connection_type get_connection(const command& cmd)
{
connection_type connection;
connection.retries = cmd.get_server_connect_retries_setting();
connection.timeout_seconds = cmd.get_server_connect_timeout_seconds_setting();
connection.server = cmd.get_server_url_setting();
connection.server_public_key = cmd.get_server_server_public_key_setting();
connection.client_private_key = cmd.get_server_client_private_key_setting();
return connection;
}
caf::message run(const command& cmd, caf::actor_system& sys,
caf::settings& options,
command::argument_iterator first,
command::argument_iterator last) {
using caf::get_or;
using caf::make_message;
VAST_TRACE(VAST_ARG(std::string(cmd.name)), VAST_ARG("args", first, last),
VAST_ARG(options));
// Parse arguments for this command.
auto [state, position] = cmd.options.parse(options, first, last);
bool has_subcommand;
switch(state) {
default:
return make_error_msg(cmd, ec::unrecognized_option, *position);
case caf::pec::success:
has_subcommand = false;
break;
case caf::pec::not_an_option:
has_subcommand = position != last;
break;
}
if (position != last && detail::starts_with(*position, "-"))
return make_error_msg(cmd, ec::unrecognized_option, *position);
// Check for help option.
if (get_or<bool>(options, "help", false)
|| (has_subcommand && *position == "help")) {
helptext(cmd, std::cerr);
return caf::none;
}
// Invoke cmd.run if no subcommand was defined.
if (!has_subcommand) {
// Commands without a run implementation require subcommands.
if (cmd.run == nullptr)
return make_error_msg(cmd, ec::missing_subcommand, "");
return cmd.run(cmd, sys, options, position, last);
}
// Consume CLI arguments if we have arguments but don't have subcommands.
if (cmd.children.empty())
return cmd.run(cmd, sys, options, position, last);
// Dispatch to subcommand.
// TODO: We need to copy the iterator here, because structured binding cannot
// be captured. Clang reports the error "reference to local binding
// 'position' declared in enclosing function 'vast::command::run'" when
// trying to use the structured binding inside the lambda.
// See also: https://stackoverflow.com/questions/46114214. Remove this
// workaround when all supported compilers accept accessing structured
// bindings from lambdas.
auto i = std::find_if(cmd.children.begin(), cmd.children.end(),
[p = position](auto& x) { return x->name == *p; });
if (i == cmd.children.end())
return make_error_msg(cmd, ec::invalid_subcommand, *position);
return run(**i, sys, options, position + 1, last);
}
int show_log_helper( command::log_opt_t& result, const command& cmd, const show_commands_t& show_commands )
{
constexpr auto option = store_info<S>::option;
if ( cmd.is_set( option ) )
{
result = boost::any_cast<std::shared_ptr<show_store_entry<S>>>( show_commands.at( option ) )->log();
}
return 0;
}
int show_helper( bool& result, command& cmd, const environment::ptr& env, show_commands_t& show_commands, const std::string& dotname )
{
constexpr auto option = store_info<S>::option;
if ( cmd.is_set( option ) )
{
result = boost::any_cast<std::shared_ptr<show_store_entry<S>>>( show_commands[option] )->operator()( env->store<S>().current(), dotname, cmd );
}
return 0;
}
void store_write_io_type<circuit, io_quipper_tag_t>( const circuit& circ, const std::string& filename, const command& cmd )
{
if ( cmd.is_set( "ascii" ) )
{
write_quipper_ascii( circ, filename );
}
else
{
write_quipper( circ, filename );
}
}
void store_write_io_type<circuit, io_tikz_tag_t>( const circuit& circ, const std::string& filename, const command& cmd )
{
create_tikz_settings ct_settings;
ct_settings.draw_io = !cmd.is_set( "hideio" );
std::ofstream os( filename.c_str() );
if ( cmd.is_set( "standalone" ) )
{
os << "\\documentclass{standalone}" << std::endl
<< "\\usepackage{tikz}" << std::endl << std::endl
<< "\\begin{document}" << std::endl;
}
create_image( os, circ, ct_settings );
if ( cmd.is_set( "standalone" ) )
{
os << "\\end{document}" << std::endl;
}
}
circuit store_read_io_type<circuit, io_real_tag_t>( const std::string& filename, const command& cmd )
{
if ( cmd.is_set( "string" ) )
{
return circuit_from_string( cmd.vm["string"].as<std::string>() );
}
else
{
circuit circ;
read_realization( circ, filename );
return circ;
}
}
binary_truth_table store_read_io_type<binary_truth_table, io_spec_tag_t>( const std::string& filename, const command& cmd )
{
if ( cmd.is_set( "permutation" ) )
{
std::vector<unsigned> perm;
parse_string_list( perm, cmd.vm["permutation"].as<std::string>() );
return permutation_to_truth_table( perm );
}
else
{
binary_truth_table spec;
read_specification( spec, filename );
return spec;
}
}
bool show_store_entry<rcbdd>::operator()( rcbdd& bdd,
const std::string& dotname,
const command& cmd )
{
using namespace std::placeholders;
auto * fd = fopen( dotname.c_str(), "w" );
if ( cmd.is_set( "add" ) )
{
bdd.manager().DumpDot( std::vector<ADD>{bdd.chi().Add()}, 0, 0, fd );
}
else
{
bdd.manager().DumpDot( std::vector<BDD>{bdd.chi()}, 0, 0, fd );
}
fclose( fd );
return true;
}
boost::optional<command::iterator> metashell::parse_pragma(const command& cmd_)
{
command::iterator i = skip_whitespace(cmd_.begin(), cmd_.end());
if (
i != cmd_.end()
&& (
i->type() == token_type::p_pragma
|| i->type() == token_type::operator_pound
)
)
{
i = skip_whitespace(skip(i), cmd_.end());
if (
i != cmd_.end()
&& i->type() == token_type::identifier
&& (i->value() == "metashell" || i->value() == "msh")
)
{
i = skip_whitespace(skip(i), cmd_.end());
if (i == cmd_.end() || i->value().empty())
{
throw exception("The name of the metashell pragma is missing.");
}
else if (i->type() == token_type::identifier)
{
return i;
}
else
{
std::ostringstream s;
s << "Invalid pragma name " << i->value();
throw exception(s.str());
}
}
}
return boost::optional<command::iterator>();
}
connection_type get_connection(const command& cmd)
{
if (is_testnet(cmd.get_general_network_setting()))
return connection_type
{
cmd.get_general_retries_setting(),
period_ms(cmd.get_general_wait_setting()),
cmd.get_testnet_cert_file_setting(),
cmd.get_testnet_url_setting(),
cmd.get_testnet_server_cert_key_setting()
};
else return connection_type
{
cmd.get_general_retries_setting(),
period_ms(cmd.get_general_wait_setting()),
cmd.get_mainnet_cert_file_setting(),
cmd.get_mainnet_url_setting(),
cmd.get_mainnet_server_cert_key_setting()
};
}
void
command_completion_visitor::visit( const command& obj )
{
// FIXME: push aliases too?
