Initial import of svn+ssh:://svn.icir.org/bro/trunk/bro as of r7088

src/Frame.cc

@@ -0,0 +1,101 @@
+// $Id: Frame.cc 6219 2008-10-01 05:39:07Z vern $
+//
+// See the file "COPYING" in the main distribution directory for copyright.
+
+#include "config.h"
+
+#include "Frame.h"
+#include "Stmt.h"
+#include "Func.h"
+#include "Trigger.h"
+
+vector<Frame*> g_frame_stack;
+
+Frame::Frame(int arg_size, const BroFunc* func, const val_list* fn_args)
+	{
+	size = arg_size;
+	frame = new Val*[size];
+	function = func;
+	func_args = fn_args;
+
+	next_stmt = 0;
+	break_before_next_stmt = false;
+	break_on_return = false;
+
+	trigger = 0;
+	call = 0;
+	delayed = false;
+
+	Clear();
+	}
+
+Frame::~Frame()
+	{
+	Unref(trigger);
+	Release();
+	}
+
+void Frame::Release()
+	{
+	for ( int i = 0; i < size; ++i )
+		Unref(frame[i]);
+
+	delete [] frame;
+	}
+
+void Frame::Describe(ODesc* d) const
+	{
+	if ( ! d->IsBinary() )
+		d->AddSP("frame");
+
+	if ( ! d->IsReadable() )
+		{
+		d->Add(size);
+
+		for ( int i = 0; i < size; ++i )
+			 {
+			 d->Add(frame[i] != 0);
+			 d->SP();
+			 }
+		}
+
+	for ( int i = 0; i < size; ++i )
+		if ( frame[i] )
+			frame[i]->Describe(d);
+		else if ( d->IsReadable() )
+			d->Add("<nil>");
+	}
+
+void Frame::Clear()
+	{
+	for ( int i = 0; i < size; ++i )
+		frame[i] = 0;
+	}
+
+Frame* Frame::Clone()
+	{
+	Frame* f = new Frame(size, function, func_args);
+
+	for ( int i = 0; i < size; ++i )
+		f->frame[i] = frame[i] ? frame[i]->Clone() : 0;
+
+	if ( trigger )
+		Ref(trigger);
+	f->trigger = trigger;
+	f->call = call;
+
+	return f;
+	}
+
+void Frame::SetTrigger(Trigger* arg_trigger)
+	{
+	if ( arg_trigger )
+		Ref(arg_trigger);
+	trigger = arg_trigger;
+	}
+
+void Frame::ClearTrigger()
+	{
+	Unref(trigger);
+	trigger = 0;
+	}