Mercurial > dovecot > core-2.2

annotate src/stats/client.h @ 22715:20415dd0b85a

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dsync: Add per-mailbox sync lock that is always used. Both importing and exporting gets the lock before they even sync the mailbox. The lock is kept until the import/export finishes. This guarantees that no matter how dsync is run, two dsyncs can't be working on the same mailbox at the same time. This lock is in addition to the optional per-user lock enabled by the -l parameter. If the -l parameter is used, the same lock timeout is used for the per-mailbox lock. Otherwise 30s timeout is used. This should help to avoid email duplication when replication is enabled for public namespaces, and maybe in some other rare situations as well.
author Timo Sirainen <timo.sirainen@dovecot.fi>
date Thu, 28 Dec 2017 14:10:23 +0200
parents c51fbe64eae1
children
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1 #ifndef CLIENT_H
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2 #define CLIENT_H
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3
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4 struct client {
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5 struct client *prev, *next;
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6
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7 int fd;
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8 struct io *io;
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9 struct istream *input;
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10 struct ostream *output;
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11 struct timeout *to_pending;
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12
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13 pool_t cmd_pool;
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14 struct client_export_cmd *cmd_export;
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15 int (*cmd_more)(struct client *client);
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16
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17 /* command iterators. while non-NULL, they've increased the
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18 struct's refcount so it won't be deleted during iteration */
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19 unsigned int iter_count;
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20 struct mail_command *mail_cmd_iter;
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21 struct mail_session *mail_session_iter;
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22 struct mail_user *mail_user_iter;
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23 struct mail_domain *mail_domain_iter;
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24 struct mail_ip *mail_ip_iter;
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25 };
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26
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27 struct client *client_create(int fd);
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28 void client_destroy(struct client **client);
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29
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30 bool client_is_busy(struct client *client);
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31 void client_enable_io(struct client *client);
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32
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33 void clients_destroy_all(void);
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34
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35 #endif