Add ProcessSnapshotMac.

R=rsesek@chromium.org

Review URL: https://codereview.chromium.org/650223007

snapshot/mac/process_snapshot_mac.cc

@@ -0,0 +1,161 @@
+// Copyright 2014 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.
+
+#include "snapshot/mac/process_snapshot_mac.h"
+
+namespace crashpad {
+
+ProcessSnapshotMac::ProcessSnapshotMac()
+    : ProcessSnapshot(),
+      system_(),
+      threads_(),
+      modules_(),
+      exception_(),
+      process_reader_(),
+      snapshot_time_(),
+      initialized_() {
+}
+
+ProcessSnapshotMac::~ProcessSnapshotMac() {
+}
+
+bool ProcessSnapshotMac::Initialize(task_t task) {
+  INITIALIZATION_STATE_SET_INITIALIZING(initialized_);
+
+  if (gettimeofday(&snapshot_time_, nullptr) != 0) {
+    PLOG(ERROR) << "gettimeofday";
+    return false;
+  }
+
+  if (!process_reader_.Initialize(task)) {
+    return false;
+  }
+
+  system_.Initialize(&process_reader_, &snapshot_time_);
+
+  InitializeThreads();
+  InitializeModules();
+
+  INITIALIZATION_STATE_SET_VALID(initialized_);
+  return true;
+}
+
+bool ProcessSnapshotMac::InitializeException(
+    thread_t exception_thread,
+    exception_type_t exception,
+    const mach_exception_data_type_t* code,
+    mach_msg_type_number_t code_count,
+    thread_state_flavor_t flavor,
+    const natural_t* state,
+    mach_msg_type_number_t state_count) {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  DCHECK(!exception_);
+
+  exception_.reset(new internal::ExceptionSnapshotMac());
+  if (!exception_->Initialize(&process_reader_,
+                              exception_thread,
+                              exception,
+                              code,
+                              code_count,
+                              flavor,
+                              state,
+                              state_count)) {
+    exception_.reset();
+    return false;
+  }
+
+  return true;
+}
+
+pid_t ProcessSnapshotMac::ProcessID() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  return process_reader_.ProcessID();
+}
+
+pid_t ProcessSnapshotMac::ParentProcessID() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  return process_reader_.ProcessID();
+}
+
+void ProcessSnapshotMac::SnapshotTime(timeval* snapshot_time) const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  *snapshot_time = snapshot_time_;
+}
+
+void ProcessSnapshotMac::ProcessStartTime(timeval* start_time) const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  process_reader_.StartTime(start_time);
+}
+
+void ProcessSnapshotMac::ProcessCPUTimes(timeval* user_time,
+                                         timeval* system_time) const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  process_reader_.CPUTimes(user_time, system_time);
+}
+
+const SystemSnapshot* ProcessSnapshotMac::System() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  return &system_;
+}
+
+std::vector<const ThreadSnapshot*> ProcessSnapshotMac::Threads() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  std::vector<const ThreadSnapshot*> threads;
+  for (internal::ThreadSnapshotMac* thread : threads_) {
+    threads.push_back(thread);
+  }
+  return threads;
+}
+
+std::vector<const ModuleSnapshot*> ProcessSnapshotMac::Modules() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  std::vector<const ModuleSnapshot*> modules;
+  for (internal::ModuleSnapshotMac* module : modules_) {
+    modules.push_back(module);
+  }
+  return modules;
+}
+
+const ExceptionSnapshot* ProcessSnapshotMac::Exception() const {
+  INITIALIZATION_STATE_DCHECK_VALID(initialized_);
+  return exception_.get();
+}
+
+void ProcessSnapshotMac::InitializeThreads() {
+  const std::vector<ProcessReader::Thread>& process_reader_threads =
+      process_reader_.Threads();
+  for (const ProcessReader::Thread& process_reader_thread :
+       process_reader_threads) {
+    internal::ThreadSnapshotMac* thread = new internal::ThreadSnapshotMac();
+    threads_.push_back(thread);
+    if (!thread->Initialize(&process_reader_, process_reader_thread)) {
+      threads_.pop_back();
+    }
+  }
+}
+
+void ProcessSnapshotMac::InitializeModules() {
+  const std::vector<ProcessReader::Module>& process_reader_modules =
+      process_reader_.Modules();
+  for (const ProcessReader::Module& process_reader_module :
+       process_reader_modules) {
+    internal::ModuleSnapshotMac* module = new internal::ModuleSnapshotMac();
+    modules_.push_back(module);
+    if (!module->Initialize(&process_reader_, process_reader_module)) {
+      modules_.pop_back();
+    }
+  }
+}
+
+}  // namespace crashpad

