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Working on a new protocal that allows you to remotely browse, examine, and

change items in the property manager.
This commit is contained in:
curt 2000-10-04 20:51:12 +00:00
parent df31c5893e
commit 63bbe7de75
2 changed files with 163 additions and 6 deletions

View file

@ -25,6 +25,9 @@
#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>
@ -42,6 +45,8 @@ 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" );
@ -61,8 +66,37 @@ bool FGProps::open() {
}
// 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 ) {
cout << "processing command = " << cmd << endl;
SGIOChannel *io = get_io_channel();
cout << "processing command = " << cmd;
string_list tokens;
tokens.clear();
@ -76,10 +110,128 @@ bool FGProps::process_command( const char *cmd ) {
string command = tokens[0];
if ( command == "ls" ) {
SGPropertyNode node( path, &current_properties );
if ( node.getPath() == "" ) {
node.setPath( "/" );
}
if ( command == "ls" ) {
for (int i = 0; i < (int)node.size(); i++) {
SGPropertyNode child = node.getChild(i);
string name = child.getName();
string line = name;
if ( child.size() > 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 == "cd" ) {
// string tmp = "current path = " + node.getPath() + "\n";
// io->writestring( tmp.c_str() );
if ( tokens.size() <= 1 ) {
// do nothing
} else if ( tokens[1] == "." ) {
// do nothing
} else if ( tokens[1] == ".." ) {
// go back one level
string current = node.getPath();
int pos = current.rfind("/");
// cout << "path = " << current << endl;
// cout << "new path = " << current.substr(0, pos) << endl;d
string tmp = current.substr(0, pos);
node.setPath( tmp );
path = tmp;
} else {
// decend to specified child
string tmp = node.getPath();
tmp += "/" + tokens[1];
node.setPath( tmp );
path = tmp;
}
} else if ( 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 {
SGValue *v = node.getValue( tokens[1] );
if ( v != NULL ) {
SGValue::Type type = v->getType();
if ( type == SGValue::UNKNOWN ) {
v->setUnknownValue( tokens[2] );
} else if ( type == SGValue::BOOL ) {
if ( tokens[2] == "true" ) {
v->setBoolValue( true );
} else if ( tokens[2] == "false" ) {
v->setBoolValue( false );
} else {
v->setBoolValue( atoi( tokens[2].c_str() ) );
}
} else if ( type == SGValue::INT ) {
v->setIntValue( atoi( tokens[2].c_str() ) );
} else if ( type == SGValue::FLOAT ) {
v->setFloatValue( atof( tokens[2].c_str() ) );
} else if ( type == SGValue::DOUBLE ) {
v->setDoubleValue( atof( tokens[2].c_str() ) );
} else if ( type == SGValue::STRING ) {
v->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 {
string tmp = tokens[1] + " is unknown.\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( "cd <dir> cd to a directory, '..' to move back\n" );
io->writestring( "show <var> show the value of a parameter\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;
}
@ -88,11 +240,11 @@ bool FGProps::process_command( const char *cmd ) {
bool FGProps::process() {
SGIOChannel *io = get_io_channel();
cout << "processing incoming props command" << endl;
// cout << "processing incoming props command" << endl;
if ( get_direction() == SG_IO_BI ) {
cout << " (bi directional)" << endl;
while ( io->read( buf, max_cmd_len ) > 0 ) {
// cout << " (bi directional)" << endl;
while ( io->readline( buf, max_cmd_len ) > 0 ) {
FG_LOG( FG_IO, FG_ALERT, "Success reading data." );
process_command( buf );
}
@ -115,5 +267,7 @@ bool FGProps::close() {
return false;
}
cout << "successfully closed channel\n";
return true;
}

View file

@ -42,6 +42,9 @@ class FGProps : public FGProtocol {
char buf[max_cmd_len];
int length;
// tree view of property list
string path;
public:
FGProps();