try_transition_to_unique_lock overloads

Synopses

Declared in <folly/synchronization/Lock.h>

Immediately attempts to atomically upgrade a shared lock to an exclusive lock.

template<typename Mutex>
unique_lock<Mutex>
try_transition_to_unique_lock(shared_lock<Mutex>& lock);

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Immediately attempts to atomically upgrade an upgrade lock to an exclusive lock.

template<typename Mutex>
unique_lock<Mutex>
try_transition_to_unique_lock(upgrade_lock<Mutex>& lock);

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Return Value

An exclusive lock holder; empty if the attempt failed.

Parameters

Name

Description

lock

The shared lock holder to transition from.

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