Function post_completion

c/src/proactor/win_iocp.cpp:1741–1749

static void proactor_shutdown(pn_proactor_t *p);

static void post_completion(iocp_t *iocp, ULONG_PTR arg1, void *arg2) {
    // Despite the vagueness of the official documentation, the
    // following args to Post are passed undisturbed and unvalidated
    // to GetQueuedCompletionStatus().  In particular, arg2 does not
    // have to be an OVERLAPPED struct and may be NULL.

    DWORD nxfer = 0;            // We could pass this through too if needed.
    PostQueuedCompletionStatus(iocp->completion_port, nxfer, arg1, (LPOVERLAPPED) arg2);
}

static inline bool is_write_result(iocp_result_t *r) {
    return r && r->type == IOCP_WRITE;