/usr/include/boost/asio/detail/impl/handler_tracking.ipp is in libboost1.55-dev 1.55.0+dfsg-3.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// detail/impl/handler_tracking.ipp
// ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
//
// Copyright (c) 2003-2013 Christopher M. Kohlhoff (chris at kohlhoff dot com)
//
// Distributed under the Boost Software License, Version 1.0. (See accompanying
// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
//
#ifndef BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
#define BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
#if defined(_MSC_VER) && (_MSC_VER >= 1200)
# pragma once
#endif // defined(_MSC_VER) && (_MSC_VER >= 1200)
#include <boost/asio/detail/config.hpp>
#if defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
#include <cstdarg>
#include <cstdio>
#include <boost/asio/detail/handler_tracking.hpp>
#if defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
# include <boost/asio/time_traits.hpp>
#else // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
# if defined(BOOST_ASIO_HAS_STD_CHRONO)
# include <chrono>
# elif defined(BOOST_ASIO_HAS_BOOST_CHRONO)
# include <boost/chrono/system_clocks.hpp>
# endif
# include <boost/asio/detail/chrono_time_traits.hpp>
# include <boost/asio/wait_traits.hpp>
#endif // defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
#if !defined(BOOST_ASIO_WINDOWS)
# include <unistd.h>
#endif // !defined(BOOST_ASIO_WINDOWS)
#include <boost/asio/detail/push_options.hpp>
namespace boost {
namespace asio {
namespace detail {
struct handler_tracking_timestamp
{
uint64_t seconds;
uint64_t microseconds;
handler_tracking_timestamp()
{
#if defined(BOOST_ASIO_HAS_BOOST_DATE_TIME)
boost::posix_time::ptime epoch(boost::gregorian::date(1970, 1, 1));
boost::posix_time::time_duration now =
boost::posix_time::microsec_clock::universal_time() - epoch;
#elif defined(BOOST_ASIO_HAS_STD_CHRONO)
typedef chrono_time_traits<std::chrono::system_clock,
boost::asio::wait_traits<std::chrono::system_clock> > traits_helper;
traits_helper::posix_time_duration now(
std::chrono::system_clock::now().time_since_epoch());
#elif defined(BOOST_ASIO_HAS_BOOST_CHRONO)
typedef chrono_time_traits<boost::chrono::system_clock,
boost::asio::wait_traits<boost::chrono::system_clock> > traits_helper;
traits_helper::posix_time_duration now(
boost::chrono::system_clock::now().time_since_epoch());
#endif
seconds = static_cast<uint64_t>(now.total_seconds());
microseconds = static_cast<uint64_t>(now.total_microseconds() % 1000000);
}
};
struct handler_tracking::tracking_state
{
static_mutex mutex_;
uint64_t next_id_;
tss_ptr<completion>* current_completion_;
};
handler_tracking::tracking_state* handler_tracking::get_state()
{
static tracking_state state = { BOOST_ASIO_STATIC_MUTEX_INIT, 1, 0 };
return &state;
}
void handler_tracking::init()
{
static tracking_state* state = get_state();
state->mutex_.init();
static_mutex::scoped_lock lock(state->mutex_);
if (state->current_completion_ == 0)
state->current_completion_ = new tss_ptr<completion>;
}
void handler_tracking::creation(handler_tracking::tracked_handler* h,
const char* object_type, void* object, const char* op_name)
{
static tracking_state* state = get_state();
static_mutex::scoped_lock lock(state->mutex_);
h->id_ = state->next_id_++;
lock.unlock();
handler_tracking_timestamp timestamp;
uint64_t current_id = 0;
if (completion* current_completion = *state->current_completion_)
current_id = current_completion->id_;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|%I64u*%I64u|%.20s@%p.%.50s\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|%llu*%llu|%.20s@%p.%.50s\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
current_id, h->id_, object_type, object, op_name);
}
handler_tracking::completion::completion(handler_tracking::tracked_handler* h)
: id_(h->id_),
invoked_(false),
next_(*get_state()->current_completion_)
{
*get_state()->current_completion_ = this;
}
handler_tracking::completion::~completion()
{
if (id_)
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|%c%I64u|\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|%c%llu|\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
invoked_ ? '!' : '~', id_);
}
*get_state()->current_completion_ = next_;
}
void handler_tracking::completion::invocation_begin()
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|>%llu|\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds, id_);
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec)
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
id_, ec.category().name(), ec.value());
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec, std::size_t bytes_transferred)
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,bytes_transferred=%I64u\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d,bytes_transferred=%llu\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
id_, ec.category().name(), ec.value(),
static_cast<uint64_t>(bytes_transferred));
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec, int signal_number)
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,signal_number=%d\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d,signal_number=%d\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
id_, ec.category().name(), ec.value(), signal_number);
invoked_ = true;
}
void handler_tracking::completion::invocation_begin(
const boost::system::error_code& ec, const char* arg)
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|>%I64u|ec=%.20s:%d,%.50s\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|>%llu|ec=%.20s:%d,%.50s\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
id_, ec.category().name(), ec.value(), arg);
invoked_ = true;
}
void handler_tracking::completion::invocation_end()
{
if (id_)
{
handler_tracking_timestamp timestamp;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|<%I64u|\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|<%llu|\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds, id_);
id_ = 0;
}
}
void handler_tracking::operation(const char* object_type,
void* object, const char* op_name)
{
static tracking_state* state = get_state();
handler_tracking_timestamp timestamp;
unsigned long long current_id = 0;
if (completion* current_completion = *state->current_completion_)
current_id = current_completion->id_;
write_line(
#if defined(BOOST_ASIO_WINDOWS)
"@asio|%I64u.%06I64u|%I64u|%.20s@%p.%.50s\n",
#else // defined(BOOST_ASIO_WINDOWS)
"@asio|%llu.%06llu|%llu|%.20s@%p.%.50s\n",
#endif // defined(BOOST_ASIO_WINDOWS)
timestamp.seconds, timestamp.microseconds,
current_id, object_type, object, op_name);
}
void handler_tracking::write_line(const char* format, ...)
{
using namespace std; // For sprintf (or equivalent).
va_list args;
va_start(args, format);
char line[256] = "";
#if defined(BOOST_ASIO_HAS_SECURE_RTL)
int length = vsprintf_s(line, sizeof(line), format, args);
#else // defined(BOOST_ASIO_HAS_SECURE_RTL)
int length = vsprintf(line, format, args);
#endif // defined(BOOST_ASIO_HAS_SECURE_RTL)
va_end(args);
#if defined(BOOST_ASIO_WINDOWS)
HANDLE stderr_handle = ::GetStdHandle(STD_ERROR_HANDLE);
DWORD bytes_written = 0;
::WriteFile(stderr_handle, line, length, &bytes_written, 0);
#else // defined(BOOST_ASIO_WINDOWS)
::write(STDERR_FILENO, line, length);
#endif // defined(BOOST_ASIO_WINDOWS)
}
} // namespace detail
} // namespace asio
} // namespace boost
#include <boost/asio/detail/pop_options.hpp>
#endif // defined(BOOST_ASIO_ENABLE_HANDLER_TRACKING)
#endif // BOOST_ASIO_DETAIL_IMPL_HANDLER_TRACKING_IPP
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