Method load_outbox

system/lib/llvm-libc/shared/rpc.h:123–127

Retrieve the outbox state from memory shared between processes.

  /// Retrieve the outbox state from memory shared between processes.
  RPC_ATTRS uint32_t load_outbox(uint64_t lane_mask, uint32_t index) const {
    return rpc::broadcast_value(
        lane_mask, __scoped_atomic_load_n(&outbox[index], __ATOMIC_RELAXED,
                                          __MEMORY_SCOPE_SYSTEM));
  }

  /// Signal to the other process that this one is finished with the buffer.
  /// Equivalent to loading outbox followed by store of the inverted value