diff options
Diffstat (limited to 'contrib/epee/include/serialization/keyvalue_serialization_overloads.h')
| -rw-r--r-- | contrib/epee/include/serialization/keyvalue_serialization_overloads.h | 366 |
1 files changed, 366 insertions, 0 deletions
diff --git a/contrib/epee/include/serialization/keyvalue_serialization_overloads.h b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h new file mode 100644 index 000000000..2ad9a82a4 --- /dev/null +++ b/contrib/epee/include/serialization/keyvalue_serialization_overloads.h @@ -0,0 +1,366 @@ +// Copyright (c) 2006-2013, Andrey N. Sabelnikov, www.sabelnikov.net +// 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 the Andrey N. Sabelnikov 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 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. +// + +#pragma once + +namespace epee +{ + namespace serialization + { + + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool serialize_t_val(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return stg.set_value(pname, d, hparent_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool unserialize_t_val(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return stg.get_value(pname, d, hparent_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool serialize_t_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + std::string blob((const char *)&d, sizeof(d)); + return stg.set_value(pname, blob, hparent_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool unserialize_t_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + std::string blob; + if(!stg.get_value(pname, blob, hparent_section)) + return false; + CHECK_AND_ASSERT_MES(blob.size() == sizeof(d), false, "unserialize_t_val_as_blob: size of " << typeid(t_type).name() << " = " << sizeof(t_type) << ", but stored blod size = " << blob.size() << ", value name = " << pname); + d = *(const t_type*)blob.data(); + return true; + } + //------------------------------------------------------------------------------------------------------------------- + template<class serializible_type, class t_storage> + static bool serialize_t_obj(const serializible_type& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + typename t_storage::hsection hchild_section = stg.open_section(pname, hparent_section, true); + CHECK_AND_ASSERT_MES(hchild_section, false, "serialize_t_obj: failed to open/create section " << pname); + return obj.store(stg, hchild_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class serializible_type, class t_storage> + static bool unserialize_t_obj(serializible_type& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + typename t_storage::hsection hchild_section = stg.open_section(pname, hparent_section, true); + if(!hchild_section) return false; + return obj._load(stg, hchild_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class serializible_type, class t_storage> + static bool serialize_t_obj(enableable<serializible_type>& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + if(!obj.enabled) + return true; + return serialize_t_obj(obj.v, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class serializible_type, class t_storage> + static bool unserialize_t_obj(enableable<serializible_type>& obj, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + obj.enabled = false; + typename t_storage::hsection hchild_section = stg.open_section(pname, hparent_section, true); + if(!hchild_section) return false; + obj.enabled = true; + return obj.v._load(stg, hchild_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class stl_container, class t_storage> + static bool serialize_stl_container_t_val (const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + if(!container.size()) return true; + typename stl_container::const_iterator it = container.begin(); + typename t_storage::harray hval_array = stg.insert_first_value(pname, *it, hparent_section); + CHECK_AND_ASSERT_MES(hval_array, false, "failed to insert first value to storage"); + it++; + for(;it!= container.end();it++) + stg.insert_next_value(hval_array, *it); + + return true; + } + //-------------------------------------------------------------------------------------------------------------------- + template<class stl_container, class t_storage> + static bool unserialize_stl_container_t_val(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + container.clear(); + typename stl_container::value_type exchange_val; + typename t_storage::harray hval_array = stg.get_first_value(pname, exchange_val, hparent_section); + if(!hval_array) return false; + container.push_back(std::move(exchange_val)); + while(stg.get_next_value(hval_array, exchange_val)) + container.push_back(std::move(exchange_val)); + return true; + }//-------------------------------------------------------------------------------------------------------------------- + template<class stl_container, class t_storage> + static bool serialize_stl_container_pod_val_as_blob(const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + if(!container.size()) return true; + typename stl_container::const_iterator it = container.begin(); + std::string mb; + mb.resize(sizeof(typename stl_container::value_type)*container.size()); + typename stl_container::value_type* p_elem = (typename stl_container::value_type*)mb.data(); + BOOST_FOREACH(const typename stl_container::value_type& v, container) + { + *p_elem = v; + p_elem++; + } + return stg.set_value(pname, mb, hparent_section); + } + //-------------------------------------------------------------------------------------------------------------------- + template<class stl_container, class t_storage> + static bool unserialize_stl_container_pod_val_as_blob(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + container.clear(); + std::string buff; + bool res = stg.get_value(pname, buff, hparent_section); + if(res) + { + size_t loaded_size = buff.size(); + typename stl_container::value_type* pelem = (typename stl_container::value_type*)buff.data(); + CHECK_AND_ASSERT_MES(!