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305db981d4
This is inspired by the [Coccinelle](http://coccinelle.lip6.fr/) usage in systemd. I also took it a bit further and added infrastructure to have spatches which should never apply. This acts as a blacklist. The reason to do the latter is that coccinelle is *way* more powerful than the regular expresssions we have in `make syntax-check`. I started with blacklisting `g_error_free()` directly. The reason that's bad is it leaves a dangling pointer. Closes: #754 Approved by: jlebon
73 lines
2.0 KiB
C
73 lines
2.0 KiB
C
/* -*- mode: C; c-file-style: "gnu"; indent-tabs-mode: nil; -*-
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*
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* Copyright (C) 2013 Colin Walters <walters@verbum.org>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the
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* Free Software Foundation, Inc., 59 Temple Place - Suite 330,
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* Boston, MA 02111-1307, USA.
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*/
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#include "config.h"
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#include "ostree-rollsum.h"
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#include "libglnx.h"
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int
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main (int argc, char **argv)
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{
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g_autoptr(GError) local_error = NULL;
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GError **error = &local_error;
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GBytes *from_bytes = NULL;
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GBytes *to_bytes = NULL;
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const char *from_path;
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const char *to_path;
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OstreeRollsumMatches *matches;
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GMappedFile *mfile;
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g_setenv ("GIO_USE_VFS", "local", TRUE);
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if (argc < 3)
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return 1;
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from_path = argv[1];
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to_path = argv[2];
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mfile = g_mapped_file_new (from_path, FALSE, error);
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if (!mfile)
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goto out;
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from_bytes = g_mapped_file_get_bytes (mfile);
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g_mapped_file_unref (mfile);
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mfile = g_mapped_file_new (to_path, FALSE, error);
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if (!mfile)
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goto out;
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to_bytes = g_mapped_file_get_bytes (mfile);
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g_mapped_file_unref (mfile);
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matches = _ostree_compute_rollsum_matches (from_bytes, to_bytes);
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g_printerr ("rollsum crcs=%u bufs=%u total=%u matchsize=%llu\n",
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matches->crcmatches,
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matches->bufmatches,
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matches->total, (unsigned long long)matches->match_size);
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out:
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if (local_error)
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{
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g_printerr ("%s\n", local_error->message);
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return 1;
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}
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return 0;
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}
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