#endif
#include <string.h>
+#include <errno.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <sstream>
#include <simgear/nasal/nasal.h>
+#include <simgear/nasal/iolib.h>
#include <simgear/props/props.hxx>
#include <simgear/math/sg_random.h>
#include <simgear/misc/sg_path.hxx>
#include <simgear/misc/sg_dir.hxx>
+#include <simgear/misc/SimpleMarkdown.hxx>
#include <simgear/structure/commands.hxx>
#include <simgear/math/sg_geodesy.hxx>
#include <simgear/structure/event_mgr.hxx>
#include <simgear/nasal/cppbind/Ghost.hxx>
#include <simgear/nasal/cppbind/NasalHash.hxx>
+#include "NasalSGPath.hxx"
#include "NasalSys.hxx"
#include "NasalSys_private.hxx"
+#include "NasalAircraft.hxx"
#include "NasalModelData.hxx"
#include "NasalPositioned.hxx"
#include "NasalCanvas.hxx"
void invoke()
{
+ if( _singleShot )
+ // Callback may restart the timer, so update status before callback is
+ // called (Prevent warnings of deleting not existing tasks from the
+ // event manager).
+ _isRunning = false;
+
naRef *args = NULL;
_sys->callMethod(_func, _self, 0, args, naNil() /* locals */);
- if (_singleShot) {
- _isRunning = false;
- }
}
void setSingleShot(bool aSingleShot)
return buf;
}
-FGNasalSys::FGNasalSys()
+FGNasalSys::FGNasalSys() :
+ _inited(false)
{
nasalSys = this;
_context = 0;
_globals = naNil();
_string = naNil();
+ _wrappedNodeFunc = naNil();
_log = new simgear::BufferedLogCallback(SG_NASAL, SG_INFO);
_log->truncateAt(255);
return callMethod(code, naNil(), argc, args, locals);
}
+naRef FGNasalSys::callWithContext(naContext ctx, naRef code, int argc, naRef* args, naRef locals)
+{
+ return callMethodWithContext(ctx, code, naNil(), argc, args, locals);
+}
+
// Does a naCall() in a new context. Wrapped here to make lock
// tracking easier. Extension functions are called with the lock, but
// we have to release it before making a new naCall(). So rather than
return naCallMethod(code, self, argc, args, locals);
}
+naRef FGNasalSys::callMethodWithContext(naContext ctx, naRef code, naRef self, int argc, naRef* args, naRef locals)
+{
+ return naCallMethodCtx(ctx, code, self, argc, args, locals);
+}
+
FGNasalSys::~FGNasalSys()
{
+ if (_inited) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "Nasal was not shutdown");
+ }
nasalSys = 0;
}
bool FGNasalSys::parseAndRun(const char* sourceCode)
{
- naRef code = parse("FGNasalSys::parseAndRun()", sourceCode,
+ naContext ctx = naNewContext();
+ naRef code = parse(ctx, "FGNasalSys::parseAndRun()", sourceCode,
strlen(sourceCode));
- if(naIsNil(code))
+ if(naIsNil(code)) {
+ naFreeContext(ctx);
return false;
- call(code, 0, 0, naNil());
+ }
+ callWithContext(ctx, code, 0, 0, naNil());
+ naFreeContext(ctx);
return true;
}
// This allows a Nasal object to hold onto a property path and use it
// like a node object, e.g. setprop(ObjRoot, "size-parsecs", 2.02). This
// is the utility function that walks the property tree.
-// Future enhancement: support integer arguments to specify array
-// elements.
-static SGPropertyNode* findnode(naContext c, naRef* vec, int len)
+static SGPropertyNode* findnode(naContext c, naRef* vec, int len, bool create=false)
{
SGPropertyNode* p = globals->get_props();
try {
for(int i=0; i<len; i++) {
naRef a = vec[i];
- if(!naIsString(a)) return 0;
- p = p->getNode(naStr_data(a));
+ if(!naIsString(a)) {
+ naRuntimeError(c, "bad argument to setprop/getprop path: expected a string");
+ }
+ naRef b = i < len-1 ? naNumValue(vec[i+1]) : naNil();
+ if (!naIsNil(b)) {
+ p = p->getNode(naStr_data(a), (int)b.num, create);
+ i++;
+ } else {
+ p = p->getNode(naStr_data(a), create);
+ }
if(p == 0) return 0;
}
} catch (const string& err) {
naRuntimeError(c, (char *)err.c_str());
- return 0;
}
return p;
}
static naRef f_getprop(naContext c, naRef me, int argc, naRef* args)
{
using namespace simgear;
- const SGPropertyNode* p = findnode(c, args, argc);
+ if (argc < 1) {
+ naRuntimeError(c, "getprop() expects at least 1 argument");
+ }
+ const SGPropertyNode* p = findnode(c, args, argc, false);
if(!p) return naNil();
switch(p->getType()) {
// final argument.
