1    :  // Copyright 2015 Google Inc. All Rights Reserved.
   2    :  //
   3    :  // Licensed under the Apache License, Version 2.0 (the "License");
   4    :  // you may not use this file except in compliance with the License.
   5    :  // You may obtain a copy of the License at
   6    :  //
   7    :  //     http://www.apache.org/licenses/LICENSE-2.0
   8    :  //
   9    :  // Unless required by applicable law or agreed to in writing, software
  10    :  // distributed under the License is distributed on an "AS IS" BASIS,
  11    :  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  12    :  // See the License for the specific language governing permissions and
  13    :  // limitations under the License.
  14    :  
  15    :  #include "syzygy/bard/events/heap_set_information_event.h"
  16    :  
  17    :  #include "syzygy/bard/backdrops/heap_backdrop.h"
  18    :  #include "syzygy/trace/common/clock.h"
  19    :  
  20    :  namespace bard {
  21    :  namespace events {
  22    :  
  23    :  HeapSetInformationEvent::HeapSetInformationEvent(
  24    :      HANDLE trace_heap,
  25    :      HEAP_INFORMATION_CLASS info_class,
  26    :      PVOID info,
  27    :      SIZE_T info_length,
  28    :      BOOL trace_succeeded)
  29    :      : trace_heap_(trace_heap),
  30    :        info_class_(info_class),
  31    :        info_(info),
  32    :        info_length_(info_length),
  33  E :        trace_succeeded_(trace_succeeded) {
  34  E :  }
  35    :  
  36    :  bool HeapSetInformationEvent::Save(const EventInterface* const event,
  37  E :                                     core::OutArchive* out_archive) {
  38  E :    DCHECK_NE(static_cast<EventInterface*>(nullptr), event);
  39  E :    DCHECK_NE(static_cast<core::OutArchive*>(nullptr), out_archive);
  40    :  
  41    :    const HeapSetInformationEvent* derived_event =
  42  E :        reinterpret_cast<const HeapSetInformationEvent*>(event);
  43    :  
  44    :    return out_archive->Save(
  45    :               reinterpret_cast<uintptr_t>(derived_event->trace_heap_)) &&
  46    :           out_archive->Save(
  47    :               static_cast<uint32_t>(derived_event->info_class_)) &&
  48    :           out_archive->Save(
  49    :               reinterpret_cast<uintptr_t>(derived_event->info_)) &&
  50    :           out_archive->Save(derived_event->info_length_) &&
  51  E :           out_archive->Save(derived_event->trace_succeeded_);
  52  E :  }
  53    :  
  54    :  scoped_ptr<HeapSetInformationEvent> HeapSetInformationEvent::Load(
  55  E :      core::InArchive* in_archive) {
  56  E :    DCHECK_NE(static_cast<core::InArchive*>(nullptr), in_archive);
  57    :  
  58    :    uintptr_t trace_heap;
  59    :    uint32_t info_class;
  60    :    uintptr_t info;
  61    :    SIZE_T info_length;
  62    :    BOOL trace_succeeded;
  63    :    if (in_archive->Load(&trace_heap) &&
  64    :        in_archive->Load(&info_class) &&
  65    :        in_archive->Load(&info) &&
  66    :        in_archive->Load(&info_length) &&
  67  E :        in_archive->Load(&trace_succeeded)) {
  68    :      return scoped_ptr<HeapSetInformationEvent>(
  69    :          new HeapSetInformationEvent(
  70    :              reinterpret_cast<HANDLE>(trace_heap),
  71    :              static_cast<HEAP_INFORMATION_CLASS>(info_class),
  72    :              reinterpret_cast<PVOID>(info),
  73    :              info_length,
  74  E :              trace_succeeded));
  75    :    }
  76  i :    return nullptr;
  77  E :  }
  78    :  
  79  E :  bool HeapSetInformationEvent::Play(void* backdrop) {
  80  E :    DCHECK_NE(static_cast<void*>(nullptr), backdrop);
  81    :  
  82    :    using bard::backdrops::HeapBackdrop;
  83  E :    HeapBackdrop* heap_backdrop = reinterpret_cast<HeapBackdrop*>(backdrop);
  84    :  
  85  E :    HANDLE live_heap = INVALID_HANDLE_VALUE;
  86    :  
  87  E :    if (!heap_backdrop->heap_map().GetLiveFromTrace(trace_heap_, &live_heap))
  88  i :      return false;
  89    :  
  90  E :    uint64_t t0 = ::trace::common::GetTsc();
  91    :    BOOL live_succeeded = heap_backdrop->HeapSetInformation(
  92  E :        live_heap, info_class_, info_, info_length_);
  93  E :    uint64_t t1 = ::trace::common::GetTsc();
  94    :  
  95  E :    if (live_succeeded != trace_succeeded_) {
  96  E :      LOG(ERROR) << "HeapSetInformation "
  97    :                 << (live_succeeded ? "succeeded" : "failed")
  98    :                 << " when it was supposed to "
  99    :                 << (trace_succeeded_ ? "succeed" : "fail") << ".";
 100  E :      return false;
 101    :    }
 102    :  
 103  E :    heap_backdrop->UpdateStats(type(), t1 - t0);
 104    :  
 105  E :    return true;
 106  E :  }
 107    :  
 108  E :  bool HeapSetInformationEvent::Equals(const EventInterface* rhs) const {
 109  E :    DCHECK_NE(static_cast<EventInterface*>(nullptr), rhs);
 110    :  
 111  E :    if (rhs->type() != kHeapSetInformationEvent)
 112  i :      return false;
 113    :  
 114  E :    const auto e = reinterpret_cast<const HeapSetInformationEvent*>(rhs);
 115    :    if (trace_heap_ != e->trace_heap_ || info_class_ != e->info_class_ ||
 116    :        info_ != e->info_ || info_length_ != e->info_length_ ||
 117  E :        trace_succeeded_ != e->trace_succeeded_) {
 118  E :      return false;
 119    :    }
 120    :  
 121  E :    return true;
 122  E :  }
 123    :  
 124    :  }  // namespace events
 125    :  }  // namespace bard