blob: 7fef1474098f197d0ca59e01eb5ab9d956610341 [file] [log] [blame]
// process jam regression test output into XML -----------------------------//
// Copyright Beman Dawes 2002. 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)
// See http://www.boost.org/tools/regression for documentation.
#include <boost/config/warning_disable.hpp>
#include "detail/tiny_xml.hpp"
#include "boost/filesystem/operations.hpp"
#include "boost/filesystem/fstream.hpp"
#include "boost/filesystem/exception.hpp"
#include "boost/filesystem/convenience.hpp"
#include <iostream>
#include <string>
#include <cstring>
#include <map>
#include <utility> // for make_pair
#include <ctime>
#include <cctype> // for tolower
#include <cstdlib> // for exit
using std::string;
namespace xml = boost::tiny_xml;
namespace fs = boost::filesystem;
// options
static bool echo = false;
static bool create_dirs = false;
static bool boost_build_v2 = true;
namespace
{
struct test_info
{
string file_path; // relative boost-root
string type;
bool always_show_run_output;
};
typedef std::map< string, test_info > test2info_map; // key is test-name
test2info_map test2info;
fs::path boost_root;
fs::path locate_root; // ALL_LOCATE_TARGET (or boost_root if none)
// set_boost_root --------------------------------------------------------//
void set_boost_root()
{
boost_root = fs::initial_path();
for(;;)
{
if ( fs::exists( boost_root / "libs" ) )
{
fs::current_path( fs::initial_path() ); // restore initial path
return;
}
fs::current_path( ".." );
if ( boost_root == fs::current_path() )
{
fs::current_path( fs::initial_path() ); // restore initial path
std::cout <<
"Abort: process_jam_log must be run from within a boost directory tree\n";
std::exit(1);
}
boost_root = fs::current_path();
}
}
// append_html -------------------------------------------------------------//
void append_html( const string & src, string & target )
{
// there are a few lines we want to ignore
if ( src.find( "th target..." ) != string::npos
|| src.find( "cc1plus.exe: warning: changing search order for system directory" ) != string::npos
|| src.find( "cc1plus.exe: warning: as it has already been specified as a non-system directory" ) != string::npos
) return;
// on some platforms (e.g. tru64cxx) the following line is a real performance boost
target.reserve(src.size() * 2 + target.size());
for ( string::size_type pos = 0; pos < src.size(); ++pos )
{
if ( src[pos] == '<' ) target += "&lt;";
else if ( src[pos] == '>' ) target += "&gt;";
else if ( src[pos] == '&' ) target += "&amp;";
else target += src[pos];
}
}
// timestamp ---------------------------------------------------------------//
string timestamp()
{
char run_date[128];
std::time_t tod;
std::time( &tod );
std::strftime( run_date, sizeof(run_date),
"%Y-%m-%d %X UTC", std::gmtime( &tod ) );
return string( run_date );
}
// convert path separators to forward slashes ------------------------------//
void convert_path_separators( string & s )
{
for ( string::iterator itr = s.begin(); itr != s.end(); ++itr )
if ( *itr == '\\' || *itr == '!' ) *itr = '/';
}
// trim_left ----------------------------------------------------------------//
std::string trim_left( std::string const& s )
{
std::string::size_type const pos( s.find_first_not_of(' ') );
return pos != std::string::npos
? s.substr( pos, s.size() - pos + 1 )
: ""
;
}
// split --------------------------------------------------------------------//
std::vector<std::string> split( std::string const& s )
{
std::string::size_type const pos( s.find_first_of(' ') );
std::vector<std::string> result( 1, s.substr( 0, pos ) );
if ( pos == std::string::npos )
return result;
std::vector<std::string> const rest( split( trim_left( s.substr( pos, s.size() - pos + 1 ) ) ) );
result.insert( result.end(), rest.begin(), rest.end() );
return result;
}
// extract a target directory path from a jam target string ----------------//
// s may be relative to the initial_path:
// ..\..\..\libs\foo\build\bin\libfoo.lib\vc7\debug\runtime-link-dynamic\boo.obj
