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#include "helper.h" |
#include "helper.h" |
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#define LIBGIG_EPOCH_TIME ((time_t)0) |
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namespace Serialization { |
namespace Serialization { |
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// *************** DataType *************** |
// *************** DataType *************** |
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// * |
// * |
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static UID _createNullUID() { |
static UID _createNullUID() { |
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return (UID) { NULL, 0 }; |
const UID uid = { NULL, 0 }; |
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return uid; |
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} |
} |
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const UID NO_UID = _createNullUID(); |
const UID NO_UID = _createNullUID(); |
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m_operation = OPERATION_NONE; |
m_operation = OPERATION_NONE; |
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m_root = NO_UID; |
m_root = NO_UID; |
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m_isModified = false; |
m_isModified = false; |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
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} |
} |
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Archive::Archive(const RawData& data) { |
Archive::Archive(const RawData& data) { |
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m_operation = OPERATION_NONE; |
m_operation = OPERATION_NONE; |
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m_root = NO_UID; |
m_root = NO_UID; |
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m_isModified = false; |
m_isModified = false; |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
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decode(m_rawData); |
decode(m_rawData); |
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} |
} |
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m_operation = OPERATION_NONE; |
m_operation = OPERATION_NONE; |
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m_root = NO_UID; |
m_root = NO_UID; |
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m_isModified = false; |
m_isModified = false; |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
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decode(data, size); |
decode(data, size); |
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} |
} |
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return _encodeBlob(s); |
return _encodeBlob(s); |
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} |
} |
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static String _encode(const time_t& time) { |
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return _encodeBlob(ToString(time)); |
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} |
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static String _encode(const DataType& type) { |
static String _encode(const DataType& type) { |
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String s; |
String s; |
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s += _encodeBlob(type.baseTypeName()); |
s += _encodeBlob(type.baseTypeName()); |
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return s; |
return s; |
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} |
} |
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template<typename T> |
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static T _primitiveObjectValueToNumber(const Object& obj) { |
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T value = 0; |
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const DataType& type = obj.type(); |
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const ID& id = obj.uid().id; |
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void* ptr = obj.m_data.empty() ? (void*)id : (void*)&obj.m_data[0]; |
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if (!obj.m_data.empty()) |
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assert(type.size() == obj.m_data.size()); |
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if (type.isPrimitive() && !type.isPointer()) { |
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if (type.isInteger() || type.isEnum()) { |
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if (type.isSigned()) { |
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if (type.size() == 1) |
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value = (T)*(int8_t*)ptr; |
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else if (type.size() == 2) |
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value = (T)*(int16_t*)ptr; |
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else if (type.size() == 4) |
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value = (T)*(int32_t*)ptr; |
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else if (type.size() == 8) |
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value = (T)*(int64_t*)ptr; |
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else |
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assert(false /* unknown signed int type size */); |
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} else { |
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if (type.size() == 1) |
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value = (T)*(uint8_t*)ptr; |
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else if (type.size() == 2) |
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value = (T)*(uint16_t*)ptr; |
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else if (type.size() == 4) |
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value = (T)*(uint32_t*)ptr; |
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else if (type.size() == 8) |
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value = (T)*(uint64_t*)ptr; |
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else |
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assert(false /* unknown unsigned int type size */); |
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} |
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} else if (type.isReal()) { |
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if (type.size() == sizeof(float)) |
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value = (T)*(float*)ptr; |
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else if (type.size() == sizeof(double)) |
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value = (T)*(double*)ptr; |
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else |
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assert(false /* unknown floating point type */); |
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} else if (type.isBool()) { |
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value = (T)*(bool*)ptr; |
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} else { |
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assert(false /* unknown primitive type */); |
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} |
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} |
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return value; |
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} |
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static String _encodePrimitiveValue(const Object& obj) { |
