diff --git a/src/ProcessSemaphore_C4droid.cpp b/src/ProcessSemaphore_C4droid.cpp
index e2e859a..1db1ed0 100644
--- a/src/ProcessSemaphore_C4droid.cpp
+++ b/src/ProcessSemaphore_C4droid.cpp
@@ -8,6 +8,9 @@
 #include <string.h>
 #include <unistd.h>
 #include <stdio.h>
+#include <error.h>
+#include <stdlib.h>
+
 #include <vector>
 using namespace std;
 
@@ -81,12 +84,12 @@ ProcessSemaphore::ProcessSemaphore(int key, int action, int default_value) : _p(
 
         if(action==1)
         {
-            _p->fd=open(_p->buff,O_RDWR|O_CREAT|O_TRUNC|O_EXCL);
+            _p->fd=open(_p->buff,O_RDWR|O_CREAT|O_EXCL,0666);
             _p->owner=true;
         }
         else
         {
-            _p->fd=open(_p->buff,O_RDWR);
+            _p->fd=open(_p->buff,O_RDWR,0666);
         }
 
         if(_p->fd>=0) /// Opened.
@@ -103,6 +106,10 @@ ProcessSemaphore::ProcessSemaphore(int key, int action, int default_value) : _p(
                 flock(_p->fd,LOCK_UN);
             }
         }
+        else
+        {
+            perror("Failed to open file. ");
+        }
 
         if(_p->status!=0&&_p->status!=2) /// Clean up
         {
@@ -152,7 +159,7 @@ int ProcessSemaphore::p()
         typedef void (*fnvi)(int);
         _global_process_semaphore_value=0;
         fnvi old=signal(SIGUSR1,_global_process_semaphore_handler);
-        //*/
+        */
 
         flock(_p->fd,LOCK_UN);
 
@@ -162,6 +169,7 @@ int ProcessSemaphore::p()
         while(1)
         {
             flock(_p->fd,LOCK_EX);
+            x=impl::LockInfo::getFrom(_p->fd);
             if(x.current_value>0) /// Someone has released resource!
             {
                 x.current_value=x.current_value-1;