dlib C++ Library - stack_trace.cpp

// Copyright (C) 2008 Davis E. King (davis@dlib.net)
// License: Boost Software License See LICENSE.txt for the full license.
#ifndef DLIB_STACK_TRACE_CPp_
#define DLIB_STACK_TRACE_CPp_
#if defined(DLIB_ENABLE_STACK_TRACE) && !defined(NO_MAKEFILE)
#include <sstream>
#include <cstring>
#include "stack_trace.h"
#include "stack.h"
#include "memory_manager.h"
namespace dlib
{
// ----------------------------------------------------------------------------------------
 namespace 
 {
 struct stack_tracer_data
 {
 stack_tracer_data(
 ) : funct_name(0),
 file_name(0),
 line_number(0)
 {}
 const char* funct_name;
 const char* file_name;
 int line_number;
 };
 using stack_tracer_stack_type = stack<stack_tracer_data,memory_manager<char>::kernel_2a>::kernel_1a;
 stack_tracer_stack_type& get_dlib_stack_trace_stack()
 {
 thread_local stack_tracer_stack_type a;
 return a;
 }
 }
// ----------------------------------------------------------------------------------------
 stack_tracer::
 stack_tracer (
 const char* funct_name,
 const char* file_name,
 const int line_number
 )
 {
 stack_tracer_data data;
 data.funct_name = funct_name;
 data.file_name = file_name;
 data.line_number = line_number;
 // pop the info onto the function stack trace
 get_dlib_stack_trace_stack().push(data);
 }
// ----------------------------------------------------------------------------------------
 stack_tracer::
 ~stack_tracer()
 {
 stack_tracer_data temp;
 get_dlib_stack_trace_stack().pop(temp);
 }
// ----------------------------------------------------------------------------------------
 const std::string get_stack_trace()
 {
 std::ostringstream sout;
 auto& stack = get_dlib_stack_trace_stack();
 stack.reset();
 while (stack.move_next())
 {
 stack_tracer_data data = stack.element();
 sout << data.file_name << ":" << data.line_number << "\n " << data.funct_name << "\n";
 }
 return sout.str();
 }
// ----------------------------------------------------------------------------------------
}
#endif
#endif // DLIB_STACK_TRACE_CPp_