crash-reporter: Capture and send recent update_engine logs when it crashes

user_collector.h

 // Copyright (c) 2010 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef _CRASH_REPORTER_USER_COLLECTOR_H_
 #define _CRASH_REPORTER_USER_COLLECTOR_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 29 matching lines @@
   bool Disable() { return SetUpInternal(false); }
 
   // Handle a specific user crash.  Returns true on success.
   bool HandleCrash(int signal, int pid, const char *force_exec);
 
   // Set (override the default) core file pattern.
   void set_core_pattern_file(const std::string &pattern) {
     core_pattern_file_ = pattern;
   }
 
+  // Set (override the default) core pipe limit file.
+  void set_core_pipe_limit_file(const std::string &path) {
+    core_pipe_limit_file_ = path;
+  }
+
  private:
   friend class UserCollectorTest;
   FRIEND_TEST(UserCollectorTest, CopyOffProcFilesBadPath);
   FRIEND_TEST(UserCollectorTest, CopyOffProcFilesBadPid);
   FRIEND_TEST(UserCollectorTest, CopyOffProcFilesOK);
   FRIEND_TEST(UserCollectorTest, GetIdFromStatus);
   FRIEND_TEST(UserCollectorTest, GetProcessPath);
   FRIEND_TEST(UserCollectorTest, GetSymlinkTarget);
   FRIEND_TEST(UserCollectorTest, GetUserInfoFromName);
 
@@ skipping 40 matching lines @@
                          const FilePath &temp_directory);
   bool ConvertCoreToMinidump(pid_t pid,
                              const FilePath &container_dir,
                              const FilePath &core_path,
                              const FilePath &minidump_path);
   bool ConvertAndEnqueueCrash(int pid, const std::string &exec_name,
                               bool *out_of_capacity);
 
   bool generate_diagnostics_;
   std::string core_pattern_file_;
+  std::string core_pipe_limit_file_;
   std::string our_path_;
   bool initialized_;
 
   // String containing the current log of crash handling errors.
   std::string error_log_;
 
   static const char *kUserId;
   static const char *kGroupId;
 };
 
 #endif  // _CRASH_REPORTER_USER_COLLECTOR_H_