Function wait [src]

Checks if ptr still contains the value expect and, if so, blocks the caller until either: The value at ptr is no longer equal to expect. The caller is unblocked by a matching wake(). The caller is unblocked spuriously ("at random"). The checking of ptr and expect, along with blocking the caller, is done atomically and totally ordered (sequentially consistent) with respect to other wait()/wake() calls on the same ptr.

Prototype

pub fn wait(ptr: *const atomic.Value(u32), expect: u32) void

Parameters

ptr: *const atomic.Value(u32)expect: u32

Source

  pub fn wait(ptr: *const atomic.Value(u32), expect: u32) void {
    @branchHint(.cold);

    Impl.wait(ptr, expect, null) catch |err| switch (err) {
        error.Timeout => unreachable, // null timeout meant to wait forever
    };
}  