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annotate PostgreSQL/Plugins/PostgreSQLDefinitions.h @ 136:3266785d5627

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cleaning up PostgreSQL locks with constants
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 09 May 2019 09:52:11 +0200
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children 4cd7e45b671e
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3266785d5627 cleaning up PostgreSQL locks with constants
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 * Copyright (C) 2017-2019 Osimis S.A., Belgium
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6 *
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7 * This program is free software: you can redistribute it and/or
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8 * modify it under the terms of the GNU Affero General Public License
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9 * as published by the Free Software Foundation, either version 3 of
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10 * the License, or (at your option) any later version.
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11 *
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12 * This program is distributed in the hope that it will be useful, but
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13 * WITHOUT ANY WARRANTY; without even the implied warranty of
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14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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15 * Affero General Public License for more details.
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16 *
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17 * You should have received a copy of the GNU Affero General Public License
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18 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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19 **/
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20
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21
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22 #pragma once
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23
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24 #include <stdint.h>
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25
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26
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27 /**
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28 * This advisory lock is used if the "Lock" option is set to "true",
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29 * in order to prevent the execution of two PostgreSQL index plugins
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30 * on the same database.
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31 **/
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32 static const int32_t POSTGRESQL_LOCK_INDEX = 42;
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33
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34
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35 /**
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36 * This advisory lock is used if the "Lock" option is set to "true",
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37 * in order to prevent the execution of two PostgreSQL storage area
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38 * plugins on the same database.
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39 **/
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40 static const int32_t POSTGRESQL_LOCK_STORAGE = 43;
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41
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42
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43 /**
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44 * Transient advisory lock to protect the setup of the database,
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45 * because concurrent statements like "CREATE TABLE" are not protected
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46 * by transactions.
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47 * https://groups.google.com/d/msg/orthanc-users/yV3LSTh_TjI/h3PRApJFBAAJ
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48 **/
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49 static const int32_t POSTGRESQL_LOCK_DATABASE_SETUP = 44;