void Connection_execute_start(Connection *connection, Executor *executor, Batch *batch, int ordinal)
{
DEBUG(("Connection exec\n"));
connection->current_batch = batch;
connection->current_executor = executor;
if(CS_ABORTED == connection->state) {
connection->state = CS_CLOSED;
}
ReplyParser_reset(connection->parser);
Buffer_flip(Batch_write_buffer(batch));
DEBUG(("Connection exec write buff:\n"));
#ifndef NDEBUG
Buffer_dump(Batch_write_buffer(batch), 128);
#endif
//kick off writing:
Connection_write_data(connection, ordinal);
//kick off reading when socket becomes readable
if(CS_CONNECTED == connection->state) {
Executor_notify_event(connection->current_executor, connection, EVENT_READ, ordinal);
}
}
void Connection_read_data(Connection *connection, int ordinal)
{
if(CS_ABORTED == connection->state) {
return;
}
DEBUG(("connection read data fd: %d\n", connection->sockfd));
assert(connection->current_batch != NULL);
assert(connection->current_executor != NULL);
assert(CS_CONNECTED == connection->state);
Buffer *buffer = Batch_read_buffer(connection->current_batch);
assert(buffer != NULL);
while(Batch_has_command(connection->current_batch)) {
DEBUG(("exec rp\n"));
Reply *reply = NULL;
ReplyParserResult rp_res = ReplyParser_execute(connection->parser, Buffer_data(buffer), Buffer_position(buffer), &reply);
switch(rp_res) {
case RPR_ERROR: {
Connection_abort(connection, "result parse error");
return;
}
case RPR_MORE: {
DEBUG(("read data RPR_MORE buf recv\n"));
size_t res = Buffer_recv(buffer, connection->sockfd);
DEBUG(("read data RPR_MORE res: %d\n", res));
#ifndef NDEBUG
Buffer_dump(buffer, 128);
#endif
if(res == -1) {
if(errno == EAGAIN) {
DEBUG(("read data expecting more data in future, adding event\n"));
Executor_notify_event(connection->current_executor, connection, EVENT_READ, ordinal);
return;
}
else {
Connection_abort(connection, "read error, errno: [%d] %s", errno, strerror(errno));
return;
}
}
else if(res == 0) {
Connection_abort(connection, "read eof");
return;
}
break;
}
case RPR_REPLY: {
DEBUG(("read data RPR_REPLY batch add reply\n"));
Batch_add_reply(connection->current_batch, reply);
break;
}
default:
Connection_abort(connection, "unexpected result parser result, rpres: %d", rp_res);
return;
}
}
}