// s may be absolute:
// d:\myboost\libs\foo\build\bin\libfoo.lib\vc7\debug\runtime-link-dynamic\boo.obj
// return path is always relative to the boost directory tree:
// libs/foo/build/bin/libfs.lib/vc7/debug/runtime-link-dynamic
string target_directory( const string & s )
{
string temp( s );
convert_path_separators( temp );
temp.erase( temp.find_last_of( "/" ) ); // remove leaf
temp = split( trim_left( temp ) ).back();
if ( temp[0] == '.' ) temp.erase( 0, temp.find_first_not_of( "./" ) );
else temp.erase( 0, locate_root.string().size()+1 );
if ( echo )
std::cout << "\ttarget_directory( \"" << s << "\") -> \"" << temp << "\"" << std::endl;
return temp;
}
string::size_type target_name_end( const string & s )
{
string::size_type pos = s.find( ".test/" );
if ( pos == string::npos ) pos = s.find( ".dll/" );
if ( pos == string::npos ) pos = s.find( ".so/" );
if ( pos == string::npos ) pos = s.find( ".lib/" );
if ( pos == string::npos ) pos = s.find( ".pyd/" );
if ( pos == string::npos ) pos = s.find( ".a/" );
return pos;
}
string toolset( const string & s )
{
string::size_type pos = target_name_end( s );
if ( pos == string::npos ) pos = s.find( "build/" );
if ( pos == string::npos ) return "";
pos = s.find( "/", pos ) + 1;
return s.substr( pos, s.find( "/", pos ) - pos );
}
string test_name( const string & s )
{
string::size_type pos = target_name_end( s );
if ( pos == string::npos ) return "";
string::size_type pos_start = s.rfind( '/', pos ) + 1;
return s.substr( pos_start,
(s.find( ".test/" ) != string::npos
? pos : s.find( "/", pos )) - pos_start );
}
// Take a path to a target directory of test, and
// returns library name corresponding to that path.
string test_path_to_library_name( string const& path )
{
std::string result;
string::size_type start_pos( path.find( "libs/" ) );
if ( start_pos != string::npos )
{
// The path format is ...libs/functional/hash/test/something.test/....
// So, the part between "libs" and "test/something.test" can be considered
// as library name. But, for some libraries tests are located too deep,
// say numeric/ublas/test/test1 directory, and some libraries have tests
// in several subdirectories (regex/example and regex/test). So, nested
// directory may belong to several libraries.
// To disambituate, it's possible to place a 'sublibs' file in
// a directory. It means that child directories are separate libraries.
// It's still possible to have tests in the directory that has 'sublibs'
// file.
std::string interesting;
start_pos += 5;
string::size_type end_pos( path.find( ".test/", start_pos ) );
end_pos = path.rfind('/', end_pos);
if (path.substr(end_pos - 5, 5) == "/test")
interesting = path.substr( start_pos, end_pos - 5 - start_pos );
else
interesting = path.substr( start_pos, end_pos - start_pos );
// Take slash separate elements until we have corresponding 'sublibs'.
end_pos = 0;
for(;;)
{
end_pos = interesting.find('/', end_pos);
if (end_pos == string::npos) {
result = interesting;
break;
}
result = interesting.substr(0, end_pos);
if ( fs::exists( ( boost_root / "libs" ) / result / "sublibs" ) )
{
end_pos = end_pos + 1;
}
else
break;
}
}
return result;
}
// Tries to find target name in the string 'msg', starting from
// position start.
// If found, extract the directory name from the target name and
// stores it in 'dir', and return the position after the target name.
// Otherwise, returns string::npos.
string::size_type parse_skipped_msg_aux(const string& msg,
string::size_type start,
string& dir)
{
dir.clear();
string::size_type start_pos = msg.find( '<', start );
if ( start_pos == string::npos ) return string::npos;
++start_pos;
string::size_type end_pos = msg.find( '>', start_pos );
dir += msg.substr( start_pos, end_pos - start_pos );
if ( boost_build_v2 )
{
// The first letter is a magic value indicating
// the type of grist.
convert_path_separators( dir );
dir.erase( 0, 1 );
// We need path from root, not from 'status' dir.
