base/debug/stack_trace.cc

   1 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style license that can be
   3 // found in the LICENSE file.
   4
   5 #include "base/debug/stack_trace.h"
   6
   7 #include "base/basictypes.h"
   8
   9 #include <string.h>
  10
  11 #include <algorithm>
  12 #include <sstream>
  13
  14 namespace base {
  15 namespace debug {
  16
  17 StackTrace::StackTrace(const void* const* trace, size_t count) {
  18   count = std::min(count, arraysize(trace_));
  19   if (count)
  20     memcpy(trace_, trace, count * sizeof(trace_[0]));
  21   count_ = count;
  22 }
  23
  24 StackTrace::~StackTrace() {
  25 }
  26
  27 const void *const *StackTrace::Addresses(size_t* count) const {
  28   *count = count_;
  29   if (count_)
  30     return trace_;
  31   return NULL;
  32 }
  33
  34 std::string StackTrace::ToString() const {
  35   std::stringstream stream;
  36   OutputToStream(&stream);
  37   return stream.str();
  38 }
  39
  40 }  // namespace debug
  41 }  // namespace base