/* Schedules 'msg' to be sent on 'rpc' and returns 'rpc''s status (as with
* jsonrpc_get_status()).
*
* If 'msg' cannot be sent immediately, it is appended to a buffer. The caller
* is responsible for ensuring that the amount of buffered data is somehow
* limited. (jsonrpc_get_backlog() returns the amount of data currently
* buffered in 'rpc'.)
*
* Always takes ownership of 'msg', regardless of success. */
int
jsonrpc_send(struct jsonrpc *rpc, struct jsonrpc_msg *msg)
{
struct ofpbuf *buf;
struct json *json;
size_t length;
char *s;
if (rpc->status) {
jsonrpc_msg_destroy(msg);
return rpc->status;
}
jsonrpc_log_msg(rpc, "send", msg);
json = jsonrpc_msg_to_json(msg);
s = json_to_string(json, 0);
length = strlen(s);
json_destroy(json);
buf = xmalloc(sizeof *buf);
ofpbuf_use(buf, s, length);
ofpbuf_set_size(buf, length);
list_push_back(&rpc->output, &buf->list_node);
rpc->output_count++;
rpc->backlog += length;
if (rpc->output_count >= 50) {
VLOG_INFO_RL(&rl, "excessive sending backlog, jsonrpc: %s, num of"
" msgs: %"PRIuSIZE", backlog: %"PRIuSIZE".", rpc->name,
rpc->output_count, rpc->backlog);
}
if (rpc->backlog == length) {
jsonrpc_run(rpc);
}
return rpc->status;
}
/* Schedules 'msg' to be sent on 'rpc' and returns 'rpc''s status (as with
* jsonrpc_get_status()).
*
* If 'msg' cannot be sent immediately, it is appended to a buffer. The caller
* is responsible for ensuring that the amount of buffered data is somehow
* limited. (jsonrpc_get_backlog() returns the amount of data currently
* buffered in 'rpc'.)
*
* Always takes ownership of 'msg', regardless of success. */
int
jsonrpc_send(struct jsonrpc *rpc, struct jsonrpc_msg *msg)
{
struct ofpbuf *buf;
struct json *json;
struct ds ds = DS_EMPTY_INITIALIZER;
size_t length;
if (rpc->status) {
jsonrpc_msg_destroy(msg);
return rpc->status;
}
jsonrpc_log_msg(rpc, "send", msg);
json = jsonrpc_msg_to_json(msg);
json_to_ds(json, 0, &ds);
length = ds.length;
json_destroy(json);
buf = xmalloc(sizeof *buf);
ofpbuf_use_ds(buf, &ds);
list_push_back(&rpc->output, &buf->list_node);
rpc->output_count++;
rpc->backlog += length;
if (rpc->output_count >= 50) {
VLOG_INFO_RL(&rl, "excessive sending backlog, jsonrpc: %s, num of"
" msgs: %"PRIuSIZE", backlog: %"PRIuSIZE".", rpc->name,
rpc->output_count, rpc->backlog);
}
if (rpc->backlog == length) {
jsonrpc_run(rpc);
}
return rpc->status;
}
