Moved session creation into DevInst objects

[pulseview.git] / pv / device / sessionfile.cpp

diff --git a/pv/device/sessionfile.cpp b/pv/device/sessionfile.cpp
new file mode 100644 (file)
index 0000000..ffdeb67
--- /dev/null
+++ b/pv/device/sessionfile.cpp
@@ -0,0 +1,75 @@
+/*
+ * This file is part of the PulseView project.
+ *
+ * Copyright (C) 2014 Joel Holdsworth <joel@airwebreathe.org.uk>
+ *
+ * This program 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.
+ *
+ * This program 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 this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
+ */
+
+#include "sessionfile.h"
+
+#include <libsigrok/libsigrok.h>
+
+namespace pv {
+namespace device {
+
+SessionFile::SessionFile(const std::string &path) :
+       File(path),
+       _sdi(NULL)
+{
+}
+
+sr_dev_inst* SessionFile::dev_inst() const
+{
+       return _sdi;
+}
+
+void SessionFile::use(SigSession *owner) throw(QString)
+{
+       assert(!_sdi);
+
+       if (sr_session_load(_path.c_str()) != SR_OK)
+               throw tr("Failed to open file.\n");
+
+       GSList *devlist = NULL;
+       sr_session_dev_list(&devlist);
+
+       if (!devlist || !devlist->data) {
+               if (devlist)
+                       g_slist_free(devlist);
+               throw tr("Failed to start session.");
+       }
+
+       _sdi = (sr_dev_inst*)devlist->data;
+       g_slist_free(devlist);
+
+       File::use(owner);
+}
+
+void SessionFile::release()
+{
+       if (!_owner)
+               return;
+
+       assert(_sdi);
+       File::release();
+       sr_dev_close(_sdi);
+       sr_dev_clear(_sdi->driver);
+       sr_session_destroy();
+       _sdi = NULL;
+}
+
+} // device
+} // pv