comparison DEPENDENCIES/generic/include/boost/test/impl/debug.ipp @ 16:2665513ce2d3

Add boost headers

+//  (C) Copyright Gennadiy Rozental 2006-2008.
+//  Use, modification, and distribution are subject to the
+//  Boost Software License, Version 1.0. (See accompanying file
+//  http://www.boost.org/LICENSE_1_0.txt)
+
+//  See http://www.boost.org/libs/test for the library home page.
+//
+//  File        : $RCSfile$
+//
+//  Version     : $Revision: 57992 $
+//
+//  Description : debug interfaces implementation
+// ***************************************************************************
+
+#ifndef BOOST_TEST_DEBUG_API_IPP_112006GER
+#define BOOST_TEST_DEBUG_API_IPP_112006GER
+
+// Boost.Test
+#include <boost/test/detail/config.hpp>
+#include <boost/test/detail/workaround.hpp>
+#include <boost/test/detail/global_typedef.hpp>
+
+#include <boost/test/debug.hpp>
+#include <boost/test/debug_config.hpp>
+
+// Implementation on Windows
+#if defined(_WIN32) && !defined(UNDER_CE) && !defined(BOOST_DISABLE_WIN32) // ******* WIN32
+
+#  define BOOST_WIN32_BASED_DEBUG
+
+// SYSTEM API
+#  include <windows.h>
+#  include <winreg.h>
+#  include <cstdio>
+#  include <cstring>
+
+#  if !defined(NDEBUG) && defined(_MSC_VER)
+#    define BOOST_MS_CRT_BASED_DEBUG
+#    include <crtdbg.h>
+#  endif
+
+
+#  if BOOST_WORKAROUND( BOOST_MSVC, <1300)
+#    define snprintf _snprintf
+#  endif
+
+#  ifdef BOOST_NO_STDC_NAMESPACE
+namespace std { using ::memset; using ::sprintf; }
+#  endif
+
+#elif defined(unix) || defined(__unix) // ********************* UNIX
+
+#  define BOOST_UNIX_BASED_DEBUG
+
+// Boost.Test
+#include <boost/test/utils/class_properties.hpp>
+#include <boost/test/utils/algorithm.hpp>
+
+// STL
+#include <cstring>  // std::memcpy
+#include <map>
+#include <cstdio>
+#include <stdarg.h> // !! ?? cstdarg
+
+// SYSTEM API
+#  include <unistd.h>
+#  include <signal.h>
+#  include <fcntl.h>
+
+#  include <sys/types.h>
+#  include <sys/stat.h>
+#  include <sys/wait.h>
+#  include <sys/time.h>
+#  include <stdio.h>
+#  include <stdlib.h>
+
+#  if defined(sun) || defined(__sun)
+
+#    define BOOST_SUN_BASED_DEBUG
+
+#    ifndef BOOST_TEST_DBG_LIST
+#      define BOOST_TEST_DBG_LIST dbx;gdb
+#    endif
+
+#    define BOOST_TEST_CNL_DBG  dbx
+#    define BOOST_TEST_GUI_DBG  dbx-ddd
+
+#    include <procfs.h>
+
+#  elif defined(linux) || defined(__linux)
+
+#    define BOOST_LINUX_BASED_DEBUG
+
+#    include <sys/ptrace.h>
+
+#    ifndef BOOST_TEST_STAT_LINE_MAX
+#      define BOOST_TEST_STAT_LINE_MAX 500
+#    endif
+
+#    ifndef BOOST_TEST_DBG_LIST
+#      define BOOST_TEST_DBG_LIST gdb
+#    endif
+
+#    define BOOST_TEST_CNL_DBG  gdb
+#    define BOOST_TEST_GUI_DBG  gdb-xterm
+
+#  endif
+
+#endif
+
+#include <boost/test/detail/suppress_warnings.hpp>
+
+//____________________________________________________________________________//
+
+namespace boost {
+
+namespace debug {
+
+using unit_test::const_string;
+
+// ************************************************************************** //
+// **************                debug::info_t                 ************** //
+// ************************************************************************** //
+
+namespace {
+
+#if defined(BOOST_WIN32_BASED_DEBUG) // *********************** WIN32
+
+template<typename T>
+inline void
+dyn_symbol( T& res, char const* module_name, char const* symbol_name )
+{
+    HMODULE m = ::GetModuleHandleA( module_name );
+
+    if( !m )
