summaryrefslogtreecommitdiffstats
path: root/kdecore/network/ksocketbuffer.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'kdecore/network/ksocketbuffer.cpp')
-rw-r--r--kdecore/network/ksocketbuffer.cpp329
1 files changed, 0 insertions, 329 deletions
diff --git a/kdecore/network/ksocketbuffer.cpp b/kdecore/network/ksocketbuffer.cpp
deleted file mode 100644
index aacffde45..000000000
--- a/kdecore/network/ksocketbuffer.cpp
+++ /dev/null
@@ -1,329 +0,0 @@
-/* -*- C++ -*-
- * Copyright (C) 2003 Thiago Macieira <thiago.macieira@kdemail.net>
- *
- *
- * Permission is hereby granted, free of charge, to any person obtaining
- * a copy of this software and associated documentation files (the
- * "Software"), to deal in the Software without restriction, including
- * without limitation the rights to use, copy, modify, merge, publish,
- * distribute, sublicense, and/or sell copies of the Software, and to
- * permit persons to whom the Software is furnished to do so, subject to
- * the following conditions:
- *
- * The above copyright notice and this permission notice shall be included
- * in all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
- * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
- * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
- * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
- * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
- * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
- * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
- */
-
-#include <config.h>
-
-#include <assert.h>
-#include <string.h>
-
-#include "ksocketbase.h"
-#include "ksocketbuffer_p.h"
-
-using namespace KNetwork;
-using namespace KNetwork::Internal;
-
-KSocketBuffer::KSocketBuffer(TQ_LONG size)
- : m_mutex(true), m_offset(0), m_size(size), m_length(0)
-{
-}
-
-KSocketBuffer::KSocketBuffer(const KSocketBuffer& other)
- : KIOBufferBase(other), m_mutex(true)
-{
- *this = other;
-}
-
-KSocketBuffer::~KSocketBuffer()
-{
- // TQValueList takes care of deallocating memory
-}
-
-KSocketBuffer& KSocketBuffer::operator=(const KSocketBuffer& other)
-{
- TQMutexLocker locker1(&m_mutex);
- TQMutexLocker locker2(&other.m_mutex);
-
- KIOBufferBase::operator=(other);
-
- m_list = other.m_list; // copy-on-write
- m_offset = other.m_offset;
- m_size = other.m_size;
- m_length = other.m_length;
-
- return *this;
-}
-
-bool KSocketBuffer::canReadLine() const
-{
- TQMutexLocker locker(&m_mutex);
-
- TQValueListConstIterator<TQByteArray> it = m_list.constBegin(),
- end = m_list.constEnd();
- TQIODevice::Offset offset = m_offset;
-
- // walk the buffer
- for ( ; it != end; ++it)
- {
- if ((*it).find('\n', offset) != -1)
- return true;
- if ((*it).find('\r', offset) != -1)
- return true;
- offset = 0;
- }
-
- return false; // not found
-}
-
-TQCString KSocketBuffer::readLine()
-{
- if (!canReadLine())
- return TQCString(); // empty
-
- TQMutexLocker locker(&m_mutex);
-
- // find the offset of the newline in the buffer
- int newline = 0;
- TQValueListConstIterator<TQByteArray> it = m_list.constBegin(),
- end = m_list.constEnd();
- TQIODevice::Offset offset = m_offset;
-
- // walk the buffer
- for ( ; it != end; ++it)
- {
- int posnl = (*it).find('\n', offset);
- if (posnl == -1)
- {
- // not found in this one
- newline += (*it).size();
- offset = 0;
- continue;
- }
-
- // we found it
- newline += posnl;
- break;
- }
-
- TQCString result(newline + 2 - m_offset);
- consumeBuffer(result.data(), newline + 1 - m_offset);
- return result;
-}
-
-TQ_LONG KSocketBuffer::length() const
-{
- return m_length;
-}
-
-TQ_LONG KSocketBuffer::size() const
-{
- return m_size;
-}
-
-bool KSocketBuffer::setSize(TQ_LONG size)
-{
- m_size = size;
- if (size == -1 || m_length < m_size)
- return true;
-
- // size is now smaller than length
- TQMutexLocker locker(&m_mutex);
-
- // repeat the test
- if (m_length < m_size)
- return true;
-
- // discard from the beginning
