annotate src/lib-dict/dict-client.c @ 9174:eed86bcc33aa HEAD

dict proxy: Use base_dir as the default dict-server location.
author Timo Sirainen <tss@iki.fi>
date Sat, 27 Jun 2009 22:08:33 -0400
parents a68ed51b681d
children a1b92a251bb9
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rev   line source
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1 /* Copyright (c) 2005-2009 Dovecot authors, see the included COPYING file */
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2
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3 #include "lib.h"
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4 #include "str.h"
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5 #include "network.h"
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6 #include "istream.h"
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7 #include "ostream.h"
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8 #include "dict-private.h"
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9 #include "dict-client.h"
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10
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11 #include <unistd.h>
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12 #include <fcntl.h>
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13
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14 struct client_dict {
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15 struct dict dict;
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16
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17 pool_t pool;
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18 int fd;
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19 const char *uri;
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20 const char *username;
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21 const char *path;
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aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
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22 enum dict_data_type value_type;
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23
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6950bb5e7921 Don't try to reconnect more often than once/sec.
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24 time_t last_connect_try;
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25 struct istream *input;
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26 struct ostream *output;
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27
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28 unsigned int connect_counter;
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29 unsigned int transaction_id_counter;
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30
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31 unsigned int in_iteration:1;
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32 unsigned int handshaked:1;
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33 };
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34
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35 struct client_dict_iterate_context {
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36 struct dict_iterate_context ctx;
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37
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38 pool_t pool;
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39 bool failed;
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40 };
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41
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42 struct client_dict_transaction_context {
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43 struct dict_transaction_context ctx;
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44
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45 unsigned int id;
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46 unsigned int connect_counter;
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47
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48 unsigned int failed:1;
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49 unsigned int sent_begin:1;
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50 };
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51
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52 static int client_dict_connect(struct client_dict *dict);
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53 static void client_dict_disconnect(struct client_dict *dict);
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54
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55 const char *dict_client_escape(const char *src)
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56 {
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57 const char *p;
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58 string_t *dest;
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59
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60 /* first do a quick lookup to see if there's anything to escape.
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61 probably not. */
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62 for (p = src; *p != '\0'; p++) {
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63 if (*p == '\t' || *p == '\n' || *p == '\001')
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64 break;
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65 }
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66
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67 if (*p == '\0')
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68 return src;
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69
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70 dest = t_str_new(256);
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71 str_append_n(dest, src, p - src);
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72
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73 for (; *p != '\0'; p++) {
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74 switch (*p) {
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75 case '\t':
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76 str_append_c(dest, '\001');
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77 str_append_c(dest, 't');
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78 break;
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79 case '\n':
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80 str_append_c(dest, '\001');
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81 str_append_c(dest, 'n');
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82 break;
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83 case '\001':
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84 str_append_c(dest, '\001');
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85 str_append_c(dest, '1');
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86 break;
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87 default:
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88 str_append_c(dest, *p);
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89 break;
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90 }
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91 }
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92 return str_c(dest);
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93 }
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94
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95 const char *dict_client_unescape(const char *src)
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96 {
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97 const char *p;
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98 string_t *dest;
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99
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100 /* first do a quick lookup to see if there's anything to unescape.
