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third_party/crashpad/crashpad/snapshot/win/process_snapshot_win.h

Index: third_party/crashpad/crashpad/snapshot/win/process_snapshot_win.h
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+// Copyright 2015 The Crashpad Authors. All rights reserved.
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+#ifndef CRASHPAD_SNAPSHOT_WIN_PROCESS_SNAPSHOT_WIN_H_
+#define CRASHPAD_SNAPSHOT_WIN_PROCESS_SNAPSHOT_WIN_H_
+
+#include <windows.h>
+#include <sys/time.h>
+
+#include <map>
+#include <string>
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "client/crashpad_info.h"
+#include "snapshot/crashpad_info_client_options.h"
+#include "snapshot/exception_snapshot.h"
+#include "snapshot/memory_map_region_snapshot.h"
+#include "snapshot/memory_snapshot.h"
+#include "snapshot/module_snapshot.h"
+#include "snapshot/process_snapshot.h"
+#include "snapshot/system_snapshot.h"
+#include "snapshot/thread_snapshot.h"
+#include "snapshot/win/exception_snapshot_win.h"
+#include "snapshot/win/memory_map_region_snapshot_win.h"
+#include "snapshot/win/memory_snapshot_win.h"
+#include "snapshot/win/module_snapshot_win.h"
+#include "snapshot/win/system_snapshot_win.h"
+#include "snapshot/win/thread_snapshot_win.h"
+#include "util/misc/initialization_state_dcheck.h"
+#include "util/misc/uuid.h"
+#include "util/win/address_types.h"
+#include "util/win/process_structs.h"
+#include "util/stdlib/pointer_container.h"
+
+namespace crashpad {
+
+//! \brief A ProcessSnapshot of a running (or crashed) process running on a
+//!     Windows system.
+class ProcessSnapshotWin final : public ProcessSnapshot {
+ public:
+  ProcessSnapshotWin();
+  ~ProcessSnapshotWin() override;
+
+  //! \brief Initializes the object.
+  //!
+  //! \param[in] process The handle to create a snapshot from.
+  //! \param[in] suspension_state Whether \a process has been suspended by the
+  //!     caller.
+  //! \param[in] debug_critical_section_address The address in the target
+  //!     process's address space of a `CRITICAL_SECTION` allocated with valid
+  //!     `.DebugInfo`. Used as a starting point to walk the process's locks.
+  //!     May be `0`.
+  //!
+  //! \return `true` if the snapshot could be created, `false` otherwise with
+  //!     an appropriate message logged.
+  //!
+  //! \sa ScopedProcessSuspend
+  bool Initialize(HANDLE process,
+                  ProcessSuspensionState suspension_state,
+                  WinVMAddress debug_critical_section_address);
+
+  //! \brief Initializes the object's exception.
+  //!
+  //! This populates the data to be returned by Exception().
+  //!
+  //! This method must not be called until after a successful call to
+  //! Initialize().
+  //!
+  //! \param[in] exception_information_address The address in the client
+  //!     process's address space of an ExceptionInformation structure.
+  //!
+  //! \return `true` if the exception information could be initialized, `false`
+  //!     otherwise with an appropriate message logged. When this method returns
+  //!     `false`, the ProcessSnapshotWin object's validity remains unchanged.
+  bool InitializeException(WinVMAddress exception_information_address);
+
+  //! \brief Sets the value to be returned by ReportID().
+  //!
+  //! The crash report ID is under the control of the snapshot producer, which
+  //! may call this method to set the report ID. If this is not done, ReportID()
+  //! will return an identifier consisting entirely of zeroes.
+  void SetReportID(const UUID& report_id) { report_id_ = report_id; }
+
+  //! \brief Sets the value to be returned by ClientID().
+  //!
+  //! The client ID is under the control of the snapshot producer, which may
+  //! call this method to set the client ID. If this is not done, ClientID()
+  //! will return an identifier consisting entirely of zeroes.
+  void SetClientID(const UUID& client_id) { client_id_ = client_id; }
+
+  //! \brief Sets the value to be returned by AnnotationsSimpleMap().
