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// Copyright (c) 2010, Google Inc.
// 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 Google Inc. 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 OR CONTRIBUTORS 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.
//
// map_serializers_inl.h: implementation for serializing std::map and its
// wrapper classes.
//
// See map_serializers.h for documentation.
//
// Author: Siyang Xie (lambxsy@google.com)
#ifndef PROCESSOR_MAP_SERIALIZERS_INL_H__
#define PROCESSOR_MAP_SERIALIZERS_INL_H__
#include <map>
#include <string>
#include "processor/map_serializers.h"
#include "processor/simple_serializer.h"
#include "processor/address_map-inl.h"
#include "processor/range_map-inl.h"
#include "processor/contained_range_map-inl.h"
#include "processor/logging.h"
namespace google_breakpad {
template<typename Key, typename Value>
size_t StdMapSerializer<Key, Value>::SizeOf(
const std::map<Key, Value> &m) const {
size_t size = 0;
size_t header_size = (1 + m.size()) * sizeof(uint32_t);
size += header_size;
typename std::map<Key, Value>::const_iterator iter;
for (iter = m.begin(); iter != m.end(); ++iter) {
size += key_serializer_.SizeOf(iter->first);
size += value_serializer_.SizeOf(iter->second);
}
return size;
}
template<typename Key, typename Value>
char *StdMapSerializer<Key, Value>::Write(const std::map<Key, Value> &m,
char *dest) const {
if (!dest) {
BPLOG(ERROR) << "StdMapSerializer failed: write to NULL address.";
return NULL;
}
char *start_address = dest;
// Write header:
// Number of nodes.
dest = SimpleSerializer<uint32_t>::Write(m.size(), dest);
// Nodes offsets.
uint32_t *offsets = reinterpret_cast<uint32_t*>(dest);
dest += sizeof(uint32_t) * m.size();
char *key_address = dest;
dest += sizeof(Key) * m.size();
// Traverse map.
typename std::map<Key, Value>::const_iterator iter;
int index = 0;
for (iter = m.begin(); iter != m.end(); ++iter, ++index) {
offsets[index] = static_cast<uint32_t>(dest - start_address);
key_address = key_serializer_.Write(iter->first, key_address);
dest = value_serializer_.Write(iter->second, dest);
}
return dest;
}
template<typename Key, typename Value>
char *StdMapSerializer<Key, Value>::Serialize(
const std::map<Key, Value> &m, unsigned int *size) const {
// Compute size of memory to be allocated.
unsigned int size_to_alloc = SizeOf(m);
// Allocate memory.
char *serialized_data = new char[size_to_alloc];
if (!serialized_data) {
BPLOG(INFO) << "StdMapSerializer memory allocation failed.";
if (size) *size = 0;
return NULL;
}
// Write serialized data into memory.
Write(m, serialized_data);
if (size) *size = size_to_alloc;
return serialized_data;
}
template<typename Address, typename Entry>
size_t RangeMapSerializer<Address, Entry>::SizeOf(
const RangeMap<Address, Entry> &m) const {
size_t size = 0;
size_t header_size = (1 + m.map_.size()) * sizeof(uint32_t);
size += header_size;
typename std::map<Address, Range>::const_iterator iter;
for (iter = m.map_.begin(); iter != m.map_.end(); ++iter) {
// Size of key (high address).
size += address_serializer_.SizeOf(iter->first);
// Size of base (low address).
size += address_serializer_.SizeOf(iter->second.base());
// Size of entry.
size += entry_serializer_.SizeOf(iter->second.entry());
}
return size;
}
template<typename Address, typename Entry>
char *RangeMapSerializer<Address, Entry>::Write(
const RangeMap<Address, Entry> &m, char *dest) const {
if (!dest) {
BPLOG(ERROR) << "RangeMapSerializer failed: write to NULL address.";
return NULL;
}
char *start_address = dest;
// Write header:
// Number of nodes.
dest = SimpleSerializer<uint32_t>::Write(m.map_.size(), dest);
// Nodes offsets.
uint32_t *offsets = reinterpret_cast<uint32_t*>(dest);
dest += sizeof(uint32_t) * m.map_.size();
char *key_address = dest;
dest += sizeof(Address) * m.map_.size();
// Traverse map.