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101 probably not. */
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102 for (p = src; *p != '\0'; p++) {
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103 if (*p == '\001')
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104 break;
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105 }
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106
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107 if (*p == '\0')
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108 return src;
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109
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110 dest = t_str_new(256);
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111 str_append_n(dest, src, p - src);
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112 for (; *p != '\0'; p++) {
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113 if (*p != '\001')
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114 str_append_c(dest, *p);
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115 else if (p[1] != '\0') {
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116 p++;
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117 switch (*p) {
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118 case '1':
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119 str_append_c(dest, '\001');
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120 break;
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121 case 't':
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122 str_append_c(dest, '\t');
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123 break;
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124 case 'n':
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125 str_append_c(dest, '\n');
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126 break;
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127 }
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128 }
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129 }
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130 return str_c(dest);
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131 }
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132
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133 static int client_dict_send_query(struct client_dict *dict, const char *query)
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134 {
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135 if (dict->output == NULL) {
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136 /* not connected currently */
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137 if (client_dict_connect(dict) < 0)
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138 return -1;
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139 }
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140
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141 if (o_stream_send_str(dict->output, query) < 0 ||
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142 o_stream_flush(dict->output) < 0) {
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143 /* Send failed */
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144 if (!dict->handshaked) {
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145 /* we're trying to send hello, don't try to reconnect */
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146 return -1;
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147 }
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148
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149 /* Reconnect and try again. */
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150 client_dict_disconnect(dict);
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151 if (client_dict_connect(dict) < 0)
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152 return -1;
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153
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154 if (o_stream_send_str(dict->output, query) < 0 ||
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155 o_stream_flush(dict->output) < 0) {
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156 i_error("write(%s) failed: %m", dict->path);
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157 return -1;
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158 }
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159 }
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160 return 0;
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161 }
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162
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163 static int
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164 client_dict_transaction_send_begin(struct client_dict_transaction_context *ctx)
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165 {
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166 struct client_dict *dict = (struct client_dict *)ctx->ctx.dict;
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167
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168 if (ctx->failed)
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169 return -1;
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parents: 4385
diff changeset
170
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
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parents: 7086
diff changeset
171 T_BEGIN {
6940
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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parents: 6525
diff changeset
172 const char *query;
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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parents: 6525
diff changeset
173
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
174 query = t_strdup_printf("%c%u\n", DICT_PROTOCOL_CMD_BEGIN,
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
175 ctx->id);
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
176 if (client_dict_send_query(dict, query) < 0)
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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diff changeset
177 ctx->failed = TRUE;
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
178 else
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
179 ctx->connect_counter = dict->connect_counter;
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
180 } T_END;
4512
b5d4c1e9a492 Delay sending the transaction begin command to server until the first
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parents: 4385
diff changeset
181
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parents: 4385
diff changeset
182 return ctx->failed ? -1 : 0;
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Timo Sirainen <tss@iki.fi>
parents: 4385
diff changeset
183 }
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parents: 4385
diff changeset
184
b5d4c1e9a492 Delay sending the transaction begin command to server until the first
Timo Sirainen <tss@iki.fi>
parents: 4385
diff changeset
185 static int
4368
51a1d0fbbc94 Fixes to dict proxy
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parents: 4367
diff changeset
186 client_dict_send_transaction_query(struct client_dict_transaction_context *ctx,
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diff changeset
187 const char *query)
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Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
188 {
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diff changeset
189 struct client_dict *dict = (struct client_dict *)ctx->ctx.dict;
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diff changeset
190
4512
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diff changeset
191 if (!ctx->sent_begin) {
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parents: 4385
diff changeset
192 if (client_dict_transaction_send_begin(ctx) < 0)
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diff changeset
193 return -1;
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diff changeset
194 ctx->sent_begin = TRUE;
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diff changeset
195 }
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diff changeset
196
4385
Timo Sirainen <tss@iki.fi>
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diff changeset
197 if (ctx->connect_counter != dict->connect_counter || ctx->failed)
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diff changeset
198 return -1;
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199
Timo Sirainen <tss@iki.fi>
parents: 4368
diff changeset
200 if (dict->output == NULL) {
4512
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diff changeset
201 /* not connected, this'll fail */
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202 return -1;
4385
Timo Sirainen <tss@iki.fi>
parents: 4368
diff changeset
203 }
Timo Sirainen <tss@iki.fi>
parents: 4368
diff changeset
204
4368
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Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
205 if (o_stream_send_str(dict->output, query) < 0 ||
51a1d0fbbc94 Fixes to dict proxy
Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
206 o_stream_flush(dict->output) < 0) {
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parents: 4367
diff changeset
207 /* Send failed. Our transactions have died, so don't even try
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diff changeset
208 to re-send the command */
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Timo Sirainen <tss@iki.fi>
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diff changeset
209 ctx->failed = TRUE;
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Timo Sirainen <tss@iki.fi>
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diff changeset
210 client_dict_disconnect(dict);
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Timo Sirainen <tss@iki.fi>
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diff changeset
211 return -1;
51a1d0fbbc94 Fixes to dict proxy
Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
212 }
51a1d0fbbc94 Fixes to dict proxy
Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
213 return 0;
51a1d0fbbc94 Fixes to dict proxy
Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
214 }
51a1d0fbbc94 Fixes to dict proxy
Timo Sirainen <tss@iki.fi>
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diff changeset
215
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diff changeset
216 static char *client_dict_read_line(struct client_dict *dict)
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parents:
diff changeset
217 {
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
218 char *line;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
219 int ret;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
220
4519
4be4c887deb7 dict proxy: Dictionary iteration was broken.