if (dir.find("../") == 0)
dir.erase(0,3);
else // dir is always relative to the boost directory tree
dir.erase( 0, locate_root.string().size()+1 );
}
else
{
if ( dir[0] == '@' )
{
// new style build path, rooted build tree
convert_path_separators( dir );
dir.replace( 0, 1, "bin/" );
}
else
{
// old style build path, integrated build tree
start_pos = dir.rfind( '!' );
convert_path_separators( dir );
string::size_type path_sep_pos = dir.find( '/', start_pos + 1 );
if ( path_sep_pos != string::npos )
dir.insert( path_sep_pos, "/bin" );
else
{
// see http://article.gmane.org/gmane.comp.lib.boost.devel/146688;
// the following code assumes that: a) 'dir' is not empty,
// b) 'end_pos != string::npos' and c) 'msg' always ends with '...'
if ( dir[dir.size() - 1] == '@' )
dir += "/" + msg.substr( end_pos + 1, msg.size() - end_pos - 1 - 3 );
}
}
}
return end_pos;
}
// the format of paths is really kinky, so convert to normal form
// first path is missing the leading "..\".
// first path is missing "\bin" after "status".
// second path is missing the leading "..\".
// second path is missing "\bin" after "build".
// second path uses "!" for some separators.
void parse_skipped_msg( const string & msg,
string & first_dir, string & second_dir )
{
string::size_type pos = parse_skipped_msg_aux(msg, 0, first_dir);
if (pos == string::npos)
return;
parse_skipped_msg_aux(msg, pos, second_dir);
}
// test_log hides database details -----------------------------------------//
class test_log
: boost::noncopyable
{
const string & m_target_directory;
xml::element_ptr m_root;
public:
test_log( const string & target_directory,
const string & test_name,
const string & toolset,
bool force_new_file )
: m_target_directory( target_directory )
{
if ( !force_new_file )
{
fs::path pth( locate_root / target_directory / "test_log.xml" );
fs::ifstream file( pth );
if ( file ) // existing file
{
try
{
m_root = xml::parse( file, pth.string() );
return;
}
catch(...)
{
// unable to parse existing XML file, fall through
}
}
}
string library_name( test_path_to_library_name( target_directory ) );
test_info info;
test2info_map::iterator itr( test2info.find( library_name + "/" + test_name ) );
if ( itr != test2info.end() )
info = itr->second;
if ( !info.file_path.empty() )
library_name = test_path_to_library_name( info.file_path );
if ( info.type.empty() )
{
if ( target_directory.find( ".lib/" ) != string::npos
|| target_directory.find( ".dll/" ) != string::npos
|| target_directory.find( ".so/" ) != string::npos
|| target_directory.find( ".dylib/" ) != string::npos
|| target_directory.find( "/build/" ) != string::npos
)
{
info.type = "lib";
}
else if ( target_directory.find( ".pyd/" ) != string::npos )
info.type = "pyd";
}
m_root.reset( new xml::element( "test-log" ) );
m_root->attributes.push_back(
xml::attribute( "library", library_name ) );
m_root->attributes.push_back(
xml::attribute( "test-name", test_name ) );
m_root->attributes.push_back(
xml::attribute( "test-type", info.type ) );
m_root->attributes.push_back(
xml::attribute( "test-program", info.file_path ) );
m_root->attributes.push_back(
xml::attribute( "target-directory", target_directory ) );
m_root->attributes.push_back(
xml::attribute( "toolset", toolset ) );
m_root->attributes.push_back(
xml::attribute( "show-run-output",
info.always_show_run_output ? "true" : "false" ) );
}
~test_log()
{
fs::path pth( locate_root / m_target_directory / "test_log.xml" );
if ( create_dirs && !fs::exists( pth.branch_path() ) )
fs::create_directories( pth.branch_path() );
fs::ofstream file( pth );
if ( !file )
{
std::cout << "*****Warning - can't open output file: "
<< pth.string() << "\n";
}
else xml::write( *m_root, file );
}
const string & target_directory() const { return m_target_directory; }
void remove_action( const string & action_name )
// no effect if action_name not found
{
xml::element_list::iterator itr;
for ( itr = m_root->elements.begin();
