StreamAsynchronousIO.cpp revision 269024 
1//===-- StreamBroadcast.cpp -------------------------------------*- C++ -*-===//
2//
3//                     The LLVM Compiler Infrastructure
4//
5// This file is distributed under the University of Illinois Open Source
6// License. See LICENSE.TXT for details.
7//
8//===----------------------------------------------------------------------===//
9
10#include <stdio.h>
11
12#include "lldb/lldb-private.h"
13#include "lldb/Core/Broadcaster.h"
14#include "lldb/Core/Event.h"
15#include "lldb/Core/StreamAsynchronousIO.h"
16
17using namespace lldb;
18using namespace lldb_private;
19
20
21StreamAsynchronousIO::StreamAsynchronousIO (Broadcaster &broadcaster, uint32_t broadcast_event_type) :
22    Stream (0, 4, eByteOrderBig),
23    m_broadcaster (broadcaster),
24    m_broadcast_event_type (broadcast_event_type),
25    m_accumulated_data ()
26{
27}
28
29StreamAsynchronousIO::~StreamAsynchronousIO ()
30{
31    // Flush when we destroy to make sure we display the data
32    Flush();
33}
34
35void
36StreamAsynchronousIO::Flush ()
37{
38    if (!m_accumulated_data.empty())
39    {
40        std::unique_ptr<EventDataBytes> data_bytes_ap (new EventDataBytes);
41        // Let's swap the bytes to avoid LARGE string copies.
42        data_bytes_ap->SwapBytes (m_accumulated_data);
43        EventSP new_event_sp (new Event (m_broadcast_event_type, data_bytes_ap.release()));
44        m_broadcaster.BroadcastEvent (new_event_sp);
45    }
46}
47
48size_t
49StreamAsynchronousIO::Write (const void *s, size_t length)
50{
51    m_accumulated_data.append ((const char *)s, length);
52    return length;
53}
54