+        m = ::LoadLibraryA( module_name );
+
+    res = reinterpret_cast<T>( ::GetProcAddress( m, symbol_name ) );
+}
+
+//____________________________________________________________________________//
+
+static struct info_t {
+    typedef BOOL (WINAPI* IsDebuggerPresentT)();
+    typedef LONG (WINAPI* RegQueryValueExT)( HKEY, char const* /*LPTSTR*/, LPDWORD, LPDWORD, LPBYTE, LPDWORD );
+    typedef LONG (WINAPI* RegOpenKeyT)( HKEY, char const* /*LPCTSTR*/, PHKEY );
+    typedef LONG (WINAPI* RegCloseKeyT)( HKEY );
+
+    info_t();
+
+    IsDebuggerPresentT  m_is_debugger_present;
+    RegOpenKeyT         m_reg_open_key;
+    RegQueryValueExT    m_reg_query_value;
+    RegCloseKeyT        m_reg_close_key;
+
+} s_info;
+
+//____________________________________________________________________________//
+
+info_t::info_t()
+{
+    dyn_symbol( m_is_debugger_present, "kernel32", "IsDebuggerPresent" );
+    dyn_symbol( m_reg_open_key, "advapi32", "RegOpenKeyA" );
+    dyn_symbol( m_reg_query_value, "advapi32", "RegQueryValueExA" );
+    dyn_symbol( m_reg_close_key, "advapi32", "RegCloseKey" );
+}
+
+//____________________________________________________________________________//
+
+#elif defined(BOOST_UNIX_BASED_DEBUG)
+
+// ************************************************************************** //
+// **************                   fd_holder                  ************** //
+// ************************************************************************** //
+
+struct fd_holder {
+    explicit fd_holder( int fd ) : m_fd( fd ) {}
+    ~fd_holder()
+    {
+        if( m_fd != -1 )
+            ::close( m_fd );
+    }
+
+    operator int() { return m_fd; }
+
+private:
+    // Data members
+    int m_fd;
+};
+
+
+// ************************************************************************** //
+// **************                 process_info                 ************** //
+// ************************************************************************** //
+
+struct process_info {
+    // Constructor
+    explicit        process_info( int pid );
+
+    // access methods
+    int             parent_pid() const  { return m_parent_pid; }
+    const_string    binary_name() const { return m_binary_name; }
+    const_string    binary_path() const { return m_binary_path; }
+
+private:
+    // Data members
+    int             m_parent_pid;
+    const_string    m_binary_name;
+    const_string    m_binary_path;
+
+#if defined(BOOST_SUN_BASED_DEBUG)
+    struct psinfo   m_psi;
+#elif defined(BOOST_LINUX_BASED_DEBUG)
+    char            m_stat_line[BOOST_TEST_STAT_LINE_MAX+1];
+#endif
+    char            m_binary_path_buff[500+1]; // !! ??
+};
+
+//____________________________________________________________________________//
+
+process_info::process_info( int pid )
+: m_parent_pid( 0 )
+{
+#if defined(BOOST_SUN_BASED_DEBUG)
+    char fname_buff[30];
+
+    ::snprintf( fname_buff, sizeof(fname_buff), "/proc/%d/psinfo", pid );
+
+    fd_holder psinfo_fd( ::open( fname_buff, O_RDONLY ) );
+
+    if( psinfo_fd == -1 )
+        return;
+
+    if( ::read( psinfo_fd, &m_psi, sizeof(m_psi) ) == -1 )
+        return;
+
+    m_parent_pid = m_psi.pr_ppid;
+
+    m_binary_name.assign( m_psi.pr_fname );
+
+    //-------------------------- //
+    
+    ::snprintf( fname_buff, sizeof(fname_buff), "/proc/%d/as", pid );
+
+    fd_holder as_fd( ::open( fname_buff, O_RDONLY ) );
+    uintptr_t   binary_name_pos;
+  
+    // !! ?? could we avoid reading whole m_binary_path_buff?