Timo Sirainen <tss@iki.fi>
parents: 4517
diff changeset
221 line = i_stream_next_line(dict->input);
4be4c887deb7 dict proxy: Dictionary iteration was broken.
Timo Sirainen <tss@iki.fi>
parents: 4517
diff changeset
222 if (line != NULL)
4be4c887deb7 dict proxy: Dictionary iteration was broken.
Timo Sirainen <tss@iki.fi>
parents: 4517
diff changeset
223 return line;
4be4c887deb7 dict proxy: Dictionary iteration was broken.
Timo Sirainen <tss@iki.fi>
parents: 4517
diff changeset
224
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diff changeset
225 while ((ret = i_stream_read(dict->input)) > 0) {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
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diff changeset
226 line = i_stream_next_line(dict->input);
8664
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
227 if (line != NULL)
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
228 return line;
3793
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parents:
diff changeset
229 }
6525
ae684f2e0534 Error handling fix
Timo Sirainen <tss@iki.fi>
parents: 6429
diff changeset
230 i_assert(ret < 0);
3793
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
231
6525
ae684f2e0534 Error handling fix
Timo Sirainen <tss@iki.fi>
parents: 6429
diff changeset
232 if (ret == -2)
ae684f2e0534 Error handling fix
Timo Sirainen <tss@iki.fi>
parents: 6429
diff changeset
233 i_error("read(%s) returned too much data", dict->path);
7988
e069e4c221e1 dict-proxy: Fix error message if remote disconnects.
Timo Sirainen <tss@iki.fi>
parents: 7969
diff changeset
234 else if (dict->input->stream_errno == 0)
e069e4c221e1 dict-proxy: Fix error message if remote disconnects.
Timo Sirainen <tss@iki.fi>
parents: 7969
diff changeset
235 i_error("read(%s) failed: Remote disconnected", dict->path);
7418
a18f7f0dcff5 Reverted last error handling change, it can't happen after all.
Timo Sirainen <tss@iki.fi>
parents: 7417
diff changeset
236 else
7417
e8df909de851 Error handling fix
Timo Sirainen <tss@iki.fi>
parents: 7226
diff changeset
237 i_error("read(%s) failed: %m", dict->path);
3793
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
238 return NULL;
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
239 }
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parents:
diff changeset
240
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
241 static int client_dict_connect(struct client_dict *dict)
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
242 {
0b3f3323e460 Forgot to add
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parents:
diff changeset
243 const char *query;
0b3f3323e460 Forgot to add
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parents:
diff changeset
244
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diff changeset
245 i_assert(dict->fd == -1);
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
246
7008
6950bb5e7921 Don't try to reconnect more often than once/sec.
Timo Sirainen <tss@iki.fi>
parents: 7007
diff changeset
247 if (dict->last_connect_try == ioloop_time) {
6950bb5e7921 Don't try to reconnect more often than once/sec.
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parents: 7007
diff changeset
248 /* Try again later */
6950bb5e7921 Don't try to reconnect more often than once/sec.
Timo Sirainen <tss@iki.fi>
parents: 7007
diff changeset
249 return -1;
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Timo Sirainen <tss@iki.fi>
parents: 7007
diff changeset
250 }
6950bb5e7921 Don't try to reconnect more often than once/sec.
