JSString*
jsd_ValToStringInStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe,
jsval val)
{
JSBool valid;
JSString* retval;
JSExceptionState* exceptionState;
JSContext* cx;
JSD_LOCK_THREADSTATES(jsdc);
valid = jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe);
JSD_UNLOCK_THREADSTATES(jsdc);
if( ! valid )
return NULL;
cx = jsdthreadstate->context;
JS_ASSERT(cx);
exceptionState = JS_SaveExceptionState(cx);
retval = JS_ValueToString(cx, val);
JS_RestoreExceptionState(cx, exceptionState);
return retval;
}
JSString*
jsd_GetIdForStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSString *rv = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
{
JSFunction *fun = JS_GetFrameFunction (jsdthreadstate->context,
jsdframe->fp);
if( fun )
{
rv = JS_GetFunctionId (fun);
/*
* For compatibility we return "anonymous", not an empty string
* here.
*/
if( !rv )
rv = JS_GetAnonymousString(jsdc->jsrt);
}
}
JSD_UNLOCK_THREADSTATES(jsdc);
return rv;
}
static JSContext*
_getContextForThreadState(JSDContext* jsdc, JSDThreadState* jsdthreadstate)
{
JSBool valid;
JSD_LOCK_THREADSTATES(jsdc);
valid = jsd_IsValidThreadState(jsdc, jsdthreadstate);
JSD_UNLOCK_THREADSTATES(jsdc);
if( valid )
return jsdthreadstate->context;
return NULL;
}
JSContext *
jsd_GetJSContext (JSDContext* jsdc, JSDThreadState* jsdthreadstate)
{
JSContext* cx = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidThreadState(jsdc, jsdthreadstate) )
cx = jsdthreadstate->context;
JSD_UNLOCK_THREADSTATES(jsdc);
return cx;
}
JSDStackFrameInfo*
jsd_GetStackFrame(JSDContext* jsdc, JSDThreadState* jsdthreadstate)
{
JSDStackFrameInfo* jsdframe = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidThreadState(jsdc, jsdthreadstate) )
jsdframe = (JSDStackFrameInfo*) JS_LIST_HEAD(&jsdthreadstate->stack);
JSD_UNLOCK_THREADSTATES(jsdc);
return jsdframe;
}
uintN
jsd_GetCountOfStackFrames(JSDContext* jsdc, JSDThreadState* jsdthreadstate)
{
uintN count = 0;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidThreadState(jsdc, jsdthreadstate) )
count = jsdthreadstate->stackDepth;
JSD_UNLOCK_THREADSTATES(jsdc);
return count;
}
jsuword
jsd_GetPCForStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
jsuword pc = 0;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
pc = jsdframe->pc;
JSD_UNLOCK_THREADSTATES(jsdc);
return pc;
}
JSBool
jsd_IsStackFrameConstructing(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSBool rv = JS_TRUE;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
{
rv = JS_IsConstructorFrame(jsdthreadstate->context, jsdframe->fp);
}
JSD_UNLOCK_THREADSTATES(jsdc);
return rv;
}
JSDScript*
jsd_GetScriptForStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSDScript* jsdscript = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
jsdscript = jsdframe->jsdscript;
JSD_UNLOCK_THREADSTATES(jsdc);
return jsdscript;
}
JSDStackFrameInfo*
jsd_GetCallingStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSDStackFrameInfo* nextjsdframe = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
if( JS_LIST_HEAD(&jsdframe->links) != &jsdframe->jsdthreadstate->stack )
nextjsdframe = (JSDStackFrameInfo*) JS_LIST_HEAD(&jsdframe->links);
JSD_UNLOCK_THREADSTATES(jsdc);
return nextjsdframe;
}
JSDValue*
jsd_GetThisForStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSObject* obj;
JSDValue* jsdval = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
{
obj = JS_GetFrameThis(jsdthreadstate->context, jsdframe->fp);
if(obj)
jsdval = JSD_NewValue(jsdc, OBJECT_TO_JSVAL(obj));
}
JSD_UNLOCK_THREADSTATES(jsdc);
return jsdval;
}
const char*
jsd_GetNameForStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
const char *rv = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
{
JSFunction *fun = JS_GetFrameFunction (jsdthreadstate->context,
jsdframe->fp);
if (fun)
rv = JS_GetFunctionName (fun);
}
JSD_UNLOCK_THREADSTATES(jsdc);
return rv;
