Function tryLockShared [src]
Attempts to obtain shared lock ownership.
Returns true if the lock is obtained, false otherwise.
Prototype
pub fn tryLockShared(rwl: *SingleThreadedRwLock) bool Parameters
rwl: *SingleThreadedRwLock Source
pub fn tryLockShared(rwl: *SingleThreadedRwLock) bool {
switch (rwl.state) {
.unlocked => {
rwl.state = .locked_shared;
assert(rwl.shared_count == 0);
rwl.shared_count = 1;
return true;
},
.locked_shared => {
rwl.shared_count += 1;
return true;
},
.locked_exclusive => return false,
}
}