drained_writecb 42 opal/mca/event/libevent2022/libevent/sample/le-proxy.c static void drained_writecb(struct bufferevent *bev, void *ctx); drained_writecb 64 opal/mca/event/libevent2022/libevent/sample/le-proxy.c bufferevent_setcb(partner, readcb, drained_writecb,