class RefcountAndFlags

Defined at line 141 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

Compact class for tracking the reference count and state flags for CordRep

instances. Data is stored in an atomic int32_t for compactness and speed.

Public Methods

void RefcountAndFlags ()

Defined at line 143 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

void RefcountAndFlags (Immortal )

Defined at line 145 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

void Increment ()

Increments the reference count. Imposes no memory ordering.

Defined at line 148 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

bool Decrement ()

Asserts that the current refcount is greater than 0. If the refcount is

greater than 1, decrements the reference count.

Returns false if there are no references outstanding; true otherwise.

Inserts barriers to ensure that state written before this method returns

false will be visible to a thread that just observed this method returning

false. Always returns false when the immortal bit is set.

Defined at line 159 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

bool DecrementExpectHighRefcount ()

Same as Decrement but expect that refcount is greater than 1.

Defined at line 168 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

size_t Get ()

Returns the current reference count using acquire semantics.

Defined at line 176 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

bool IsOne ()

Returns whether the atomic integer is 1.

If the reference count is used in the conventional way, a

reference count of 1 implies that the current thread owns the

reference and no other thread shares it.

This call performs the test for a reference count of one, and

performs the memory barrier needed for the owning thread

to act on the object, knowing that it has exclusive access to the

object. Always returns false when the immortal bit is set.

Defined at line 189 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h

bool IsImmortal ()

Defined at line 193 of file ../../third_party/abseil-cpp/src/absl/strings/internal/cord_internal.h