[QPID-5896] [C++ client] Out of Bounds received when message is bigger than remaining TCP frame size

• Type: Bug
• Status: Open
• Priority: Minor
• Resolution: Unresolved
• Affects Version/s: 0.29
• Component/s: C++ Client
• Assignee: Unassigned
• Reporter: Pavel Moravec
• Created: 16/Jul/14 07:27
• Updated: 16/Jul/14 07:27

Description

When implementing QPID-5895: if a message is split between two (or more) TCP/IP frames, ConnectionContext::get method raises:

Out of Bounds: requested advance of 1000 at 44 but only 434 available

That is due to the fact that the code calls:

current = pn_link_current(..) // that returns just incomplete part of the message from already-read-TCP-frame
new EncodedMessage(pn_delivery_pending(current)) //here we create EncodedMessage with incomplete length

There needs to be a loop like:

current = pn_link_current(..)
while pn_delivery_partial(current) {
    buffer_current_somewhere;
    current = pn_link_current(..);
    if (!current)
        wait_for_session_to_get_new_frame
}
encoded(new EncodedMessage(pn_delivery_pending(all_current_deliveries)));