diff options
| -rw-r--r-- | lib/System/Win32/RWMutex.inc | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/lib/System/Win32/RWMutex.inc b/lib/System/Win32/RWMutex.inc index 5360b41b0e..7fc4b33b1e 100644 --- a/lib/System/Win32/RWMutex.inc +++ b/lib/System/Win32/RWMutex.inc @@ -18,31 +18,39 @@ #include "Win32.h" -// FIXME: THIS IS NOT THREAD-SAFE!! -// Windows does not have reader-writer locks pre-Vista. If you want to have -// thread-safe LLVM on Windows, for now at least, you need to use a pthreads -// replacement library. +// FIXME: Windows does not have reader-writer locks pre-Vista. If you want +// real reader-writer locks, you a pthreads implementation for Windows. namespace llvm { using namespace sys; -RWMutex::RWMutex() { } +RWMutex::RWMutex() { + data_ = calloc(1, sizeof(CRITICAL_SECTION)); + InitializeCriticalSection(static_cast<LPCRITICAL_SECTION>(data_)); +} -RWMutex::~RWMutex() { } +RWMutex::~RWMutex() { + DeleteCriticalSection(static_cast<LPCRITICAL_SECTION>(data_)); + free(data_); +} bool RWMutex::reader_acquire() { + EnterCriticalSection(static_cast<LPCRITICAL_SECTION>(data_)); return true; } bool RWMutex::reader_release() { + LeaveCriticalSection(static_cast<LPCRITICAL_SECTION>(data_)); return true; } bool RWMutex::writer_acquire() { + EnterCriticalSection(static_cast<LPCRITICAL_SECTION>(data_)); return true; } bool RWMutex::writer_release() { + LeaveCriticalSection(static_cast<LPCRITICAL_SECTION>(data_)); return true; } |