Refactor the code.

The object hierarchy was confusing and convoluted. This removes
a lot of unnecessary code, and consolidates the BacktraceCurrent
and BacktraceThread code into BacktraceCurrent.

Change-Id: I01c8407d493712a48169df49dd3ff46db4a7c3ae

1 files changed, 0 insertions, 92 deletions

diff --git a/libbacktrace/BacktraceThread.h b/libbacktrace/BacktraceThread.h
deleted file mode 100644
index 99a8638..0000000
--- a/libbacktrace/BacktraceThread.h
+++ /dev/null
@@ -1,92 +0,0 @@
-/*
- * Copyright (C) 2013 The Android Open Source Project
- *
- * 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 _LIBBACKTRACE_BACKTRACE_THREAD_H
-#define _LIBBACKTRACE_BACKTRACE_THREAD_H
-
-#include <inttypes.h>
-#include <pthread.h>
-#include <signal.h>
-#include <string.h>
-#include <sys/types.h>
-#include <ucontext.h>
-
-#include "BacktraceImpl.h"
-
-// The signal used to cause a thread to dump the stack.
-#if defined(__GLIBC__)
-// GLIBC reserves __SIGRTMIN signals, so use SIGRTMIN to avoid errors.
-#define THREAD_SIGNAL SIGRTMIN
-#else
-#define THREAD_SIGNAL (__SIGRTMIN+1)
-#endif
-
-class ThreadEntry {
-public:
-  static ThreadEntry* Get(pid_t pid, pid_t tid, bool create = true);
-
-  static void Remove(ThreadEntry* entry);
-
-  void Wake();
-
-  void Wait(int);
-
-  void CopyUcontextFromSigcontext(void*);
-
-  inline void Lock() {
-    pthread_mutex_lock(&mutex_);
-
-    // Always reset the wait value since this could be the first or nth
-    // time this entry is locked.
-    wait_value_ = 0;
-  }
-
-  inline void Unlock() {
-    pthread_mutex_unlock(&mutex_);
-  }
-
-  inline ucontext_t* GetUcontext() { return &ucontext_; }
-
-private:
-  ThreadEntry(pid_t pid, pid_t tid);
-  ~ThreadEntry();
-
-  bool Match(pid_t chk_pid, pid_t chk_tid) { return (chk_pid == pid_ && chk_tid == tid_); }
-
-  pid_t pid_;
-  pid_t tid_;
-  int ref_count_;
-  pthread_mutex_t mutex_;
-  pthread_mutex_t wait_mutex_;
-  pthread_cond_t wait_cond_;
-  int wait_value_;
-  ThreadEntry* next_;
-  ThreadEntry* prev_;
-  ucontext_t ucontext_;
-
-  static ThreadEntry* list_;
-  static pthread_mutex_t list_mutex_;
-};
-
-class BacktraceThread : public BacktraceCurrent {
-public:
-  BacktraceThread(BacktraceImpl* impl, pid_t tid, BacktraceMap* map);
-  virtual ~BacktraceThread();
-
-  virtual bool Unwind(size_t num_ignore_frames, ucontext_t* ucontext);
-};
-
-#endif // _LIBBACKTRACE_BACKTRACE_THREAD_H