snapshot/mac/process_snapshot_mac.h

@@ -0,0 +1,107 @@
+// Copyright 2014 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_MAC_PROCESS_SNAPSHOT_MAC_H_
+#define CRASHPAD_SNAPSHOT_MAC_PROCESS_SNAPSHOT_MAC_H_
+
+#include <mach/mach.h>
+#include <sys/time.h>
+#include <unistd.h>
+
+#include <vector>
+
+#include "base/basictypes.h"
+#include "base/memory/scoped_ptr.h"
+#include "snapshot/exception_snapshot.h"
+#include "snapshot/mac/exception_snapshot_mac.h"
+#include "snapshot/mac/module_snapshot_mac.h"
+#include "snapshot/mac/process_reader.h"
+#include "snapshot/mac/system_snapshot_mac.h"
+#include "snapshot/mac/thread_snapshot_mac.h"
+#include "snapshot/module_snapshot.h"
+#include "snapshot/process_snapshot.h"
+#include "snapshot/system_snapshot.h"
+#include "snapshot/thread_snapshot.h"
+#include "util/misc/initialization_state_dcheck.h"
+#include "util/stdlib/pointer_container.h"
+
+namespace crashpad {
+
+//! \brief A ProcessSnapshot of a running (or crashed) process running on a Mac
+//!     OS X system.
+class ProcessSnapshotMac final : public ProcessSnapshot {
+ public:
+  ProcessSnapshotMac();
+  ~ProcessSnapshotMac();
+
+  //! \brief Initializes the object.
+  //!
+  //! \param[in] task The task to create a snapshot from.
+  //!
+  //! \return `true` if the snapshot could be created, `false` otherwise with
+  //!     an appropriate message logged.
+  bool Initialize(task_t task);
+
+  //! \brief Initializes the object’s exception.
+  //!
+  //! This populates the data to be returned by Exception(). The parameters may
+  //! be passed directly through from a Mach exception handler.
+  //!
+  //! This method must not be called until after a successful call to
+  //! Initialize().
+  //!
+  //! \return `true` if the exception information could be initialized, `false`
+  //!     otherwise with an appropriate message logged. When this method returns
+  //!     `false`, the ProcessSnapshotMac object’s validity remains unchanged.
+  bool InitializeException(thread_t exception_thread,
+                           exception_type_t exception,
+                           const mach_exception_data_type_t* code,
+                           mach_msg_type_number_t code_count,
+                           thread_state_flavor_t flavor,
+                           const natural_t* state,
+                           mach_msg_type_number_t state_count);
+
+  // 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;
+  const SystemSnapshot* System() const override;
+  std::vector<const ThreadSnapshot*> Threads() const override;
+  std::vector<const ModuleSnapshot*> Modules() const override;
+  const ExceptionSnapshot* Exception() const override;
+
+ private:
+  // Initializes threads_ on behalf of Initialize().
+  void InitializeThreads();
+
+  // Initializes modules_ on behalf of Initialize().
+  void InitializeModules();
+
+  internal::SystemSnapshotMac system_;
+  PointerVector<internal::ThreadSnapshotMac> threads_;
+  PointerVector<internal::ModuleSnapshotMac> modules_;
+  scoped_ptr<internal::ExceptionSnapshotMac> exception_;
+  ProcessReader process_reader_;
+  timeval snapshot_time_;
+  InitializationStateDcheck initialized_;
+
+  DISALLOW_COPY_AND_ASSIGN(ProcessSnapshotMac);
+};
+
+}  // namespace crashpad
+
+#endif  // CRASHPAD_SNAPSHOT_MAC_PROCESS_SNAPSHOT_MAC_H_

snapshot/snapshot.gyp

@@ -49,6 +49,8 @@
         'mac/module_snapshot_mac.h',
         'mac/process_reader.cc',
         'mac/process_reader.h',
+        'mac/process_snapshot_mac.cc',
+        'mac/process_snapshot_mac.h',
         'mac/process_types.cc',
         'mac/process_types.h',
         'mac/process_types/all.proctype',