(loaded_size%sizeof(typename stl_container::value_type)), + false, + "size in blob " << loaded_size << " not have not zero modulo for sizeof(value_type) = " << sizeof(typename stl_container::value_type)); + size_t count = (loaded_size/sizeof(typename stl_container::value_type)); + for(size_t i = 0; i < count; i++) + container.push_back(*(pelem++)); + } + return res; + } + //-------------------------------------------------------------------------------------------------------------------- + template<class stl_container, class t_storage> + static bool serialize_stl_container_t_obj (const stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + bool res = false; + if(!container.size()) return true; + typename stl_container::const_iterator it = container.begin(); + typename t_storage::hsection hchild_section = nullptr; + typename t_storage::harray hsec_array = stg.insert_first_section(pname, hchild_section, hparent_section); + CHECK_AND_ASSERT_MES(hsec_array && hchild_section, false, "failed to insert first section with section name " << pname); + res = it->store(stg, hchild_section); + it++; + for(;it!= container.end();it++) + { + stg.insert_next_section(hsec_array, hchild_section); + res |= it->store(stg, hchild_section); + } + return res; + } + //-------------------------------------------------------------------------------------------------------------------- + template<class stl_container, class t_storage> + static bool unserialize_stl_container_t_obj(stl_container& container, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + bool res = false; + container.clear(); + typename stl_container::value_type val = typename stl_container::value_type(); + typename t_storage::hsection hchild_section = nullptr; + typename t_storage::harray hsec_array = stg.get_first_section(pname, hchild_section, hparent_section); + if(!hsec_array || !hchild_section) return false; + res = val._load(stg, hchild_section); + container.push_back(val); + while(stg.get_next_section(hsec_array, hchild_section)) + { + typename stl_container::value_type val_l = typename stl_container::value_type(); + res |= val_l._load(stg, hchild_section); + container.push_back(std::move(val_l)); + } + return res; + } + //-------------------------------------------------------------------------------------------------------------------- + template<bool> + struct kv_serialization_overloads_impl_is_base_serializable_types; + + template<> + struct kv_serialization_overloads_impl_is_base_serializable_types<true> + { + template<class t_type, class t_storage> + static bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return stg.set_value(pname, d, hparent_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return stg.get_value(pname, d, hparent_section); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return serialize_stl_container_t_val(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return unserialize_stl_container_t_val(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return serialize_stl_container_t_val(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return unserialize_stl_container_t_val(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + }; + template<> + struct kv_serialization_overloads_impl_is_base_serializable_types<false> + { + template<class t_type, class t_storage> + static bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return serialize_t_obj(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return unserialize_t_obj(d, stg, hparent_section, pname); + } + + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return serialize_stl_container_t_obj(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return unserialize_stl_container_t_obj(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return serialize_stl_container_t_obj(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + static bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return unserialize_stl_container_t_obj(d, stg, hparent_section, pname); + } + }; + typedef boost::mpl::vector<uint64_t, uint32_t, uint16_t, uint8_t, int64_t, int32_t, int16_t, int8_t, double, bool, std::string>::type base_serializable_types; + //------------------------------------------------------------------------------------------------------------------- + template<bool> struct selector; + template<> + struct selector<true> + { + template<class t_type, class t_storage> + static bool serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialize(d, stg, hparent_section, pname); + } + + template<class t_type, class t_storage> + static bool serialize_stl_container_pod_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return epee::serialization::serialize_stl_container_pod_val_as_blob(d, stg, hparent_section, pname); + } + + template<class t_type, class t_storage> + static bool serialize_t_val_as_blob(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return epee::serialization::serialize_t_val_as_blob(d, stg, hparent_section, pname); + } + + + }; + template<> + struct selector<false> + { + template<class t_type, class t_storage> + static bool serialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_unserialize(d, stg, hparent_section, pname); + } + template<class t_type, class t_storage> + static bool serialize_stl_container_pod_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return epee::serialization::unserialize_stl_container_pod_val_as_blob(d, stg, hparent_section, pname); + } + + template<class t_type, class t_storage> + static bool serialize_t_val_as_blob(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return epee::serialization::unserialize_t_val_as_blob(d, stg, hparent_section, pname); + } + }; + + template<class t_type, class t_storage> + bool kv_serialize(const t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + bool kv_unserialize(t_type& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + bool kv_serialize(const std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + bool kv_unserialize(std::vector<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + bool kv_serialize(const std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types, typename std::remove_const<t_type>::type>::value>::kv_serialize(d, stg, hparent_section, pname); + } + //------------------------------------------------------------------------------------------------------------------- + template<class t_type, class t_storage> + bool kv_unserialize(std::list<t_type>& d, t_storage& stg, typename t_storage::hsection hparent_section, const char* pname) + { + return kv_serialization_overloads_impl_is_base_serializable_types<boost::mpl::contains<base_serializable_types, typename std::remove_const<t_type>::type>::value>::kv_unserialize(d, stg, hparent_section, pname); + } + } +}
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