Mercurial > hg > orthanc
view Core/SQLite/StatementReference.cpp @ 940:4864b3e304be
fix
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 25 Jun 2014 09:06:34 +0200 |
parents | a811bdf8b8eb |
children | 9b9026560a5f |
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/** * Orthanc - A Lightweight, RESTful DICOM Store * Copyright (C) 2012-2014 Medical Physics Department, CHU of Liege, * Belgium * * Copyright (c) 2012 The Chromium Authors. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are * met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following disclaimer * in the documentation and/or other materials provided with the * distribution. * * Neither the name of Google Inc., the name of the CHU of Liege, * nor the names of its contributors may be used to endorse or promote * products derived from this software without specific prior written * permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. **/ #include "../PrecompiledHeaders.h" #include "StatementReference.h" #include "../OrthancException.h" #include <cassert> #include <glog/logging.h> #include "sqlite3.h" namespace Orthanc { namespace SQLite { bool StatementReference::IsRoot() const { return root_ == NULL; } StatementReference::StatementReference() { root_ = NULL; refCount_ = 0; statement_ = NULL; assert(IsRoot()); } StatementReference::StatementReference(sqlite3* database, const char* sql) { if (database == NULL || sql == NULL) { throw OrthancException(ErrorCode_ParameterOutOfRange); } root_ = NULL; refCount_ = 0; int error = sqlite3_prepare_v2(database, sql, -1, &statement_, NULL); if (error != SQLITE_OK) { throw OrthancException("SQLite: " + std::string(sqlite3_errmsg(database))); } assert(IsRoot()); } StatementReference::StatementReference(StatementReference& other) { refCount_ = 0; if (other.IsRoot()) { root_ = &other; } else { root_ = other.root_; } root_->refCount_++; statement_ = root_->statement_; assert(!IsRoot()); } StatementReference::~StatementReference() { if (IsRoot()) { if (refCount_ != 0) { // There remain references to this object. We cannot throw // an exception because: // http://www.parashift.com/c++-faq/dtors-shouldnt-throw.html LOG(ERROR) << "Bad value of the reference counter"; } else if (statement_ != NULL) { sqlite3_finalize(statement_); } } else { if (root_->refCount_ == 0) { // There remain references to this object. We cannot throw // an exception because: // http://www.parashift.com/c++-faq/dtors-shouldnt-throw.html LOG(ERROR) << "Bad value of the reference counter"; } else { root_->refCount_--; } } } uint32_t StatementReference::GetReferenceCount() const { return refCount_; } } }