+    if( as_fd == -1 ||
+        ::lseek( as_fd, m_psi.pr_argv, SEEK_SET ) == -1 ||
+        ::read ( as_fd, &binary_name_pos, sizeof(binary_name_pos) ) == -1 ||
+        ::lseek( as_fd, binary_name_pos, SEEK_SET ) == -1 ||
+        ::read ( as_fd, m_binary_path_buff, sizeof(m_binary_path_buff) ) == -1 )
+        return;
+        
+    m_binary_path.assign( m_binary_path_buff );
+        
+#elif defined(BOOST_LINUX_BASED_DEBUG)
+    char fname_buff[30];
+
+    ::snprintf( fname_buff, sizeof(fname_buff), "/proc/%d/stat", pid );
+
+    fd_holder psinfo_fd( ::open( fname_buff, O_RDONLY ) );
+
+    if( psinfo_fd == -1 )
+        return;
+
+    ssize_t num_read = ::read( psinfo_fd, m_stat_line, sizeof(m_stat_line)-1 );
+    if( num_read == -1 )
+        return;
+
+    m_stat_line[num_read] = 0;
+
+    char const* name_beg = m_stat_line;
+    while( *name_beg && *name_beg != '(' )
+        ++name_beg;
+
+    char const* name_end = name_beg+1;
+    while( *name_end && *name_end != ')' )
+        ++name_end;
+
+    std::sscanf( name_end+1, "%*s%d", &m_parent_pid );
+
+    m_binary_name.assign( name_beg+1, name_end );
+
+    ::snprintf( fname_buff, sizeof(fname_buff), "/proc/%d/exe", pid );
+    num_read = ::readlink( fname_buff, m_binary_path_buff, sizeof(m_binary_path_buff)-1 );
+
+    if( num_read == -1 )
+        return;
+
+    m_binary_path_buff[num_read] = 0;
+    m_binary_path.assign( m_binary_path_buff, num_read );
+#endif
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************             prepare_window_title             ************** //
+// ************************************************************************** //
+
+static char*
+prepare_window_title( dbg_startup_info const& dsi )
+{
+    typedef unit_test::const_string str_t;
+
+    static char title_str[50];
+
+    str_t path_sep( "\\/" );
+
+    str_t::iterator  it = unit_test::find_last_of( dsi.binary_path.begin(), dsi.binary_path.end(),
+                                                   path_sep.begin(), path_sep.end() );
+
+    if( it == dsi.binary_path.end() )
+        it = dsi.binary_path.begin();
+    else
+        ++it;
+
+    ::snprintf( title_str, sizeof(title_str), "%*s %ld", (int)(dsi.binary_path.end()-it), it, dsi.pid );
+
+    return title_str;
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************                  save_execlp                 ************** //
+// ************************************************************************** //
+
+typedef unit_test::basic_cstring<char> mbuffer;
+
+inline char*
+copy_arg( mbuffer& dest, const_string arg )
+{
+    if( dest.size() < arg.size()+1 )
+        return 0;
+
+    char* res = dest.begin();
+
+    std::memcpy( res, arg.begin(), arg.size()+1 );
+
+    dest.trim_left( arg.size()+1 );
+
+    return res;
+}
+
+//____________________________________________________________________________//
+
+bool
+safe_execlp( char const* file, ... )
+{
+    static char* argv_buff[200];
+
+    va_list     args;
+    char const* arg;
+
+    // first calculate actual number of arguments
+    int         num_args = 2; // file name and 0 at least
+
+    va_start( args, file );
+    while( !!(arg = va_arg( args, char const* )) )
+        num_args++;
+    va_end( args );
+
+    // reserve space for the argument pointers array
+    char**      argv_it  = argv_buff;
+    mbuffer     work_buff( reinterpret_cast<char*>(argv_buff), sizeof(argv_buff) );
+    work_buff.trim_left( num_args * sizeof(char*) );
+
+    // copy all the argument values into local storage
+    if( !(*argv_it++ = copy_arg( work_buff, file )) )
