annotate Core/Images/JpegErrorManager.h @ 2134:ddc75c6c712d

Avoid hard crash if not enough memory
author Sebastien Jodogne <s.jodogne@gmail.com>
date Wed, 09 Nov 2016 12:04:09 +0100
parents b1291df2f780
children a3a65de1840f
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1 /**
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2 * Orthanc - A Lightweight, RESTful DICOM Store
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3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics
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4 * Department, University Hospital of Liege, Belgium
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5 *
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6 * This program is free software: you can redistribute it and/or
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7 * modify it under the terms of the GNU General Public License as
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8 * published by the Free Software Foundation, either version 3 of the
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9 * License, or (at your option) any later version.
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10 *
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11 * In addition, as a special exception, the copyright holders of this
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12 * program give permission to link the code of its release with the
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13 * OpenSSL project's "OpenSSL" library (or with modified versions of it
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14 * that use the same license as the "OpenSSL" library), and distribute
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15 * the linked executables. You must obey the GNU General Public License
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16 * in all respects for all of the code used other than "OpenSSL". If you
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17 * modify file(s) with this exception, you may extend this exception to
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18 * your version of the file(s), but you are not obligated to do so. If
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19 * you do not wish to do so, delete this exception statement from your
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20 * version. If you delete this exception statement from all source files
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21 * in the program, then also delete it here.
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22 *
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23 * This program is distributed in the hope that it will be useful, but
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24 * WITHOUT ANY WARRANTY; without even the implied warranty of
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25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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26 * General Public License for more details.
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27 *
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28 * You should have received a copy of the GNU General Public License
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29 * along with this program. If not, see <http://www.gnu.org/licenses/>.
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30 **/
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31
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32 #pragma once
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33
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34 #include <string.h>
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35 #include <stdio.h>
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36 #include <jpeglib.h>
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37 #include <setjmp.h>
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38 #include <string>
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39
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40 namespace Orthanc
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41 {
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42 namespace Internals
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43 {
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44 class JpegErrorManager
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45 {
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46 private:
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47 struct jpeg_error_mgr pub; /* "public" fields */
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48 jmp_buf setjmp_buffer; /* for return to caller */
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49 std::string message;
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50
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51 static void OutputMessage(j_common_ptr cinfo);
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52
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53 static void ErrorExit(j_common_ptr cinfo);
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54
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55 public:
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56 JpegErrorManager();
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57
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58 struct jpeg_error_mgr* GetPublic()
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59 {
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60 return &pub;
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61 }
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62
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63 jmp_buf& GetJumpBuffer()
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64 {
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65 return setjmp_buffer;
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66 }
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67
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68 const std::string& GetMessage() const
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69 {
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70 return message;
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71 }
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72 };
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73 }
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74 }