itr != m_root->elements.end() && (*itr)->name != action_name;
++itr ) {}
if ( itr != m_root->elements.end() ) m_root->elements.erase( itr );
}
void add_action( const string & action_name,
const string & result,
const string & timestamp,
const string & content )
{
remove_action( action_name );
xml::element_ptr action( new xml::element(action_name) );
m_root->elements.push_back( action );
action->attributes.push_back( xml::attribute( "result", result ) );
action->attributes.push_back( xml::attribute( "timestamp", timestamp ) );
action->content = content;
}
};
// message_manager maps input messages into test_log actions ---------------//
class message_manager
: boost::noncopyable
{
string m_action_name; // !empty() implies action pending
// IOW, a start_message awaits stop_message
string m_target_directory;
string m_test_name;
string m_toolset;
bool m_note; // if true, run result set to "note"
// set false by start_message()
// data needed to stop further compile action after a compile failure
// detected in the same target directory
string m_previous_target_directory;
bool m_compile_failed;
public:
message_manager() : m_note(false) {}
~message_manager() { /*assert( m_action_name.empty() );*/ }
bool note() const { return m_note; }
void note( bool value ) { m_note = value; }
void start_message( const string & action_name,
const string & target_directory,
const string & test_name,
const string & toolset,
const string & prior_content )
{
assert( !target_directory.empty() );
if ( !m_action_name.empty() ) stop_message( prior_content );
m_action_name = action_name;
m_target_directory = target_directory;
m_test_name = test_name;
m_toolset = toolset;
m_note = false;
if ( m_previous_target_directory != target_directory )
{
m_previous_target_directory = target_directory;
m_compile_failed = false;
}
}
void stop_message( const string & content )
{
if ( m_action_name.empty() ) return;
stop_message( m_action_name, m_target_directory,
"succeed", timestamp(), content );
}
void stop_message( const string & action_name,
const string & target_directory,
const string & result,
const string & timestamp,
const string & content )
// the only valid action_names are "compile", "link", "run", "lib"
{
// My understanding of the jam output is that there should never be
// a stop_message that was not preceeded by a matching start_message.
// That understanding is built into message_manager code.
assert( m_action_name == action_name );
assert( m_target_directory == target_directory );
assert( result == "succeed" || result == "fail" );
// if test_log.xml entry needed
if ( !m_compile_failed
|| action_name != "compile"
|| m_previous_target_directory != target_directory )
{
if ( action_name == "compile"
&& result == "fail" ) m_compile_failed = true;
test_log tl( target_directory,
m_test_name, m_toolset, action_name == "compile" );
tl.remove_action( "lib" ); // always clear out lib residue
// dependency removal
if ( action_name == "lib" )
{
tl.remove_action( "compile" );
tl.remove_action( "link" );
tl.remove_action( "run" );
}
else if ( action_name == "compile" )
{
tl.remove_action( "link" );
tl.remove_action( "run" );
if ( result == "fail" ) m_compile_failed = true;
}
else if ( action_name == "link" )
{
tl.remove_action( "run" );
}
// dependency removal won't work right with random names, so assert
else { assert( action_name == "run" ); }
// add the "run" stop_message action
tl.add_action( action_name,
result == "succeed" && note() ? std::string("note") : result,
timestamp, content );
}
m_action_name = ""; // signal no pending action
m_previous_target_directory = target_directory;
}
};
}
// main --------------------------------------------------------------------//
int main( int argc, char ** argv )
{
// Turn off synchronization with corresponding C standard library files. This
// gives a significant speed improvement on platforms where the standard C++
// streams are implemented using standard C files.
