1 files changed, 69 insertions, 0 deletions
diff --git a/sbin/hastd/activemap.h b/sbin/hastd/activemap.h
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+++ b/sbin/hastd/activemap.h
@@ -0,0 +1,69 @@
+/*-
+ * Copyright (c) 2009-2010 The FreeBSD Foundation
+ * All rights reserved.
+ *
+ * This software was developed by Pawel Jakub Dawidek under sponsorship from
+ * the FreeBSD Foundation.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. 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 AUTHORS 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 AUTHORS 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.
+ *
+ * $FreeBSD$
+ */
+
+#ifndef	_ACTIVEMAP_H_
+#define	_ACTIVEMAP_H_
+
+#include <stdbool.h>
+#include <stdint.h>
+
+struct activemap;
+
+int activemap_init(struct activemap **ampp, uint64_t mediasize,
+    uint32_t extentsize, uint32_t sectorsize, uint32_t keepdirty);
+void activemap_free(struct activemap *amp);
+
+bool activemap_write_start(struct activemap *amp, off_t offset, off_t length);
+bool activemap_write_complete(struct activemap *amp, off_t offset,
+    off_t length);
+bool activemap_extent_complete(struct activemap *amp, int extent);
+uint64_t activemap_ndirty(const struct activemap *amp);
+
+bool activemap_differ(const struct activemap *amp);
+size_t activemap_size(const struct activemap *amp);
+size_t activemap_ondisk_size(const struct activemap *amp);
+void activemap_copyin(struct activemap *amp, const unsigned char *buf,
+    size_t size);
+void activemap_merge(struct activemap *amp, const unsigned char *buf,
+    size_t size);
+const unsigned char *activemap_bitmap(struct activemap *amp, size_t *sizep);
+
+size_t activemap_calc_ondisk_size(uint64_t mediasize, uint32_t extentsize,
+    uint32_t sectorsize);
+
+void activemap_sync_rewind(struct activemap *amp);
+off_t activemap_sync_offset(struct activemap *amp, off_t *lengthp,
+    int *syncextp);
+bool activemap_need_sync(struct activemap *amp, off_t offset, off_t length);
+
+void activemap_dump(const struct activemap *amp);
+
+#endif	/* !_ACTIVEMAP_H_ */