summaryrefslogtreecommitdiff
path: root/server/src/session.cc
diff options
context:
space:
mode:
Diffstat (limited to 'server/src/session.cc')
-rw-r--r--server/src/session.cc238
1 files changed, 238 insertions, 0 deletions
diff --git a/server/src/session.cc b/server/src/session.cc
new file mode 100644
index 0000000..803a515
--- /dev/null
+++ b/server/src/session.cc
@@ -0,0 +1,238 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set et sw=2 ts=2: */
+/***************************************************************************
+ * session.cc
+ *
+ * Tue Dec 15 13:36:49 CET 2009
+ * Copyright 2009 Bent Bisballe Nyeng
+ * deva@aasimon.org
+ ****************************************************************************/
+
+/*
+ * This file is part of Pracro.
+ *
+ * Pracro is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * Pracro is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with Pracro; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+#include "session.h"
+
+#include <stdlib.h>
+
+// for stat
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "journalwriter.h"
+#include "configuration.h"
+#include "connectionpool.h"
+#include "sessionserialiser.h"
+
+Session::Session(std::string sessionid)
+{
+ _id = sessionid;
+ _journal = NULL;
+}
+
+Session::~Session()
+{
+ if(_journal) delete _journal;
+}
+
+std::string Session::id()
+{
+ return _id;
+}
+
+void Session::lock()
+{
+ mutex.lock();
+}
+
+void Session::unlock()
+{
+ mutex.unlock();
+}
+
+void Session::commit()
+{
+ if(_journal != NULL) {
+ _journal->commit();
+ delete _journal;
+ _journal = NULL;
+ }
+}
+
+void Session::discard()
+{
+ if(_journal) {
+ delete _journal;
+ _journal = NULL;
+ }
+}
+
+JournalWriter *Session::journal()
+{
+ if(_journal == NULL) {
+ _journal =
+ new JournalWriter(Conf::journal_commit_addr, Conf::journal_commit_port);
+ }
+ return _journal;
+}
+
+Sessions::Sessions()
+{
+}
+
+static bool fexists(const std::string &f)
+{
+ bool ret;
+
+/*
+ struct stat sbuf;
+ int n = stat(f.c_str(), &sbuf);
+ if(n != -1) ret = true;
+ ret = errno != ENOENT;
+*/
+
+ FILE *fp = fopen(f.c_str(), "r");
+ ret = fp != NULL;
+ if(fp) fclose(fp);
+
+ return ret;
+}
+
+Session *Sessions::newSession()
+{
+ char sessionid[32];
+ std::string filename;
+ do {
+ snprintf(sessionid, sizeof(sessionid)-1, "%d", rand());
+ filename = getSessionFilename(Conf::session_path, sessionid);
+ } while(sessions.find(sessionid) != sessions.end() || fexists(filename));
+
+ Session *session = new Session(sessionid);
+ sessions[session->id()] = session;
+ return session;
+}
+
+Session *Sessions::session(std::string sessionid)
+{
+ if(sessions.find(sessionid) != sessions.end())
+ return sessions[sessionid];
+
+ std::string filename = getSessionFilename(Conf::session_path, sessionid);
+ if(fexists(filename)) {
+ Session *s = new Session(sessionid);
+ SessionSerialiser ser(Conf::session_path, s);
+ ser.load();
+ sessions[s->id()] = s;
+
+ fprintf(stderr, "s: %p\n",s);
+
+ return s;
+ }
+
+ return NULL;
+}
+
+Session *Sessions::takeSession(std::string sessionid)
+{
+ Session *s = NULL;
+ if(sessions.find(sessionid) != sessions.end()) {
+ s = sessions[sessionid];
+ }
+
+ if(s) {
+ sessions.erase(sessionid);
+ }
+
+ return s;
+}
+
+void Sessions::deleteSession(std::string sessionid)
+{
+ Session *s = takeSession(sessionid);
+ if(s) delete s;
+}
+
+size_t Sessions::size()
+{
+ return sessions.size();
+}
+
+void Sessions::store()
+{
+ std::map<std::string, Session*>::iterator i = sessions.begin();
+ while(i != sessions.end()) {
+ SessionSerialiser ser(Conf::session_path, i->second);
+ ser.save();
+ delete i->second;
+ sessions.erase(i);
+ i++;
+ }
+ sessions.clear();
+}
+
+SessionAutolock::SessionAutolock(Session &s)
+ : session(s)
+{
+ session.lock();
+}
+
+SessionAutolock::~SessionAutolock()
+{
+ session.unlock();
+}
+
+#ifdef TEST_SESSION
+//deps: configuration.cc journalwriter.cc journal_commit.cc mutex.cc debug.cc sessionserialiser.cc sessionparser.cc saxparser.cc
+//cflags: -I.. $(PTHREAD_CFLAGS) $(EXPAT_CFLAGS)
+//libs: $(PTHREAD_LIBS) $(EXPAT_LIBS)
+#include <test.h>
+
+TEST_BEGIN;
+Sessions sessions;
+
+Conf::session_path = "/tmp";
+
+srand(0); // force seed
+Session *s1 = sessions.newSession();
+srand(0); // force seed
+Session *s2 = sessions.newSession();
+
+TEST_NOTEQUAL(s1->id(), s2->id(), "Testing if IDs are unique.");
+
+TEST_EQUAL(sessions.size(), 2, "Testing if size match.");
+
+std::string sessionid = s1->id();
+SessionSerialiser ser(Conf::session_path, s1);
+ser.save();
+
+sessions.deleteSession(sessionid);
+TEST_EQUAL(sessions.size(), 1, "Testing if size match.");
+
+s1 = sessions.session(sessionid);
+TEST_NOTEQUAL(s1, NULL, "Did we reload the session from disk?");
+
+sessions.store();
+TEST_EQUAL(sessions.size(), 0, "Testing if size match.");
+
+s1 = sessions.session(sessionid);
+TEST_NOTEQUAL(s1, NULL, "Did we reload the session from disk?");
+
+TEST_END;
+
+#endif/*TEST_SESSION*/