init_configuration_manager() {
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42 /* init parser */
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43 init_server_config_parser();
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44
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45 config_files = ucx_map_new(16);
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46 }
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47
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48 void cfgmgr_attach_file(ConfigFile *cf) {
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49 ucx_map_sstr_put(config_files, cf->file, cf);
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50 }
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51
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52 ConfigFile* cfgmgr_get_file(sstr_t name) {
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53 return ucx_map_sstr_get(config_files, name);
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54 }
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55
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56 int cfgmgr_load_config() {
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57 int cfgreload = 0;
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58
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59 /* check config files */
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60 UcxMapIterator iter = ucx_map_iterator(config_files);
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61 UCX_MAP_FOREACH(ConfigFile*, f, config_files, iter) {
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62 struct stat s;
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63 if(stat(f->file.ptr, &s) != 0) {
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64 fprintf(
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65 stderr,
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66 "Error: Cannot get stat of file %s\n", f->file.ptr);
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67 perror("cfgmgr_load_config: stat");
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68 return -1;
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69 }
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70
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71 if(f->last_modified != s.st_mtim.tv_sec) {
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72 /* reload the file */
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73 f->reload(f, current_config);
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74 cfgreload = 1;
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75 }
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76 }
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77
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78 struct stat s;
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79 if(stat("conf/server.conf", &s) != 0) {
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80 perror("stat(\"conf/server.conf\")");
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81 return -1;
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82 }
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83
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84 ServerConfiguration *config;
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85 if(sc_last_modified != s.st_mtim.tv_sec) {
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86 config = load_server_conf(
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87 current_config,
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88 "conf/server.conf");
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89
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90 if(config == NULL) {
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91 fprintf(stderr, "Cannot load server.conf\n");
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92 return -1;
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93 }
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94 } else if(cfgreload) {
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95 /* copy configuration */
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96
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97 /* TODO: copy */
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98 config = load_server_conf(
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99 current_config,
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100 "conf/server.conf");
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101
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102 if(config == NULL) {
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103 fprintf(stderr, "Cannot load server.conf\n");
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104 return -1;
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105 }
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106
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107 } else {
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108 config = current_config;
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109 }
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111
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112 current_config = config;
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113 return 0;
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114 }
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115
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116 ServerConfiguration *cfgmgr_get_server_config() {
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117 return current_config;
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118 }
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120

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