* Added breakpad support for Linux.

thirdparty/breakpad/processor/map_serializers-inl.h

@@ -0,0 +1,266 @@
+// 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(u_int32_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<u_int32_t>::Write(m.size(), dest);
+  // Nodes offsets.
+  u_int32_t *offsets = reinterpret_cast<u_int32_t*>(dest);
+  dest += sizeof(u_int32_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<u_int32_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(u_int32_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<u_int32_t>::Write(m.map_.size(), dest);
+  // Nodes offsets.
+  u_int32_t *offsets = reinterpret_cast<u_int32_t*>(dest);
+  dest += sizeof(u_int32_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<u_int32_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(u_int32_t);
+  size += header_size;
+  // In case m.map_ == NULL, we treat it as an empty map:
+  size += sizeof(u_int32_t);
+  if (m->map_) {
+    size += m->map_->size() * sizeof(u_int32_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<u_int32_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<u_int32_t>::Write(0, dest);
+  } else {
+    dest = SimpleSerializer<u_int32_t>::Write(m->map_->size(), dest);
+    u_int32_t *offsets = reinterpret_cast<u_int32_t*>(dest);
+    dest += sizeof(u_int32_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<u_int32_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__