Mercurial > hg > orthanc-databases

comparison PostgreSQL/Plugins/PostgreSQLIndex.cpp @ 134:cc3dc759c989

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Added an advisory lock to avoid race conditions during database setup
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 08 May 2019 20:21:13 +0200
parents e61587582cef
children 3266785d5627
comparison
equal deleted inserted replaced
133:b1d7d255fb73 134:cc3dc759c989
72 if (parameters_.HasLock()) 72 if (parameters_.HasLock())
73 { 73 {
74 db->AdvisoryLock(42 /* some arbitrary constant */); 74 db->AdvisoryLock(42 /* some arbitrary constant */);
75 } 75 }
76 76
77 /**
78 * Try and acquire a transient advisory lock to protect the setup
79 * of the database, because concurrent statements like "CREATE
80 * TABLE" are not protected by transactions.
81 * https://groups.google.com/d/msg/orthanc-users/yV3LSTh_TjI/h3PRApJFBAAJ
82 **/
83 PostgreSQLDatabase::TransientAdvisoryLock lock(*db, 44 /* some arbitrary constant */);
84
77 if (clearAll_) 85 if (clearAll_)
78 { 86 {
79 db->ClearAll(); 87 db->ClearAll();
80 } 88 }
81 89