static String _encodePrimitiveValue(const Object& obj) { |
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return _encodeBlob( _primitiveObjectValueToString(obj) ); |
return _encodeBlob( _primitiveObjectValueToString(obj) ); |
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} |
} |
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s += _encodeBlob(ToString(ENCODING_FORMAT_MINOR_VERSION)); |
s += _encodeBlob(ToString(ENCODING_FORMAT_MINOR_VERSION)); |
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s += _encode(m_root); |
s += _encode(m_root); |
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s += _encode(m_allObjects); |
s += _encode(m_allObjects); |
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s += _encodeBlob(m_name); |
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s += _encodeBlob(m_comment); |
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s += _encode(m_timeCreated); |
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s += _encode(m_timeModified); |
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return _encodeBlob(s); |
return _encodeBlob(s); |
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} |
} |
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void Archive::encode() { |
void Archive::encode() { |
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m_rawData.clear(); |
m_rawData.clear(); |
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String s = MAGIC_START; |
String s = MAGIC_START; |
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m_timeModified = time(NULL); |
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if (m_timeCreated == LIBGIG_EPOCH_TIME) |
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m_timeCreated = m_timeModified; |
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s += _encodeRootBlob(); |
s += _encodeRootBlob(); |
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m_rawData.resize(s.length() + 1); |
m_rawData.resize(s.length() + 1); |
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memcpy(&m_rawData[0], &s[0], s.length() + 1); |
memcpy(&m_rawData[0], &s[0], s.length() + 1); |
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}; |
}; |
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static _Blob _decodeBlob(const char* p, const char* end, bool bThrow = true) { |
static _Blob _decodeBlob(const char* p, const char* end, bool bThrow = true) { |
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if (!bThrow && p >= end) |
if (!bThrow && p >= end) { |
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return (_Blob) { p, end }; |
const _Blob blob = { p, end }; |
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return blob; |
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} |
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size_t sz = 0; |
size_t sz = 0; |
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for (; true; ++p) { |
for (; true; ++p) { |
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if (p >= end) |
if (p >= end) |
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++p; |
++p; |
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if (p + sz > end) |
if (p + sz > end) |
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throw Exception("Decode Error: Premature end of blob"); |
throw Exception("Decode Error: Premature end of blob"); |
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return (_Blob) { p, p + sz }; |
const _Blob blob = { p, p + sz }; |
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return blob; |
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} |
} |
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template<typename T_int> |
template<typename T_int> |
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return s; |
return s; |
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} |
} |
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static time_t _popTimeBlob(const char*& p, const char* end) { |
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const uint64_t i = _popIntBlob<uint64_t>(p, end); |
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return (time_t) i; |
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} |
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DataType _popDataTypeBlob(const char*& p, const char* end) { |
DataType _popDataTypeBlob(const char*& p, const char* end) { |
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_Blob blob = _decodeBlob(p, end); |
_Blob blob = _decodeBlob(p, end); |
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p = blob.p; |
p = blob.p; |
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const ID id = (ID) _popIntBlob<size_t>(p, end); |
const ID id = (ID) _popIntBlob<size_t>(p, end); |
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const size_t size = _popIntBlob<size_t>(p, end); |
const size_t size = _popIntBlob<size_t>(p, end); |
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return (UID) { id, size }; |
const UID uid = { id, size }; |
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return uid; |
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} |
} |
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static UIDChain _popUIDChainBlob(const char*& p, const char* end) { |
static UIDChain _popUIDChainBlob(const char*& p, const char* end) { |
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_popObjectsBlob(p, end); |
_popObjectsBlob(p, end); |
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if (!m_allObjects[m_root]) |
if (!m_allObjects[m_root]) |
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throw Exception("Decode Error: Missing declared root object"); |
throw Exception("Decode Error: Missing declared root object"); |
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m_name = _popStringBlob(p, end); |
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m_comment = _popStringBlob(p, end); |
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m_timeCreated = _popTimeBlob(p, end); |
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m_timeModified = _popTimeBlob(p, end); |
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} |
} |
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void Archive::decode(const RawData& data) { |
void Archive::decode(const RawData& data) { |
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m_rawData = data; |
m_rawData = data; |
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m_allObjects.clear(); |
m_allObjects.clear(); |
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m_isModified = false; |
m_isModified = false; |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
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const char* p = (const char*) &data[0]; |
const char* p = (const char*) &data[0]; |
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const char* end = p + data.size(); |
const char* end = p + data.size(); |
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if (memcmp(p, MAGIC_START, std::min(strlen(MAGIC_START), data.size()))) |
if (memcmp(p, MAGIC_START, std::min(strlen(MAGIC_START), data.size()))) |
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m_root = NO_UID; |
m_root = NO_UID; |
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m_rawData.clear(); |
m_rawData.clear(); |
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m_isModified = false; |
m_isModified = false; |
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m_timeCreated = m_timeModified = LIBGIG_EPOCH_TIME; |
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} |