+  //!
+  //! All process annotations are under the control of the snapshot producer,
+  //! which may call this method to establish these annotations. Contrast this
+  //! with module annotations, which are under the control of the process being
+  //! snapshotted.
+  void SetAnnotationsSimpleMap(
+      const std::map<std::string, std::string>& annotations_simple_map) {
+    annotations_simple_map_ = annotations_simple_map;
+  }
+
+  //! \brief Returns options from CrashpadInfo structures found in modules in
+  //!     the process.
+  //!
+  //! \param[out] options Options set in CrashpadInfo structures in modules in
+  //!     the process.
+  void GetCrashpadOptions(CrashpadInfoClientOptions* options);
+
+  // ProcessSnapshot:
+
+  pid_t ProcessID() const override;
+  pid_t ParentProcessID() const override;
+  void SnapshotTime(timeval* snapshot_time) const override;
+  void ProcessStartTime(timeval* start_time) const override;
+  void ProcessCPUTimes(timeval* user_time, timeval* system_time) const override;
+  void ReportID(UUID* report_id) const override;
+  void ClientID(UUID* client_id) const override;
+  const std::map<std::string, std::string>& AnnotationsSimpleMap()
+      const override;
+  const SystemSnapshot* System() const override;
+  std::vector<const ThreadSnapshot*> Threads() const override;
+  std::vector<const ModuleSnapshot*> Modules() const override;
+  const ExceptionSnapshot* Exception() const override;
+  std::vector<const MemoryMapRegionSnapshot*> MemoryMap() const override;
+  std::vector<HandleSnapshot> Handles() const override;
+  std::vector<const MemorySnapshot*> ExtraMemory() const override;
+
+ private:
+  // Initializes threads_ on behalf of Initialize().
+  void InitializeThreads();
+
+  // Initializes modules_ on behalf of Initialize().
+  void InitializeModules();
+
+  // Initializes various memory blocks reachable from the PEB on behalf of
+  // Initialize().
+  template <class Traits>
+  void InitializePebData(WinVMAddress debug_critical_section_address);
+
+  void AddMemorySnapshot(WinVMAddress address,
+                         WinVMSize size,
+                         PointerVector<internal::MemorySnapshotWin>* into);
+
+  template <class Traits>
+  void AddMemorySnapshotForUNICODE_STRING(
+      const process_types::UNICODE_STRING<Traits>& us,
+      PointerVector<internal::MemorySnapshotWin>* into);
+
+  template <class Traits>
+  void AddMemorySnapshotForLdrLIST_ENTRY(
+      const process_types::LIST_ENTRY<Traits>& le,
+      size_t offset_of_member,
+      PointerVector<internal::MemorySnapshotWin>* into);
+
+  WinVMSize DetermineSizeOfEnvironmentBlock(
+      WinVMAddress start_of_environment_block);
+
+  // Starting from the address of a CRITICAL_SECTION, add a lock and, if valid,
+  // its .DebugInfo field to the snapshot.
+  template <class Traits>
+  void ReadLock(WinVMAddress start,
+                PointerVector<internal::MemorySnapshotWin>* into);
+
+  internal::SystemSnapshotWin system_;
+  PointerVector<internal::MemorySnapshotWin> extra_memory_;
+  PointerVector<internal::ThreadSnapshotWin> threads_;
+  PointerVector<internal::ModuleSnapshotWin> modules_;
+  scoped_ptr<internal::ExceptionSnapshotWin> exception_;
+  PointerVector<internal::MemoryMapRegionSnapshotWin> memory_map_;
+  ProcessReaderWin process_reader_;
+  UUID report_id_;
+  UUID client_id_;
+  std::map<std::string, std::string> annotations_simple_map_;
+  timeval snapshot_time_;
+  InitializationStateDcheck initialized_;
+
+  DISALLOW_COPY_AND_ASSIGN(ProcessSnapshotWin);
+};
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_SNAPSHOT_WIN_PROCESS_SNAPSHOT_WIN_H_