コード例 #1
0
ファイル: jsonrpc.c プロジェクト: rafaelfonte/ovs
static void
jsonrpc_session_connect(struct jsonrpc_session *s)
{
    const char *name = reconnect_get_name(s->reconnect);
    int error;

    jsonrpc_session_disconnect(s);
    if (!reconnect_is_passive(s->reconnect)) {
        error = jsonrpc_stream_open(name, &s->stream, s->dscp);
        if (!error) {
            reconnect_connecting(s->reconnect, time_msec());
        } else {
            s->last_error = error;
        }
    } else {
        error = s->pstream ? 0 : jsonrpc_pstream_open(name, &s->pstream,
                                                      s->dscp);
        if (!error) {
            reconnect_listening(s->reconnect, time_msec());
        }
    }

    if (error) {
        reconnect_connect_failed(s->reconnect, time_msec(), error);
    }
    s->seqno++;
}
コード例 #2
0
ファイル: jsonrpc.c プロジェクト: rafaelfonte/ovs
void
jsonrpc_session_run(struct jsonrpc_session *s)
{
    if (s->pstream) {
        struct stream *stream;
        int error;

        error = pstream_accept(s->pstream, &stream);
        if (!error) {
            if (s->rpc || s->stream) {
                VLOG_INFO_RL(&rl,
                             "%s: new connection replacing active connection",
                             reconnect_get_name(s->reconnect));
                jsonrpc_session_disconnect(s);
            }
            reconnect_connected(s->reconnect, time_msec());
            s->rpc = jsonrpc_open(stream);
        } else if (error != EAGAIN) {
            reconnect_listen_error(s->reconnect, time_msec(), error);
            pstream_close(s->pstream);
            s->pstream = NULL;
        }
    }

    if (s->rpc) {
        size_t backlog;
        int error;

        backlog = jsonrpc_get_backlog(s->rpc);
        jsonrpc_run(s->rpc);
        if (jsonrpc_get_backlog(s->rpc) < backlog) {
            /* Data previously caught in a queue was successfully sent (or
             * there's an error, which we'll catch below.)
             *
             * We don't count data that is successfully sent immediately as
             * activity, because there's a lot of queuing downstream from us,
             * which means that we can push a lot of data into a connection
             * that has stalled and won't ever recover.
             */
            reconnect_activity(s->reconnect, time_msec());
        }

        error = jsonrpc_get_status(s->rpc);
        if (error) {
            reconnect_disconnected(s->reconnect, time_msec(), error);
            jsonrpc_session_disconnect(s);
            s->last_error = error;
        }
    } else if (s->stream) {
        int error;

        stream_run(s->stream);
        error = stream_connect(s->stream);
        if (!error) {
            reconnect_connected(s->reconnect, time_msec());
            s->rpc = jsonrpc_open(s->stream);
            s->stream = NULL;
        } else if (error != EAGAIN) {
            reconnect_connect_failed(s->reconnect, time_msec(), error);
            stream_close(s->stream);
            s->stream = NULL;
            s->last_error = error;
        }
    }

    switch (reconnect_run(s->reconnect, time_msec())) {
    case RECONNECT_CONNECT:
        jsonrpc_session_connect(s);
        break;

    case RECONNECT_DISCONNECT:
        reconnect_disconnected(s->reconnect, time_msec(), 0);
        jsonrpc_session_disconnect(s);
        break;

    case RECONNECT_PROBE:
        if (s->rpc) {
            struct json *params;
            struct jsonrpc_msg *request;

            params = json_array_create_empty();
            request = jsonrpc_create_request("echo", params, NULL);
            json_destroy(request->id);
            request->id = json_string_create("echo");
            jsonrpc_send(s->rpc, request);
        }
        break;
    }
}
コード例 #3
0
ファイル: jsonrpc.c プロジェクト: enukane/ovs
void
jsonrpc_session_run(struct jsonrpc_session *s)
{
    if (s->pstream) {
        struct stream *stream;
        int error;

        error = pstream_accept(s->pstream, &stream);
        if (!error) {
            if (s->rpc || s->stream) {
                VLOG_INFO_RL(&rl,
                             "%s: new connection replacing active connection",
                             reconnect_get_name(s->reconnect));
                jsonrpc_session_disconnect(s);
            }
            reconnect_connected(s->reconnect, time_msec());
            s->rpc = jsonrpc_open(stream);
        } else if (error != EAGAIN) {
            reconnect_listen_error(s->reconnect, time_msec(), error);
            pstream_close(s->pstream);
            s->pstream = NULL;
        }
    }

    if (s->rpc) {
        int error;

        jsonrpc_run(s->rpc);
        error = jsonrpc_get_status(s->rpc);
        if (error) {
            reconnect_disconnected(s->reconnect, time_msec(), error);
            jsonrpc_session_disconnect(s);
        }
    } else if (s->stream) {
        int error;

        stream_run(s->stream);
        error = stream_connect(s->stream);
        if (!error) {
            reconnect_connected(s->reconnect, time_msec());
            s->rpc = jsonrpc_open(s->stream);
            s->stream = NULL;
        } else if (error != EAGAIN) {
            reconnect_connect_failed(s->reconnect, time_msec(), error);
            stream_close(s->stream);
            s->stream = NULL;
        }
    }

    switch (reconnect_run(s->reconnect, time_msec())) {
    case RECONNECT_CONNECT:
        jsonrpc_session_connect(s);
        break;

    case RECONNECT_DISCONNECT:
        reconnect_disconnected(s->reconnect, time_msec(), 0);
        jsonrpc_session_disconnect(s);
        break;

    case RECONNECT_PROBE:
        if (s->rpc) {
            struct json *params;
            struct jsonrpc_msg *request;

            params = json_array_create_empty();
            request = jsonrpc_create_request("echo", params, NULL);
            json_destroy(request->id);
            request->id = json_string_create("echo");
            jsonrpc_send(s->rpc, request);
        }
        break;
    }
}