static naRef f_setprop(naContext c, naRef me, int argc, naRef* args)
{
-#define BUFLEN 1024
- char buf[BUFLEN + 1];
- buf[BUFLEN] = 0;
- char* p = buf;
- int buflen = BUFLEN;
- if(argc < 2) naRuntimeError(c, "setprop() expects at least 2 arguments");
- for(int i=0; i<argc-1; i++) {
- naRef s = naStringValue(c, args[i]);
- if(naIsNil(s)) return naNil();
- strncpy(p, naStr_data(s), buflen);
- p += naStr_len(s);
- buflen = BUFLEN - (p - buf);
- if(i < (argc-2) && buflen > 0) {
- *p++ = '/';
- buflen--;
- }
+ if (argc < 2) {
+ naRuntimeError(c, "setprop() expects at least 2 arguments");
}
+ naRef val = args[argc - 1];
+ SGPropertyNode* p = findnode(c, args, argc-1, true);
- SGPropertyNode* props = globals->get_props();
- naRef val = args[argc-1];
bool result = false;
try {
- if(naIsString(val)) result = props->setStringValue(buf, naStr_data(val));
+ if(naIsString(val)) result = p->setStringValue(naStr_data(val));
else {
- naRef n = naNumValue(val);
- if(naIsNil(n))
+ if(!naIsNum(val))
naRuntimeError(c, "setprop() value is not string or number");
- if (SGMisc<double>::isNaN(n.num)) {
+ if (SGMisc<double>::isNaN(val.num)) {
naRuntimeError(c, "setprop() passed a NaN");
}
- result = props->setDoubleValue(buf, n.num);
+ result = p->setDoubleValue(val.num);
}
} catch (const string& err) {
naRuntimeError(c, (char *)err.c_str());
}
return naNum(result);
-#undef BUFLEN
}
// print() extension function. Concatenates and prints its arguments
naRef props = argc > 1 ? args[1] : naNil();
if(!naIsString(cmd) || (!naIsNil(props) && !naIsGhost(props)))
naRuntimeError(c, "bad arguments to fgcommand()");
- SGPropertyNode_ptr tmp, *node;
+ SGPropertyNode_ptr node;
if(!naIsNil(props))
- node = (SGPropertyNode_ptr*)naGhost_ptr(props);
- else {
- tmp = new SGPropertyNode();
- node = &tmp;
- }
- return naNum(globals->get_commands()->execute(naStr_data(cmd), *node));
+ node = static_cast<SGPropertyNode*>(naGhost_ptr(props));
+ else
+ node = new SGPropertyNode;
+
+ return naNum(globals->get_commands()->execute(naStr_data(cmd), node));
}
// settimer(func, dt, simtime) extension function. Falls through to
}
TimerObj* timerObj = new TimerObj(nasalSys, func, self, args[0].num);
- return NasalTimerObj::create(c, timerObj);
+ return nasal::to_nasal(c, timerObj);
}
// setlistener(func, property, bool) extension function. Falls through to
}
// Sets up a property interpolation. The first argument is either a
-// ghost (SGPropertyNode_ptr*) or a string (global property path) to
+// ghost (SGPropertyNode*) or a string (global property path) to
// interpolate. The second argument is a vector of pairs of
// value/delta numbers.