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String Archive::name() const { |
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return m_name; |
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} |
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void Archive::setName(String name) { |
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if (m_name == name) return; |
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m_name = name; |
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m_isModified = true; |
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} |
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String Archive::comment() const { |
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return m_comment; |
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} |
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void Archive::setComment(String comment) { |
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if (m_comment == comment) return; |
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m_comment = comment; |
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m_isModified = true; |
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} |
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static tm _convertTimeStamp(const time_t& time, time_base_t base) { |
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tm* pTm; |
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switch (base) { |
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case LOCAL_TIME: |
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pTm = localtime(&time); |
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break; |
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case UTC_TIME: |
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pTm = gmtime(&time); |
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break; |
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default: |
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throw Exception("Time stamp with unknown time base (" + ToString((int64_t)base) + ") requested"); |
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} |
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if (!pTm) |
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throw Exception("Failed assembling time stamp structure"); |
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return *pTm; |
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} |
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time_t Archive::timeStampCreated() const { |
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return m_timeCreated; |
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} |
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time_t Archive::timeStampModified() const { |
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return m_timeModified; |
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} |
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tm Archive::dateTimeCreated(time_base_t base) const { |
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return _convertTimeStamp(m_timeCreated, base); |
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} |
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tm Archive::dateTimeModified(time_base_t base) const { |
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return _convertTimeStamp(m_timeModified, base); |
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} |
} |
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void Archive::removeMember(Object& parent, const Member& member) { |
void Archive::removeMember(Object& parent, const Member& member) { |
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return _primitiveObjectValueToString(*pObject); |
return _primitiveObjectValueToString(*pObject); |
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} |
} |
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int64_t Archive::valueAsInt(const Object& object) { |
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if (!object) |
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throw Exception("Invalid object"); |
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if (!object.type().isInteger() && !object.type().isEnum()) |
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throw Exception("Object is neither an integer nor an enum"); |
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const Object* pObject = &object; |
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if (object.type().isPointer()) { |
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const Object& obj = objectByUID(object.uid(1)); |
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if (!obj) return 0; |
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pObject = &obj; |
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} |
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return _primitiveObjectValueToNumber<int64_t>(*pObject); |
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} |
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double Archive::valueAsReal(const Object& object) { |
1061 |
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if (!object) |
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throw Exception("Invalid object"); |
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if (!object.type().isReal()) |
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throw Exception("Object is not an real type"); |
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const Object* pObject = &object; |
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if (object.type().isPointer()) { |
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const Object& obj = objectByUID(object.uid(1)); |
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if (!obj) return 0; |
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pObject = &obj; |
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} |
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return _primitiveObjectValueToNumber<double>(*pObject); |
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} |
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bool Archive::valueAsBool(const Object& object) { |
1075 |
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if (!object) |
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throw Exception("Invalid object"); |
1077 |
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if (!object.type().isBool()) |
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throw Exception("Object is not a bool"); |
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const Object* pObject = &object; |
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if (object.type().isPointer()) { |
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const Object& obj = objectByUID(object.uid(1)); |
1082 |
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if (!obj) return 0; |
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pObject = &obj; |
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} |
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return _primitiveObjectValueToNumber<bool>(*pObject); |
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} |
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// *************** Archive::Syncer *************** |
// *************** Archive::Syncer *************** |
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// * |
// * |
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