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>

1 files changed, 59 insertions, 0 deletions

diff --git a/xlators/cluster/ec/src/ec-helpers.h b/xlators/cluster/ec/src/ec-helpers.h
new file mode 100644
index 00000000000..6625ade4b08
--- /dev/null
+++ b/xlators/cluster/ec/src/ec-helpers.h
@@ -0,0 +1,59 @@
+/*
+  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_HELPERS_H__
+#define __EC_HELPERS_H__
+
+#include "ec-data.h"
+
+const char * ec_bin(char * str, size_t size, uint64_t value, int32_t digits);
+const char * ec_fop_name(int32_t id);
+void ec_trace(const char * event, ec_fop_data_t * fop, const char * fmt, ...);
+uint64_t ec_itransform(ec_t * ec, int32_t idx, uint64_t offset);
+uint64_t ec_deitransform(ec_t * ec, int32_t * idx, uint64_t offset);
+int32_t ec_bits_count(uint64_t n);
+int32_t ec_bits_index(uint64_t n);
+int32_t ec_bits_consume(uint64_t * n);
+size_t ec_iov_copy_to(void * dst, struct iovec * vector, int32_t count,
+                      off_t offset, size_t size);
+
+int32_t ec_dict_set_number(dict_t * dict, char * key, uint64_t value);
+int32_t ec_dict_del_number(dict_t * dict, char * key, uint64_t * value);
+
+int32_t ec_loc_parent(xlator_t * xl, loc_t * loc, loc_t * parent,
+                      char ** name);
+int32_t ec_loc_prepare(xlator_t * xl, loc_t * loc, inode_t * inode,
+                       struct iatt * iatt);
+
+int32_t ec_loc_from_fd(xlator_t * xl, loc_t * loc, fd_t * fd);
+int32_t ec_loc_from_loc(xlator_t * xl, loc_t * dst, loc_t * src);
+
+void ec_owner_set(call_frame_t * frame, void * owner);
+void ec_owner_copy(call_frame_t * frame, gf_lkowner_t * owner);
+
+ec_inode_t * __ec_inode_get(inode_t * inode, xlator_t * xl);
+ec_inode_t * ec_inode_get(inode_t * inode, xlator_t * xl);
+ec_fd_t * __ec_fd_get(fd_t * fd, xlator_t * xl);
+ec_fd_t * ec_fd_get(fd_t * fd, xlator_t * xl);
+
+size_t ec_adjust_offset(ec_t * ec, off_t * offset, int32_t scale);
+size_t ec_adjust_size(ec_t * ec, size_t size, int32_t scale);
+
+#endif /* __EC_HELPERS_H__ */