264 lines
6.7 KiB
C++
264 lines
6.7 KiB
C++
// props.hxx -- FGFS property manager interaction class
|
|
//
|
|
// Written by Curtis Olson, started September 2000.
|
|
//
|
|
// Copyright (C) 2000 Curtis L. Olson - curt@flightgear.org
|
|
//
|
|
// This program is free software; you can redistribute it and/or
|
|
// modify it under the terms of the GNU General Public License as
|
|
// published by the Free Software Foundation; either version 2 of the
|
|
// License, or (at your option) any later version.
|
|
//
|
|
// This program is distributed in the hope that it will be useful, but
|
|
// WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
// General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with this program; if not, write to the Free Software
|
|
// Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
|
//
|
|
// $Id$
|
|
|
|
|
|
#include <Main/globals.hxx>
|
|
|
|
#include <simgear/compiler.h>
|
|
#include <simgear/debug/logstream.hxx>
|
|
#include <simgear/io/iochannel.hxx>
|
|
#include <simgear/math/sg_types.hxx>
|
|
#include <simgear/misc/props.hxx>
|
|
|
|
#include <stdlib.h> // atoi() atof()
|
|
|
|
#include <strstream>
|
|
|
|
#include "props.hxx"
|
|
|
|
FG_USING_STD(cout);
|
|
FG_USING_STD(istrstream);
|
|
|
|
FGProps::FGProps() {
|
|
}
|
|
|
|
FGProps::~FGProps() {
|
|
}
|
|
|
|
|
|
// open hailing frequencies
|
|
bool FGProps::open() {
|
|
path = "/";
|
|
|
|
if ( is_enabled() ) {
|
|
FG_LOG( FG_IO, FG_ALERT, "This shouldn't happen, but the channel "
|
|
<< "is already in use, ignoring" );
|
|
return false;
|
|
}
|
|
|
|
SGIOChannel *io = get_io_channel();
|
|
|
|
if ( ! io->open( get_direction() ) ) {
|
|
FG_LOG( FG_IO, FG_ALERT, "Error opening channel communication layer." );
|
|
return false;
|
|
}
|
|
|
|
set_enabled( true );
|
|
FG_LOG( FG_IO, FG_INFO, "Opening properties channel communication layer." );
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// return a human readable form of the value "type"
|
|
static string getValueTypeString( const SGValue *v ) {
|
|
string result;
|
|
|
|
if ( v == NULL ) {
|
|
return "unknown";
|
|
}
|
|
|
|
SGValue::Type type = v->getType();
|
|
if ( type == SGValue::UNKNOWN ) {
|
|
result = "unknown";
|
|
} else if ( type == SGValue::BOOL ) {
|
|
result = "bool";
|
|
} else if ( type == SGValue::INT ) {
|
|
result = "int";
|
|
} else if ( type == SGValue::FLOAT ) {
|
|
result = "float";
|
|
} else if ( type == SGValue::DOUBLE ) {
|
|
result = "double";
|
|
} else if ( type == SGValue::STRING ) {
|
|
result = "string";
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
|
|
bool FGProps::process_command( const char *cmd ) {
|
|
SGIOChannel *io = get_io_channel();
|
|
|
|
cout << "processing command = " << cmd;
|
|
string_list tokens;
|
|
tokens.clear();
|
|
|
|
istrstream in(cmd);
|
|
|
|
while ( !in.eof() ) {
|
|
string token;
|
|
in >> token;
|
|
tokens.push_back( token );
|
|
}
|
|
|
|
string command = tokens[0];
|
|
|
|
SGPropertyNode * node = globals->get_props()->getNode(path);
|
|
|
|
if ( command == "ls" ) {
|
|
for (int i = 0; i < (int)node->nChildren(); i++) {
|
|
SGPropertyNode * child = node->getChild(i);
|
|
string name = child->getName();
|
|
string line = name;
|
|
if ( child->nChildren() > 0 ) {
|
|
line += "/\n";
|
|
} else {
|
|
string value = node->getStringValue ( name, "" );
|
|
line += " =\t'" + value + "'\t(";
|
|
line += getValueTypeString( node->getValue( name ) );
|
|
line += ")\n";
|
|
}
|
|
io->writestring( line.c_str() );
|
|
}
|
|
} else if ( command == "dump" ) {
|
|
strstream buf;
|
|
if ( tokens.size() <= 1 ) {
|
|
