//===----------------------------------------------------------------------===//
#include "llvm/Config/config.h"
+#include "llvm/Support/Compiler.h"
#include "llvm/Support/ThreadLocal.h"
//===----------------------------------------------------------------------===//
//=== independent code.
//===----------------------------------------------------------------------===//
-#if !defined(ENABLE_THREADS) || ENABLE_THREADS == 0
+#if !defined(LLVM_ENABLE_THREADS) || LLVM_ENABLE_THREADS == 0
// Define all methods as no-ops if threading is explicitly disabled
namespace llvm {
using namespace sys;
-ThreadLocalImpl::ThreadLocalImpl() { }
+ThreadLocalImpl::ThreadLocalImpl() : data() { }
ThreadLocalImpl::~ThreadLocalImpl() { }
-void ThreadLocalImpl::setInstance(const void* d) { data = const_cast<void*>(d);}
-const void* ThreadLocalImpl::getInstance() { return data; }
-void ThreadLocalImpl::removeInstance() { data = 0; }
-}
-#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(0) {
- pthread_key_t* key = new pthread_key_t;
- int errorcode = pthread_key_create(key, NULL);
- assert(errorcode == 0);
- (void) errorcode;
- data = (void*)key;
-}
-
-ThreadLocalImpl::~ThreadLocalImpl() {
- pthread_key_t* key = static_cast<pthread_key_t*>(data);
- int errorcode = pthread_key_delete(*key);
- assert(errorcode == 0);
- (void) errorcode;
- delete key;
-}
-
void ThreadLocalImpl::setInstance(const void* d) {
- pthread_key_t* key = static_cast<pthread_key_t*>(data);
- int errorcode = pthread_setspecific(*key, d);
- assert(errorcode == 0);
- (void) errorcode;
+ static_assert(sizeof(d) <= sizeof(data), "size too big");
+ void **pd = reinterpret_cast<void**>(&data);
+ *pd = const_cast<void*>(d);
}
-
-const void* ThreadLocalImpl::getInstance() {
- pthread_key_t* key = static_cast<pthread_key_t*>(data);
- return pthread_getspecific(*key);
+void *ThreadLocalImpl::getInstance() {
+ void **pd = reinterpret_cast<void**>(&data);
+ return *pd;
}
-
void ThreadLocalImpl::removeInstance() {
- setInstance(0);
+ setInstance(nullptr);
}
-
}
-
#elif defined(LLVM_ON_UNIX)
#include "Unix/ThreadLocal.inc"
#elif defined( LLVM_ON_WIN32)
#include "Windows/ThreadLocal.inc"
#else
-#warning Neither LLVM_ON_UNIX nor LLVM_ON_WIN32 was set in System/ThreadLocal.cpp
-#endif
+#warning Neither LLVM_ON_UNIX nor LLVM_ON_WIN32 set in Support/ThreadLocal.cpp
#endif