std::ios::sync_with_stdio(false);
fs::initial_path();
std::istream* input = 0;
if ( argc <= 1 )
{
std::cout << "process_jam_log [--echo] [--create-directories] [--v1|--v2]\n"
" [--boost-root boost_root] [--locate-root locate_root]\n"
" [--input-file input_file]\n"
" [locate-root]\n"
"--echo - verbose diagnostic output.\n"
"--create-directories - if the directory for xml file doesn't exists - creates it.\n"
" usually used for processing logfile on different machine\n"
"--v2 - bjam version 2 used (default).\n"
"--v1 - bjam version 1 used.\n"
"--boost-root - the root of the boost installation being used. If not defined\n"
" assume to run from within it and discover it heuristically.\n"
"--locate-root - the same as the bjam ALL_LOCATE_TARGET\n"
" parameter, if any. Default is boost-root.\n"
"--input-file - the output of a bjam --dump-tests run. Default is std input.\n"
;
return 1;
}
while ( argc > 1 )
{
if ( std::strcmp( argv[1], "--echo" ) == 0 )
{
echo = true;
--argc; ++argv;
}
else if ( std::strcmp( argv[1], "--create-directories" ) == 0 )
{
create_dirs = true;
--argc; ++argv;
}
else if ( std::strcmp( argv[1], "--v2" ) == 0 )
{
boost_build_v2 = true;
--argc; ++argv;
}
else if ( std::strcmp( argv[1], "--v1" ) == 0 )
{
boost_build_v2 = false;
--argc; ++argv;
}
else if ( std::strcmp( argv[1], "--boost-root" ) == 0 )
{
--argc; ++argv;
if ( argc == 1 )
{
std::cout << "Abort: option --boost-root requires a directory argument\n";
std::exit(1);
}
boost_root = fs::path( argv[1], fs::native );
if ( !boost_root.is_complete() )
boost_root = ( fs::initial_path() / boost_root ).normalize();
--argc; ++argv;
}
else if ( std::strcmp( argv[1], "--locate-root" ) == 0 )
{
--argc; ++argv;
if ( argc == 1 )
{
std::cout << "Abort: option --locate-root requires a directory argument\n";
std::exit(1);
}
locate_root = fs::path( argv[1], fs::native );
--argc; ++argv;
}
else if ( std::strcmp( argv[1], "--input-file" ) == 0 )
{
--argc; ++argv;
if ( argc == 1 )
{
std::cout << "Abort: option --input-file requires a filename argument\n";
std::exit(1);
}
input = new std::ifstream(argv[1]);
--argc; ++argv;
}
else if ( *argv[1] == '-' )
{
std::cout << "Abort: unknown option; invoke with no arguments to see list of valid options\n";
return 1;
}
else
{
locate_root = fs::path( argv[1], fs::native );
--argc; ++argv;
}
}
if ( boost_root.empty() )
{
set_boost_root();
boost_root.normalize();
}
if ( locate_root.empty() )
{
locate_root = boost_root;
}
else if ( !locate_root.is_complete() )
{
locate_root = ( fs::initial_path() / locate_root ).normalize();
}
if ( input == 0 )
{
input = &std::cin;
}
std::cout << "boost_root: " << boost_root.string() << '\n'
<< "locate_root: " << locate_root.string() << '\n';
message_manager mgr;
string line;
string content;
bool capture_lines = false;
// This loop looks at lines for certain signatures, and accordingly:
// * Calls start_message() to start capturing lines. (start_message() will
// automatically call stop_message() if needed.)
// * Calls stop_message() to stop capturing lines.
// * Capture lines if line capture on.
static const int max_line_length = 8192;
int line_num = 0;
while ( std::getline( *input, line ) )
{
if (max_line_length < line.size()) line = line.substr(0, max_line_length);
++line_num;
std::vector<std::string> const line_parts( split( line ) );
std::string const line_start( line_parts[0] != "...failed"
? line_parts[0]
: line_parts[0] + " " + line_parts[1]
);
if ( echo )
{
std::cout
<< "line " << line_num << ": " << line << "\n"
<< "\tline_start: " << line_start << "\n";
}
// create map of test-name to test-info
if ( line_start.find( "boost-test(" ) == 0 )
{
string::size_type pos = line.find( '"' );
string test_name( line.substr( pos+1, line.find( '"', pos+1)-pos-1 ) );
test_info info;
info.always_show_run_output
= line.find( "\"always_show_run_output\"" ) != string::npos;
info.type = line.substr( 11, line.find( ')' )-11 );
for (unsigned int i = 0; i!=info.type.size(); ++i )
{ info.type[i] = std::tolower( info.type[i] ); }
pos = line.find( ':' );
// the rest of line is missing if bjam didn't know how to make target
if ( pos + 1 != line.size() )
{
info.file_path = line.substr( pos+3,
line.find( "\"", pos+3 )-pos-3 );
convert_path_separators( info.file_path );
if ( info.file_path.find( "libs/libs/" ) == 0 ) info.file_path.erase( 0, 5 );
