Add ownership checkings for FlagLock under debug (#432)

* add ownership checkings for FlagLock under debug Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * fix owner reset ordering Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * addresss CR Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * fix include and constexpr problem Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * use thread_local variable as thread identity Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * change default form for initialization Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * address CR Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * fix typo and format Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * add more assertions Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * adjust flag lock and comments Signed-off-by: SchrodingerZhu <i@zhuyi.fan> * address CR Signed-off-by: SchrodingerZhu <i@zhuyi.fan>
2021-12-02 17:18:24 +08:00
parent b1da339b3e
commit 9b548ed3a2
5 changed files with 124 additions and 8 deletions
--- a/src/backend/address_space.h
+++ b/src/backend/address_space.h
@@ -28,7 +28,7 @@ namespace snmalloc
     * This is infrequently used code, a spin lock simplifies the code
     * considerably, and should never be on the fast path.
     */
-    std::atomic_flag spin_lock = ATOMIC_FLAG_INIT;
+    FlagWord spin_lock{};

  public:
    /**
--- a/src/backend/globalconfig.h
+++ b/src/backend/globalconfig.h
@@ -46,7 +46,7 @@ namespace snmalloc
    inline static std::atomic<bool> initialised{false};

    SNMALLOC_REQUIRE_CONSTINIT
-    inline static std::atomic_flag initialisation_lock{};
+    inline static FlagWord initialisation_lock{};

  public:
    static ChunkAllocatorState&