Timo Sirainen <tss@iki.fi>
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diff changeset
251 dict->last_connect_try = ioloop_time;
6950bb5e7921 Don't try to reconnect more often than once/sec.
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diff changeset
252
3793
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diff changeset
253 dict->fd = net_connect_unix(dict->path);
0b3f3323e460 Forgot to add
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parents:
diff changeset
254 if (dict->fd == -1) {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
255 i_error("net_connect_unix(%s) failed: %m", dict->path);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
256 return -1;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
257 }
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
258
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
259 /* Dictionary lookups are blocking */
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
260 net_set_nonblock(dict->fd, FALSE);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
261
6162
896cc473c1f0 Renamed i_stream_create_file() to i_stream_create_fd().
Timo Sirainen <tss@iki.fi>
parents: 6161
diff changeset
262 dict->input = i_stream_create_fd(dict->fd, (size_t)-1, FALSE);
7969
2cd775b45b0c Set dict proxy istream nonblocking so EINTR (^C) won't crash.
Timo Sirainen <tss@iki.fi>
parents: 7418
diff changeset
263 dict->input->blocking = TRUE;
6161
c62f7ee79446 Split o_stream_create_file() to _create_fd() and _create_fd_file().
Timo Sirainen <tss@iki.fi>
parents: 6142
diff changeset
264 dict->output = o_stream_create_fd(dict->fd, 4096, FALSE);
3793
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
265 dict->transaction_id_counter = 0;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
266
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
267 query = t_strdup_printf("%c%u\t%u\t%d\t%s\t%s\n",
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
268 DICT_PROTOCOL_CMD_HELLO,
3793
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
269 DICT_CLIENT_PROTOCOL_MAJOR_VERSION,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
270 DICT_CLIENT_PROTOCOL_MINOR_VERSION,
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
271 dict->value_type, dict->username, dict->uri);
3793
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
272 if (client_dict_send_query(dict, query) < 0) {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
273 client_dict_disconnect(dict);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
274 return -1;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
275 }
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
276
0b3f3323e460 Forgot to add
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parents:
diff changeset
277 dict->handshaked = TRUE;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
278 return 0;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
279 }
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
280
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
281 static void client_dict_disconnect(struct client_dict *dict)
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
282 {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
283 dict->connect_counter++;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
284 dict->handshaked = FALSE;
0b3f3323e460 Forgot to add
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parents:
diff changeset
285
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3863
diff changeset
286 if (dict->input != NULL)
4070
71b8faa84ec6 Added i_stream_destroy() and o_stream_destroy() and used them instead of
Timo Sirainen <tss@iki.fi>
parents: 3990
diff changeset
287 i_stream_destroy(&dict->input);
3879
928229f8b3e6 deinit, unref, destroy, close, free, etc. functions now take a pointer to
Timo Sirainen <tss@iki.fi>
parents: 3863
diff changeset
288 if (dict->output != NULL)
4070
71b8faa84ec6 Added i_stream_destroy() and o_stream_destroy() and used them instead of
Timo Sirainen <tss@iki.fi>
parents: 3990
diff changeset
289 o_stream_destroy(&dict->output);
3793
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parents:
diff changeset
290
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
291 if (dict->fd != -1) {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
292 if (close(dict->fd) < 0)
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
293 i_error("close(%s) failed: %m", dict->path);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
294 dict->fd = -1;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
295 }
0b3f3323e460 Forgot to add
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parents:
diff changeset
296 }
0b3f3323e460 Forgot to add
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parents:
diff changeset
297
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
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parents: 4512
diff changeset
298 static struct dict *
4517
e661182eab75 Berkeley DB dict support is now enabled only when using --with-db configure option.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4516
diff changeset
299 client_dict_init(struct dict *driver, const char *uri,
9174
eed86bcc33aa dict proxy: Use base_dir as the default dict-server location.
Timo Sirainen <tss@iki.fi>
parents: 8683
diff changeset
300 enum dict_data_type value_type, const char *username,
eed86bcc33aa dict proxy: Use base_dir as the default dict-server location.
