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authorAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
committerAlexander Harkness <bearbin@gmail.com>2013-11-24 15:21:13 +0100
commit3438e5d3ddf8444f0e31009ffbe8237ef3752c22 (patch)
tree7c2f76d5e9281c130e60fb932c4dda89a49863b6 /CryptoPP/mqueue.cpp
parentMoved source to src (diff)
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Diffstat (limited to 'CryptoPP/mqueue.cpp')
-rw-r--r--CryptoPP/mqueue.cpp174
1 files changed, 0 insertions, 174 deletions
diff --git a/CryptoPP/mqueue.cpp b/CryptoPP/mqueue.cpp
deleted file mode 100644
index 1d645d83d..000000000
--- a/CryptoPP/mqueue.cpp
+++ /dev/null
@@ -1,174 +0,0 @@
-// mqueue.cpp - written and placed in the public domain by Wei Dai
-
-#include "pch.h"
-
-#ifndef CRYPTOPP_IMPORTS
-
-#include "mqueue.h"
-
-NAMESPACE_BEGIN(CryptoPP)
-
-MessageQueue::MessageQueue(unsigned int nodeSize)
- : m_queue(nodeSize), m_lengths(1, 0U), m_messageCounts(1, 0U)
-{
-}
-
-size_t MessageQueue::CopyRangeTo2(BufferedTransformation &target, lword &begin, lword end, const std::string &channel, bool blocking) const
-{
- if (begin >= MaxRetrievable())
- return 0;
-
- return m_queue.CopyRangeTo2(target, begin, STDMIN(MaxRetrievable(), end), channel, blocking);
-}
-
-size_t MessageQueue::TransferTo2(BufferedTransformation &target, lword &transferBytes, const std::string &channel, bool blocking)
-{
- transferBytes = STDMIN(MaxRetrievable(), transferBytes);
- size_t blockedBytes = m_queue.TransferTo2(target, transferBytes, channel, blocking);
- m_lengths.front() -= transferBytes;
- return blockedBytes;
-}
-
-bool MessageQueue::GetNextMessage()
-{
- if (NumberOfMessages() > 0 && !AnyRetrievable())
- {
- m_lengths.pop_front();
- if (m_messageCounts[0] == 0 && m_messageCounts.size() > 1)
- m_messageCounts.pop_front();
- return true;
- }
- else
- return false;
-}
-
-unsigned int MessageQueue::CopyMessagesTo(BufferedTransformation &target, unsigned int count, const std::string &channel) const
-{
- ByteQueue::Walker walker(m_queue);
- std::deque<lword>::const_iterator it = m_lengths.begin();
- unsigned int i;
- for (i=0; i<count && it != --m_lengths.end(); ++i, ++it)
- {
- walker.TransferTo(target, *it, channel);
- if (GetAutoSignalPropagation())
- target.ChannelMessageEnd(channel, GetAutoSignalPropagation()-1);
- }
- return i;
-}
-
-void MessageQueue::swap(MessageQueue &rhs)
-{
- m_queue.swap(rhs.m_queue);
- m_lengths.swap(rhs.m_lengths);
-}
-
-const byte * MessageQueue::Spy(size_t &contiguousSize) const
-{
- const byte *result = m_queue.Spy(contiguousSize);
- contiguousSize = UnsignedMin(contiguousSize, MaxRetrievable());
- return result;
-}
-
-// *************************************************************
-
-unsigned int EqualityComparisonFilter::MapChannel(const std::string &channel) const
-{
- if (channel == m_firstChannel)
- return 0;
- else if (channel == m_secondChannel)
- return 1;
- else
- return 2;
-}
-
-size_t EqualityComparisonFilter::ChannelPut2(const std::string &channel, const byte *inString, size_t length, int messageEnd, bool blocking)
-{
- if (!blocking)
- throw BlockingInputOnly("EqualityComparisonFilter");
-
- unsigned int i = MapChannel(channel);
-
- if (i == 2)
- return Output(3, inString, length, messageEnd, blocking, channel);
- else if (m_mismatchDetected)
- return 0;
- else
- {
- MessageQueue &q1 = m_q[i], &q2 = m_q[1-i];
-
- if (q2.AnyMessages() && q2.MaxRetrievable() < length)
- goto mismatch;
-
- while (length > 0 && q2.AnyRetrievable())
- {
- size_t len = length;
- const byte *data = q2.Spy(len);
- len = STDMIN(len, length);
- if (memcmp(inString, data, len) != 0)
- goto mismatch;
- inString += len;
- length -= len;
- q2.Skip(len);
- }
-
- q1.Put(inString, length);
-
- if (messageEnd)
- {
- if (q2.AnyRetrievable())
- goto mismatch;
- else if (q2.AnyMessages())
- q2.GetNextMessage();
- else if (q2.NumberOfMessageSeries() > 0)
- goto mismatch;
- else
- q1.MessageEnd();
- }
-
- return 0;
-
-mismatch:
- return HandleMismatchDetected(blocking);
- }
-}
-
-bool EqualityComparisonFilter::ChannelMessageSeriesEnd(const std::string &channel, int propagation, bool blocking)
-{
- unsigned int i = MapChannel(channel);
-
- if (i == 2)
- {
- OutputMessageSeriesEnd(4, propagation, blocking, channel);
- return false;
- }
- else if (m_mismatchDetected)
- return false;
- else
- {
- MessageQueue &q1 = m_q[i], &q2 = m_q[1-i];
-
- if (q2.AnyRetrievable() || q2.AnyMessages())
- goto mismatch;
- else if (q2.NumberOfMessageSeries() > 0)
- return Output(2, (const byte *)"\1", 1, 0, blocking) != 0;
- else
- q1.MessageSeriesEnd();
-
- return false;
-
-mismatch:
- return HandleMismatchDetected(blocking);
- }
-}
-
-bool EqualityComparisonFilter::HandleMismatchDetected(bool blocking)
-{
- m_mismatchDetected = true;
- if (m_throwIfNotEqual)
- throw MismatchDetected();
- return Output(1, (const byte *)"\0", 1, 0, blocking) != 0;
-}
-
-NAMESPACE_END
-
-#endif