static naRef f_interpolate(naContext c, naRef me, int argc, naRef* args)
SGPropertyNode* node;
naRef prop = argc > 0 ? args[0] : naNil();
if(naIsString(prop)) node = fgGetNode(naStr_data(prop), true);
- else if(naIsGhost(prop)) node = *(SGPropertyNode_ptr*)naGhost_ptr(prop);
+ else if(naIsGhost(prop)) node = static_cast<SGPropertyNode*>(naGhost_ptr(prop));
else return naNil();
naRef curve = argc > 1 ? args[1] : naNil();
return naNil();
}
+static naRef f_open(naContext c, naRef me, int argc, naRef* args)
+{
+ FILE* f;
+ naRef file = argc > 0 ? naStringValue(c, args[0]) : naNil();
+ naRef mode = argc > 1 ? naStringValue(c, args[1]) : naNil();
+ if(!naStr_data(file)) naRuntimeError(c, "bad argument to open()");
+ const char* modestr = naStr_data(mode) ? naStr_data(mode) : "rb";
+ std::string filename = fgValidatePath(naStr_data(file),
+ strcmp(modestr, "rb") && strcmp(modestr, "r"));
+ if(filename.empty()) {
+ SG_LOG(SG_NASAL, SG_ALERT, "open(): reading/writing '" <<
+ naStr_data(file) << "' denied (unauthorized directory - authorization"
+ " no longer follows symlinks; to authorize reading additional "
+ "directories, add them to --fg-aircraft)");
+ naRuntimeError(c, "open(): access denied (unauthorized directory)");
+ return naNil();
+ }
+ f = fopen(filename.c_str(), modestr);
+ if(!f) naRuntimeError(c, strerror(errno));
+ return naIOGhost(c, f);
+}
+
// Parse XML file.
// parsexml(<path> [, <start-tag> [, <end-tag> [, <data> [, <pi>]]]]);
//
if(!(naIsNil(args[i]) || naIsFunc(args[i])))
naRuntimeError(c, "parsexml(): callback argument not a function");
- const char* file = fgValidatePath(naStr_data(args[0]), false);
- if(!file) {
- naRuntimeError(c, "parsexml(): reading '%s' denied "
- "(unauthorized access)", naStr_data(args[0]));
+ std::string file = fgValidatePath(naStr_data(args[0]), false);
+ if(file.empty()) {
+ SG_LOG(SG_NASAL, SG_ALERT, "parsexml(): reading '" <<
+ naStr_data(args[0]) << "' denied (unauthorized directory - authorization"
+ " no longer follows symlinks; to authorize reading additional "
+ "directories, add them to --fg-aircraft)");
+ naRuntimeError(c, "parsexml(): access denied (unauthorized directory)");
return naNil();
}
- std::ifstream input(file);
+ std::ifstream input(file.c_str());
NasalXMLVisitor visitor(c, argc, args);
try {
readXML(input, visitor);
} catch (const sg_exception& e) {
naRuntimeError(c, "parsexml(): file '%s' %s",
- file, e.getFormattedMessage().c_str());
+ file.c_str(), e.getFormattedMessage().c_str());
return naNil();
}
- return naStr_fromdata(naNewString(c), const_cast<char*>(file), strlen(file));
+ return naStr_fromdata(naNewString(c), file.c_str(), file.length());
+}
+
+/**
+ * Parse very simple and small subset of markdown
+ *
+ * parse_markdown(src)
+ */
+static naRef f_parse_markdown(naContext c, naRef me, int argc, naRef* args)
+{
+ nasal::CallContext ctx(c, me, argc, args);
+ return ctx.to_nasal(
+ simgear::SimpleMarkdown::parse(ctx.requireArg<std::string>(0))
+ );
+}
+
+/**
+ * Create md5 hash from given string
+ *
+ * md5(str)
+ */
+static naRef f_md5(naContext c, naRef me, int argc, naRef* args)
+{
+ if( argc != 1 || !naIsString(args[0]) )
+ naRuntimeError(c, "md5(): wrong type or number of arguments");
+
+ return nasal::to_nasal(
+ c,
+ simgear::strutils::md5(naStr_data(args[0]), naStr_len(args[0]))
+ );
}
// Return UNIX epoch time in seconds.
