Function lockShared [src]

Blocks until shared lock ownership is acquired.

Prototype

pub fn lockShared(rwl: *SingleThreadedRwLock) void

Parameters

rwl: *SingleThreadedRwLock

Source

  pub fn lockShared(rwl: *SingleThreadedRwLock) void {
    switch (rwl.state) {
        .unlocked => {
            rwl.state = .locked_shared;
            assert(rwl.shared_count == 0);
            rwl.shared_count = 1;
        },
        .locked_shared => {
            rwl.shared_count += 1;
        },
        .locked_exclusive => unreachable, // deadlock detected
    }
}  