diff options
Diffstat (limited to 'absl/base/internal/thread_identity.cc')
| -rw-r--r-- | absl/base/internal/thread_identity.cc | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/absl/base/internal/thread_identity.cc b/absl/base/internal/thread_identity.cc index 6a28f246dbdb..d63a04ae91d5 100644 --- a/absl/base/internal/thread_identity.cc +++ b/absl/base/internal/thread_identity.cc @@ -113,6 +113,18 @@ void SetCurrentThreadIdentity( #endif } +#if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \ + ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 + +// Please see the comment on `CurrentThreadIdentityIfPresent` in +// thread_identity.h. Because DLLs cannot expose thread_local variables in +// headers, we opt for the correct-but-slower option of placing the definition +// of this function only in a translation unit inside DLL. +#if defined(ABSL_BUILD_DLL) || defined(ABSL_CONSUME_DLL) +ThreadIdentity* CurrentThreadIdentityIfPresent() { return thread_identity_ptr; } +#endif +#endif + void ClearCurrentThreadIdentity() { #if ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_TLS || \ ABSL_THREAD_IDENTITY_MODE == ABSL_THREAD_IDENTITY_MODE_USE_CPP11 |