1.1 --- a/src/os/windows/vm/os_windows.cpp Fri May 17 07:44:31 2019 +0100
1.2 +++ b/src/os/windows/vm/os_windows.cpp Mon Oct 13 22:11:39 2014 +0200
1.3 @@ -744,8 +744,29 @@
1.4 }
1.5
1.6 void os::set_native_thread_name(const char *name) {
1.7 - // Not yet implemented.
1.8 - return;
1.9 +
1.10 + // See: http://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx
1.11 + //
1.12 + // Note that unfortunately this only works if the process
1.13 + // is already attached to a debugger; debugger must observe
1.14 + // the exception below to show the correct name.
1.15 +
1.16 + const DWORD MS_VC_EXCEPTION = 0x406D1388;
1.17 + struct {
1.18 + DWORD dwType; // must be 0x1000
1.19 + LPCSTR szName; // pointer to name (in user addr space)
1.20 + DWORD dwThreadID; // thread ID (-1=caller thread)
1.21 + DWORD dwFlags; // reserved for future use, must be zero
1.22 + } info;
1.23 +
1.24 + info.dwType = 0x1000;
1.25 + info.szName = name;
1.26 + info.dwThreadID = -1;
1.27 + info.dwFlags = 0;
1.28 +
1.29 + __try {
1.30 + RaiseException (MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(DWORD), (const ULONG_PTR*)&info );
1.31 + } __except(EXCEPTION_CONTINUE_EXECUTION) {}
1.32 }
1.33
1.34 bool os::distribute_processes(uint length, uint* distribution) {