Timo Sirainen <tss@iki.fi>
parents: 8683
diff changeset
301 const char *base_dir)
3793
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
302 {
0b3f3323e460 Forgot to add
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parents:
diff changeset
303 struct client_dict *dict;
3967
6fabe878c46d Dictionary takes now a username parameter, which is used for private
Timo Sirainen <tss@iki.fi>
parents: 3879
diff changeset
304 const char *dest_uri;
3793
0b3f3323e460 Forgot to add
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parents:
diff changeset
305 pool_t pool;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
306
3967
6fabe878c46d Dictionary takes now a username parameter, which is used for private
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parents: 3879
diff changeset
307 /* uri = [<path>] ":" <uri> */
3793
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
308 dest_uri = strchr(uri, ':');
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
309 if (dest_uri == NULL) {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
310 i_error("dict-client: Invalid URI: %s", uri);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
311 return NULL;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
312 }
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
313
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
314 pool = pool_alloconly_create("client dict", 1024);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
315 dict = p_new(pool, struct client_dict, 1);
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
316 dict->pool = pool;
4517
e661182eab75 Berkeley DB dict support is now enabled only when using --with-db configure option.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4516
diff changeset
317 dict->dict = *driver;
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
318 dict->value_type = value_type;
3967
6fabe878c46d Dictionary takes now a username parameter, which is used for private
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diff changeset
319 dict->username = p_strdup(pool, username);
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320
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321 dict->fd = -1;
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322
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diff changeset
323 if (*uri != ':') {
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324 /* path given */
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325 dict->path = p_strdup_until(pool, uri, dest_uri);
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326 } else {
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eed86bcc33aa dict proxy: Use base_dir as the default dict-server location.
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diff changeset
327 dict->path = p_strconcat(pool, base_dir,
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diff changeset
328 "/"DEFAULT_DICT_SERVER_SOCKET_FNAME, NULL);
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329 }
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330 dict->uri = p_strdup(pool, dest_uri + 1);
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331 return &dict->dict;
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332 }
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333
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334 static void client_dict_deinit(struct dict *_dict)
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335 {
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336 struct client_dict *dict = (struct client_dict *)_dict;
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337
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338 client_dict_disconnect(dict);
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339 pool_unref(&dict->pool);
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340 }
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341
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342 static int client_dict_lookup(struct dict *_dict, pool_t pool,
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343 const char *key, const char **value_r)
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344 {
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345 struct client_dict *dict = (struct client_dict *)_dict;
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346 const char *line;
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414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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347 int ret;
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348
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349 T_BEGIN {
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350 const char *query;
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351
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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352 query = t_strdup_printf("%c%s\n", DICT_PROTOCOL_CMD_LOOKUP,
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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353 dict_client_escape(key));
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354 ret = client_dict_send_query(dict, query);
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355 } T_END;
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356 if (ret < 0)
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357 return -1;
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358
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359 /* read reply */
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360 line = client_dict_read_line(dict);
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361 if (line == NULL)
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362 return -1;
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363
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364 if (*line == DICT_PROTOCOL_REPLY_OK) {
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365 *value_r = p_strdup(pool, dict_client_unescape(line + 1));
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366 return 1;
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367 } else {
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368 *value_r = NULL;
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369 return *line == DICT_PROTOCOL_REPLY_NOTFOUND ? 0 : -1;
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370 }
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371 }
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372
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373 static struct dict_iterate_context *
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
374 client_dict_iterate_init(struct dict *_dict, const char *path,
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
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diff changeset
