Mercurial > dovecot > core-2.2

annotate src/doveadm/dsync/dsync-serializer.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 b2076acc3715
children
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1 #ifndef DSYNC_SERIALIZER_H
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2 #define DSYNC_SERIALIZER_H
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3
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4 #define NULL_CHR '\002'
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5
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6 struct dsync_serializer *dsync_serializer_init(const char *const keys[]);
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7 void dsync_serializer_deinit(struct dsync_serializer **serializer);
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8
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9 const char *
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10 dsync_serializer_encode_header_line(struct dsync_serializer *serializer);
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11 struct dsync_serializer_encoder *
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12 dsync_serializer_encode_begin(struct dsync_serializer *serializer);
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13 void dsync_serializer_encode_add(struct dsync_serializer_encoder *encoder,
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14 const char *key, const char *value);
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15 void dsync_serializer_encode_finish(struct dsync_serializer_encoder **encoder,
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16 string_t *output);
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17
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18 #endif