Merge pull request #24789 from bluebear94/mf/set-thread-name

Set thread name on Linux for debugging

src/framework/global/runtime.cpp

@@ -22,11 +22,32 @@
 
 #include "runtime.h"
 
+#include "log.h"
+
+#if defined(Q_OS_LINUX) || defined(Q_OS_MACOS)
+#include <pthread.h>
+#endif
+#if defined(Q_OS_FREEBSD)
+#include <pthread_np.h> // Needed for pthread_setname_np on FreeBSD
+#endif
+
 static thread_local std::string s_threadName;
 
 void muse::runtime::setThreadName(const std::string& name)
 {
     s_threadName = name;
+#if defined(Q_OS_LINUX) || defined(Q_OS_FREEBSD)
+    // Set thread name through pthreads to aid debuggers that display such names.
+    // Thread names are limited to 16 bytes on Linux, including the
+    // terminating null.
+    DO_ASSERT(name.length() <= 15);
+    std::string truncated_name = name.length() > 15 ? name.substr(0, 15) : name;
+    if (pthread_setname_np(pthread_self(), truncated_name.c_str()) > 0) {
+        LOGW() << "Couldn't set thread name through pthreads";
+    }
+#elif defined(Q_OS_MACOS)
+    pthread_setname_np(name.c_str());
+#endif
 }
 
 const std::string& muse::runtime::threadName()