+        return false;
+
+    printf( "!! %s\n", file );
+
+    va_start( args, file );
+    while( !!(arg = va_arg( args, char const* )) ) {
+        printf( "!! %s\n", arg );
+        if( !(*argv_it++ = copy_arg( work_buff, arg )) )
+            return false;
+    }
+    va_end( args );
+
+    *argv_it = 0;
+
+    return ::execvp( file, argv_buff ) != -1;
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************            start_debugger_in_emacs           ************** //
+// ************************************************************************** //
+
+static void
+start_debugger_in_emacs( dbg_startup_info const& dsi, char const* emacs_name, char const* dbg_command )
+{
+    char const* title = prepare_window_title( dsi );
+
+    if( !title )
+        return;
+
+    dsi.display.is_empty()
+        ? safe_execlp( emacs_name, "-title", title, "--eval", dbg_command, 0 )
+        : safe_execlp( emacs_name, "-title", title, "-display", dsi.display.begin(), "--eval", dbg_command, 0 );
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************                 gdb starters                 ************** //
+// ************************************************************************** //
+
+static char const*
+prepare_gdb_cmnd_file( dbg_startup_info const& dsi )
+{
+    // prepare pid value
+    char pid_buff[16];
+    ::snprintf( pid_buff, sizeof(pid_buff), "%ld", dsi.pid );
+    unit_test::const_string pid_str( pid_buff );
+
+    static char cmd_file_name[] = "/tmp/btl_gdb_cmd_XXXXXX"; // !! ??
+
+    // prepare commands
+    fd_holder cmd_fd( ::mkstemp( cmd_file_name ) );
+
+    if( cmd_fd == -1 )
+        return 0;
+
+#define WRITE_STR( str )  if( ::write( cmd_fd, str.begin(), str.size() ) == -1 ) return 0;
+#define WRITE_CSTR( str ) if( ::write( cmd_fd, str, sizeof( str )-1 ) == -1 ) return 0;
+
+    WRITE_CSTR( "file " );
+    WRITE_STR( dsi.binary_path );
+    WRITE_CSTR( "\nattach " );
+    WRITE_STR( pid_str );
+    WRITE_CSTR( "\nshell unlink " );
+    WRITE_STR( dsi.init_done_lock );
+    WRITE_CSTR( "\ncont" );
+    if( dsi.break_or_continue )
+        WRITE_CSTR( "\nup 4" );
+            
+    WRITE_CSTR( "\necho \\n" ); // !! ??
+    WRITE_CSTR( "\nlist -" );
+    WRITE_CSTR( "\nlist" );
+    WRITE_CSTR( "\nshell unlink " );
+    WRITE_CSTR( cmd_file_name );
+
+    return cmd_file_name;
+}
+
+//____________________________________________________________________________//
+
+static void
+start_gdb_in_console( dbg_startup_info const& dsi )
+{
+    char const* cmnd_file_name = prepare_gdb_cmnd_file( dsi );
+
+    if( !cmnd_file_name )
+        return;
+
+    safe_execlp( "gdb", "-q", "-x", cmnd_file_name, 0 );
+}
+
+//____________________________________________________________________________//
+
+static void
+start_gdb_in_xterm( dbg_startup_info const& dsi )
+{
+    char const* title           = prepare_window_title( dsi );
+    char const* cmnd_file_name  = prepare_gdb_cmnd_file( dsi );
+
+    if( !title || !cmnd_file_name )
+        return;
+
+    safe_execlp( "xterm", "-T", title, "-display", dsi.display.begin(),
+                    "-bg", "black", "-fg", "white", "-geometry", "88x30+10+10", "-fn", "9x15", "-e",
+                 "gdb", "-q", "-x", cmnd_file_name, 0 );
+}
+
+//____________________________________________________________________________//
+
+static void
+start_gdb_in_emacs( dbg_startup_info const& dsi )
+{
+    char const* cmnd_file_name  = prepare_gdb_cmnd_file( dsi );
+    if( !cmnd_file_name )
+        return;
+
+    char dbg_cmd_buff[500]; // !! ??
