1 files changed, 96 insertions, 0 deletions
diff --git a/subversion/libsvn_delta/delta.h b/subversion/libsvn_delta/delta.h
new file mode 100644
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+++ b/subversion/libsvn_delta/delta.h
@@ -0,0 +1,96 @@
+/*
+ * delta.h:  private delta library things
+ *
+ * ====================================================================
+ *    Licensed to the Apache Software Foundation (ASF) under one
+ *    or more contributor license agreements.  See the NOTICE file
+ *    distributed with this work for additional information
+ *    regarding copyright ownership.  The ASF licenses this file
+ *    to you under the Apache License, Version 2.0 (the
+ *    "License"); you may not use this file except in compliance
+ *    with the License.  You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *    Unless required by applicable law or agreed to in writing,
+ *    software distributed under the License is distributed on an
+ *    "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ *    KIND, either express or implied.  See the License for the
+ *    specific language governing permissions and limitations
+ *    under the License.
+ * ====================================================================
+ */
+
+/* ==================================================================== */
+
+
+#include <apr_pools.h>
+#include <apr_hash.h>
+
+#include "svn_delta.h"
+
+#ifndef SVN_LIBSVN_DELTA_H
+#define SVN_LIBSVN_DELTA_H
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif /* __cplusplus */
+
+
+/* Private interface for text deltas. */
+
+/* The standard size of one svndiff window. */
+
+#define SVN_DELTA_WINDOW_SIZE 102400
+
+
+/* Context/baton for building an operation sequence. */
+
+typedef struct svn_txdelta__ops_baton_t {
+  int num_ops;                  /* current number of ops */
+  int src_ops;                  /* current number of source copy ops */
+  int ops_size;                 /* number of ops allocated */
+  svn_txdelta_op_t *ops;        /* the operations */
+
+  svn_stringbuf_t *new_data;    /* any new data used by the operations */
+} svn_txdelta__ops_baton_t;
+
+
+/* Insert a delta op into the delta window being built via BUILD_BATON. If
+   OPCODE is svn_delta_new, bytes from NEW_DATA are copied into the window
+   data and OFFSET is ignored.  Otherwise NEW_DATA is ignored. All
+   allocations are performed in POOL. */
+void svn_txdelta__insert_op(svn_txdelta__ops_baton_t *build_baton,
+                            enum svn_delta_action opcode,
+                            apr_size_t offset,
+                            apr_size_t length,
+                            const char *new_data,
+                            apr_pool_t *pool);
+
+/* Remove / truncate the last delta ops spanning the last MAX_LEN bytes
+   from the delta window being built via BUILD_BATON starting.  Return the
+   number of bytes that were actually removed. */
+apr_size_t
+svn_txdelta__remove_copy(svn_txdelta__ops_baton_t *build_baton,
+                         apr_size_t max_len);
+
+/* Allocate a delta window from POOL. */
+svn_txdelta_window_t *
+svn_txdelta__make_window(const svn_txdelta__ops_baton_t *build_baton,
+                         apr_pool_t *pool);
+
+
+/* Create xdelta window data. Allocate temporary data from POOL. */
+void svn_txdelta__xdelta(svn_txdelta__ops_baton_t *build_baton,
+                         const char *start,
+                         apr_size_t source_len,
+                         apr_size_t target_len,
+                         apr_pool_t *pool);
+
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif  /* SVN_LIBSVN_DELTA_H */