summaryrefslogtreecommitdiffstats
path: root/network/akgnet_commbuffer.cc
diff options
context:
space:
mode:
authorConstantin Jucovschi <cj@ubuntu.localdomain>2009-04-24 07:20:22 -0400
committerConstantin Jucovschi <cj@ubuntu.localdomain>2009-04-24 07:20:22 -0400
commit8f27e65bddd7d4b8515ce620fb485fdd78fcdf89 (patch)
treebd328a4dd4f92d32202241b5e3a7f36177792c5f /network/akgnet_commbuffer.cc
downloadrasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.zip
rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.gz
rasdaman-upstream-8f27e65bddd7d4b8515ce620fb485fdd78fcdf89.tar.xz
Initial commitv8.0
Diffstat (limited to 'network/akgnet_commbuffer.cc')
-rw-r--r--network/akgnet_commbuffer.cc190
1 files changed, 190 insertions, 0 deletions
diff --git a/network/akgnet_commbuffer.cc b/network/akgnet_commbuffer.cc
new file mode 100644
index 0000000..3c5c561
--- /dev/null
+++ b/network/akgnet_commbuffer.cc
@@ -0,0 +1,190 @@
+/*
+* This file is part of rasdaman community.
+*
+* Rasdaman community is free software: you can redistribute it and/or modify
+* it under the terms of the GNU General Public License as published by
+* the Free Software Foundation, either version 3 of the License, or
+* (at your option) any later version.
+*
+* Rasdaman community is distributed in the hope that it will be useful,
+* but WITHOUT ANY WARRANTY; without even the implied warranty of
+* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+* GNU General Public License for more details.
+*
+* You should have received a copy of the GNU General Public License
+* along with rasdaman community. If not, see <http://www.gnu.org/licenses/>.
+*
+* Copyright 2003, 2004, 2005, 2006, 2007, 2008, 2009 Peter Baumann /
+rasdaman GmbH.
+*
+* For more information please see <http://www.rasdaman.org>
+* or contact Peter Baumann via <baumann@rasdaman.com>.
+/
+/**
+ * SOURCE: akgnet_commbuffer.cc
+ *
+ * MODULE: akg network
+ * CLASS: CommBuffer
+ *
+ * COMMENTS:
+ *
+ */
+
+#include <akgnet_commbuffer.hh>
+#include <string>
+#include <assert.h>
+
+
+akg::CommBuffer::CommBuffer() throw()
+ {
+ data = NULL;
+ buffSize = 0;
+ fillSize = 0;
+ sendSize = 0;
+ allocated= false;
+ }
+
+akg::CommBuffer::CommBuffer(int size) throw()
+ {
+ assert(size > 0);
+ allocate(size);
+ }
+
+akg::CommBuffer::CommBuffer(void *externalBuffer,int totalSize, int dataSize) throw()
+ {
+ data = NULL;
+ takeOver(externalBuffer,totalSize,dataSize);
+ }
+
+akg::CommBuffer::~CommBuffer() throw()
+ {
+ freeBuffer();
+ }
+
+bool akg::CommBuffer::allocate(int size) throw()
+ {
+ assert(size > 0);
+
+ freeBuffer();
+ data = new char[size];
+ // new throws?
+ buffSize=size;
+ allocated=true;
+ return true;
+ }
+
+void akg::CommBuffer::freeBuffer() throw()
+ {
+ if(allocated == true && data != NULL) delete[] data;
+ data = NULL;
+ buffSize = 0;
+ fillSize = 0;
+ sendSize = 0;
+ allocated= false;
+ }
+
+void akg::CommBuffer::takeOver(void *externalBuffer,int totalSize, int dataSize) throw()
+ {
+ assert(externalBuffer != 0);
+ assert(totalSize > 0);
+ assert(dataSize >= 0);
+ assert(totalSize >= dataSize);
+
+ freeBuffer();
+ data = (char*)externalBuffer;
+ buffSize = totalSize;
+ fillSize = dataSize;
+ }
+
+bool akg::CommBuffer::resize(int newSize) throw()
+ {
+ assert(data != 0);
+
+ // we can't make the buffer smaller by truncating inside data!
+ if(newSize < fillSize) return false;
+
+ char *newData = new char[newSize];
+ memcpy(newData, data, fillSize);
+ if(allocated == true ) delete[] data;
+
+ data = newData;
+ buffSize = newSize;
+ allocated = true;
+ return true;
+ }
+
+void* akg::CommBuffer::getData() throw(){ return data;}
+int akg::CommBuffer::getDataSize() throw(){ return fillSize;}
+int akg::CommBuffer::getBufferSize() throw(){ return buffSize;}
+int akg::CommBuffer::getSendedSize() throw(){ return sendSize;}
+int akg::CommBuffer::getNotFilledSize() throw(){ return buffSize-fillSize;}
+int akg::CommBuffer::getNotSendedSize() throw(){ return fillSize-sendSize;}
+bool akg::CommBuffer::isAllocated() throw(){ return allocated;}
+
+int akg::CommBuffer::read(FileDescriptor &socket) throw()
+ {
+ int rasp = socket.read(data+fillSize,buffSize-fillSize);
+
+ if(rasp>=0) fillSize += rasp;
+
+ return rasp;
+ }
+
+int akg::CommBuffer::read(const void *externalBuffer,int size) throw()
+ {
+ assert(externalBuffer != 0);
+ assert(size >= 0);
+
+ int cpSize = size<(buffSize-fillSize) ? size:(buffSize-fillSize);
+
+ memcpy(data+fillSize,externalBuffer,cpSize);
+ fillSize += cpSize;
+
+ return cpSize;
+ }
+
+int akg::CommBuffer::reserve(int size) throw()
+ {
+ assert(size >= 0);
+
+ int cpSize = size<(buffSize-fillSize) ? size:(buffSize-fillSize);
+
+ fillSize += cpSize;
+
+ return cpSize;
+ }
+
+int akg::CommBuffer::write(FileDescriptor &socket) throw()
+ {
+ DBTALK("CommBuffer write fillSize="<<fillSize<<" sendSize="<<sendSize);
+ int rasp = socket.write(data+sendSize,fillSize-sendSize);
+
+ if(rasp>=0) sendSize+=rasp;
+
+ return rasp;
+ }
+
+int akg::CommBuffer::write(void *externalBuffer,int size) throw()
+ {
+ assert(externalBuffer != 0);
+ assert(size >= 0);
+
+ int cpSize = size<(fillSize-sendSize) ? size:(fillSize-sendSize);
+
+ memcpy(externalBuffer,data+sendSize,cpSize);
+ sendSize+=cpSize;
+
+ return cpSize;
+ }
+
+void akg::CommBuffer::clearToRead() throw()
+ {
+ DBTALK("CommBuffer clearToRead");
+ fillSize=0;sendSize=0;
+ }
+void akg::CommBuffer::clearToWrite() throw()
+ {
+ DBTALK("CommBuffer clearToWrite");
+ sendSize=0;
+ }
+