Method TryAcquire

internal/pool/conn.go:810–814

TryAcquire attempts to acquire the connection for use. This is an optimized inline method for the hot path (Get operation). It tries to transition from IDLE -> IN_USE or CREATED -> CREATED. Returns true if the connection was successfully acquired, false otherwise. The CREATED->CREATED is done so we

()

// waiter notification, and benchmarks show 1-3% improvement. If the state machine ever
// needs to notify waiters on these transitions, update this to use TryTransitionFast().
func (cn *Conn) TryAcquire() bool {
	// The || operator short-circuits, so only 1 CAS in the common case
	return cn.stateMachine.state.CompareAndSwap(uint32(StateIdle), uint32(StateInUse)) ||
		cn.stateMachine.state.CompareAndSwap(uint32(StateCreated), uint32(StateCreated))
}

// Release releases the connection back to the pool.
// This is an optimized inline method for the hot path (Put operation).