{ "resolvepath", f_resolveDataPath },
{ "finddata", f_findDataDir },
{ "parsexml", f_parsexml },
+ { "parse_markdown", f_parse_markdown },
+ { "md5", f_md5 },
{ "systime", f_systime },
{ 0, 0 }
};
void FGNasalSys::init()
{
+ if (_inited) {
+ SG_LOG(SG_GENERAL, SG_ALERT, "duplicate init of Nasal");
+ }
int i;
_context = naNewContext();
for(i=0; funcs[i].name; i++)
hashset(_globals, funcs[i].name,
naNewFunc(_context, naNewCCode(_context, funcs[i].func)));
-
+ nasal::Hash io_module = nasal::Hash(_globals, _context).get<nasal::Hash>("io");
+ io_module.set("open", f_open);
+
// And our SGPropertyNode wrapper
hashset(_globals, "props", genPropsModule());
initNasalPositioned(_globals, _context);
initNasalPositioned_cppbind(_globals, _context);
+ initNasalAircraft(_globals, _context);
NasalClipboard::init(this);
initNasalCanvas(_globals, _context);
initNasalCondition(_globals, _context);
initNasalHTTP(_globals, _context);
+ initNasalSGPath(_globals, _context);
- if (!NasalTimerObj::isInit()) {
- NasalTimerObj::init("Timer")
- .method("start", &TimerObj::start)
- .method("stop", &TimerObj::stop)
- .method("restart", &TimerObj::restart)
- .member("singleShot", &TimerObj::isSingleShot, &TimerObj::setSingleShot)
- .member("isRunning", &TimerObj::isRunning);
- }
+ NasalTimerObj::init("Timer")
+ .method("start", &TimerObj::start)
+ .method("stop", &TimerObj::stop)
+ .method("restart", &TimerObj::restart)
+ .member("singleShot", &TimerObj::isSingleShot, &TimerObj::setSingleShot)
+ .member("isRunning", &TimerObj::isRunning);
+
+ // Set allowed paths for Nasal I/O
+ fgInitAllowedPaths();
// Now load the various source files in the Nasal directory
simgear::Dir nasalDir(SGPath(globals->get_fg_root(), "Nasal"));
const char *s = "nasal-dir-initialized";
SGPropertyNode *signal = fgGetNode("/sim/signals", true);
signal->setBoolValue(s, true);
- signal->removeChildren(s, false);
+ signal->removeChildren(s);
// Pull scripts out of the property tree, too
loadPropertyScripts();
// now Nasal modules are loaded, we can do some delayed work
postinitNasalPositioned(_globals, _context);
postinitNasalGUI(_globals, _context);
+
+ _inited = true;
}
void FGNasalSys::shutdown()
{
+ if (!_inited) {
+ return;
+ }
+
shutdownNasalPositioned();
map<int, FGNasalListener *>::iterator it, end = _listener.end();
}
_commands.clear();
+ std::vector<FGNasalModuleListener*>::iterator k = _moduleListeners.begin();
+ for(; k!= _moduleListeners.end(); ++k)
+ delete *k;
+ _moduleListeners.clear();
+
naClearSaved();
_string = naNil(); // will be freed by _context
_globals = naNil();
naGC();
-
+ _inited = false;
}
naRef FGNasalSys::wrappedPropsNode(SGPropertyNode* aProps)
{
- static naRef wrapNodeFunc = naNil();
- if (naIsNil(wrapNodeFunc)) {
+ if (naIsNil(_wrappedNodeFunc)) {
nasal::Hash props = getGlobals().get<nasal::Hash>("props");
- wrapNodeFunc = props.get("wrapNode");
+ _wrappedNodeFunc = props.get("wrapNode");
}
naRef args[1];
args[0] = propNodeGhost(aProps);
- return naCall(_context, wrapNodeFunc, 1, args, naNil(), naNil());
+ naContext ctx = naNewContext();
+ naRef wrapped = naCallMethodCtx(ctx, _wrappedNodeFunc, naNil(), 1, args, naNil());
+ naFreeContext(ctx);
+ return wrapped;
}
void FGNasalSys::update(double)
_unloadList.pop()->unload();
}
+ // Destroy all queued ghosts
+ nasal::ghostProcessDestroyList();
+
// The global context is a legacy thing. We use dynamically
// created contexts for naCall() now, so that we can call them
// recursively. But there are still spots that want to use it for
if (enable)
{
FGNasalModuleListener* listener = new FGNasalModuleListener(n);
+ _moduleListeners.push_back(listener);
enable->addChangeListener(listener, false);
}
}
const SGPropertyNode* cmdarg,
int argc, naRef* args)
{
- naRef code = parse(fileName, src, len);
- if(naIsNil(code))
+ naContext ctx = naNewContext();
+ naRef code = parse(ctx, fileName, src, len);
+ if(naIsNil(code)) {
+ naFreeContext(ctx);
return false;
+ }
+
// See if we already have a module hash to use. This allows the
// user to, for example, add functions to the built-in math
// module. Make a new one if necessary.
naRef locals;
- naRef modname = naNewString(_context);
+ naRef modname = naNewString(ctx);
naStr_fromdata(modname, (char*)moduleName, strlen(moduleName));
if(!naHash_get(_globals, modname, &locals))
- locals = naNewHash(_context);
+ locals = naNewHash(ctx);
_cmdArg = (SGPropertyNode*)cmdarg;
- call(code, argc, args, locals);
+ callWithContext(ctx, code, argc, args, locals);
hashset(_globals, moduleName, locals);
+
+ naFreeContext(ctx);
return true;
}
void FGNasalSys::deleteModule(const char* moduleName)
{
- naRef modname = naNewString(_context);
+ if (!_inited) {
+ // can occur on shutdown due to us being shutdown first, but other
+ // subsystems having Nasal objects.