writeProperties ( buf, node);
|
|
io->writestring( buf.str() );
|
|
}
|
|
else {
|
|
SGPropertyNode *child = node->getNode(tokens[1]);
|
|
if ( child ) {
|
|
writeProperties ( buf, child );
|
|
io->writestring( buf.str() );
|
|
} else {
|
|
tokens[1] += " Not Found\n";
|
|
io->writestring( tokens[1].c_str() );
|
|
}
|
|
}
|
|
} else if ( command == "cd" ) {
|
|
// string tmp = "current path = " + node.getPath() + "\n";
|
|
// io->writestring( tmp.c_str() );
|
|
|
|
if ( tokens.size() <= 1 ) {
|
|
// do nothing
|
|
} else {
|
|
SGPropertyNode *child = node->getNode(tokens[1]);
|
|
if ( child ) {
|
|
node = child;
|
|
path = node->getPath();
|
|
} else {
|
|
tokens[1] += " Not Found\n";
|
|
io->writestring( tokens[1].c_str() );
|
|
}
|
|
}
|
|
} else if ( command == "pwd" ) {
|
|
string ttt = node->getPath();
|
|
if ( ttt == "" ) {
|
|
ttt = "/";
|
|
}
|
|
ttt += "\n";
|
|
io->writestring( ttt.c_str() );
|
|
} else if ( command == "get" || command == "show" ) {
|
|
if ( tokens.size() <= 1 ) {
|
|
// do nothing
|
|
} else {
|
|
string ttt = "debug = '" + tokens[1] + "'\n";
|
|
io->writestring( ttt.c_str() );
|
|
|
|
string value = node->getStringValue ( tokens[1], "" );
|
|
string tmp = tokens[1] + " = '" + value + "' (";
|
|
tmp += getValueTypeString( node->getValue( tokens[1] ) );
|
|
tmp += ")\n";
|
|
|
|
io->writestring( tmp.c_str() );
|
|
}
|
|
} else if ( command == "set" ) {
|
|
if ( tokens.size() <= 2 ) {
|
|
// do nothing
|
|
} else {
|
|
node->getValue( tokens[1], true )->setStringValue(tokens[2]);
|
|
|
|
// now fetch and write out the new value as confirmation
|
|
// of the change
|
|
string value = node->getStringValue ( tokens[1], "" );
|
|
string tmp = tokens[1] + " = '" + value + "' (";
|
|
tmp += getValueTypeString( node->getValue( tokens[1] ) );
|
|
tmp += ")\n";
|
|
|
|
io->writestring( tmp.c_str() );
|
|
}
|
|
} else if ( command == "quit" ) {
|
|
close();
|
|
} else {
|
|
io->writestring( "\n" );
|
|
io->writestring( "Valid commands are:\n" );
|
|
io->writestring( "\n" );
|
|
io->writestring( "help show help message\n" );
|
|
io->writestring( "ls list current directory\n" );
|
|
io->writestring( "dump dump current state (in xml)\n" );
|
|
io->writestring( "cd <dir> cd to a directory, '..' to move back\n" );
|
|
io->writestring( "pwd display your current path\n" );
|
|
io->writestring( "get <var> show the value of a parameter\n" );
|
|
io->writestring( "show <var> synonym for get\n" );
|
|
io->writestring( "set <var> <val> set <var> to a new <val>\n" );
|
|
io->writestring( "quit terminate connection\n" );
|
|
io->writestring( "\n" );
|
|
}
|
|
|
|
string prompt = node->getPath();
|
|
if ( prompt == "" ) {
|
|
prompt = "/";
|
|
}
|
|
prompt += "> ";
|
|
io->writestring( prompt.c_str() );
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// process work for this port
|
|
bool FGProps::process() {
|
|
SGIOChannel *io = get_io_channel();
|
|
|
|
// cout << "processing incoming props command" << endl;
|
|
|
|
if ( get_direction() == SG_IO_BI ) {
|
|
// cout << " (bi directional)" << endl;
|
|
while ( io->readline( buf, max_cmd_len ) > 0 ) {
|
|
FG_LOG( FG_IO, FG_ALERT, "Success reading data." );
|
|
process_command( buf );
|
|
}
|
|
} else {
|
|
FG_LOG( FG_IO, FG_ALERT,
|
|
"in or out direction not supported for FGProps." );
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
// close the channel
|
|
bool FGProps::close() {
|
|
SGIOChannel *io = get_io_channel();
|
|
|
|
set_enabled( false );
|
|
|
|
if ( ! io->close() ) {
|
|
return false;
|
|
}
|
|
|
|
cout << "successfully closed channel\n";
|
|
|
|
return true;
|
|
}
|