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authorXavier Hernandez <xhernandez@datalab.es>2014-05-05 12:57:34 +0200
committerVijay Bellur <vbellur@redhat.com>2014-07-11 10:33:40 -0700
commitad112305a1c7452b13c92238b40ded80361838f3 (patch)
tree82dbf9aa0b77eb76d43c8b1ccb3ba58e61bc4e2a /xlators/cluster/ec/src/ec-method.h
parent6b4702897bd56e29db4db06f8cf896f89df1133c (diff)
cluster/ec: Added erasure code translator
Change-Id: I293917501d5c2ca4cdc6303df30cf0b568cea361 BUG: 1118629 Signed-off-by: Xavier Hernandez <xhernandez@datalab.es> Reviewed-on: http://review.gluster.org/7749 Reviewed-by: Krishnan Parthasarathi <kparthas@redhat.com> Reviewed-by: Jeff Darcy <jdarcy@redhat.com> Tested-by: Gluster Build System <jenkins@build.gluster.com> Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'xlators/cluster/ec/src/ec-method.h')
-rw-r--r--xlators/cluster/ec/src/ec-method.h42
1 files changed, 42 insertions, 0 deletions
diff --git a/xlators/cluster/ec/src/ec-method.h b/xlators/cluster/ec/src/ec-method.h
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+++ b/xlators/cluster/ec/src/ec-method.h
@@ -0,0 +1,42 @@
+/*
+ Copyright (c) 2012 DataLab, s.l. <http://www.datalab.es>
+
+ This file is part of the cluster/ec translator for GlusterFS.
+
+ The cluster/ec translator for GlusterFS 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.
+
+ The cluster/ec translator for GlusterFS 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 the cluster/ec translator for GlusterFS. If not, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __EC_METHOD_H__
+#define __EC_METHOD_H__
+
+#include "ec-gf.h"
+
+#define EC_METHOD_MAX_FRAGMENTS 16
+
+#define EC_METHOD_WORD_SIZE 16
+
+#define EC_BUFFER_ALIGN_SIZE EC_METHOD_WORD_SIZE
+
+#define EC_METHOD_BITS EC_GF_BITS
+#define EC_METHOD_SIZE (1 << (EC_METHOD_BITS))
+#define EC_METHOD_CHUNK_SIZE (EC_METHOD_WORD_SIZE * EC_METHOD_BITS)
+
+void ec_method_initialize(void);
+size_t ec_method_encode(size_t size, uint32_t columns, uint32_t row,
+ uint8_t * in, uint8_t * out);
+size_t ec_method_decode(size_t size, uint32_t columns, uint32_t * rows,
+ uint8_t ** in, uint8_t * out);
+
+#endif /* __EC_METHOD_H__ */