Brazilian Wandering Spider (OurBreathingPlanet/Flickr). The Brazilian Wandering spider isnât the worldâs biggest spider with itâs 5.9-inch leg span, but it does have one of the deadliest venoms. This spiderâs venom rarely kills humans, but its bite will make you writhe in pain.
Lock definition, a device for securing a door, gate, lid, drawer, or the like in position when closed, consisting of a bolt or system of bolts propelled and withdrawn by a mechanism operated by a key, dial, etc. 2. a contrivance for fastening or securing something. 3. the mechanism that explodes the charge; gunlock. safety (def 4).
Call DECLARE_LOCK(name) to create a lock definition, LOCK(name) to acquire the lock, and UNLOCK(name) to release it. The LOCK macro will spin until the lock is released before continuing. This code makes use of intrisics specific to GCC, but it also compiles on Clang.