+    ::snprintf( dbg_cmd_buff, sizeof(dbg_cmd_buff), "(progn (gdb \"gdb -q -x %s\"))", cmnd_file_name );
+
+    start_debugger_in_emacs( dsi, "emacs", dbg_cmd_buff );
+}
+
+//____________________________________________________________________________//
+
+static void
+start_gdb_in_xemacs( dbg_startup_info const& )
+{
+    // !! ??
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************                 dbx starters                 ************** //
+// ************************************************************************** //
+
+static char const*
+prepare_dbx_cmd_line( dbg_startup_info const& dsi, bool list_source = true )
+{
+    static char cmd_line_buff[500]; // !! ??
+
+    ::snprintf( cmd_line_buff, sizeof(cmd_line_buff), "unlink %s;cont;%s%s", 
+                   dsi.init_done_lock.begin(), 
+                   dsi.break_or_continue ? "up 2;": "", 
+                   list_source ? "echo \" \";list -w3;" : "" );
+
+    return cmd_line_buff;
+}
+
+//____________________________________________________________________________//
+
+static void
+start_dbx_in_console( dbg_startup_info const& dsi )
+{
+    char pid_buff[16];
+    ::snprintf( pid_buff, sizeof(pid_buff), "%ld", dsi.pid );
+
+    safe_execlp( "dbx", "-q", "-c", prepare_dbx_cmd_line( dsi ), dsi.binary_path.begin(), pid_buff, 0 );
+}
+
+//____________________________________________________________________________//
+
+static void
+start_dbx_in_xterm( dbg_startup_info const& dsi )
+{
+    char const* title = prepare_window_title( dsi );
+    if( !title )
+        return;
+
+    char pid_buff[16]; // !! ??
+    ::snprintf( pid_buff, sizeof(pid_buff), "%ld", dsi.pid );
+    
+    safe_execlp( "xterm", "-T", title, "-display", dsi.display.begin(), 
+                    "-bg", "black", "-fg", "white", "-geometry", "88x30+10+10", "-fn", "9x15", "-e",
+                 "dbx", "-q", "-c", prepare_dbx_cmd_line( dsi ), dsi.binary_path.begin(), pid_buff, 0 );
+}
+
+//____________________________________________________________________________//
+
+static void
+start_dbx_in_emacs( dbg_startup_info const& /*dsi*/ )
+{
+//    char dbg_cmd_buff[500]; // !! ??
+//
+//    ::snprintf( dbg_cmd_buff, sizeof(dbg_cmd_buff), "(progn (dbx \"dbx -q -c cont %s %ld\"))", dsi.binary_path.begin(), dsi.pid );
+
+//    start_debugger_in_emacs( dsi, "emacs", dbg_cmd_buff );
+}
+
+//____________________________________________________________________________//
+
+static void
+start_dbx_in_xemacs( dbg_startup_info const& )
+{
+    // !! ??
+}
+
+//____________________________________________________________________________//
+
+static void
+start_dbx_in_ddd( dbg_startup_info const& dsi )
+{
+    char const* title = prepare_window_title( dsi );
+    if( !title )
+        return;
+
+    char pid_buff[16]; // !! ??
