Mercurial > hg > orthanc-databases
annotate MySQL/Plugins/MySQLStorageArea.cpp @ 140:4cd7e45b671e
upgrade to year 2020
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Fri, 31 Jan 2020 17:24:29 +0100 |
parents | 52b3859ee0b7 |
children | 063aa53b5917 |
rev | line source |
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17 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2020 Osimis S.A., Belgium |
17 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #include "MySQLStorageArea.h" | |
23 | |
24 #include "../../Framework/MySQL/MySQLDatabase.h" | |
25 #include "../../Framework/MySQL/MySQLTransaction.h" | |
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26 #include "MySQLDefinitions.h" |
17 | 27 |
28 #include <Core/Logging.h> | |
29 | |
30 #include <boost/math/special_functions/round.hpp> | |
31 | |
32 | |
33 namespace OrthancDatabases | |
34 { | |
35 IDatabase* MySQLStorageArea::OpenInternal() | |
36 { | |
37 std::auto_ptr<MySQLDatabase> db(new MySQLDatabase(parameters_)); | |
38 | |
39 db->Open(); | |
40 | |
41 { | |
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42 MySQLDatabase::TransientAdvisoryLock lock(*db, MYSQL_LOCK_DATABASE_SETUP); |
17 | 43 MySQLTransaction t(*db); |
44 | |
45 int64_t size; | |
46 if (db->LookupGlobalIntegerVariable(size, "max_allowed_packet")) | |
47 { | |
48 int mb = boost::math::iround(static_cast<double>(size) / | |
49 static_cast<double>(1024 * 1024)); | |
50 LOG(WARNING) << "Your MySQL server cannot " | |
51 << "store DICOM files larger than " << mb << "MB"; | |
52 LOG(WARNING) << " => Consider increasing \"max_allowed_packet\" " | |
53 << "in \"my.cnf\" if this limit is insufficient for your use"; | |
54 } | |
55 else | |
56 { | |
57 LOG(WARNING) << "Unable to auto-detect the maximum size of DICOM " | |
58 << "files that can be stored in this MySQL server"; | |
59 } | |
60 | |
61 if (clearAll_) | |
62 { | |
63 db->Execute("DROP TABLE IF EXISTS StorageArea", false); | |
64 } | |
65 | |
66 db->Execute("CREATE TABLE IF NOT EXISTS StorageArea(" | |
67 "uuid VARCHAR(64) NOT NULL PRIMARY KEY," | |
68 "content LONGBLOB NOT NULL," | |
69 "type INTEGER NOT NULL)", false); | |
70 | |
71 t.Commit(); | |
72 } | |
73 | |
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74 /** |
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75 * WARNING: This lock must be acquired after |
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76 * "MYSQL_LOCK_DATABASE_SETUP" is released. Indeed, in MySQL < |
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77 * 5.7, it is impossible to acquire more than one lock at a time, |
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78 * as calling "SELECT GET_LOCK()" releases all the |
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79 * previously-acquired locks. |
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80 * https://dev.mysql.com/doc/refman/5.7/en/locking-functions.html |
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81 **/ |
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82 if (parameters_.HasLock()) |
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83 { |
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84 db->AdvisoryLock(MYSQL_LOCK_STORAGE); |
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85 } |
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86 |
17 | 87 return db.release(); |
88 } | |
89 | |
90 | |
91 MySQLStorageArea::MySQLStorageArea(const MySQLParameters& parameters) : | |
92 StorageBackend(new Factory(*this)), | |
93 parameters_(parameters), | |
94 clearAll_(false) | |
95 { | |
96 } | |
97 } |