375 enum dict_iterate_flags flags)
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376 {
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377 struct client_dict *dict = (struct client_dict *)_dict;
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378 struct client_dict_iterate_context *ctx;
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379
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380 if (dict->in_iteration)
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381 i_panic("dict-client: Only one iteration supported");
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382 dict->in_iteration = TRUE;
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383
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384 ctx = i_new(struct client_dict_iterate_context, 1);
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385 ctx->ctx.dict = _dict;
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386 ctx->pool = pool_alloconly_create("client dict iteration", 512);
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387
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
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diff changeset
388 T_BEGIN {
6940
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
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389 const char *query;
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390
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diff changeset
391 query = t_strdup_printf("%c%d\t%s\n", DICT_PROTOCOL_CMD_ITERATE,
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diff changeset
392 flags, dict_client_escape(path));
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parents: 6525
diff changeset
393 if (client_dict_send_query(dict, query) < 0)
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394 ctx->failed = TRUE;
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395 } T_END;
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396 return &ctx->ctx;
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397 }
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diff changeset
398
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diff changeset
399 static int client_dict_iterate(struct dict_iterate_context *_ctx,
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400 const char **key_r, const char **value_r)
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diff changeset
401 {
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diff changeset
402 struct client_dict_iterate_context *ctx =
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diff changeset
403 (struct client_dict_iterate_context *)_ctx;
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diff changeset
404 struct client_dict *dict = (struct client_dict *)_ctx->dict;
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diff changeset
405 char *line, *value;
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parents:
diff changeset
406
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diff changeset
407 if (ctx->failed)
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diff changeset
408 return -1;
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parents:
diff changeset
409
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parents:
diff changeset
410 /* read next reply */
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diff changeset
411 line = client_dict_read_line(dict);
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parents:
diff changeset
412 if (line == NULL)
0b3f3323e460 Forgot to add
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parents:
diff changeset
413 return -1;
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parents:
diff changeset
414
0b3f3323e460 Forgot to add
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parents:
diff changeset
415 if (*line == '\0') {
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parents:
diff changeset
416 /* end of iteration */
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parents:
diff changeset
417 return 0;
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parents:
diff changeset
418 }
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diff changeset
419
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diff changeset
420 /* line contains key \t value */
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parents:
diff changeset
421 p_clear(ctx->pool);
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parents:
diff changeset
422
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diff changeset
423 value = strchr(line, '\t');
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diff changeset
424 if (value == NULL) {
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parents:
diff changeset
425 /* broken protocol */
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diff changeset
426 i_error("dict client (%s) sent broken reply", dict->path);
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parents:
diff changeset
427 return -1;
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parents:
diff changeset
428 }
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diff changeset
429 *value++ = '\0';
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parents:
diff changeset
430
0b3f3323e460 Forgot to add
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diff changeset
431 *key_r = p_strdup(ctx->pool, dict_client_unescape(line));
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diff changeset
432 *value_r = p_strdup(ctx->pool, dict_client_unescape(value));
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parents:
diff changeset
433 return 1;
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parents:
diff changeset
434 }
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parents:
diff changeset
435
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parents:
diff changeset
436 static void client_dict_iterate_deinit(struct dict_iterate_context *_ctx)
0b3f3323e460 Forgot to add
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parents:
diff changeset
437 {
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diff changeset
438 struct client_dict *dict = (struct client_dict *)_ctx->dict;
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parents:
diff changeset
439 struct client_dict_iterate_context *ctx =
0b3f3323e460 Forgot to add
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diff changeset
440 (struct client_dict_iterate_context *)_ctx;
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parents:
diff changeset
441
6428
7cad076906eb pool_unref() now takes ** pointer.
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parents: 6162
diff changeset
442 pool_unref(&ctx->pool);
3793
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parents:
diff changeset
443 i_free(ctx);
8105
ad9ad222729c Calling dict_iterate_init() multiple times for a dict assert-crashed.
