1 files changed, 79 insertions, 0 deletions
diff --git a/include/erasurecode/erasurecode_helpers_ext.h b/include/erasurecode/erasurecode_helpers_ext.h
new file mode 100644
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+++ b/include/erasurecode/erasurecode_helpers_ext.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright 2014, Kevin Greenan, Tushar Gohda, All rights reserved
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * Redistributions of source code must retain the above copyright notice, this
+ * list of conditions and the following disclaimer.
+ *
+ * Redistributions in binary form must reproduce the above copyright notice, this
+ * list of conditions and the following disclaimer in the documentation and/or
+ * other materials provided with the distribution.  THIS SOFTWARE IS PROVIDED BY
+ * THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
+ * EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ * liberasurecode proprocssing helpers header
+ *
+ * vi: set noai tw=79 ts=4 sw=4:
+ */
+
+#ifndef _ERASURECODE_HELPERS_EXT_H_
+#define _ERASURECODE_HELPERS_EXT_H_
+
+#include "erasurecode_backend.h"
+#include "erasurecode_helpers.h"
+
+/* ==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~== */
+
+static inline
+void init_fragment_header(char *buf)
+{
+    fragment_header_t *header = (fragment_header_t *) buf;
+
+    header->magic = LIBERASURECODE_FRAG_HEADER_MAGIC;
+}
+
+/* ==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~== */
+
+char *alloc_fragment_buffer(int size);
+int free_fragment_buffer(char *buf);
+int get_aligned_data_size(ec_backend_t instance, int data_len);
+char *get_data_ptr_from_fragment(char *buf);
+int get_data_ptr_array_from_fragments(char **data_array, char **fragments,
+        int num_fragments);
+int get_fragment_ptr_array_from_data(char **frag_array, char **data,
+        int num_data);
+char *get_fragment_ptr_from_data_novalidate(char *buf);
+char *get_fragment_ptr_from_data(char *buf);
+uint64_t get_fragment_size(char *buf);
+int set_fragment_idx(char *buf, int idx);
+int get_fragment_idx(char *buf);
+int set_fragment_payload_size(char *buf, int size);
+int get_fragment_payload_size(char *buf);
+int set_fragment_backend_metadata_size(char *buf, int size);
+int get_fragment_backend_metadata_size(char *buf);
+int get_fragment_buffer_size(char *buf);
+int set_orig_data_size(char *buf, int orig_data_size);
+int get_orig_data_size(char *buf);
+int set_checksum(ec_checksum_type_t ct, char *buf, int blocksize);
+int get_checksum(char *buf); //TODO implement this
+int set_libec_version(char *fragment);
+int get_libec_version(char *fragment, uint32_t *ver);
+int set_backend_id(char *buf, ec_backend_id_t id);
+int get_backend_id(char *buf, ec_backend_id_t *id);
+int set_backend_version(char *buf, uint32_t version);
+int get_backend_version(char *buf, uint32_t *version);
+
+/* ==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~==~=*=~== */
+
+#endif  // _ERASURECODE_HELPERS_EXT_H_
+