Mercurial > hg > orthanc-databases
annotate MySQL/Plugins/MySQLStorageArea.cpp @ 152:063aa53b5917
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Wed, 01 Jul 2020 08:54:32 +0200 |
| parents | 4cd7e45b671e |
| children | 275e14f57f1e |
| rev | line source |
|---|---|
| 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 |
| 152 | 28 #include <Logging.h> |
| 17 | 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 } |