Add delay on trylock on session fail, before trying again.

1 files changed, 14 insertions, 2 deletions

diff --git a/server/src/session.cc b/server/src/session.cc
index 477fb19..ea4d11c 100644
--- a/server/src/session.cc
+++ b/server/src/session.cc
@@ -55,6 +55,8 @@ Session::Session(Environment *e,
   patientid = pid;
   templ = t;
   
+  mutex.name = "session-" + sid;
+
   DEBUG(session, "[%p] new Session(sessionid: '%s', patientid: '%s',"
         " template: '%s')\n", this, sid.c_str(), pid.c_str(), t.c_str());
 
@@ -312,6 +314,7 @@ void Sessions::store()
   Session *session = NULL;
   std::string sessionid;
   do {
+    bool waitcont = false;
     session = NULL;
     {
       MutexAutolock lock(mutex);
@@ -319,10 +322,19 @@ void Sessions::store()
       if(head != sessions.end()) {
         session = head->second;
         sessionid = head->first;
-        if(session->trylock()) sessions.erase(sessionid);
-        else continue;
+        if(session->trylock()) {
+          sessions.erase(sessionid);
+        } else {
+          waitcont = true;
+        }
       }
     }
+
+    if(waitcont) {
+      usleep(200000); // sleep 200ms
+      continue;
+    }
+
     if(session != NULL) {
       SessionSerialiser ser(env, Conf::session_path);
       ser.save(session);