typename std::map<Address, Range>::const_iterator iter;
int index = 0;
for (iter = m.map_.begin(); iter != m.map_.end(); ++iter, ++index) {
offsets[index] = static_cast<uint32_t>(dest - start_address);
key_address = address_serializer_.Write(iter->first, key_address);
dest = address_serializer_.Write(iter->second.base(), dest);
dest = entry_serializer_.Write(iter->second.entry(), dest);
}
return dest;
}
template<typename Address, typename Entry>
char *RangeMapSerializer<Address, Entry>::Serialize(
const RangeMap<Address, Entry> &m, unsigned int *size) const {
// Compute size of memory to be allocated.
unsigned int size_to_alloc = SizeOf(m);
// Allocate memory.
char *serialized_data = new char[size_to_alloc];
if (!serialized_data) {
BPLOG(INFO) << "RangeMapSerializer memory allocation failed.";
if (size) *size = 0;
return NULL;
}
// Write serialized data into memory.
Write(m, serialized_data);
if (size) *size = size_to_alloc;
return serialized_data;
}
template<class AddrType, class EntryType>
size_t ContainedRangeMapSerializer<AddrType, EntryType>::SizeOf(
const ContainedRangeMap<AddrType, EntryType> *m) const {
size_t size = 0;
size_t header_size = addr_serializer_.SizeOf(m->base_)
+ entry_serializer_.SizeOf(m->entry_)
+ sizeof(uint32_t);
size += header_size;
// In case m.map_ == NULL, we treat it as an empty map:
size += sizeof(uint32_t);
if (m->map_) {
size += m->map_->size() * sizeof(uint32_t);
typename Map::const_iterator iter;
for (iter = m->map_->begin(); iter != m->map_->end(); ++iter) {
size += addr_serializer_.SizeOf(iter->first);
// Recursive calculation of size:
size += SizeOf(iter->second);
}
}
return size;
}
template<class AddrType, class EntryType>
char *ContainedRangeMapSerializer<AddrType, EntryType>::Write(
const ContainedRangeMap<AddrType, EntryType> *m, char *dest) const {
if (!dest) {
BPLOG(ERROR) << "StdMapSerializer failed: write to NULL address.";
return NULL;
}
dest = addr_serializer_.Write(m->base_, dest);
dest = SimpleSerializer<uint32_t>::Write(entry_serializer_.SizeOf(m->entry_),
dest);
dest = entry_serializer_.Write(m->entry_, dest);
// Write map<<AddrType, ContainedRangeMap*>:
char *map_address = dest;
if (m->map_ == NULL) {
dest = SimpleSerializer<uint32_t>::Write(0, dest);
} else {
dest = SimpleSerializer<uint32_t>::Write(m->map_->size(), dest);
uint32_t *offsets = reinterpret_cast<uint32_t*>(dest);
dest += sizeof(uint32_t) * m->map_->size();
char *key_address = dest;
dest += sizeof(AddrType) * m->map_->size();
// Traverse map.
typename Map::const_iterator iter;
int index = 0;
for (iter = m->map_->begin(); iter != m->map_->end(); ++iter, ++index) {
offsets[index] = static_cast<uint32_t>(dest - map_address);
key_address = addr_serializer_.Write(iter->first, key_address);
// Recursively write.
dest = Write(iter->second, dest);
}
}
return dest;
}
template<class AddrType, class EntryType>
char *ContainedRangeMapSerializer<AddrType, EntryType>::Serialize(
const ContainedRangeMap<AddrType, EntryType> *m, unsigned int *size) const {
unsigned int size_to_alloc = SizeOf(m);
// Allocating memory.
char *serialized_data = new char[size_to_alloc];
if (!serialized_data) {
BPLOG(INFO) << "ContainedRangeMapSerializer memory allocation failed.";
if (size) *size = 0;
return NULL;
}
Write(m, serialized_data);
if (size) *size = size_to_alloc;
return serialized_data;
}
} // namespace google_breakpad
#endif // PROCESSOR_MAP_SERIALIZERS_INL_H__