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author | Thiago Marcos P. Santos <thiago@mapbox.com> | 2016-08-03 19:24:04 +0300 |
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committer | Thiago Marcos P. Santos <tmpsantos@gmail.com> | 2017-07-07 18:10:06 +0300 |
commit | 7c117281bc8d53d9d6a1e3a9ff9760a5a5b44cf8 (patch) | |
tree | b94bade3a59aceaba9fb5117411ce850006de123 /platform/default | |
parent | 6b5f8fd6ef845fbf834968d94ec26cf26f645838 (diff) | |
download | qtlocation-mapboxgl-7c117281bc8d53d9d6a1e3a9ff9760a5a5b44cf8.tar.gz |
[core] Isolate pthread-based tls implementation
Diffstat (limited to 'platform/default')
-rw-r--r-- | platform/default/thread_local.cpp | 62 |
1 files changed, 62 insertions, 0 deletions
diff --git a/platform/default/thread_local.cpp b/platform/default/thread_local.cpp new file mode 100644 index 0000000000..b754a04b7d --- /dev/null +++ b/platform/default/thread_local.cpp @@ -0,0 +1,62 @@ +#include <mbgl/util/thread_local.hpp> + +#include <mbgl/map/backend_scope.hpp> +#include <mbgl/util/logging.hpp> +#include <mbgl/util/run_loop.hpp> + +#include <stdexcept> +#include <cassert> + +#include <pthread.h> + +namespace mbgl { +namespace util { + +template <class T> +class ThreadLocal<T>::Impl { +public: + pthread_key_t key; +}; + +template <class T> +ThreadLocal<T>::ThreadLocal() : impl(std::make_unique<Impl>()) { + int ret = pthread_key_create(&impl->key, [](void *) {}); + + if (ret) { + throw std::runtime_error("Failed to init local storage key."); + } +} + +template <class T> +ThreadLocal<T>::~ThreadLocal() { + delete get(); + + if (pthread_key_delete(impl->key)) { + Log::Error(Event::General, "Failed to delete local storage key."); + assert(false); + } +} + +template <class T> +T* ThreadLocal<T>::get() { + auto* ret = reinterpret_cast<T*>(pthread_getspecific(impl->key)); + if (!ret) { + return nullptr; + } + + return ret; +} + +template <class T> +void ThreadLocal<T>::set(T* ptr) { + if (pthread_setspecific(impl->key, ptr)) { + throw std::runtime_error("Failed to set local storage."); + } +} + +template class ThreadLocal<RunLoop>; +template class ThreadLocal<BackendScope>; +template class ThreadLocal<int>; // For unit tests + +} // namespace util +} // namespace mbgl |