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+/*= -*- c-basic-offset: 4; indent-tabs-mode: nil; -*-
+ *
+ * librsync -- the library for network deltas
+ * $Id$
+ *
+ * Copyright (C) 2000, 2001 by Martin Pool <mbp@samba.org>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public License
+ * as published by the Free Software Foundation; either version 2.1 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+
+struct rs_job {
+ int dogtag;
+
+ /** Human-readable job operation name. */
+ const char *job_name;
+
+ rs_buffers_t *stream;
+
+ /** Callback for each processing step. */
+ rs_result (*statefn)(rs_job_t *);
+
+ /** Final result of processing job. Used by rs_job_s_failed(). */
+ rs_result final_result;
+
+ /* XXX: These next two are redundant with their equivalents in the
+ * signature field. Perhaps we should get rid of them, but
+ * they're also used in the mksum operation. */
+ int block_len;
+ int strong_sum_len;
+
+ /** Signature that's either being read in, or used for
+ * generating a delta. */
+ rs_signature_t *signature;
+
+ /** Command byte currently being processed, if any. */
+ unsigned char op;
+
+ /** If in the middle of reading a signature (rs_loadsig_s_weak()),
+ * or generating a delta, this contains the weak signature. */
+ rs_weak_sum_t weak_sig;
+
+ /** If generating a delta, this is true if we have a valid weak signature and
+ * can roll it forward. */
+ int have_weak_sig;
+
+ /** Lengths of expected parameters. */
+ rs_long_t param1, param2;
+
+ struct rs_prototab_ent const *cmd;
+ rs_mdfour_t output_md4;
+
+ /** Encoding statistics. */
+ rs_stats_t stats;
+
+ /** Buffer of data left over in the scoop. Allocation is
+ * scoop_buf..scoop_alloc, and scoop_next[0..scoop_avail]
+ * contains valid data. */
+ char *scoop_buf;
+ char *scoop_next;
+ size_t scoop_alloc;
+ size_t scoop_avail;
+
+ /** If USED is >0, then buf contains that much write data to
+ * be sent out. */
+ char write_buf[16];
+ int write_len;
+
+ /** If \p copy_len is >0, then that much data should be copied
+ * through from the input. */
+ rs_long_t copy_len;
+
+ /** Copy from the basis position. */
+ rs_long_t basis_pos, basis_len;
+
+ /** Callback used to copy data from the basis into the output. */
+ rs_copy_cb *copy_cb;
+ void *copy_arg;
+};
+
+
+rs_job_t * rs_job_new(const char *, rs_result (*statefn)(rs_job_t *));
+
+void rs_job_check(rs_job_t *job);
+const rs_stats_t *rs_job_statistics(rs_job_t *);
+
+int rs_job_input_is_ending(rs_job_t *job);