- return (m_length - m_size) == consumeBuffer(0L, m_length - m_size, true);
-}
-
-TQ_LONG KSocketBuffer::feedBuffer(const char *data, TQ_LONG len)
-{
- if (data == 0L || len == 0)
- return 0; // nothing to write
- if (isFull())
- return -1; // can't write
-
- TQMutexLocker locker(&m_mutex);
-
- // verify if we can add len bytes
- if (m_size != -1 && (m_size - m_length) < len)
- len = m_size - m_length;
-
- TQByteArray a(len);
- a.duplicate(data, len);
- m_list.append(a);
-
- m_length += len;
- return len;
-}
-
-TQ_LONG KSocketBuffer::consumeBuffer(char *destbuffer, TQ_LONG maxlen, bool discard)
-{
- if (maxlen == 0 || isEmpty())
- return 0;
-
- TQValueListIterator<TQByteArray> it = m_list.begin(),
- end = m_list.end();
- TQIODevice::Offset offset = m_offset;
- TQ_LONG copied = 0;
-
- // walk the buffer
- while (it != end && maxlen)
- {
- // calculate how much we'll copy
- size_t to_copy = (*it).size() - offset;
- if (to_copy > maxlen)
- to_copy = maxlen;
-
- // do the copying
- if (destbuffer)
- memcpy(destbuffer + copied, (*it).data() + offset, to_copy);
- maxlen -= to_copy;
- copied += to_copy;
-
- if ((*it).size() - offset > to_copy)
- {
- // we did not copy everything
- offset += to_copy;
- break;
- }
- else
- {
- // we copied everything
- // discard this element;
- offset = 0;
- if (discard)
- it = m_list.remove(it);
- else
- ++it;
- }
- }
-
- if (discard)
- {
- m_offset = offset;
- m_length -= copied;
- assert(m_length >= 0);
- }
-
- return copied;
-}
-
-void KSocketBuffer::clear()
-{
- TQMutexLocker locker(&m_mutex);
- m_list.clear();
- m_offset = 0;
- m_length = 0;
-}
-
-TQ_LONG KSocketBuffer::sendTo(KActiveSocketBase* dev, TQ_LONG len)
-{
- if (len == 0 || isEmpty())
- return 0;
-
- TQMutexLocker locker(&m_mutex);
-
- TQValueListIterator<TQByteArray> it = m_list.begin(),
- end = m_list.end();
- TQIODevice::Offset offset = m_offset;
- TQ_LONG written = 0;
-
- // walk the buffer
- while (it != end && (len || len == -1))
- {
- // we have to write each element up to len bytes
- // but since we can have several very small buffers, we can make things
- // better by concatenating a few of them into a big buffer
- // question is: how big should that buffer be? 2 kB should be enough
-
- TQ_ULONG bufsize = 1460;
- if (len != -1 && len < bufsize)
- bufsize = len;
- TQByteArray buf(bufsize);
- TQ_LONG count = 0;
-
- while (it != end && count + ((*it).size() - offset) <= bufsize)
- {
- memcpy(buf.data() + count, (*it).data() + offset, (*it).size() - offset);
- count += (*it).size() - offset;
- offset = 0;
- ++it;
- }
-
- // see if we can still fit more
- if (count < bufsize && it != end)
- {
- // getting here means this buffer (*it) is larger than
- // (bufsize - count) (even for count == 0).
- memcpy(buf.data() + count, (*it).data() + offset, bufsize - count);
- offset += bufsize - count;
- count = bufsize;
- }
-
- // now try to write those bytes
- TQ_LONG wrote = dev->tqwriteBlock(buf, count);
-
- if (wrote == -1)
- // error?
- break;
-
- written += wrote;
- if (wrote != count)
- // can't fit more?
- break;
- }
-
- // discard data that has been written
- // this updates m_length too
- if (written)
- consumeBuffer(0L, written);
-
- return written;
-}
-
-TQ_LONG KSocketBuffer::receiveFrom(KActiveSocketBase* dev, TQ_LONG len)
-{
- if (len == 0 || isFull())
- return 0;
-
- TQMutexLocker locker(&m_mutex);
-
- if (len == -1)
- len = dev->bytesAvailable();
- if (len <= 0)
- // error or closing socket
- return len;
-
- // see if we can read that much
- if (m_size != -1 && len > (m_size - m_length))
- len = m_size - m_length;
-
- // here, len contains just as many bytes as we're supposed to read
-
- // now do the reading
- TQByteArray a(len);
- len = dev->tqreadBlock(a.data(), len);
-
- if (len == -1)
- // error?
- return -1;
-
- // success
- // resize the buffer and add it
- a.truncate(len);
- m_list.append(a);
- m_length += len;
- return len;
-}
generated by cgit v1.2.1 (git 2.18.0) at 2024-12-27 09:09:29 +0000