diff options
Diffstat (limited to 'source/Host/windows/ThisThread.cpp')
-rw-r--r-- | source/Host/windows/ThisThread.cpp | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/source/Host/windows/ThisThread.cpp b/source/Host/windows/ThisThread.cpp new file mode 100644 index 000000000000..bcd5b8d1c1d0 --- /dev/null +++ b/source/Host/windows/ThisThread.cpp @@ -0,0 +1,66 @@ +//===-- ThisThread.cpp ------------------------------------------*- C++ -*-===// +// +// The LLVM Compiler Infrastructure +// +// This file is distributed under the University of Illinois Open Source +// License. See LICENSE.TXT for details. +// +//===----------------------------------------------------------------------===// + +#include "lldb/Core/Error.h" + +#include "lldb/Host/windows/windows.h" +#include "lldb/Host/ThisThread.h" + +#include "llvm/ADT/STLExtras.h" +#include "llvm/ADT/SmallVector.h" + +using namespace lldb; +using namespace lldb_private; + +#if defined(_MSC_VER) && !defined(__clang__) + +namespace +{ +static const DWORD MS_VC_EXCEPTION = 0x406D1388; + +#pragma pack(push, 8) +struct THREADNAME_INFO +{ + DWORD dwType; // Must be 0x1000. + LPCSTR szName; // Pointer to thread name + DWORD dwThreadId; // Thread ID (-1 == current thread) + DWORD dwFlags; // Reserved. Do not use. +}; +#pragma pack(pop) +} + +#endif + +void +ThisThread::SetName(llvm::StringRef name) +{ +// Other compilers don't yet support SEH, so we can only set the thread if compiling with MSVC. +// TODO(zturner): Once clang-cl supports SEH, relax this conditional. +#if defined(_MSC_VER) && !defined(__clang__) + THREADNAME_INFO info; + info.dwType = 0x1000; + info.szName = name.data(); + info.dwThreadId = ::GetCurrentThreadId(); + info.dwFlags = 0; + + __try { + ::RaiseException(MS_VC_EXCEPTION, 0, sizeof(info) / sizeof(ULONG_PTR), (ULONG_PTR *)&info); + } + __except(EXCEPTION_EXECUTE_HANDLER) {} +#endif +} + +void +ThisThread::GetName(llvm::SmallVectorImpl<char> &name) +{ + // Getting the thread name is not supported on Windows. + // TODO(zturner): In SetName(), make a TLS entry that contains the thread's name, and in this function + // try to extract that TLS entry. + name.clear(); +} |