void native_linux_aio_provider::get_event()
{
struct io_event events[1];
int ret;
const char* name = ::dsn::tools::get_service_node_name(node());
char buffer[128];
sprintf(buffer, "%s.aio", name);
task_worker::set_name(buffer);
while (true)
{
ret = io_getevents(_ctx, 1, 1, events, NULL);
if (ret > 0) // should be 1
{
dassert(ret == 1, "");
struct iocb *io = events[0].obj;
complete_aio(io, static_cast<int>(events[0].res), static_cast<int>(events[0].res2));
}
else
{
dwarn("io_getevents returns %d, you probably want to try on another machine:-(", ret);
}
}
}
hpc_aio_provider::hpc_aio_provider(disk_engine* disk, aio_provider* inner_provider)
: aio_provider(disk, inner_provider)
{
_callback = [this](
int native_error,
uint32_t io_size,
uintptr_t lolp_or_events
)
{
auto e = (struct kevent*)lolp_or_events;
auto io = (struct aiocb*)(e->ident);
complete_aio(io);
};
_looper = nullptr;
}
