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7102541: RFE: os::set_native_thread_name() cleanups

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Implement os::set_native_thread_name() on windows, linux

Reviewed-by: sla, ctornqvi, simonis
This commit is contained in:
Thomas Stuefe 2014-10-13 22:11:39 +02:00 • committed by Staffan Larsen
parent c5dbe0cf46
commit 51866388d1
5 changed files with 40 additions and 4 deletions
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25
hotspot/src/os/windows/vm/os_windows.cpp
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@ -745,8 +745,29 @@ int os::active_processor_count() {
}
void os::set_native_thread_name(const char *name) {
// Not yet implemented.
return;
// See: http://msdn.microsoft.com/en-us/library/xcb2z8hs.aspx
//
// Note that unfortunately this only works if the process
// is already attached to a debugger; debugger must observe
// the exception below to show the correct name.
const DWORD MS_VC_EXCEPTION = 0x406D1388;
struct {
DWORD dwType; // must be 0x1000
LPCSTR szName; // pointer to name (in user addr space)
DWORD dwThreadID; // thread ID (-1=caller thread)
DWORD dwFlags; // reserved for future use, must be zero
} info;
info.dwType = 0x1000;
info.szName = name;
info.dwThreadID = -1;
info.dwFlags = 0;
__try {
RaiseException (MS_VC_EXCEPTION, 0, sizeof(info)/sizeof(DWORD), (const ULONG_PTR*)&info );
} __except(EXCEPTION_CONTINUE_EXECUTION) {}
}
bool os::distribute_processes(uint length, uint* distribution) {