+ return;
+ }
+
+ naContext ctx = naNewContext();
+ naRef modname = naNewString(ctx);
naStr_fromdata(modname, (char*)moduleName, strlen(moduleName));
naHash_delete(_globals, modname);
+ naFreeContext(ctx);
}
-naRef FGNasalSys::parse(const char* filename, const char* buf, int len)
+naRef FGNasalSys::parse(naContext ctx, const char* filename, const char* buf, int len)
{
int errLine = -1;
- naRef srcfile = naNewString(_context);
+ naRef srcfile = naNewString(ctx);
naStr_fromdata(srcfile, (char*)filename, strlen(filename));
- naRef code = naParseCode(_context, srcfile, 1, (char*)buf, len, &errLine);
+ naRef code = naParseCode(ctx, srcfile, 1, (char*)buf, len, &errLine);
if(naIsNil(code)) {
SG_LOG(SG_NASAL, SG_ALERT,
- "Nasal parse error: " << naGetError(_context) <<
+ "Nasal parse error: " << naGetError(ctx) <<
" in "<< filename <<", line " << errLine);
return naNil();
}
// Bind to the global namespace before returning
- return naBindFunction(_context, code, _globals);
+ return naBindFunction(ctx, code, _globals);
}
bool FGNasalSys::handleCommand( const char* moduleName,
const char* src,
const SGPropertyNode* arg )
{
- naRef code = parse(fileName, src, strlen(src));
- if(naIsNil(code)) return false;
+ naContext ctx = naNewContext();
+ naRef code = parse(ctx, fileName, src, strlen(src));
+ if(naIsNil(code)) {
+ naFreeContext(ctx);
+ return false;
+ }
// Commands can be run "in" a module. Make sure that module
// exists, and set it up as the local variables hash for the
// command.
naRef locals = naNil();
if(moduleName[0]) {
- naRef modname = naNewString(_context);
+ naRef modname = naNewString(ctx);
naStr_fromdata(modname, (char*)moduleName, strlen(moduleName));
if(!naHash_get(_globals, modname, &locals)) {
- locals = naNewHash(_context);
+ locals = naNewHash(ctx);
naHash_set(_globals, modname, locals);
}
}
// code doesn't need it.
_cmdArg = (SGPropertyNode*)arg;
- call(code, 0, 0, locals);
+ callWithContext(ctx, code, 0, 0, locals);
+ naFreeContext(ctx);
return true;
}
const char* moduleName = arg->getStringValue("module");
return handleCommand( moduleName,
- arg ? arg->getPath(true).c_str() : moduleName,
+ arg->getPath(true).c_str(),
src,
arg );
}
naGCRelease(key);
}
+
+//------------------------------------------------------------------------------
void FGNasalSys::NasalTimer::timerExpired()
{
nasal->handleTimer(this);
// setlistener(<property>, <func> [, <initial=0> [, <persistent=1>]])
// Attaches a callback function to a property (specified as a global
-// property path string or a SGPropertyNode_ptr* ghost). If the third,
+// property path string or a SGPropertyNode* ghost). If the third,
// optional argument (default=0) is set to 1, then the function is also
// called initially. If the fourth, optional argument is set to 0, then the
// function is only called when the property node value actually changes.
SGPropertyNode_ptr node;
naRef prop = argc > 0 ? args[0] : naNil();
if(naIsString(prop)) node = fgGetNode(naStr_data(prop), true);
- else if(naIsGhost(prop)) node = *(SGPropertyNode_ptr*)naGhost_ptr(prop);
+ else if(naIsGhost(prop)) node = static_cast<SGPropertyNode*>(naGhost_ptr(prop));
else {
naRuntimeError(c, "setlistener() with invalid property argument");
return naNil();
projects / flightgear.git / blobdiff