Collect an initial set of stability activities

components/browser_watcher/postmortem_report_collector.cc

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "components/browser_watcher/postmortem_report_collector.h"
 
 #include <utility>
 
 #include "base/debug/activity_analyzer.h"
 #include "base/files/file_enumerator.h"
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/metrics/histogram_macros.h"
 #include "base/path_service.h"
 #include "base/strings/utf_string_conversions.h"
 #include "components/browser_watcher/postmortem_minidump_writer.h"
 #include "third_party/crashpad/crashpad/client/settings.h"
 #include "third_party/crashpad/crashpad/util/misc/uuid.h"
 
 using base::FilePath;
 
 namespace browser_watcher {
 
+using base::debug::ActivitySnapshot;
 using base::debug::GlobalActivityAnalyzer;
 using base::debug::ThreadActivityAnalyzer;
 using crashpad::CrashReportDatabase;
 
 PostmortemReportCollector::PostmortemReportCollector(
     const std::string& product_name,
     const std::string& version_number,
     const std::string& channel_name)
     : product_name_(product_name),
       version_number_(version_number),
@@ skipping 133 matching lines @@
 
   // Early exit if there is no data.
   ThreadActivityAnalyzer* thread_analyzer = global_analyzer->GetFirstAnalyzer();
   if (!thread_analyzer) {
     // No data. This case happens in the case of a clean exit.
     return DEBUG_FILE_NO_DATA;
   }
 
   // Iterate through the thread analyzers, fleshing out the report.
   report->reset(new StabilityReport());
+  // Note: a single process is instrumented.
   ProcessState* process_state = (*report)->add_process_states();
 
   for (; thread_analyzer != nullptr;
        thread_analyzer = global_analyzer->GetNextAnalyzer()) {
     // Only valid analyzers are expected per contract of GetFirstAnalyzer /
     // GetNextAnalyzer.
     DCHECK(thread_analyzer->IsValid());
 
+    if (!process_state->has_process_id()) {
+      process_state->set_process_id(
+          thread_analyzer->activity_snapshot().process_id);
+    }
+    DCHECK_EQ(thread_analyzer->activity_snapshot().process_id,
+              process_state->process_id());
+
     ThreadState* thread_state = process_state->add_threads();
-    thread_state->set_thread_name(thread_analyzer->GetThreadName());
-    // TODO(manzagop): flesh this out.
+    CollectThread(thread_analyzer->activity_snapshot(), thread_state);
   }
 
   return SUCCESS;
 }
 
+void PostmortemReportCollector::CollectThread(
+    const base::debug::ActivitySnapshot& snapshot,
+    ThreadState* thread_state) {
+  DCHECK(thread_state);
+
+  thread_state->set_thread_name(snapshot.thread_name);
+  thread_state->set_thread_id(snapshot.thread_id);
+  thread_state->set_activity_count(snapshot.activity_stack_depth);
+
+  for (const base::debug::Activity& recorded : snapshot.activity_stack) {
+    Activity* collected = thread_state->add_activities();
+    switch (recorded.activity_type) {
+      case base::debug::Activity::ACT_TASK_RUN:
+        collected->set_type(Activity::ACT_TASK_RUN);
+        collected->set_origin_address(recorded.origin_address);
+        collected->set_task_sequence_id(recorded.data.task.sequence_id);
+        break;
+      case base::debug::Activity::ACT_LOCK_ACQUIRE:
+        collected->set_type(Activity::ACT_LOCK_ACQUIRE);
+        collected->set_lock_address(recorded.data.lock.lock_address);
+        break;
+      case base::debug::Activity::ACT_EVENT_WAIT:
+        collected->set_type(Activity::ACT_EVENT_WAIT);
+        collected->set_event_address(recorded.data.event.event_address);
+        break;
+      case base::debug::Activity::ACT_THREAD_JOIN:
+        collected->set_type(Activity::ACT_THREAD_JOIN);
+        collected->set_thread_id(recorded.data.thread.thread_id);
+        break;
+      case base::debug::Activity::ACT_PROCESS_WAIT:
+        collected->set_type(Activity::ACT_PROCESS_WAIT);
+        collected->set_process_id(recorded.data.process.process_id);
+        break;
+      default:
+        break;
+    }
+  }
+}
+
 bool PostmortemReportCollector::WriteReportToMinidump(
     const StabilityReport& report,
     const crashpad::UUID& client_id,
     const crashpad::UUID& report_id,
     base::PlatformFile minidump_file) {
   MinidumpInfo minidump_info;
   minidump_info.client_id = client_id;
   minidump_info.report_id = report_id;
   // TODO(manzagop): replace this information, i.e. the reporter's attributes,
   // by that of the reportee. Doing so requires adding this information to the
   // stability report. In the meantime, there is a tolerable information
   // mismatch after upgrades.
   minidump_info.product_name = product_name();
   minidump_info.version_number = version_number();
   minidump_info.channel_name = channel_name();
 #if defined(ARCH_CPU_X86)
   minidump_info.platform = std::string("Win32");
 #elif defined(ARCH_CPU_X86_64)
   minidump_info.platform = std::string("Win64");
 #endif
 
   return WritePostmortemDump(minidump_file, report, minidump_info);
 }
 
 }  // namespace browser_watcher