diff options
Diffstat (limited to 'host/lib/usrp/usrp_e/usrp_e_iface.cpp')
| -rw-r--r-- | host/lib/usrp/usrp_e/usrp_e_iface.cpp | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/host/lib/usrp/usrp_e/usrp_e_iface.cpp b/host/lib/usrp/usrp_e/usrp_e_iface.cpp index 41737a716..1dbe383fa 100644 --- a/host/lib/usrp/usrp_e/usrp_e_iface.cpp +++ b/host/lib/usrp/usrp_e/usrp_e_iface.cpp @@ -20,6 +20,7 @@ #include <sys/ioctl.h> //ioctl #include <linux/usrp_e.h> //ioctl structures and constants #include <boost/format.hpp> +#include <boost/thread.hpp> //mutex #include <stdexcept> using namespace uhd; @@ -42,6 +43,8 @@ public: * IOCTL: provides the communication base for all other calls ******************************************************************/ void ioctl(int request, void *mem){ + boost::mutex::scoped_lock lock(_ctrl_mutex); + if (::ioctl(_node_fd, request, mem) < 0){ throw std::runtime_error(str( boost::format("ioctl failed with request %d") % request @@ -167,7 +170,9 @@ public: return data.data; } -private: int _node_fd; +private: + int _node_fd; + boost::mutex _ctrl_mutex; }; /*********************************************************************** |