reuse_write_wait_pop
while((w = reuse_write_wait_pop(&pend->reuse)) != NULL) {
pend->query = reuse_write_wait_pop(&pend->reuse);
struct waiting_tcp* reuse_write_wait_pop(struct reuse_tcp* reuse);
while((w = reuse_write_wait_pop(&pend->reuse)) != NULL) {
pend->query = reuse_write_wait_pop(&pend->reuse);
struct waiting_tcp* reuse_write_wait_pop(struct reuse_tcp* reuse);
w = reuse_write_wait_pop(reuse);