Timo Sirainen <tss@iki.fi>
parents: 7988
diff changeset
444 dict->in_iteration = FALSE;
3793
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parents:
diff changeset
445 }
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diff changeset
446
0b3f3323e460 Forgot to add
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parents:
diff changeset
447 static struct dict_transaction_context *
0b3f3323e460 Forgot to add
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parents:
diff changeset
448 client_dict_transaction_init(struct dict *_dict)
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parents:
diff changeset
449 {
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diff changeset
450 struct client_dict *dict = (struct client_dict *)_dict;
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parents:
diff changeset
451 struct client_dict_transaction_context *ctx;
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parents:
diff changeset
452
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diff changeset
453 ctx = i_new(struct client_dict_transaction_context, 1);
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parents:
diff changeset
454 ctx->ctx.dict = _dict;
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parents:
diff changeset
455 ctx->id = ++dict->transaction_id_counter;
4368
51a1d0fbbc94 Fixes to dict proxy
Timo Sirainen <tss@iki.fi>
parents: 4367
diff changeset
456
3793
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parents:
diff changeset
457 return &ctx->ctx;
0b3f3323e460 Forgot to add
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parents:
diff changeset
458 }
0b3f3323e460 Forgot to add
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parents:
diff changeset
459
8660
d8a56ea9f408 Added dict_transaction_commit_async().
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
460 static int client_dict_transaction_commit(struct dict_transaction_context *_ctx,
d8a56ea9f408 Added dict_transaction_commit_async().
Timo Sirainen <tss@iki.fi>
parents: 8590
diff changeset
461 bool async)
3793
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parents:
diff changeset
462 {
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parents:
diff changeset
463 struct client_dict_transaction_context *ctx =
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parents:
diff changeset
464 (struct client_dict_transaction_context *)_ctx;
0b3f3323e460 Forgot to add
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parents:
diff changeset
465 struct client_dict *dict = (struct client_dict *)_ctx->dict;
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parents:
diff changeset
466 int ret = ctx->failed ? -1 : 0;
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parents:
diff changeset
467
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
468 if (ctx->sent_begin) T_BEGIN {
6940
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
469 const char *query, *line;
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
470
8664
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
471 query = t_strdup_printf("%c%u\n", ctx->failed ?
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
472 DICT_PROTOCOL_CMD_ROLLBACK :
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
473 (!async ? DICT_PROTOCOL_CMD_COMMIT :
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
474 DICT_PROTOCOL_CMD_COMMIT_ASYNC),
446775a31754 dict proxy: Handle async commits better.
Timo Sirainen <tss@iki.fi>
parents: 8660
diff changeset
475 ctx->id);
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parents: 4385
diff changeset
476 if (client_dict_send_transaction_query(ctx, query) < 0)
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diff changeset
477 ret = -1;
8683
a68ed51b681d dict proxy client: Don't hang when doing an async commit.
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478 else if (ret < 0 || async) {
a68ed51b681d dict proxy client: Don't hang when doing an async commit.
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diff changeset
479 /* no reply */
8660
d8a56ea9f408 Added dict_transaction_commit_async().
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diff changeset
480 } else {
8683
a68ed51b681d dict proxy client: Don't hang when doing an async commit.
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481 /* sync commit, read reply */
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482 line = client_dict_read_line(dict);
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483 if (line == NULL || *line != DICT_PROTOCOL_REPLY_OK)
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484 ret = -1;
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485 }
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486 } T_END;
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487
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488 i_free(ctx);
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489 return ret;
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Timo Sirainen <tss@iki.fi>
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490 }
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491
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492 static void
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493 client_dict_transaction_rollback(struct dict_transaction_context *_ctx)
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494 {
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495 struct client_dict_transaction_context *ctx =
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496 (struct client_dict_transaction_context *)_ctx;
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497
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498 if (ctx->sent_begin) T_BEGIN {
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499 const char *query;
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500
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501 query = t_strdup_printf("%c%u\n", DICT_PROTOCOL_CMD_ROLLBACK,
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Timo Sirainen <tss@iki.fi>
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502 ctx->id);
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503 (void)client_dict_send_transaction_query(ctx, query);
7226
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diff changeset
504 } T_END;
4385
Timo Sirainen <tss@iki.fi>
parents: 4368
diff changeset
505
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506 i_free(ctx);
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parents:
diff changeset
507 }
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diff changeset
508
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Timo Sirainen <tss@iki.fi>
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509 static void client_dict_set(struct dict_transaction_context *_ctx,
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510 const char *key, const char *value)