+    ::snprintf( pid_buff, sizeof(pid_buff), "%ld", dsi.pid );
+    
+    safe_execlp( "ddd", "-display", dsi.display.begin(),
+                 "--dbx", "-q", "-c", prepare_dbx_cmd_line( dsi, false ), dsi.binary_path.begin(), pid_buff, 0 );
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************                debug::info_t                 ************** //
+// ************************************************************************** //
+
+static struct info_t {
+    // Constructor
+    info_t();
+
+    // Public properties
+    unit_test::readwrite_property<std::string>  p_dbg;
+    
+    // Data members
+    std::map<std::string,dbg_starter>           m_dbg_starter_reg;
+} s_info;
+
+//____________________________________________________________________________//
+
+info_t::info_t()
+{
+    p_dbg.value = ::getenv( "DISPLAY" )
+        ? std::string( BOOST_STRINGIZE( BOOST_TEST_GUI_DBG ) )
+        : std::string( BOOST_STRINGIZE( BOOST_TEST_CNL_DBG ) );
+        
+    m_dbg_starter_reg[std::string("gdb")]           = &start_gdb_in_console;
+    m_dbg_starter_reg[std::string("gdb-emacs")]     = &start_gdb_in_emacs;
+    m_dbg_starter_reg[std::string("gdb-xterm")]     = &start_gdb_in_xterm;
+    m_dbg_starter_reg[std::string("gdb-xemacs")]    = &start_gdb_in_xemacs;
+
+    m_dbg_starter_reg[std::string("dbx")]           = &start_dbx_in_console;
+    m_dbg_starter_reg[std::string("dbx-emacs")]     = &start_dbx_in_emacs;
+    m_dbg_starter_reg[std::string("dbx-xterm")]     = &start_dbx_in_xterm;
+    m_dbg_starter_reg[std::string("dbx-xemacs")]    = &start_dbx_in_xemacs;
+    m_dbg_starter_reg[std::string("dbx-ddd")]       = &start_dbx_in_ddd;
+}
+
+//____________________________________________________________________________//
+
+#endif
+
+} // local namespace
+
+// ************************************************************************** //
+// **************  check if program is running under debugger  ************** //
+// ************************************************************************** //
+
+bool
+under_debugger()
+{
+#if defined(BOOST_WIN32_BASED_DEBUG) // *********************** WIN32
+
+    return !!s_info.m_is_debugger_present && s_info.m_is_debugger_present();
+
+#elif defined(BOOST_UNIX_BASED_DEBUG) // ********************** UNIX
+
+    // !! ?? could/should we cache the result somehow?
+    const_string    dbg_list = BOOST_TEST_STRINGIZE( BOOST_TEST_DBG_LIST );
+
+    pid_t pid = ::getpid();
+
+    while( pid != 0 ) {
+        process_info pi( pid );
+
+        // !! ?? should we use tokenizer here instead?
+        if( dbg_list.find( pi.binary_name() ) != const_string::npos )
+            return true;
+
+        pid = (pi.parent_pid() == pid ? 0 : pi.parent_pid());
+    }
+
+    return false;
+
+#else // ****************************************************** default
+
+    return false;
+
+#endif
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************       cause program to break execution       ************** //
+// **************           in debugger at call point          ************** //
+// ************************************************************************** //
+
+void
+debugger_break()
+{
+    // !! ?? auto-start debugger?
+
+#if defined(BOOST_WIN32_BASED_DEBUG) // *********************** WIN32
+
+#if BOOST_WORKAROUND(BOOST_MSVC, >= 1300)                       ||  \
+    BOOST_WORKAROUND(__GNUC__, >= 3) && !defined(__MINGW32__)   ||  \
+    defined(__INTEL_COMPILER)
+#   define BOOST_DEBUG_BREAK    __debugbreak
+#else
+#   define BOOST_DEBUG_BREAK    DebugBreak
+#endif
+
+#ifndef __MINGW32__
+    if( !under_debugger() ) {
+        __try {
+            __try {
+                BOOST_DEBUG_BREAK();
+            }
+            __except( UnhandledExceptionFilter(GetExceptionInformation()) )
+            {
+                // User opted to ignore the breakpoint
+                return;
+            }
+        }
+        __except (EXCEPTION_EXECUTE_HANDLER)
+        {
+            // If we got here, the user has pushed Debug. Debugger is already attached to our process and we
+            // continue to let the another BOOST_DEBUG_BREAK to be called.
