summaryrefslogtreecommitdiffstats
path: root/libktorrent/torrent/chunk.cpp
diff options
context:
space:
mode:
Diffstat (limited to 'libktorrent/torrent/chunk.cpp')
-rw-r--r--libktorrent/torrent/chunk.cpp81
1 files changed, 81 insertions, 0 deletions
diff --git a/libktorrent/torrent/chunk.cpp b/libktorrent/torrent/chunk.cpp
new file mode 100644
index 0000000..6873713
--- /dev/null
+++ b/libktorrent/torrent/chunk.cpp
@@ -0,0 +1,81 @@
+/***************************************************************************
+ * Copyright (C) 2005 by Joris Guisson *
+ * joris.guisson@gmail.com *
+ * *
+ * This program 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 2 of the License, or *
+ * (at your option) any later version. *
+ * *
+ * This program 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 this program; if not, write to the *
+ * Free Software Foundation, Inc., *
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. *
+ ***************************************************************************/
+#include <util/sha1hash.h>
+#include "chunk.h"
+#include "globals.h"
+
+
+namespace bt
+{
+
+ Chunk::Chunk(unsigned int index,Uint32 size)
+ : status(Chunk::NOT_DOWNLOADED),index(index),
+ data(0),size(size),ref_count(0),priority(NORMAL_PRIORITY)
+ {
+ }
+
+
+ Chunk::~Chunk()
+ {
+ clear();
+ }
+
+ void Chunk::setData(Uint8* d,Status nstatus)
+ {
+ clear();
+ status = nstatus;
+ data = d;
+ }
+
+ void Chunk::allocate()
+ {
+ clear();
+ status = BUFFERED;
+ data = new Uint8[size];
+ }
+
+ void Chunk::clear()
+ {
+ if (data)
+ {
+ if (status == BUFFERED)
+ delete [] data;
+ data = 0;
+ }
+ }
+
+ void Chunk::unmapped()
+ {
+ setData(0,Chunk::ON_DISK);
+ }
+
+ bool Chunk::checkHash(const SHA1Hash & h) const
+ {
+ if (status != BUFFERED && status != MMAPPED)
+ {
+ return false;
+ }
+ else
+ {
+ return SHA1Hash::generate(data,size) == h;
+ }
+ }
+
+}