From 00b2d18a8e5a9d52d8200d2afbce323f066dfebc Mon Sep 17 00:00:00 2001
From: Glenn Maynard <gmaynard@users.sourceforge.net>
Date: Fri, 17 Sep 2004 02:36:04 +0000
Subject: [PATCH] show thread names in the VC debugger

---
 stepmania/src/arch/Threads/Threads_Win32.cpp | 29 ++++++++++++++++++++
 1 file changed, 29 insertions(+)

diff --git a/stepmania/src/arch/Threads/Threads_Win32.cpp b/stepmania/src/arch/Threads/Threads_Win32.cpp
index 42b79eded9..1784c12ce3 100644
--- a/stepmania/src/arch/Threads/Threads_Win32.cpp
+++ b/stepmania/src/arch/Threads/Threads_Win32.cpp
@@ -57,10 +57,37 @@ int ThreadImpl_Win32::Wait()
 	return ret;
 }
 
+/* SetThreadName magic comes from VirtualDub. */
+#define MS_VC_EXCEPTION 0x406d1388
+
+typedef struct tagTHREADNAME_INFO
+{
+    DWORD dwType;        // must be 0x1000
+    LPCSTR szName;       // pointer to name (in same addr space)
+    DWORD dwThreadID;    // thread ID (-1 caller thread)
+    DWORD dwFlags;       // reserved for future use, most be zero
+} THREADNAME_INFO;
+
+static void SetThreadName( DWORD dwThreadID, LPCTSTR szThreadName )
+{
+    THREADNAME_INFO info;
+    info.dwType = 0x1000;
+    info.szName = szThreadName;
+    info.dwThreadID = dwThreadID;
+    info.dwFlags = 0;
+
+    __try {
+        RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(DWORD), (ULONG_PTR *)&info);
+    } __except (EXCEPTION_CONTINUE_EXECUTION) {
+    }
+}
+
 static DWORD WINAPI StartThread( LPVOID pData )
 {
 	ThreadImpl_Win32 *pThis = (ThreadImpl_Win32 *) pData;
 
+	SetThreadName( GetCurrentThreadId(), RageThread::GetCurThreadName() );
+
 	DWORD ret = (DWORD) pThis->m_pFunc( pThis->m_pData );
 
 	for( int i = 0; i < MAX_THREADS; ++i )
@@ -99,6 +126,8 @@ ThreadImpl *MakeThisThread()
 {
 	ThreadImpl_Win32 *thread = new ThreadImpl_Win32;
 
+	SetThreadName( GetCurrentThreadId(), RageThread::GetCurThreadName() );
+
 	const HANDLE CurProc = GetCurrentProcess();
 	int ret = DuplicateHandle( CurProc, GetCurrentThread(), CurProc, 
 		&thread->ThreadHandle, 0, false, DUPLICATE_SAME_ACCESS );