From 4e56fe682e6ad34c161aa40c06af4e3e0088962e Mon Sep 17 00:00:00 2001
From: Samo Penic <samo.penic@gmail.com>
Date: Fri, 22 Nov 2013 19:29:14 +0000
Subject: [PATCH] Testing of paralel algorithm with mutexes and tainting. Still no success. It seems tainting and untainting does not works as suspected

---
 src/vertex.c |   15 +++++++--------
 1 files changed, 7 insertions(+), 8 deletions(-)

diff --git a/src/vertex.c b/src/vertex.c
index 1993856..9fc96be 100644
--- a/src/vertex.c
+++ b/src/vertex.c
@@ -315,32 +315,31 @@
 
 
 ts_bool vertex_taint(ts_vertex *vtx, ts_uint level){
-	if(level==0){
-		vtx->locked++;
+	ts_uint i;
+	vtx->locked++; //lock current vertex
+	if(level==0){ //if we reach last in recursion exit
 		return TS_SUCCESS;	
 	}	
-	ts_uint i;
-	for(i=0; i<vtx->neigh_no; i++){
+	for(i=0; i<vtx->neigh_no; i++){ //else recursive call self with decreased level
 		vertex_taint(vtx->neigh[i], level-1);
 	}
-		vtx->locked++;
 	return TS_SUCCESS;
 }
 
 ts_bool vertex_untaint(ts_vertex *vtx, ts_uint level){
-	if(level==0){
 		vtx->locked--;
+	if(level==0){
 		return TS_SUCCESS;	
 	}	
 	ts_uint i;
 	for(i=0; i<vtx->neigh_no; i++){
 		vertex_untaint(vtx->neigh[i], level-1);
 	}
-		vtx->locked--;
 	return TS_SUCCESS;
 }
 
 inline ts_bool vertex_tainted(ts_vertex *vtx, ts_uint level, ts_uint amount){
 	if(vtx->locked>amount) return 1;
-	else return 0;
+	
+	return 0;
 }

--
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