SetLowestThreadPriority in util

2 files changed, 16 insertions, 0 deletions

diff --git a/util/system/thread.cpp b/util/system/thread.cpp
index aa2a4fc9dd..e9c3da3d11 100644
--- a/util/system/thread.cpp
+++ b/util/system/thread.cpp
@@ -43,6 +43,21 @@ bool SetHighestThreadPriority() {
 #endif
 }
 
+bool SetLowestThreadPriority() {
+#ifdef _win_
+    return SetThreadPriority(GetCurrentThread(), THREAD_PRIORITY_LOWEST);
+#else
+    struct sched_param sch;
+    memset(&sch, 0, sizeof(sch));
+    sch.sched_priority = 0;
+    #ifdef _darwin_
+    return pthread_setschedparam(pthread_self(), SCHED_RR, &sch) == 0;
+    #else
+    return pthread_setschedparam(pthread_self(), SCHED_IDLE, &sch) == 0;
+    #endif
+#endif
+}
+
 namespace {
     using TParams = TThread::TParams;
     using TId = TThread::TId;
diff --git a/util/system/thread.h b/util/system/thread.h
index a6e8abdb5b..830c98a5c3 100644
--- a/util/system/thread.h
+++ b/util/system/thread.h
@@ -11,6 +11,7 @@
 #include "progname.h"
 
 bool SetHighestThreadPriority();
+bool SetLowestThreadPriority();
 
 class TThread {
     template <typename Callable>