diff options
| author | Dawid Potocki <dawid@dawidpotocki.com> | 2024-03-05 14:09:27 +1300 |
|---|---|---|
| committer | Dawid Potocki <dawid@dawidpotocki.com> | 2024-03-05 20:34:15 +1300 |
| commit | 063e15900bda8453fb0fc6751e78d064501ccbae (patch) | |
| tree | a4cd5f01dbca33a262333aff10e1e035217a30c8 /externals/breakpad/src/processor/map_serializers.h | |
| parent | 537296095ab24eddcb196b5ef98004f91de9c8c2 (diff) | |
Diffstat (limited to 'externals/breakpad/src/processor/map_serializers.h')
| -rw-r--r-- | externals/breakpad/src/processor/map_serializers.h | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/externals/breakpad/src/processor/map_serializers.h b/externals/breakpad/src/processor/map_serializers.h new file mode 100644 index 0000000000..54153f8a2e --- /dev/null +++ b/externals/breakpad/src/processor/map_serializers.h @@ -0,0 +1,167 @@ +// Copyright 2010 Google LLC +// +// 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 LLC 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.h: defines templates for serializing std::map and its +// wrappers: AddressMap, RangeMap, and ContainedRangeMap. +// +// Author: Siyang Xie (lambxsy@google.com) + + +#ifndef PROCESSOR_MAP_SERIALIZERS_H__ +#define PROCESSOR_MAP_SERIALIZERS_H__ + +#include <map> +#include <string> + +#include "processor/simple_serializer.h" + +#include "processor/address_map-inl.h" +#include "processor/range_map-inl.h" +#include "processor/contained_range_map-inl.h" + +namespace google_breakpad { + +// StdMapSerializer allocates memory and serializes an std::map instance into a +// chunk of memory data. +template<typename Key, typename Value> +class StdMapSerializer { + public: + // Calculate the memory size of serialized data. + size_t SizeOf(const std::map<Key, Value>& m) const; + + // Writes the serialized data to memory with start address = dest, + // and returns the "end" of data, i.e., return the address follow the final + // byte of data. + // NOTE: caller has to allocate enough memory before invoke Write() method. + char* Write(const std::map<Key, Value>& m, char* dest) const; + + // Serializes a std::map object into a chunk of memory data with format + // described in "StaticMap.h" comment. + // Returns a pointer to the serialized data. If size != NULL, *size is set + // to the size of serialized data, i.e., SizeOf(m). + // Caller has the ownership of memory allocated as "new char[]". + char* Serialize(const std::map<Key, Value>& m, unsigned int* size) const; + + private: + SimpleSerializer<Key> key_serializer_; + SimpleSerializer<Value> value_serializer_; +}; + +// AddressMapSerializer allocates memory and serializes an AddressMap into a +// chunk of memory data. +template<typename Addr, typename Entry> +class AddressMapSerializer { + public: + // Calculate the memory size of serialized data. + size_t SizeOf(const AddressMap<Addr, Entry>& m) const { + return std_map_serializer_.SizeOf(m.map_); + } + + // Write the serialized data to specified memory location. Return the "end" + // of data, i.e., return the address after the final byte of data. + // NOTE: caller has to allocate enough memory before invoke Write() method. + char* Write(const AddressMap<Addr, Entry>& m, char* dest) const { + return std_map_serializer_.Write(m.map_, dest); + } + + // Serializes an AddressMap object into a chunk of memory data. + // Returns a pointer to the serialized data. If size != NULL, *size is set + // to the size of serialized data, i.e., SizeOf(m). + // Caller has the ownership of memory allocated as "new char[]". + char* Serialize(const AddressMap<Addr, Entry>& m, unsigned int* size) const { + return std_map_serializer_.Serialize(m.map_, size); + } + + private: + // AddressMapSerializer is a simple wrapper of StdMapSerializer, just as + // AddressMap is a simple wrapper of std::map. + StdMapSerializer<Addr, Entry> std_map_serializer_; +}; + +// RangeMapSerializer allocates memory and serializes a RangeMap instance into a +// chunk of memory data. +template<typename Address, typename Entry> +class RangeMapSerializer { + public: + // Calculate the memory size of serialized data. + size_t SizeOf(const RangeMap<Address, Entry>& m) const; + + // Write the serialized data to specified memory location. Return the "end" + // of data, i.e., return the address after the final byte of data. + // NOTE: caller has to allocate enough memory before invoke Write() method. + char* Write(const RangeMap<Address, Entry>& m, char* dest) const; + + // Serializes a RangeMap object into a chunk of memory data. + // Returns a pointer to the serialized data. If size != NULL, *size is set + // to the size of serialized data, i.e., SizeOf(m). + // Caller has the ownership of memory allocated as "new char[]". + char* Serialize(const RangeMap<Address, Entry>& m, unsigned int* size) const; + + private: + // Convenient type name for Range. + typedef typename RangeMap<Address, Entry>::Range Range; + + // Serializer for RangeMap's key and Range::base_. + SimpleSerializer<Address> address_serializer_; + // Serializer for RangeMap::Range::entry_. + SimpleSerializer<Entry> entry_serializer_; +}; + +// ContainedRangeMapSerializer allocates memory and serializes a +// ContainedRangeMap instance into a chunk of memory data. +template<class AddrType, class EntryType> +class ContainedRangeMapSerializer { + public: + // Calculate the memory size of serialized data. + size_t SizeOf(const ContainedRangeMap<AddrType, EntryType>* m) const; + + // Write the serialized data to specified memory location. Return the "end" + // of data, i.e., return the address after the final byte of data. + // NOTE: caller has to allocate enough memory before invoke Write() method. + char* Write(const ContainedRangeMap<AddrType, EntryType>* m, + char* dest) const; + + // Serializes a ContainedRangeMap object into a chunk of memory data. + // Returns a pointer to the serialized data. If size != NULL, *size is set + // to the size of serialized data, i.e., SizeOf(m). + // Caller has the ownership of memory allocated as "new char[]". + char* Serialize(const ContainedRangeMap<AddrType, EntryType>* m, + unsigned int* size) const; + + private: + // Convenient type name for the underlying map type. + typedef std::map<AddrType, ContainedRangeMap<AddrType, EntryType>*> Map; + + // Serializer for addresses and entries stored in ContainedRangeMap. + SimpleSerializer<AddrType> addr_serializer_; + SimpleSerializer<EntryType> entry_serializer_; +}; + +} // namespace google_breakpad + +#endif // PROCESSOR_MAP_SERIALIZERS_H__ |