73f6d943e1
This patch adds new class distributed_device which is responsible for initializing HW device and it is shared between all cpus. Old device class responsibility becomes managing rx/tx queue pair and it is local per cpu. Each cpu have to call distributed_device::init_local_queue() to create its own device. The logic to distribute cpus between available queues (in case there is no enough queues for each cpu) is in the distributed_device currently and not really implemented yet, so only one queue or queues == cpus scenarios are supported currently, but this can be fixed later. The plan is to rename "distributed_device" to "device" and "device" to "queue_pair" in later patches.
54 lines
1.5 KiB
C++
54 lines
1.5 KiB
C++
/*
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* Copyright (C) 2014 Cloudius Systems, Ltd.
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*/
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#include "net/ip.hh"
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#include "net/virtio.hh"
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#include "net/tcp.hh"
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using namespace net;
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struct tcp_test {
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ipv4& inet;
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using tcp = net::tcp<ipv4_traits>;
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tcp::listener _listener;
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struct connection {
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tcp::connection tcp_conn;
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explicit connection(tcp::connection tc) : tcp_conn(std::move(tc)) {}
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void run() {
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tcp_conn.wait_for_data().then([this] {
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auto p = tcp_conn.read();
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if (!p.len()) {
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tcp_conn.close_write();
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return;
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}
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print("read %d bytes\n", p.len());
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tcp_conn.send(std::move(p));
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run();
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});
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}
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};
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tcp_test(ipv4& inet) : inet(inet), _listener(inet.get_tcp().listen(10000)) {}
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void run() {
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_listener.accept().then([this] (tcp::connection conn) {
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(new connection(std::move(conn)))->run();
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run();
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});
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}
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};
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int main(int ac, char** av) {
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boost::program_options::variables_map opts;
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opts.insert(std::make_pair("tap-device", boost::program_options::variable_value(std::string("tap0"), false)));
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auto vnet = create_virtio_net_device(opts);
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interface netif(std::move(vnet));
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ipv4 inet(&netif);
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inet.set_host_address(ipv4_address("192.168.122.2"));
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tcp_test tt(inet);
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engine.when_started().then([&tt] { tt.run(); });
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engine.run();
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}
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