}
void
jsd_DestroyThreadState(JSDContext* jsdc, JSDThreadState* jsdthreadstate)
{
JSDStackFrameInfo* jsdframe;
JSCList* list;
JS_ASSERT(jsdthreadstate);
JS_ASSERT(JSD_CURRENT_THREAD() == jsdthreadstate->thread);
JSD_LOCK_THREADSTATES(jsdc);
JS_REMOVE_LINK(&jsdthreadstate->links);
JSD_UNLOCK_THREADSTATES(jsdc);
list = &jsdthreadstate->stack;
while( (JSDStackFrameInfo*)list != (jsdframe = (JSDStackFrameInfo*)list->next) )
{
JS_REMOVE_LINK(&jsdframe->links);
_destroyFrame(jsdframe);
}
free(jsdthreadstate);
}
JSBool
jsd_IsStackFrameNative(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSBool rv;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
{
rv = JS_IsNativeFrame(jsdthreadstate->context, jsdframe->fp);
}
else
{
rv = JS_FALSE;
}
JSD_UNLOCK_THREADSTATES(jsdc);
return rv;
}
JSDValue*
jsd_GetThisForStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe)
{
JSObject* obj;
JSDValue* jsdval = NULL;
JSD_LOCK_THREADSTATES(jsdc);
if( jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe) )
{
JSBool ok;
jsval thisval;
JS_BeginRequest(jsdthreadstate->context);
ok = JS_GetFrameThis(jsdthreadstate->context, jsdframe->fp, &thisval);
JS_EndRequest(jsdthreadstate->context);
if(ok)
jsdval = JSD_NewValue(jsdc, thisval);
}
JSD_UNLOCK_THREADSTATES(jsdc);
return jsdval;
}
JSBool
jsd_EvaluateScriptInStackFrame(JSDContext* jsdc,
JSDThreadState* jsdthreadstate,
JSDStackFrameInfo* jsdframe,
const char *bytes, uintN length,
const char *filename, uintN lineno,
JSBool eatExceptions, jsval *rval)
{
JSBool retval;
JSBool valid;
JSExceptionState* exceptionState = NULL;
JSContext *cx;
JS_ASSERT(JSD_CURRENT_THREAD() == jsdthreadstate->thread);
JSD_LOCK_THREADSTATES(jsdc);
valid = jsd_IsValidFrameInThreadState(jsdc, jsdthreadstate, jsdframe);
JSD_UNLOCK_THREADSTATES(jsdc);
if (!valid)
return JS_FALSE;
cx = jsdthreadstate->context;
JS_ASSERT(cx);
if (eatExceptions)
exceptionState = JS_SaveExceptionState(cx);
JS_ClearPendingException(cx);
jsd_StartingEvalUsingFilename(jsdc, filename);
retval = JS_EvaluateInStackFrame(cx, jsdframe->fp, bytes, length,
filename, lineno, rval);
jsd_FinishedEvalUsingFilename(jsdc, filename);
if (eatExceptions)
JS_RestoreExceptionState(cx, exceptionState);
return retval;
}
JSDThreadState*
jsd_NewThreadState(JSDContext* jsdc, JSContext *cx )
{
JSDThreadState* jsdthreadstate;
JSStackFrame * iter = NULL;
JSStackFrame * fp;
jsdthreadstate = (JSDThreadState*)calloc(1, sizeof(JSDThreadState));
if( ! jsdthreadstate )
return NULL;
jsdthreadstate->context = cx;
jsdthreadstate->thread = JSD_CURRENT_THREAD();
JS_INIT_CLIST(&jsdthreadstate->stack);
jsdthreadstate->stackDepth = 0;
JS_BeginRequest(jsdthreadstate->context);
while( NULL != (fp = JS_FrameIterator(cx, &iter)) )
{
JSScript* script = JS_GetFrameScript(cx, fp);
jsuword pc = (jsuword) JS_GetFramePC(cx, fp);
/*
* don't construct a JSDStackFrame for dummy frames (those without a
* |this| object, or native frames, if JSD_INCLUDE_NATIVE_FRAMES
* isn't set.
*/
if (JS_GetFrameThis(cx, fp) &&
((jsdc->flags & JSD_INCLUDE_NATIVE_FRAMES) ||
!JS_IsNativeFrame(cx, fp)))
{
JSDStackFrameInfo *frame;
frame = _addNewFrame( jsdc, jsdthreadstate, script, pc, fp );
if ((jsdthreadstate->stackDepth == 0 && !frame) ||
(jsdthreadstate->stackDepth == 1 && frame &&
frame->jsdscript && !JSD_IS_DEBUG_ENABLED(jsdc, frame->jsdscript)))
{
/*
* if we failed to create the first frame, or the top frame
* is not enabled for debugging, fail the entire thread state.
*/
JS_INIT_CLIST(&jsdthreadstate->links);
JS_EndRequest(jsdthreadstate->context);
jsd_DestroyThreadState(jsdc, jsdthreadstate);
return NULL;
}
}
}
JS_EndRequest(jsdthreadstate->context);
if (jsdthreadstate->stackDepth == 0)
{
free(jsdthreadstate);
return NULL;
}
JSD_LOCK_THREADSTATES(jsdc);
JS_APPEND_LINK(&jsdthreadstate->links, &jsdc->threadsStates);
JSD_UNLOCK_THREADSTATES(jsdc);
return jsdthreadstate;
}