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Timo Sirainen <tss@iki.fi>
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511 {
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512 struct client_dict_transaction_context *ctx =
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513 (struct client_dict_transaction_context *)_ctx;
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parents: 6525
diff changeset
514
7226
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Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
515 T_BEGIN {
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diff changeset
516 const char *query;
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
517
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parents: 6525
diff changeset
518 query = t_strdup_printf("%c%u\t%s\t%s\n",
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Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
519 DICT_PROTOCOL_CMD_SET, ctx->id,
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
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diff changeset
520 dict_client_escape(key),
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
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diff changeset
521 dict_client_escape(value));
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
522 (void)client_dict_send_transaction_query(ctx, query);
7226
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Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
523 } T_END;
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diff changeset
524 }
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
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diff changeset
525
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
526 static void client_dict_unset(struct dict_transaction_context *_ctx,
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
527 const char *key)
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
528 {
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
529 struct client_dict_transaction_context *ctx =
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
530 (struct client_dict_transaction_context *)_ctx;
6940
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Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
531
7226
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Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
532 T_BEGIN {
6940
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Timo Sirainen <tss@iki.fi>
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diff changeset
533 const char *query;
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
534
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parents: 6525
diff changeset
535 query = t_strdup_printf("%c%u\t%s\n",
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Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
536 DICT_PROTOCOL_CMD_UNSET, ctx->id,
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
537 dict_client_escape(key));
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
538 (void)client_dict_send_transaction_query(ctx, query);
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
539 } T_END;
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Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
540 }
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
541
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
542 static void client_dict_atomic_inc(struct dict_transaction_context *_ctx,
3990
e2e6919c6c4d LF wasn't sent at the end of all commands.
Timo Sirainen <tss@iki.fi>
parents: 3967
diff changeset
543 const char *key, long long diff)
3793
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
544 {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
545 struct client_dict_transaction_context *ctx =
0b3f3323e460 Forgot to add
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parents:
diff changeset
546 (struct client_dict_transaction_context *)_ctx;
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
547
7226
e6693a0ec8e1 Renamed T_FRAME_BEGIN/END to T_BEGIN/END. Removed T_FRAME() macro and
Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
548 T_BEGIN {
6940
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Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
549 const char *query;
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
550 query = t_strdup_printf("%c%u\t%s\t%lld\n",
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
551 DICT_PROTOCOL_CMD_ATOMIC_INC,
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
552 ctx->id, dict_client_escape(key), diff);
414c9d631a81 Replaced t_push/t_pop calls with T_FRAME*() macros.
Timo Sirainen <tss@iki.fi>
parents: 6525
diff changeset
553 (void)client_dict_send_transaction_query(ctx, query);
7226
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Timo Sirainen <tss@iki.fi>
parents: 7086
diff changeset
554 } T_END;
3793
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parents:
diff changeset
555 }
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
556
4517
e661182eab75 Berkeley DB dict support is now enabled only when using --with-db configure option.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4516
diff changeset
557 struct dict dict_driver_client = {
3793
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
558 MEMBER(name) "proxy",
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
559
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
560 {
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
561 client_dict_init,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
562 client_dict_deinit,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
563 client_dict_lookup,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
564 client_dict_iterate_init,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
565 client_dict_iterate,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
566 client_dict_iterate_deinit,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
567 client_dict_transaction_init,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
568 client_dict_transaction_commit,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
569 client_dict_transaction_rollback,
0b3f3323e460 Forgot to add
Timo Sirainen <tss@iki.fi>
parents:
diff changeset
570 client_dict_set,
4516
aa2f73a4df26 Dictionary changes: Added support for defining value's type. Key is still always a string. Added support for sorting the iteration replies. Added dict_unset(). Added Berkeley DB support. Most of the code written by Tianyan Liu.
Timo Sirainen <timo.sirainen@movial.fi>
parents: 4512
diff changeset
571 client_dict_unset,
3793
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
572 client_dict_atomic_inc
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
573 }
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Timo Sirainen <tss@iki.fi>
parents:
diff changeset
574 };