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authorJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:14:32 +0100
committerJörg Frings-Fürst <debian@jff-webhosting.net>2020-02-02 17:14:32 +0100
commit5dadc28ea784db1ba1f56c2ea8618d2db67af1c8 (patch)
tree808b2499b54563b3290f34d70d159b1024310873 /backend/genesys/serialize.h
parent5bb4cf12855ec0151de15d6c5a2354ff08766957 (diff)
parent3dade5db2a37543f19f0967901d8d80a52a1e459 (diff)
Merge branch 'feature/upstream' into develop
Diffstat (limited to 'backend/genesys/serialize.h')
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diff --git a/backend/genesys/serialize.h b/backend/genesys/serialize.h
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+/* sane - Scanner Access Now Easy.
+
+ Copyright (C) 2019 Povilas Kanapickas <povilas@radix.lt>
+
+ This file is part of the SANE package.
+
+ This program is free software; you can redistribute it and/or
+ modify it under the terms of the GNU General Public License as
+ published by the Free Software Foundation; either version 2 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
+ General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program; if not, write to the Free Software
+ Foundation, Inc., 59 Temple Place - Suite 330, Boston,
+ MA 02111-1307, USA.
+
+ As a special exception, the authors of SANE give permission for
+ additional uses of the libraries contained in this release of SANE.
+
+ The exception is that, if you link a SANE library with other files
+ to produce an executable, this does not by itself cause the
+ resulting executable to be covered by the GNU General Public
+ License. Your use of that executable is in no way restricted on
+ account of linking the SANE library code into it.
+
+ This exception does not, however, invalidate any other reasons why
+ the executable file might be covered by the GNU General Public
+ License.
+
+ If you submit changes to SANE to the maintainers to be included in
+ a subsequent release, you agree by submitting the changes that
+ those changes may be distributed with this exception intact.
+
+ If you write modifications of your own for SANE, it is your choice
+ whether to permit this exception to apply to your modifications.
+ If you do not wish that, delete this exception notice.
+*/
+
+#ifndef BACKEND_GENESYS_SERIALIZE_H
+#define BACKEND_GENESYS_SERIALIZE_H
+
+#include "error.h"
+#include <array>
+#include <iostream>
+#include <limits>
+#include <string>
+#include <vector>
+
+namespace genesys {
+
+// it would be best to use something like boost.serialization
+
+inline void serialize_newline(std::ostream& str) { str << '\n'; }
+inline void serialize_newline(std::istream& str) { (void) str; }
+
+inline void serialize(std::ostream& str, bool x) { str << static_cast<unsigned>(x) << " "; }
+inline void serialize(std::istream& str, bool& x) { unsigned v; str >> v; x = v; }
+inline void serialize(std::ostream& str, char x) { str << static_cast<int>(x) << " "; }
+inline void serialize(std::istream& str, char& x) { int v; str >> v; x = v; }
+inline void serialize(std::ostream& str, unsigned char x) { str << static_cast<unsigned>(x) << " "; }
+inline void serialize(std::istream& str, unsigned char& x) { unsigned v; str >> v; x = v; }
+inline void serialize(std::ostream& str, signed char x) { str << static_cast<int>(x) << " "; }
+inline void serialize(std::istream& str, signed char& x) { int v; str >> v; x = v; }
+inline void serialize(std::ostream& str, short x) { str << x << " "; }
+inline void serialize(std::istream& str, short& x) { str >> x; }
+inline void serialize(std::ostream& str, unsigned short x) { str << x << " "; }
+inline void serialize(std::istream& str, unsigned short& x) { str >> x; }
+inline void serialize(std::ostream& str, int x) { str << x << " "; }
+inline void serialize(std::istream& str, int& x) { str >> x; }
+inline void serialize(std::ostream& str, unsigned int x) { str << x << " "; }
+inline void serialize(std::istream& str, unsigned int& x) { str >> x; }
+inline void serialize(std::ostream& str, long x) { str << x << " "; }
+inline void serialize(std::istream& str, long& x) { str >> x; }
+inline void serialize(std::ostream& str, unsigned long x) { str << x << " "; }
+inline void serialize(std::istream& str, unsigned long& x) { str >> x; }
+inline void serialize(std::ostream& str, long long x) { str << x << " "; }
+inline void serialize(std::istream& str, long long& x) { str >> x; }
+inline void serialize(std::ostream& str, unsigned long long x) { str << x << " "; }
+inline void serialize(std::istream& str, unsigned long long& x) { str >> x; }
+inline void serialize(std::ostream& str, float x) { str << x << " "; }
+inline void serialize(std::istream& str, float& x) { str >> x; }
+inline void serialize(std::ostream& str, double x) { str << x << " "; }
+inline void serialize(std::istream& str, double& x) { str >> x; }
+inline void serialize(std::ostream& str, const std::string& x) { str << x << " "; }
+inline void serialize(std::istream& str, std::string& x) { str >> x; }
+
+template<class T>
+void serialize(std::ostream& str, std::vector<T>& x)
+{
+ serialize(str, x.size());
+ serialize_newline(str);
+
+ for (auto& item : x) {
+ serialize(str, item);
+ serialize_newline(str);
+ }
+}
+
+template<class T>
+void serialize(std::istream& str, std::vector<T>& x,
+ size_t max_size = std::numeric_limits<size_t>::max())
+{
+ size_t new_size;
+ serialize(str, new_size);
+
+ if (new_size > max_size) {
+ throw SaneException("Too large std::vector to deserialize");
+ }
+ x.reserve(new_size);
+ for (size_t i = 0; i < new_size; ++i) {
+ T item;
+ serialize(str, item);
+ x.push_back(item);
+ }
+}
+
+template<class T, size_t Size>
+void serialize(std::ostream& str, std::array<T, Size>& x)
+{
+ serialize(str, x.size());
+ serialize_newline(str);
+
+ for (auto& item : x) {
+ serialize(str, item);
+ serialize_newline(str);
+ }
+}
+
+template<class T, size_t Size>
+void serialize(std::istream& str, std::array<T, Size>& x)
+{
+ size_t new_size;
+ serialize(str, new_size);
+
+ if (new_size > Size) {
+ throw SaneException("Incorrect std::array size to deserialize");
+ }
+ for (auto& item : x) {
+ serialize(str, item);
+ }
+}
+
+} // namespace genesys
+
+#endif