Protected all concurrent accesses to sources and destinations of instructions.

1 files changed, 8 insertions, 0 deletions

diff --git a/src/gtkext/graph/nodes/flow.c b/src/gtkext/graph/nodes/flow.c
index 343f916..e19cacb 100644
--- a/src/gtkext/graph/nodes/flow.c
+++ b/src/gtkext/graph/nodes/flow.c
@@ -827,6 +827,8 @@ static void g_flow_node_setup_entry_slots(GFlowNode *node)
     size_t used;                            /* Nombre de liens utilisés    */
 
     g_flow_block_get_boundary(node->block, &first, NULL);
+
+    g_arch_instruction_rlock_src(first);
     icount = g_arch_instruction_get_sources(first, &instrs, &types);
 
     usable = 0;
@@ -892,6 +894,8 @@ static void g_flow_node_setup_entry_slots(GFlowNode *node)
 
     assert(used == usable);
 
+    g_arch_instruction_runlock_src(first);
+
 }
 
 
@@ -918,6 +922,8 @@ static void g_flow_node_setup_exit_slots(GFlowNode *node)
     size_t used;                            /* Nombre de liens utilisés    */
 
     g_flow_block_get_boundary(node->block, NULL, &last);
+
+    g_arch_instruction_rlock_dest(last);
     icount = g_arch_instruction_get_destinations(last, &instrs, &types, NULL);
 
     usable = 0;
@@ -983,6 +989,8 @@ static void g_flow_node_setup_exit_slots(GFlowNode *node)
 
     assert(used == usable);
 
+    g_arch_instruction_runlock_dest(last);
+
 }