Simplify memory management with std::unique_ptr.

[oota-llvm.git] / lib / Support / ThreadLocal.cpp

diff --git a/lib/Support/ThreadLocal.cpp b/lib/Support/ThreadLocal.cpp
index 868b6ea566a901ff14503095b00396f9efbb722a..9da1603080a2ac50e5cdb051791121d403fba94c 100644 (file)
--- a/lib/Support/ThreadLocal.cpp
+++ b/lib/Support/ThreadLocal.cpp
@@ -12,6 +12,7 @@
 //===----------------------------------------------------------------------===//
 
 #include "llvm/Config/config.h"
+#include "llvm/Support/Compiler.h"
 #include "llvm/Support/ThreadLocal.h"
 
 //===----------------------------------------------------------------------===//
@@ -26,62 +27,18 @@ using namespace sys;
 ThreadLocalImpl::ThreadLocalImpl() : data() { }
 ThreadLocalImpl::~ThreadLocalImpl() { }
 void ThreadLocalImpl::setInstance(const void* d) {
-  typedef int SIZE_TOO_BIG[sizeof(d) <= sizeof(data) ? 1 : -1];
+  static_assert(sizeof(d) <= sizeof(data), "size too big");
   void **pd = reinterpret_cast<void**>(&data);
   *pd = const_cast<void*>(d);
 }
-const void* ThreadLocalImpl::getInstance() {
+void *ThreadLocalImpl::getInstance() {
   void **pd = reinterpret_cast<void**>(&data);
   return *pd;
 }
 void ThreadLocalImpl::removeInstance() {
-  setInstance(0);
+  setInstance(nullptr);
 }
 }
-#else
-
-#if defined(HAVE_PTHREAD_H) && defined(HAVE_PTHREAD_GETSPECIFIC)
-
-#include <cassert>
-#include <pthread.h>
-#include <stdlib.h>
-
-namespace llvm {
-using namespace sys;
-
-ThreadLocalImpl::ThreadLocalImpl() : data() {
-  typedef int SIZE_TOO_BIG[sizeof(pthread_key_t) <= sizeof(data) ? 1 : -1];
-  pthread_key_t* key = reinterpret_cast<pthread_key_t*>(&data);
-  int errorcode = pthread_key_create(key, NULL);
-  assert(errorcode == 0);
-  (void) errorcode;
-}
-
-ThreadLocalImpl::~ThreadLocalImpl() {
-  pthread_key_t* key = reinterpret_cast<pthread_key_t*>(&data);
-  int errorcode = pthread_key_delete(*key);
-  assert(errorcode == 0);
-  (void) errorcode;
-}
-
-void ThreadLocalImpl::setInstance(const void* d) {
-  pthread_key_t* key = reinterpret_cast<pthread_key_t*>(&data);
-  int errorcode = pthread_setspecific(*key, d);
-  assert(errorcode == 0);
-  (void) errorcode;
-}
-
-const void* ThreadLocalImpl::getInstance() {
-  pthread_key_t* key = reinterpret_cast<pthread_key_t*>(&data);
-  return pthread_getspecific(*key);
-}
-
-void ThreadLocalImpl::removeInstance() {
-  setInstance(0);
-}
-
-}
-
 #elif defined(LLVM_ON_UNIX)
 #include "Unix/ThreadLocal.inc"
 #elif defined( LLVM_ON_WIN32)
@@ -89,4 +46,3 @@ void ThreadLocalImpl::removeInstance() {
 #else
 #warning Neither LLVM_ON_UNIX nor LLVM_ON_WIN32 set in Support/ThreadLocal.cpp
 #endif
-#endif