67 lines
1.8 KiB
C++
67 lines
1.8 KiB
C++
//===-- ThisThread.cpp ------------------------------------------*- C++ -*-===//
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//
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// The LLVM Compiler Infrastructure
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//
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// This file is distributed under the University of Illinois Open Source
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// License. See LICENSE.TXT for details.
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//
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//===----------------------------------------------------------------------===//
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#include "lldb/Core/Error.h"
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#include "lldb/Host/windows/windows.h"
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#include "lldb/Host/ThisThread.h"
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#include "llvm/ADT/STLExtras.h"
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#include "llvm/ADT/SmallVector.h"
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using namespace lldb;
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using namespace lldb_private;
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#if defined(_MSC_VER) && !defined(__clang__)
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namespace
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{
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static const DWORD MS_VC_EXCEPTION = 0x406D1388;
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#pragma pack(push, 8)
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struct THREADNAME_INFO
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{
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DWORD dwType; // Must be 0x1000.
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LPCSTR szName; // Pointer to thread name
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DWORD dwThreadId; // Thread ID (-1 == current thread)
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DWORD dwFlags; // Reserved. Do not use.
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};
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#pragma pack(pop)
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}
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#endif
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void
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ThisThread::SetName(llvm::StringRef name)
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{
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// Other compilers don't yet support SEH, so we can only set the thread if compiling with MSVC.
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// TODO(zturner): Once clang-cl supports SEH, relax this conditional.
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#if defined(_MSC_VER) && !defined(__clang__)
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THREADNAME_INFO info;
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info.dwType = 0x1000;
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info.szName = name.data();
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info.dwThreadId = ::GetCurrentThreadId();
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info.dwFlags = 0;
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__try {
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::RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR *)&info);
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}
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__except(EXCEPTION_EXECUTE_HANDLER) {}
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#endif
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}
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void
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ThisThread::GetName(llvm::SmallVectorImpl<char> &name)
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{
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// Getting the thread name is not supported on Windows.
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// TODO(zturner): In SetName(), make a TLS entry that contains the thread's name, and in this function
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// try to extract that TLS entry.
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name.clear();
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}
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