Mercurial > dovecot > core-2.2

annotate src/indexer/indexer.c @ 22656:1789bf2a1e01

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director: Make sure HOST-RESET-USERS isn't used with max_moving_users=0 The reset command would just hang in that case. doveadm would never have sent this, so this is just an extra sanity check.
author Timo Sirainen <timo.sirainen@dovecot.fi>
date Sun, 05 Nov 2017 23:51:56 +0200
parents e74e1269959f
children cb108f786fb4
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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2e2563132d5f Updated copyright notices to include the year 2017.
Stephan Bosch <stephan.bosch@dovecot.fi>
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1 /* Copyright (c) 2011-2017 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 "ioloop.h"
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5 #include "restrict-access.h"
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6 #include "process-title.h"
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7 #include "master-service.h"
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8 #include "master-service-settings.h"
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9 #include "indexer-client.h"
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10 #include "indexer-queue.h"
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11 #include "worker-pool.h"
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12 #include "worker-connection.h"
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13
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14 struct worker_request {
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15 struct worker_connection *conn;
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16 struct indexer_request *request;
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17 };
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18
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19 static const struct master_service_settings *set;
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20 static struct indexer_queue *queue;
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21 static struct worker_pool *worker_pool;
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22 static struct timeout *to_send_more;
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23
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24 void indexer_refresh_proctitle(void)
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25 {
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26 if (!set->verbose_proctitle)
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27 return;
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28
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29 process_title_set(t_strdup_printf("[%u clients, %u requests]",
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30 indexer_clients_get_count(),
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31 indexer_queue_count(queue)));
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32 }
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33
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34 static bool idle_die(void)
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35 {
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36 return indexer_queue_is_empty(queue) &&
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37 !worker_pool_have_busy_connections(worker_pool);
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38 }
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39
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40 static void client_connected(struct master_service_connection *conn)
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41 {
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42 master_service_client_connection_accept(conn);
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43 (void)indexer_client_create(conn->fd, queue);
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44 }
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45
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46 static void worker_send_request(struct worker_connection *conn,
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47 struct indexer_request *request)
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48 {
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49 struct worker_request *wrequest;
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50
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51 wrequest = i_new(struct worker_request, 1);
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52 wrequest->conn = conn;
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53 wrequest->request = request;
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54
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55 indexer_queue_request_work(request);
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56 worker_connection_request(conn, request, wrequest);
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57 }
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58
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59 static void queue_try_send_more(struct indexer_queue *queue)
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60 {
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61 struct worker_connection *conn;
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62 struct indexer_request *request;
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63
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64 if (to_send_more != NULL)
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65 timeout_remove(&to_send_more);
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66
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67 while ((request = indexer_queue_request_peek(queue)) != NULL) {
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68 conn = worker_pool_find_username_connection(worker_pool,
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69 request->username);
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70 if (conn != NULL) {
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71 /* there is already a worker handling this user.
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72 it must be the one doing the indexing. use the same
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73 connection for sending this next request. */
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74 } else {
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75 /* try to find an empty worker */
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76 if (!worker_pool_get_connection(worker_pool, &conn))
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77 break;
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78 }
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79 indexer_queue_request_remove(queue);
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80 worker_send_request(conn, request);
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81 }
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82 }
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83
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84 static void queue_listen_callback(struct indexer_queue *queue)
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85 {
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86 queue_try_send_more(queue);
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87 }
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88
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89 static void worker_status_callback(int percentage, void *context)
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90 {
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91 struct worker_request *request = context;
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92
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93 if (percentage >= 0 && percentage < 100) {
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94 indexer_queue_request_status(queue, request->request,
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95 percentage);
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96 return;
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97 }
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98
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99 indexer_queue_request_finish(queue, &request->request,
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100 percentage == 100);
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101 if (worker_pool != NULL) /* not in deinit */
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102 worker_pool_release_connection(worker_pool, request->conn);
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103 i_free(request);
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104
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105 /* if this was the last request for the connection, we can send more
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106 through it. delay it a bit, since we may be coming here from
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107 worker_connection_disconnect() and we want to finish it up. */
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108 if (to_send_more == NULL)
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109 to_send_more = timeout_add_short(0, queue_try_send_more, queue);
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110 }
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111
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112 int main(int argc, char *argv[])
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113 {
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114 const char *error;
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115
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116 master_service = master_service_init("indexer", 0, &argc, &argv, "");
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117 if (master_getopt(master_service) > 0)
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118 return FATAL_DEFAULT;
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119
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120 if (master_service_settings_read_simple(master_service, NULL,
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121 &error) < 0)
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122 i_fatal("Error reading configuration: %s", error);
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123 set = master_service_settings_get(master_service);
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124
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125 master_service_init_log(master_service, "indexer: ");
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parents:
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126 restrict_access_by_env(NULL, FALSE);
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127 restrict_access_allow_coredumps(TRUE);
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128 master_service_set_idle_die_callback(master_service, idle_die);
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129
13206
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130 queue = indexer_queue_init(indexer_client_status_callback);
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131 indexer_queue_set_listen_callback(queue, queue_listen_callback);
13084
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132 worker_pool = worker_pool_init("indexer-worker",
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133 worker_status_callback);
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754d244b8249 Call master_service_init_finish() only after all of the initialization is done.
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134 master_service_init_finish(master_service);
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parents:
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135
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136 master_service_run(master_service, client_connected);
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parents:
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137
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138 indexer_queue_cancel_all(queue);
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139 indexer_clients_destroy_all();
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140 worker_pool_deinit(&worker_pool);
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141 indexer_queue_deinit(&queue);
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142 if (to_send_more != NULL)
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143 timeout_remove(&to_send_more);
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144
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145 master_service_deinit(&master_service);
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146 return 0;
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147 }