alternatives.push_back( obj.get_name() );
}
int executor::runCom(command& thisCom,BuildIn& shellBuild)
{
int myPid[10];
int cpos=0,rpos=0;
if(cpos>=thisCom.tokLen) return(0);
char path[]="PATH=/bin:/usr/bin:./";
putenv(path);
if(thisCom.toks[0]->cat==9){
if(thisCom.toks[0]->tok.compare("cd")==0){
shellBuild.handleCD(thisCom);
}else if(thisCom.toks[0]->tok.compare("exit")==0){
shellBuild.handleExit(thisCom);
}else if(thisCom.toks[0]->tok.compare("fg")==0){
shellBuild.handleFG(thisCom);
}else if(thisCom.toks[0]->tok.compare("jobs")==0){
shellBuild.handleJobs(thisCom);
}else{
cout << "Error: Invalid Build-In\n";
}
}else if(thisCom.toks[0]->cat==8)
{
thisCom.getNextCom(cpos);
inRed.checkRed(thisCom,cpos,thisCom.tokLen);
outRed.checkRed(thisCom,cpos,thisCom.tokLen);
inRed.checkRed(thisCom,cpos,thisCom.tokLen);
outRed.checkRed(thisCom,cpos,thisCom.tokLen);
thisCom.getAllRecur(cpos);
outRed.checkRed(thisCom,cpos,thisCom.tokLen);
pipef.creatPipe(thisCom.pipeLen-1);
while(rpos<thisCom.pipeLen)
{
myPid[rpos]=fork();
if (myPid[rpos]==-1)
{
cout<<"Can not create new process\n";
exit(-1);
}
else if(myPid[rpos]==0)
{
signal(SIGINT,SIG_DFL);
signal(SIGTSTP,SIG_DFL);
if(debugmode) cout<<"This is child "<<rpos<<"\n";
pipef.setPipe(rpos);
if(rpos==0)
if(inRed.setInRed()!=0) exit(-1);
if(rpos==thisCom.pipeLen-1)
if(outRed.setOutRed()!=0) exit(-1);
if(debugmode) cout<<"Child "<<rpos<<" "<<thisCom.pipeArg[rpos][0]<<" jump to new process\n";
if(execvp(thisCom.pipeArg[rpos][0],thisCom.pipeArg[rpos])==-1)
{
if(errno==ENOENT)
{
cerr<<thisCom.pipeArg[rpos][0]<<": command not found\n";
}
else
{
cerr<<thisCom.pipeArg[rpos][0]<<": unknown error\n";
}
}
exit(-1);
}
else
{
if(debugmode) cout<<"This is father after "<<rpos<<" fork\n";
rpos++;
}
}
if(debugmode) cout<<"Father return after wait\n";
string comName="";
for (int i=0; i<thisCom.tokLen; i++)
{
if (i!=0) comName+=" ";
comName+=thisCom.toks[i]->tok;
}
for(int i=thisCom.pipeLen; i<10; i++) myPid[i]=-1;
int fd[2],fd2[2];
if(thisCom.pipeLen<3)
{
fd2[0]=-1; fd2[1]=-1;
}
else
{
fd2[0]=pipef.pipefd[1][0];
fd2[1]=pipef.pipefd[1][1];
}
if(thisCom.pipeLen<2)
{
fd[0]=-1; fd[1]=-1;
}
else
{
fd[0]=pipef.pipefd[0][0];
fd[1]=pipef.pipefd[0][1];
}
shellBuild.waitingFor(comName,myPid,fd,fd2);
inRed.reSet();
outRed.reSet();
}
return 0;
}
inline command::rule_t file_exists_if_set( const command& cmd, const std::string& filename, const std::string& argname )
{
return { [&cmd, filename, argname]() { return !cmd.is_set( argname ) || boost::filesystem::exists( filename ); }, argname + " does not exist" };
}
