1 files changed, 64 insertions, 0 deletions
diff --git a/monitor_mm.h b/monitor_mm.h
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+++ b/monitor_mm.h
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+/*
+ * Copyright 2002 Niels Provos <provos@citi.umich.edu>
+ * All rights reserved.
+ *
+ * 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 AUTHOR ``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 AUTHOR 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.
+ */
+
+#ifndef _MM_H_
+#define _MM_H_
+#include <sys/tree.h>
+
+struct mm_share {
+	RB_ENTRY(mm_share) next;
+	void *address;
+	size_t size;
+};
+
+struct mm_master {
+	RB_HEAD(mmtree, mm_share) rb_free;
+	struct mmtree rb_allocated;
+	void *address;
+	size_t size;
+
+	struct mm_master *mmalloc;	/* Used to completely share */
+
+	int write;		/* used to writing to other party */
+	int read;		/* used for reading from other party */
+};
+
+RB_PROTOTYPE(mmtree, mm_share, next, mm_compare);
+
+#define MM_MINSIZE		128
+
+#define MM_ADDRESS_END(x)	(void *)((u_char *)(x)->address + (x)->size)
+
+struct mm_master *mm_create(struct mm_master *, size_t);
+void mm_destroy(struct mm_master *);
+
+void mm_share_sync(struct mm_master **, struct mm_master **);
+
+void *mm_malloc(struct mm_master *, size_t);
+void *mm_xmalloc(struct mm_master *, size_t);
+void mm_free(struct mm_master *, void *);
+
+void mm_memvalid(struct mm_master *, void *, size_t);
+#endif /* _MM_H_ */