BloombergLP::bslmt::FastPostSemaphoreImpl

Synopsis

Declared in <bslmt_fastpostsemaphoreimpl.h>

template<
    class ATOMIC_OP,
    class MUTEX,
    class CONDITION,
    class THREADUTIL>
class FastPostSemaphoreImpl;

Name	Description
`ReturnValue`	Status codes returned by semaphore operations.

Name	Description
`FastPostSemaphoreImpl` [constructor]	Constructors
`clockType`	Return the clock type used for timeouts.
`disable`	Disable waiting on this semaphore.
`enable`	Enable waiting on this semaphore. If the semaphore is initially enabled, this call has no effect.
`getDisabledState`	Return an odd value if this semaphore is wait disabled, and an even value otherwise.
`getValue`	Return the current value (`count > 0 ? count : 0`) of this semaphore.
`getValueRaw`	Return the current value (`count`) of this semaphore.
`isDisabled`	Return `true` if this semaphore is wait disabled, and `false` otherwise. Note that the semaphore is created in the "wait enabled" state.
`post`	`post` overloads
`postWithRedundantSignal`	Atomically increase the count of this semaphore by the specified `value`.
`take`	Reduce the count by up to `maximumToTake` and return the amount taken.
`takeAll`	If the count of this semaphore is positive, reduce the count to 0 and return the original value of the count. Otherwise, do nothing and return 0.
`timedWait`	Block until a resource is available or `absTime` expires, then acquire it.
`tryWait`	Attempt to acquire a resource without blocking.
`wait`	Block until a resource is available and acquire it.

Name	Description
`k_AVAILABLE_INC`	Increment value for the available count in `d_state`.
`k_AVAILABLE_MASK`	Mask for the available-count field in `d_state`.
`k_AVAILABLE_SHIFT`	Bit shift for the available-count field in `d_state`.
`k_BLOCKED_INC`	Increment value for the blocked-thread count in `d_state`.
`k_BLOCKED_MASK`	Mask for the blocked-thread count field in `d_state`.
`k_DISABLED_GEN_INC`	Increment value for the disabled-generation count in `d_state`.
`k_DISABLED_GEN_MASK`	Mask for the disabled-generation field in `d_state`.
`k_DISABLED_GEN_SHIFT`	Bit shift for the disabled-generation field in `d_state`.