+        }
+    }
+#endif
+
+    BOOST_DEBUG_BREAK();
+
+#elif defined(BOOST_UNIX_BASED_DEBUG) // ********************** UNIX
+
+    ::kill( ::getpid(), SIGTRAP );
+
+#else // ****************************************************** default
+
+#endif
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************            console debugger setup            ************** //
+// ************************************************************************** //
+
+#if defined(BOOST_UNIX_BASED_DEBUG) // ************************ UNIX
+
+std::string
+set_debugger( unit_test::const_string dbg_id, dbg_starter s )
+{
+    std::string old = s_info.p_dbg;
+
+    assign_op( s_info.p_dbg.value, dbg_id, 0 );
+
+    if( !!s )
+        s_info.m_dbg_starter_reg[s_info.p_dbg] = s;
+
+    return old;
+}
+
+#else  // ***************************************************** default
+
+std::string
+set_debugger( unit_test::const_string, dbg_starter )
+{
+    return std::string();
+}
+
+#endif
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************    attach debugger to the current process    ************** //
+// ************************************************************************** //
+
+bool
+attach_debugger( bool break_or_continue )
+{
+    if( under_debugger() )
+        return false;
+
+#if defined(BOOST_WIN32_BASED_DEBUG) // *********************** WIN32
+
+    const int MAX_CMD_LINE = 200;
+
+    // *************************************************** //
+    // Debugger "ready" event
+
+    SECURITY_ATTRIBUTES attr;
+    attr.nLength                = sizeof(attr);
+    attr.lpSecurityDescriptor   = NULL;
+    attr.bInheritHandle         = true;
+
+    // manual resettable, initially non signaled, unnamed event,
+    // that will signal me that debugger initialization is done
+    HANDLE dbg_init_done_ev = ::CreateEvent(
+        &attr,          // pointer to security attributes
+        true,           // flag for manual-reset event
+        false,          // flag for initial state
+        NULL            // pointer to event-object name
+    );
+
+    if( !dbg_init_done_ev )
+        return false;
+
+    // *************************************************** //
+    // Debugger command line format
+
+    HKEY reg_key;
+
+    if( !s_info.m_reg_open_key || (*s_info.m_reg_open_key)(
+            HKEY_LOCAL_MACHINE,                                         // handle of open key
+            "Software\\Microsoft\\Windows NT\\CurrentVersion\\AeDebug", // name of subkey to open
+            &reg_key ) != ERROR_SUCCESS )                               // address of handle of open key
+        return false;
+
+    char  format[MAX_CMD_LINE];
+    DWORD format_size = MAX_CMD_LINE;
+    DWORD type = REG_SZ;
+
+    if( !s_info.m_reg_query_value || (*s_info.m_reg_query_value)(
+            reg_key,                            // handle of open key
+            "Debugger",                         // name of subkey to query
+            0,                                  // reserved
+            &type,                              // value type
+            (LPBYTE)format,                     // buffer for returned string
+            &format_size ) != ERROR_SUCCESS )   // in: buffer size; out: actual size of returned string
+        return false;
+
+    if( !s_info.m_reg_close_key || (*s_info.m_reg_close_key)( reg_key ) != ERROR_SUCCESS )
+        return false;
+
+    // *************************************************** //
+    // Debugger command line
+
+    char cmd_line[MAX_CMD_LINE];
+    std::sprintf( cmd_line, format, ::GetCurrentProcessId(), dbg_init_done_ev );
+
+    // *************************************************** //
+    // Debugger window parameters
+
+    STARTUPINFOA    startup_info;
+    std::memset( &startup_info, 0, sizeof(startup_info) );
+
+    startup_info.cb             = sizeof(startup_info);
+    startup_info.dwFlags        = STARTF_USESHOWWINDOW;
+    startup_info.wShowWindow    = SW_SHOWNORMAL;
+
+    // debugger process s_info
+    PROCESS_INFORMATION debugger_info;
+
+    bool created = !!::CreateProcessA(
+        NULL,           // pointer to name of executable module; NULL - use the one in command line
+        cmd_line,       // pointer to command line string
