thread_win32.c: set thread name

* thread_win32.c (native_set_another_thread_name): set thread name
  by SetThreadDescription.

* win32/win32.c (rb_w32_set_thread_description): dynamically try
  SetThreadDescription.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@59660 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 5 insertions, 0 deletions

diff --git a/thread_win32.c b/thread_win32.c
index d5a7ff4581..5b42310679 100644
--- a/thread_win32.c
+++ b/thread_win32.c
@@ -669,6 +669,10 @@ ubf_handle(void *ptr)
     }
 }
 
+int rb_w32_set_thread_description(HANDLE th, const WCHAR *name);
+int rb_w32_set_thread_description_str(HANDLE th, VALUE name);
+#define native_set_another_thread_name rb_w32_set_thread_description_str
+
 static struct {
     HANDLE id;
     HANDLE lock;
@@ -679,6 +683,7 @@ static unsigned long __stdcall
 timer_thread_func(void *dummy)
 {
     thread_debug("timer_thread\n");
+    rb_w32_set_thread_description(GetCurrentThread(), L"ruby-timer-thread");
     while (WaitForSingleObject(timer_thread.lock, TIME_QUANTUM_USEC/1000) ==
 	   WAIT_TIMEOUT) {
 	timer_thread_function(dummy);