diff Framework/Plugins/StorageAreaBuffer.cpp @ 194:a51ce147dbe0

refactoring using new class StorageAreaBuffer
author Sebastien Jodogne <s.jodogne@gmail.com>
date Fri, 08 Jan 2021 14:40:03 +0100
parents
children 53bd9022c58b
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line diff
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Framework/Plugins/StorageAreaBuffer.cpp	Fri Jan 08 14:40:03 2021 +0100
@@ -0,0 +1,98 @@
+/**
+ * Orthanc - A Lightweight, RESTful DICOM Store
+ * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
+ * Department, University Hospital of Liege, Belgium
+ * Copyright (C) 2017-2021 Osimis S.A., Belgium
+ *
+ * This program is free software: you can redistribute it and/or
+ * modify it under the terms of the GNU Affero General Public License
+ * as published by the Free Software Foundation, either version 3 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * Affero General Public License for more details.
+ * 
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ **/
+
+
+#include "StorageAreaBuffer.h"
+
+#include <OrthancException.h>
+
+#include <limits>
+#include <string.h>
+
+
+namespace OrthancDatabases
+{
+  StorageAreaBuffer::StorageAreaBuffer() :
+    data_(NULL),
+    size_(0)
+  {
+  }
+
+  
+  void StorageAreaBuffer::Clear()
+  {
+    if (data_ != NULL)
+    {
+      free(data_);
+      data_ = NULL;
+      size_ = 0;
+    }
+  }
+
+
+  void StorageAreaBuffer::Assign(const std::string& content)
+  {
+    Clear();
+    
+    size_ = static_cast<int64_t>(content.size());
+    
+    if (static_cast<size_t>(size_) != content.size())
+    {
+      throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory,
+                                      "File cannot be stored in a 63bit buffer");
+    }
+
+    if (content.empty())
+    {
+      data_ = NULL;
+    }
+    else
+    {
+      data_ = malloc(size_);
+
+      if (data_ == NULL)
+      {
+        throw Orthanc::OrthancException(Orthanc::ErrorCode_NotEnoughMemory);
+      }
+
+      memcpy(data_, content.c_str(), size_);
+    }
+  }
+
+
+  void* StorageAreaBuffer::ReleaseData()
+  {
+    void* result = data_;
+    data_ = NULL;
+    size_ = 0;
+    return result;
+  }
+
+
+  void StorageAreaBuffer::ToString(std::string& target)
+  {
+    target.resize(size_);
+
+    if (size_ != 0)
+    {
+      memcpy(&target[0], data_, size_);
+    }
+  }
+}