Mercurial > hg > orthanc
annotate Core/SQLite/StatementReference.cpp @ 2759:0cfab50c1381 Orthanc-0.7.5
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| author | Sebastien Jodogne <s.jodogne@gmail.com> |
|---|---|
| date | Tue, 17 Jul 2018 09:41:32 +0200 |
| parents | 2d0a347e8cfc |
| children | a811bdf8b8eb |
| rev | line source |
|---|---|
| 0 | 1 /** |
| 59 | 2 * Orthanc - A Lightweight, RESTful DICOM Store |
| 689 | 3 * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, |
| 0 | 4 * Belgium |
| 5 * | |
| 17 | 6 * Copyright (c) 2012 The Chromium Authors. All rights reserved. |
| 7 * | |
| 8 * Redistribution and use in source and binary forms, with or without | |
| 9 * modification, are permitted provided that the following conditions are | |
| 10 * met: | |
| 0 | 11 * |
| 17 | 12 * * Redistributions of source code must retain the above copyright |
| 13 * notice, this list of conditions and the following disclaimer. | |
| 14 * * Redistributions in binary form must reproduce the above | |
| 15 * copyright notice, this list of conditions and the following disclaimer | |
| 16 * in the documentation and/or other materials provided with the | |
| 17 * distribution. | |
| 18 * * Neither the name of Google Inc., the name of the CHU of Liege, | |
| 19 * nor the names of its contributors may be used to endorse or promote | |
| 20 * products derived from this software without specific prior written | |
| 21 * permission. | |
| 22 * | |
| 23 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS | |
| 24 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT | |
| 25 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR | |
| 26 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT | |
| 27 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, | |
| 28 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT | |
| 29 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, | |
| 30 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY | |
| 31 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 32 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 33 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 0 | 34 **/ |
| 35 | |
| 36 | |
| 37 #include "StatementReference.h" | |
| 38 | |
| 59 | 39 #include "../OrthancException.h" |
| 0 | 40 |
| 41 #include <cassert> | |
| 656 | 42 #include <glog/logging.h> |
| 0 | 43 #include "sqlite3.h" |
| 44 | |
| 59 | 45 namespace Orthanc |
| 0 | 46 { |
| 47 namespace SQLite | |
| 48 { | |
| 49 bool StatementReference::IsRoot() const | |
| 50 { | |
| 51 return root_ == NULL; | |
| 52 } | |
| 53 | |
| 54 StatementReference::StatementReference() | |
| 55 { | |
| 56 root_ = NULL; | |
| 57 refCount_ = 0; | |
| 58 statement_ = NULL; | |
| 59 assert(IsRoot()); | |
| 60 } | |
| 61 | |
| 62 StatementReference::StatementReference(sqlite3* database, | |
| 63 const char* sql) | |
| 64 { | |
| 65 if (database == NULL || sql == NULL) | |
| 66 { | |
| 59 | 67 throw OrthancException(ErrorCode_ParameterOutOfRange); |
| 0 | 68 } |
| 69 | |
| 70 root_ = NULL; | |
| 71 refCount_ = 0; | |
| 72 | |
| 73 int error = sqlite3_prepare_v2(database, sql, -1, &statement_, NULL); | |
| 74 if (error != SQLITE_OK) | |
| 75 { | |
| 59 | 76 throw OrthancException("SQLite: " + std::string(sqlite3_errmsg(database))); |
| 0 | 77 } |
| 78 | |
| 79 assert(IsRoot()); | |
| 80 } | |
| 81 | |
| 82 StatementReference::StatementReference(StatementReference& other) | |
| 83 { | |
| 84 refCount_ = 0; | |
| 85 | |
| 86 if (other.IsRoot()) | |
| 87 { | |
| 88 root_ = &other; | |
| 89 } | |
| 90 else | |
| 91 { | |
| 92 root_ = other.root_; | |
| 93 } | |
| 94 | |
| 95 root_->refCount_++; | |
| 96 statement_ = root_->statement_; | |
| 97 | |
| 98 assert(!IsRoot()); | |
| 99 } | |
| 100 | |
| 101 StatementReference::~StatementReference() | |
| 102 { | |
| 103 if (IsRoot()) | |
| 104 { | |
| 105 if (refCount_ != 0) | |
| 106 { | |
| 656 | 107 // There remain references to this object. We cannot throw |
| 108 // an exception because: | |
| 109 // http://www.parashift.com/c++-faq/dtors-shouldnt-throw.html | |
| 110 | |
| 111 LOG(ERROR) << "Bad value of the reference counter"; | |
| 0 | 112 } |
| 113 else if (statement_ != NULL) | |
| 114 { | |
| 115 sqlite3_finalize(statement_); | |
| 116 } | |
| 117 } | |
| 118 else | |
| 119 { | |
| 120 if (root_->refCount_ == 0) | |
| 121 { | |
|
657
5425bb6f1ea5
further cppcheck fixes
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
656
diff
changeset
|
122 // There remain references to this object. We cannot throw |
|
5425bb6f1ea5
further cppcheck fixes
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
656
diff
changeset
|
123 // an exception because: |
|
5425bb6f1ea5
further cppcheck fixes
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
656
diff
changeset
|
124 // http://www.parashift.com/c++-faq/dtors-shouldnt-throw.html |
|
5425bb6f1ea5
further cppcheck fixes
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
656
diff
changeset
|
125 |
|
5425bb6f1ea5
further cppcheck fixes
Sebastien Jodogne <s.jodogne@gmail.com>
parents:
656
diff
changeset
|
126 LOG(ERROR) << "Bad value of the reference counter"; |
| 0 | 127 } |
| 128 else | |
| 129 { | |
| 130 root_->refCount_--; | |
| 131 } | |
| 132 } | |
| 133 } | |
| 134 | |
| 135 uint32_t StatementReference::GetReferenceCount() const | |
| 136 { | |
| 137 return refCount_; | |
| 138 } | |
| 139 } | |
| 140 } |