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-rw-r--r--host/lib/utils/log.cpp33
1 files changed, 30 insertions, 3 deletions
diff --git a/host/lib/utils/log.cpp b/host/lib/utils/log.cpp
index 061173d6b..0a2861cbd 100644
--- a/host/lib/utils/log.cpp
+++ b/host/lib/utils/log.cpp
@@ -22,6 +22,19 @@
#include <boost/thread/mutex.hpp>
#include <boost/date_time/posix_time/posix_time.hpp>
#ifdef BOOST_MSVC
+//whoops! https://svn.boost.org/trac/boost/ticket/5287
+//enjoy this useless dummy class instead
+namespace boost{ namespace interprocess{
+ struct file_lock{
+ file_lock(const char * = NULL){}
+ void lock(void){}
+ void unlock(void){}
+ };
+}} //namespace
+#else
+#include <boost/interprocess/sync/file_lock.hpp>
+#endif
+#ifdef BOOST_MSVC
#define USE_GET_TEMP_PATH
#include <Windows.h> //GetTempPath
#endif
@@ -32,6 +45,7 @@
namespace fs = boost::filesystem;
namespace pt = boost::posix_time;
+namespace ip = boost::interprocess;
/***********************************************************************
* Helper function to get the system's temporary path
@@ -82,6 +96,7 @@ public:
uhd_logger_stream_resource_class(void) : _null_stream(&null_streambuf()){
const std::string log_path = (get_temp_path() / "uhd.log").string();
_file_stream.open(log_path.c_str(), std::fstream::out | std::fstream::app);
+ _file_lock = ip::file_lock(log_path.c_str());
//set the default log level
_log_level = uhd::_log::regularly;
@@ -107,8 +122,14 @@ public:
}
void aquire(bool lock){
- if (lock) _mutex.lock();
- else _mutex.unlock();
+ if (lock){
+ _mutex.lock();
+ _file_lock.lock();
+ }
+ else{
+ _file_lock.unlock();
+ _mutex.unlock();
+ }
}
void set_verbosity(uhd::_log::verbosity_t verbosity){
@@ -130,9 +151,15 @@ private:
if_lls_equal(very_rarely);
}
+ //available stream objects
std::ofstream _file_stream;
std::ostream _null_stream;
- boost::mutex _mutex;
+
+ //synchronization mechanisms
+ boost::mutex _mutex; //process-level
+ ip::file_lock _file_lock; //system-level
+
+ //log-level settings
uhd::_log::verbosity_t _verbosity;
uhd::_log::verbosity_t _log_level;
};