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annotate PostgreSQL/Plugins/PostgreSQLDefinitions.h @ 493:0a8168522165

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author Alain Mazy <am@osimis.io>
date Fri, 22 Mar 2024 15:27:59 +0100
parents f0976163dbe1
children 54d518dcd74a
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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) 2017-2024 Osimis S.A., Belgium
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6 * Copyright (C) 2021-2024 Sebastien Jodogne, ICTEAM UCLouvain, Belgium
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7 *
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8 * This program is free software: you can redistribute it and/or
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9 * modify it under the terms of the GNU Affero General Public License
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10 * as published by the Free Software Foundation, either version 3 of
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11 * the License, or (at your option) any later version.
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12 *
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13 * This program is distributed in the hope that it will be useful, but
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14 * WITHOUT ANY WARRANTY; without even the implied warranty of
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15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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16 * Affero General Public License for more details.
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17 *
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18 * You should have received a copy of the GNU Affero General Public License
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19 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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20 **/
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21
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22
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23 #pragma once
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24
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25 #include <stdint.h>
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28 /**
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29 * This advisory lock is used if the "Lock" option is set to "true",
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30 * in order to prevent the execution of two PostgreSQL index plugins
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31 * on the same database.
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32 **/
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33 static const int32_t POSTGRESQL_LOCK_INDEX = 42;
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36 /**
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37 * This advisory lock is used if the "Lock" option is set to "true",
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38 * in order to prevent the execution of two PostgreSQL storage area
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39 * plugins on the same database.
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40 **/
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41 static const int32_t POSTGRESQL_LOCK_STORAGE = 43;
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43
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44 /**
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45 * Transient advisory lock to protect the setup of the database,
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46 * because concurrent statements like "CREATE TABLE" are not protected
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47 * by transactions.
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48 * https://groups.google.com/d/msg/orthanc-users/yV3LSTh_TjI/h3PRApJFBAAJ
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49 **/
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50 static const int32_t POSTGRESQL_LOCK_DATABASE_SETUP = 44;
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52 /**
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53 * Transient advisory lock to protect the instance creation,
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54 * because it is not 100% resilient to concurrency in, e.g, READ COMIITED
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55 * transaction isolation level.
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56 **/
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57 static const int32_t POSTGRESQL_LOCK_CREATE_INSTANCE = 45;