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ppsspp/Common/ChunkFileDo.h
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416 lines
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// Copyright (C) 2003 Dolphin Project.
// 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, version 2.0 or later versions.
// 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 2.0 for more details.
// A copy of the GPL 2.0 should have been included with the program.
// If not, see http://www.gnu.org/licenses/
// Official SVN repository and contact information can be found at
// http://code.google.com/p/dolphin-emu/
#pragma once
// Templates for save state serialization. See ChunkFile.h.
#include "Common/ChunkFile.h"
void Do(PointerWrap &p, std::string &x);
void Do(PointerWrap &p, std::wstring &x); // DEPRECATED, do not save wstrings
void Do(PointerWrap &p, std::u16string &x);
void Do(PointerWrap &p, tm &t);
// Don't use DoHelper_ directly. Just use Do().
// This makes it a compile error if you forget to define DoState() on non-POD.
// Which also can be a problem, for example struct tm is non-POD on linux, for whatever reason...
#ifdef _MSC_VER
template<typename T, bool isPOD = std::is_pod<T>::value, bool isPointer = std::is_pointer<T>::value>
#else
template<typename T, bool isPOD = __is_pod(T), bool isPointer = std::is_pointer<T>::value>
#endif
struct DoHelper_ {
static void DoArray(PointerWrap &p, T *x, int count) {
for (int i = 0; i < count; ++i)
Do(p, x[i]);
}
static void DoThing(PointerWrap &p, T &x) {
DoClass(p, x);
}
};
template<typename T>
struct DoHelper_<T, true, false> {
static void DoArray(PointerWrap &p, T *x, int count) {
p.DoVoid((void *)x, sizeof(T) * count);
}
static void DoThing(PointerWrap &p, T &x) {
p.DoVoid((void *)&x, sizeof(x));
}
};
template<class T>
void DoClass(PointerWrap &p, T &x) {
x.DoState(p);
}
template<class T>
void DoClass(PointerWrap &p, T *&x) {
if (p.mode == PointerWrap::MODE_READ) {
if (x != nullptr)
delete x;
x = new T();
}
x->DoState(p);
}
template<class T>
void DoArray(PointerWrap &p, T *x, int count) {
DoHelper_<T>::DoArray(p, x, count);
}
template<class T>
void Do(PointerWrap &p, T &x) {
DoHelper_<T>::DoThing(p, x);
}
template<class M>
void DoMap(PointerWrap &p, M &x, typename M::mapped_type &default_val) {
unsigned int number = (unsigned int)x.size();
Do(p, number);
switch (p.mode) {
case PointerWrap::MODE_READ:
{
x.clear();
while (number > 0) {
typename M::key_type first = typename M::key_type();
Do(p, first);
typename M::mapped_type second = default_val;
Do(p, second);
x[first] = second;
--number;
}
}
break;
case PointerWrap::MODE_WRITE:
case PointerWrap::MODE_MEASURE:
case PointerWrap::MODE_VERIFY:
{
typename M::iterator itr = x.begin();
while (number > 0) {
typename M::key_type first = itr->first;
Do(p, first);
Do(p, itr->second);
--number;
++itr;
}
}
break;
}
}
template<class K, class T>
void Do(PointerWrap &p, std::map<K, T *> &x) {
if (p.mode == PointerWrap::MODE_READ) {
for (auto it = x.begin(), end = x.end(); it != end; ++it) {
if (it->second != nullptr)
delete it->second;
}
}
T *dv = nullptr;
DoMap(p, x, dv);
}
template<class K, class T>
void Do(PointerWrap &p, std::map<K, T> &x) {
T dv = T();
DoMap(p, x, dv);
}
template<class K, class T>
void Do(PointerWrap &p, std::unordered_map<K, T *> &x) {
if (p.mode == PointerWrap::MODE_READ) {
for (auto it = x.begin(), end = x.end(); it != end; ++it) {
if (it->second != nullptr)
delete it->second;
}
}
T *dv = nullptr;
DoMap(p, x, dv);
}
template<class K, class T>
void Do(PointerWrap &p, std::unordered_map<K, T> &x) {
T dv = T();
DoMap(p, x, dv);
}
template<class M>
void DoMultimap(PointerWrap &p, M &x, typename M::mapped_type &default_val) {
unsigned int number = (unsigned int)x.size();
Do(p, number);
switch (p.mode) {
case PointerWrap::MODE_READ:
{
x.clear();
while (number > 0) {
typename M::key_type first = typename M::key_type();
Do(p, first);
typename M::mapped_type second = default_val;
Do(p, second);
x.insert(std::make_pair(first, second));
--number;
}
}
break;
case PointerWrap::MODE_WRITE:
case PointerWrap::MODE_MEASURE:
case PointerWrap::MODE_VERIFY:
{
typename M::iterator itr = x.begin();
while (number > 0) {
Do(p, itr->first);
Do(p, itr->second);
--number;
++itr;
}
}
break;
}
}
template<class K, class T>
void Do(PointerWrap &p, std::multimap<K, T *> &x) {
if (p.mode == PointerWrap::MODE_READ) {
for (auto it = x.begin(), end = x.end(); it != end; ++it) {
