X-Git-Url: http://git.tdb.fi/?a=blobdiff_plain;f=source%2Flibr2c2%2Flayout.cpp;h=72f083d57cc2da491dead13077ad495b716f5942;hb=399b48a7a80dafde49e7530ff8dfd2820232a73f;hp=0901382b91d0f140bb8ddf39010bf41228b33bfb;hpb=81ee4fbd16b472892b67b35ea85956423a2247ed;p=r2c2.git

diff --git a/source/libr2c2/layout.cpp b/source/libr2c2/layout.cpp
index 0901382..72f083d 100644
--- a/source/libr2c2/layout.cpp
+++ b/source/libr2c2/layout.cpp
@@ -1,5 +1,6 @@
 #include <algorithm>
 #include <msp/core/maputils.h>
+#include <msp/core/raii.h>
 #include <msp/core/refptr.h>
 #include <msp/datafile/parser.h>
 #include <msp/datafile/writer.h>
@@ -40,7 +41,8 @@ namespace R2C2 {
 Layout::Layout(Catalogue &c, Driver *d):
 	catalogue(c),
 	driver(d),
-	next_turnout_addr(0x800)
+	next_turnout_addr(0x800),
+	emitting_block_reserved(false)
 {
 	clock.set_rate(60);
 }
@@ -69,31 +71,69 @@ Driver &Layout::get_driver() const
 void Layout::add(Object &o)
 {
 	if(objects.insert(o))
-		signal_object_added.emit(o);
+	{
+		try
+		{
+			signal_object_added.emit(o);
+		}
+		catch(...)
+		{
+			objects.erase(o);
+			throw;
+		}
+	}
 }
 
 void Layout::add(Track &t)
 {
 	if(objects.insert(t))
 	{
-		// Blocks must be recreated first
-		create_blocks();
-		signal_object_added.emit(t);
+		try
+		{
+			// Blocks must be recreated first
+			create_blocks();
+			signal_object_added.emit(t);
+		}
+		catch(...)
+		{
+			objects.erase(t);
+			create_blocks();
+			throw;
+		}
 	}
 }
 
 void Layout::add(TrackChain &g)
 {
 	if(track_chains.insert(g))
-		signal_track_chain_added.emit(g);
+	{
+		try
+		{
+			signal_track_chain_added.emit(g);
+		}
+		catch(...)
+		{
+			track_chains.erase(g);
+			throw;
+		}
+	}
 }
 
 void Layout::add(Block &b)
 {
 	if(track_chains.insert(b))
 	{
-		b.signal_reserved.connect(sigc::bind<0>(signal_block_reserved, sigc::ref(b)));
-		signal_track_chain_added.emit(b);
+		sigc::connection conn = b.signal_reserved.connect(sigc::bind<0>(sigc::mem_fun(this, &Layout::block_reserved), sigc::ref(b)));
+		try
+		{
+			signal_track_chain_added.emit(b);
+		}
+		catch(...)
+		{
+			track_chains.erase(b);
+			conn.disconnect();
+			throw;
+		}
 	}
 }
 
@@ -508,6 +548,23 @@ void Layout::sensor_state_changed(Sensor &sensor, Sensor::State state)
 	}
 }
 
+void Layout::block_reserved(Block &block, Train *train)
+{
+	if(emitting_block_reserved)
+		block_reserve_queue.push_back(BlockReservation(block, train));
+	else
+	{
+		SetFlag setf(emitting_block_reserved);
+		signal_block_reserved.emit(block, train);
+		while(!block_reserve_queue.empty())
+		{
+			BlockReservation br = block_reserve_queue.front();
+			block_reserve_queue.pop_front();
+			signal_block_reserved.emit(br.block, br.train);
+		}
+	}
+}
+
 
 template<typename B>
 Layout::Storage<B>::~Storage()
@@ -562,6 +619,12 @@ void Layout::Storage<B>::del()
 }
 
 
+Layout::BlockReservation::BlockReservation(Block &b, Train *t):
+	block(b),
+	train(t)
+{ }
+
+
 Layout::Loader::Loader(Layout &l):
 	DataFile::ObjectLoader<Layout>(l)
 {