X-Git-Url: http://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fdevice%2Fdevinst.cpp;fp=pv%2Fdevice%2Fdevinst.cpp;h=adbf8968595e80cc66441dcd48985fc18d25df5b;hp=5fe2951756e4b602fca4da0fa4b379f3cfc19ef0;hb=996b7c9da9b5cb56413e829217e1e7d7d7d520da;hpb=85843b14c48affe67820ec8c9e357cd26e0ed943

diff --git a/pv/device/devinst.cpp b/pv/device/devinst.cpp
index 5fe29517..adbf8968 100644
--- a/pv/device/devinst.cpp
+++ b/pv/device/devinst.cpp
@@ -26,11 +26,14 @@
 
 #include "devinst.h"
 
+#include <pv/sigsession.h>
+
 namespace pv {
 namespace device {
 
 DevInst::DevInst(sr_dev_inst *sdi) :
-	_sdi(sdi)
+	_sdi(sdi),
+	_owner(NULL)
 {
 	assert(_sdi);
 }
@@ -40,6 +43,28 @@ sr_dev_inst* DevInst::dev_inst() const
 	return _sdi;
 }
 
+void DevInst::use(SigSession *owner)
+{
+	assert(owner);
+	assert(!_owner);
+	_owner = owner;
+	sr_dev_open(_sdi);
+}
+
+void DevInst::release()
+{
+	if (_owner) {
+		_owner->release_device(this);
+		_owner = NULL;
+		sr_dev_close(_sdi);
+	}
+}
+
+SigSession* DevInst::owner() const
+{
+	return _owner;
+}
+
 GVariant* DevInst::get_config(const sr_probe_group *group, int key)
 {
 	GVariant *data = NULL;