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-rw-r--r--clang-tools-extra/clangd/Context.cpp46
1 files changed, 5 insertions, 41 deletions
diff --git a/clang-tools-extra/clangd/Context.cpp b/clang-tools-extra/clangd/Context.cpp
index 23006778f55..7ecaced52c4 100644
--- a/clang-tools-extra/clangd/Context.cpp
+++ b/clang-tools-extra/clangd/Context.cpp
@@ -8,49 +8,8 @@
//===---------------------------------------------------------------------===//
#include "Context.h"
-#include "llvm/Config/config.h"
#include <cassert>
-// The thread-local Context is scoped in a function to avoid init-order issues.
-// It's created by currentContext() when first needed.
-
-#ifdef HAVE_PTHREAD_GETSPECIFIC
-// We'd love to use thread_local everywhere.
-// It requires support from the runtime: __cxa_thread_atexit.
-// Rather than detect this, we use the pthread API where available.
-#include <pthread.h>
-#include <cstring>
-static clang::clangd::Context &currentContext() {
- using clang::clangd::Context;
- static pthread_key_t CtxKey;
-
- // Once (across threads), set up pthread TLS for Context, and its destructor.
- static int Dummy = [] { // Create key only once, for all threads.
- if (auto Err = pthread_key_create(&CtxKey, /*destructor=*/+[](void *Ctx) {
- delete reinterpret_cast<Context *>(Ctx);
- }))
- llvm_unreachable(strerror(Err));
- return 0;
- }();
- (void)Dummy;
-
- // Now grab the current context from TLS, and create it if it doesn't exist.
- void *Ctx = pthread_getspecific(CtxKey);
- if (!Ctx) {
- Ctx = new Context();
- if (auto Err = pthread_setspecific(CtxKey, Ctx))
- llvm_unreachable(strerror(Err));
- }
- return *reinterpret_cast<Context *>(Ctx);
-}
-#else
-// Only supported platform without pthread is windows, and thread_local works.
-static clang::clangd::Context &currentContext() {
- static thread_local auto C = clang::clangd::Context::empty();
- return C;
-}
-#endif
-
namespace clang {
namespace clangd {
@@ -61,6 +20,11 @@ Context::Context(std::shared_ptr<const Data> DataPtr)
Context Context::clone() const { return Context(DataPtr); }
+static Context &currentContext() {
+ static thread_local auto C = Context::empty();
+ return C;
+}
+
const Context &Context::current() { return currentContext(); }
Context Context::swapCurrent(Context Replacement) {
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