if ( test_name.find( "/" ) == string::npos )
test_name = "/" + test_name;
test2info.insert( std::make_pair( test_name, info ) );
// std::cout << test_name << ", " << info.type << ", " << info.file_path << "\n";
}
else
{
std::cout << "*****Warning - missing test path: " << line << "\n"
<< " (Usually occurs when bjam doesn't know how to make a target)\n";
}
continue;
}
// these actions represent both the start of a new action
// and the end of a failed action
else if ( line_start.find( "C++-action" ) != string::npos
|| line_start.find( "vc-C++" ) != string::npos
|| line_start.find( "C-action" ) != string::npos
|| line_start.find( "Cc-action" ) != string::npos
|| line_start.find( "vc-Cc" ) != string::npos
|| line_start.find( ".compile.") != string::npos
|| line_start.find( "compile-") != string::npos
|| line_start.find( "-compile") != string::npos
|| line_start.find( "Link-action" ) != string::npos
|| line_start.find( "vc-Link" ) != string::npos
|| line_start.find( "Archive-action" ) != string::npos
|| line_start.find( ".archive") != string::npos
|| ( line_start.find( ".link") != string::npos &&
// .linkonce is present in gcc linker messages about
// unresolved symbols. We don't have to parse those
line_start.find( ".linkonce" ) == string::npos )
)
{
if ( !test2info.size() )
{
std::cout << "*****Error - No \"boost-test\" lines encountered.\n"
" (Usually occurs when bjam was envoked without the --dump-tests option\n"
" or bjam was envoked in the wrong directory)\n";
return 1;
}
string action( ( line_start.find( "Link-action" ) != string::npos
|| line_start.find( "vc-Link" ) != string::npos
|| line_start.find( "Archive-action" ) != string::npos
|| line_start.find( ".archive") != string::npos
|| line_start.find( ".link") != string::npos
)
? "link" : "compile"
);
if ( line_start.find( "...failed " ) != string::npos )
{
mgr.stop_message( action, target_directory( line ),
"fail", timestamp(), content );
}
else
{
string target_dir( target_directory( line ) );
mgr.start_message( action, target_dir,
test_name( target_dir ), toolset( target_dir ), content );
}
content = "\n";
capture_lines = true;
}
// these actions are only used to stop the previous action
else if ( line_start.find( "-Archive" ) != string::npos
|| line_start.find( "MkDir" ) == 0 )
{
mgr.stop_message( content );
content.clear();
capture_lines = false;
}
else if ( line_start.find( "execute-test" ) != string::npos
|| line_start.find( "capture-output" ) != string::npos )
{
if ( line_start.find( "...failed " ) != string::npos )
{
mgr.stop_message( "run", target_directory( line ),
"fail", timestamp(), content );
content = "\n";
capture_lines = true;
}
else
{
string target_dir( target_directory( line ) );
mgr.start_message( "run", target_dir,
test_name( target_dir ), toolset( target_dir ), content );
// contents of .output file for content
capture_lines = false;
content = "\n";
fs::ifstream file( locate_root / target_dir
/ (test_name(target_dir) + ".output") );
if ( file )
{
string ln;
while ( std::getline( file, ln ) )
{
if ( ln.find( "<note>" ) != string::npos ) mgr.note( true );
append_html( ln, content );
content += "\n";
}
}
}
}
// bjam indicates some prior dependency failed by a "...skipped" message
else if ( line_start.find( "...skipped" ) != string::npos
&& line.find( "<directory-grist>" ) == string::npos
)
{
mgr.stop_message( content );
content.clear();
capture_lines = false;
if ( line.find( " for lack of " ) != string::npos )
{
capture_lines = ( line.find( ".run for lack of " ) == string::npos );
string target_dir;
string lib_dir;
parse_skipped_msg( line, target_dir, lib_dir );
if ( target_dir != lib_dir ) // it's a lib problem
{
mgr.start_message( "lib", target_dir,
test_name( target_dir ), toolset( target_dir ), content );
content = lib_dir;
mgr.stop_message( "lib", target_dir, "fail", timestamp(), content );
content = "\n";
}
}
}
else if ( line_start.find( "**passed**" ) != string::npos
|| line_start.find( "failed-test-file" ) != string::npos
|| line_start.find( "command-file-dump" ) != string::npos )
{
mgr.stop_message( content );
content = "\n";
capture_lines = true;
}
else if ( capture_lines ) // hang onto lines for possible later use
{
append_html( line, content );;
content += "\n";
}
}
mgr.stop_message( content );
if (input != &std::cin)
delete input;
return 0;
}