if (it->second != nullptr)
delete it->second;
}
}
T *dv = nullptr;
DoMultimap(p, x, dv);
}
template<class K, class T>
void Do(PointerWrap &p, std::multimap<K, T> &x) {
T dv = T();
DoMultimap(p, x, dv);
}
template<class K, class T>
void Do(PointerWrap &p, std::unordered_multimap<K, T *> &x) {
if (p.mode == PointerWrap::MODE_READ) {
for (auto it = x.begin(), end = x.end(); it != end; ++it) {
if (it->second != nullptr)
delete it->second;
}
}
T *dv = nullptr;
DoMultimap(p, x, dv);
}
template<class K, class T>
void Do(PointerWrap &p, std::unordered_multimap<K, T> &x) {
T dv = T();
DoMultimap(p, x, dv);
}
template<class T>
void DoVector(PointerWrap &p, std::vector<T> &x, T &default_val) {
u32 vec_size = (u32)x.size();
Do(p, vec_size);
x.resize(vec_size, default_val);
if (vec_size > 0)
DoArray(p, &x[0], vec_size);
}
template<class T>
void Do(PointerWrap &p, std::vector<T *> &x) {
T *dv = nullptr;
DoVector(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::vector<T> &x) {
T dv = T();
DoVector(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::vector<T> &x, T &default_val) {
DoVector(p, x, default_val);
}
template<class T>
void DoDeque(PointerWrap &p, std::deque<T> &x, T &default_val) {
u32 deq_size = (u32)x.size();
Do(p, deq_size);
x.resize(deq_size, default_val);
u32 i;
for (i = 0; i < deq_size; i++)
Do(p, x[i]);
}
template<class T>
void Do(PointerWrap &p, std::deque<T *> &x) {
T *dv = nullptr;
DoDeque(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::deque<T> &x) {
T dv = T();
DoDeque(p, x, dv);
}
template<class T>
void DoList(PointerWrap &p, std::list<T> &x, T &default_val) {
u32 list_size = (u32)x.size();
Do(p, list_size);
x.resize(list_size, default_val);
typename std::list<T>::iterator itr, end;
for (itr = x.begin(), end = x.end(); itr != end; ++itr)
Do(p, *itr);
}
template<class T>
void Do(PointerWrap &p, std::list<T *> &x) {
T *dv = nullptr;
Do(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::list<T> &x) {
T dv = T();
DoList(p, x, dv);
}
template<class T>
void Do(PointerWrap &p, std::list<T> &x, T &default_val) {
DoList(p, x, default_val);
}
template <class T>
void DoSet(PointerWrap &p, std::set<T> &x) {
unsigned int number = (unsigned int)x.size();
Do(p, number);
switch (p.mode) {
case PointerWrap::MODE_READ:
{
x.clear();
while (number-- > 0) {
T it = T();
Do(p, it);
x.insert(it);
}
}
break;
case PointerWrap::MODE_WRITE:
case PointerWrap::MODE_MEASURE:
case PointerWrap::MODE_VERIFY:
{
typename std::set<T>::iterator itr = x.begin();
while (number-- > 0)
Do(p, *itr++);
}
break;
default:
ERROR_LOG(SAVESTATE, "Savestate error: invalid mode %d.", p.mode);
}
}
// Store STL sets.
template <class T>
void Do(PointerWrap &p, std::set<T *> &x) {
if (p.mode == PointerWrap::MODE_READ) {
for (auto it = x.begin(), end = x.end(); it != end; ++it) {
if (*it != nullptr)
delete *it;
}
}
DoSet(p, x);
}
template <class T>
void Do(PointerWrap &p, std::set<T> &x) {
DoSet(p, x);
}
template<typename T, typename F>
void Do(PointerWrap &p, swap_struct_t<T, F> &x) {
T v = x.swap();
Do(p, v);
x = v;
}
template<class T>
void DoPointer(PointerWrap &p, T *&x, T *const base) {
// pointers can be more than 2^31 apart, but you're using this function wrong if you need that much range
s32 offset = x - base;
Do(p, offset);
if (p.mode == PointerWrap::MODE_READ)
x = base + offset;
}
template<class T, LinkedListItem<T> *(*TNew)(), void (*TFree)(LinkedListItem<T> *), void (*TDo)(PointerWrap &, T *)>
void DoLinkedList(PointerWrap &p, LinkedListItem<T> *&list_start, LinkedListItem<T> **list_end = nullptr) {
LinkedListItem<T> *list_cur = list_start;
LinkedListItem<T> *prev = nullptr;
while (true) {
u8 shouldExist = (list_cur ? 1 : 0);
Do(p, shouldExist);
if (shouldExist == 1) {
LinkedListItem<T> *cur = list_cur ? list_cur : TNew();
TDo(p, (T *)cur);
if (!list_cur) {
if (p.mode == PointerWrap::MODE_READ) {
cur->next = 0;
list_cur = cur;
if (prev)
prev->next = cur;
else
list_start = cur;
} else {
TFree(cur);
continue;
}
}
} else {
if (shouldExist != 0) {
WARN_LOG(SAVESTATE, "Savestate failure: incorrect item marker %d", shouldExist);
p.SetError(p.ERROR_FAILURE);
}
if (p.mode == PointerWrap::MODE_READ) {
if (prev)
prev->next = nullptr;
if (list_end)
*list_end = prev;
if (list_cur) {
if (list_start == list_cur)
list_start = nullptr;
do {
LinkedListItem<T> *next = list_cur->next;
TFree(list_cur);
list_cur = next;
} while (list_cur);
}
}
break;
}
prev = list_cur;
list_cur = list_cur->next;
}
}