| 49 | } |
| 50 | |
| 51 | void SharedLoadBalancer::ExposeLB() { |
| 52 | bool changed = false; |
| 53 | _st_mutex.lock(); |
| 54 | if (!_exposed) { |
| 55 | _exposed = true; |
| 56 | changed = true; |
| 57 | } |
| 58 | _st_mutex.unlock(); |
| 59 | if (changed) { |
| 60 | char name[32]; |
| 61 | snprintf(name, sizeof(name), "_load_balancer_%d", g_lb_counter.fetch_add( |
| 62 | 1, butil::memory_order_relaxed)); |
| 63 | _st.expose(name); |
| 64 | } |
| 65 | } |
| 66 | |
| 67 | SharedLoadBalancer::SharedLoadBalancer() |
| 68 | : _lb(NULL) |