Mercurial > hg > orthanc-databases
annotate Framework/PostgreSQL/PostgreSQLLargeObject.h @ 248:7a4f9bcb0bc2
PostgreSQL: Support of range reads from the storage area
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Wed, 14 Apr 2021 09:46:44 +0200 |
parents | 3236894320d6 |
children | 16aac0287485 |
rev | line source |
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0 | 1 /** |
2 * Orthanc - A Lightweight, RESTful DICOM Store | |
3 * Copyright (C) 2012-2016 Sebastien Jodogne, Medical Physics | |
4 * Department, University Hospital of Liege, Belgium | |
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5 * Copyright (C) 2017-2021 Osimis S.A., Belgium |
0 | 6 * |
7 * This program is free software: you can redistribute it and/or | |
8 * modify it under the terms of the GNU Affero General Public License | |
9 * as published by the Free Software Foundation, either version 3 of | |
10 * the License, or (at your option) any later version. | |
11 * | |
12 * This program is distributed in the hope that it will be useful, but | |
13 * WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
15 * Affero General Public License for more details. | |
16 * | |
17 * You should have received a copy of the GNU Affero General Public License | |
18 * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
19 **/ | |
20 | |
21 | |
22 #pragma once | |
23 | |
24 #if ORTHANC_ENABLE_POSTGRESQL != 1 | |
25 # error PostgreSQL support must be enabled to use this file | |
26 #endif | |
27 | |
28 #include "PostgreSQLDatabase.h" | |
29 | |
30 #include <libpq-fe.h> | |
31 | |
32 namespace OrthancDatabases | |
33 { | |
34 class PostgreSQLLargeObject : public boost::noncopyable | |
35 { | |
36 private: | |
37 class Reader; | |
38 | |
39 PostgreSQLDatabase& database_; | |
40 Oid oid_; | |
41 | |
42 void Create(); | |
43 | |
44 void Write(const void* data, | |
45 size_t size); | |
46 | |
47 public: | |
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48 // This constructor is used to deal with "InputFileValue" |
0 | 49 PostgreSQLLargeObject(PostgreSQLDatabase& database, |
50 const std::string& s); | |
51 | |
52 std::string GetOid() const; | |
53 | |
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54 static void ReadWhole(std::string& target, |
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55 PostgreSQLDatabase& database, |
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56 const std::string& oid); |
0 | 57 |
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58 static void ReadRange(std::string& target, |
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59 PostgreSQLDatabase& database, |
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60 const std::string& oid, |
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61 uint64_t start, |
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62 size_t size); |
0 | 63 |
64 static void Delete(PostgreSQLDatabase& database, | |
65 const std::string& oid); | |
66 }; | |
67 | |
68 } |