+        NULL,           // pointer to process security attributes; NULL - debugger's handle can't be inherited
+        NULL,           // pointer to thread security attributes; NULL - debugger's handle can't be inherited
+        true,           // debugger inherit opened handles
+        0,              // priority flags; 0 - normal priority
+        NULL,           // pointer to new environment block; NULL - use this process environment
+        NULL,           // pointer to current directory name; NULL - use this process correct directory
+        &startup_info,  // pointer to STARTUPINFO that specifies main window appearance
+        &debugger_info  // pointer to PROCESS_INFORMATION that will contain the new process identification
+    );
+
+    if( created )
+        ::WaitForSingleObject( dbg_init_done_ev, INFINITE );
+
+    ::CloseHandle( dbg_init_done_ev );
+
+    if( !created )
+        return false;
+
+    if( break_or_continue )
+        debugger_break();
+
+    return true;
+
+#elif defined(BOOST_UNIX_BASED_DEBUG) // ********************** UNIX
+
+    char init_done_lock_fn[] = "/tmp/btl_dbg_init_done_XXXXXX";
+    fd_holder init_done_lock_fd( ::mkstemp( init_done_lock_fn ) );
+
+    if( init_done_lock_fd == -1 )
+        return false;
+    
+    pid_t child_pid = fork();
+
+    if( child_pid == -1 )
+        return false;
+
+    if( child_pid != 0 ) { // parent process - here we will start the debugger
+        dbg_startup_info dsi;
+    
+        process_info pi( child_pid );
+        if( pi.binary_path().is_empty() )
+            ::exit( -1 );
+
+        dsi.pid                 = child_pid;
+        dsi.break_or_continue   = break_or_continue;
+        dsi.binary_path         = pi.binary_path();
+        dsi.display             = ::getenv( "DISPLAY" );
+        dsi.init_done_lock      = init_done_lock_fn;
+        
+        dbg_starter starter = s_info.m_dbg_starter_reg[s_info.p_dbg];
+        if( !!starter )
+            starter( dsi );
+
+        ::perror( "Boost.Test execution monitor failed to start a debugger:" );
+
+        ::exit( -1 );
+    }
+
+    // child process - here we will continue our test module execution ; // !! ?? should it be vice versa
+
+    while( ::access( init_done_lock_fn, F_OK ) == 0 ) {
+        struct timeval to = { 0, 100 };
+
+        ::select( 0, 0, 0, 0, &to );
+    }
+
+//    char dummy;
+//    while( ::read( init_done_lock_fd, &dummy, sizeof(char) ) == 0 );
+
+    if( break_or_continue )
+        debugger_break();
+
+    return true;
+
+#else // ****************************************************** default
+
+    return false;
+
+#endif
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************   switch on/off detect memory leaks feature  ************** //
+// ************************************************************************** //
+
+void
+detect_memory_leaks( bool on_off )
+{
+    unit_test::ut_detail::ignore_unused_variable_warning( on_off );
+
+#ifdef BOOST_MS_CRT_BASED_DEBUG
+    int flags = _CrtSetDbgFlag( _CRTDBG_REPORT_FLAG );
+
+    if( !on_off )
+        flags &= ~_CRTDBG_LEAK_CHECK_DF;
+    else  {
+        flags |= _CRTDBG_LEAK_CHECK_DF;
+        _CrtSetReportMode(_CRT_WARN, _CRTDBG_MODE_FILE);
+        _CrtSetReportFile(_CRT_WARN, _CRTDBG_FILE_STDOUT);
+    }
+
+    _CrtSetDbgFlag ( flags );
+#endif // BOOST_MS_CRT_BASED_DEBUG
+}
+
+//____________________________________________________________________________//
+
+// ************************************************************************** //
+// **************      cause program to break execution in     ************** //
+// **************     debugger at specific allocation point    ************** //
+// ************************************************************************** //
+
+void
+break_memory_alloc( long mem_alloc_order_num )
+{
+    unit_test::ut_detail::ignore_unused_variable_warning( mem_alloc_order_num );
+
+#ifdef BOOST_MS_CRT_BASED_DEBUG
+    _CrtSetBreakAlloc( mem_alloc_order_num );
+#endif // BOOST_MS_CRT_BASED_DEBUG
+}
+
+} // namespace debug
+
+} // namespace boost
+
+//____________________________________________________________________________//
+
+#include <boost/test/detail/enable_warnings.hpp>
+
+#endif // BOOST_TEST_DEBUG_API_IPP_112006GER
+