1 files changed, 0 insertions, 157 deletions
diff --git a/lib/System/RWMutex.cpp b/lib/System/RWMutex.cpp
deleted file mode 100644
index deb0470..0000000
--- a/lib/System/RWMutex.cpp
+++ /dev/null
@@ -1,157 +0,0 @@
-//===- RWMutex.cpp - Reader/Writer Mutual Exclusion Lock --------*- C++ -*-===//
-//
-//                     The LLVM Compiler Infrastructure
-//
-// This file is distributed under the University of Illinois Open Source
-// License. See LICENSE.TXT for details.
-//
-//===----------------------------------------------------------------------===//
-//
-// This file implements the llvm::sys::RWMutex class.
-//
-//===----------------------------------------------------------------------===//
-
-#include "llvm/Config/config.h"
-#include "llvm/System/RWMutex.h"
-#include <cstring>
-
-//===----------------------------------------------------------------------===//
-//=== WARNING: Implementation here must contain only TRULY operating system
-//===          independent code.
-//===----------------------------------------------------------------------===//
-
-#if !defined(ENABLE_THREADS) || ENABLE_THREADS == 0
-// Define all methods as no-ops if threading is explicitly disabled
-namespace llvm {
-using namespace sys;
-RWMutexImpl::RWMutexImpl() { }
-RWMutexImpl::~RWMutexImpl() { }
-bool RWMutexImpl::reader_acquire() { return true; }
-bool RWMutexImpl::reader_release() { return true; }
-bool RWMutexImpl::writer_acquire() { return true; }
-bool RWMutexImpl::writer_release() { return true; }
-}
-#else
-
-#if defined(HAVE_PTHREAD_H) && defined(HAVE_PTHREAD_RWLOCK_INIT)
-
-#include <cassert>
-#include <pthread.h>
-#include <stdlib.h>
-
-namespace llvm {
-using namespace sys;
-
-
-// This variable is useful for situations where the pthread library has been
-// compiled with weak linkage for its interface symbols. This allows the
-// threading support to be turned off by simply not linking against -lpthread.
-// In that situation, the value of pthread_mutex_init will be 0 and
-// consequently pthread_enabled will be false. In such situations, all the
-// pthread operations become no-ops and the functions all return false. If
-// pthread_rwlock_init does have an address, then rwlock support is enabled.
-// Note: all LLVM tools will link against -lpthread if its available since it
-//       is configured into the LIBS variable.
-// Note: this line of code generates a warning if pthread_rwlock_init is not
-//       declared with weak linkage. It's safe to ignore the warning.
-static const bool pthread_enabled = true;
-
-// Construct a RWMutex using pthread calls
-RWMutexImpl::RWMutexImpl()
-  : data_(0)
-{
-  if (pthread_enabled)
-  {
-    // Declare the pthread_rwlock data structures
-    pthread_rwlock_t* rwlock =
-      static_cast<pthread_rwlock_t*>(malloc(sizeof(pthread_rwlock_t)));
-
-#ifdef __APPLE__
-    // Workaround a bug/mis-feature in Darwin's pthread_rwlock_init.
-    bzero(rwlock, sizeof(pthread_rwlock_t));
-#endif
-
-    // Initialize the rwlock
-    int errorcode = pthread_rwlock_init(rwlock, NULL);
-    (void)errorcode;
-    assert(errorcode == 0);
-
-    // Assign the data member
-    data_ = rwlock;
-  }
-}
-
-// Destruct a RWMutex
-RWMutexImpl::~RWMutexImpl()
-{
-  if (pthread_enabled)
-  {
-    pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_);
-    assert(rwlock != 0);
-    pthread_rwlock_destroy(rwlock);
-    free(rwlock);
-  }
-}
-
-bool
-RWMutexImpl::reader_acquire()
-{
-  if (pthread_enabled)
-  {
-    pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_);
-    assert(rwlock != 0);
-
-    int errorcode = pthread_rwlock_rdlock(rwlock);
-    return errorcode == 0;
-  } else return false;
-}
-
-bool
-RWMutexImpl::reader_release()
-{
-  if (pthread_enabled)
-  {
-    pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_);
-    assert(rwlock != 0);
-
-    int errorcode = pthread_rwlock_unlock(rwlock);
-    return errorcode == 0;
-  } else return false;
-}
-
-bool
-RWMutexImpl::writer_acquire()
-{
-  if (pthread_enabled)
-  {
-    pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_);
-    assert(rwlock != 0);
-
-    int errorcode = pthread_rwlock_wrlock(rwlock);
-    return errorcode == 0;
-  } else return false;
-}
-
-bool
-RWMutexImpl::writer_release()
-{
-  if (pthread_enabled)
-  {
-    pthread_rwlock_t* rwlock = static_cast<pthread_rwlock_t*>(data_);
-    assert(rwlock != 0);
-
-    int errorcode = pthread_rwlock_unlock(rwlock);
-    return errorcode == 0;
-  } else return false;
-}
-
-}
-
-#elif defined(LLVM_ON_UNIX)
-#include "Unix/RWMutex.inc"
-#elif defined( LLVM_ON_WIN32)
-#include "Win32/RWMutex.inc"
-#else
-#warning Neither LLVM_ON_UNIX nor LLVM_ON_WIN32 was set in System/Mutex.cpp
-#endif
-#endif