Tizen 2.1 basesubmit/tizen_2.2/20130710.072957submit/tizen_2.1/20130423.103612accepted/tizen_2.1/20130423.1515012.1b_releasetizen_2.1

1 files changed, 89 insertions, 0 deletions

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+/* ----------------------------------------------------------------------- *
+ *   
+ *   Copyright 1996-2009 The NASM Authors - All Rights Reserved
+ *   See the file AUTHORS included with the NASM distribution for
+ *   the specific copyright holders.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following
+ *   conditions are met:
+ *
+ *   * Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *   * 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 COPYRIGHT HOLDERS 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 COPYRIGHT OWNER 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.
+ *
+ * ----------------------------------------------------------------------- */
+
+#ifndef NASM_RAA_H
+#define NASM_RAA_H 1
+
+#include "compiler.h"
+
+/*
+ * Routines to manage a dynamic random access array of int64_ts which
+ * may grow in size to be more than the largest single malloc'able
+ * chunk.
+ */
+
+#define RAA_BLKSHIFT	15      /* 2**this many longs allocated at once */
+#define RAA_BLKSIZE	(1 << RAA_BLKSHIFT)
+#define RAA_LAYERSHIFT	15      /* 2**this many _pointers_ allocated */
+#define RAA_LAYERSIZE	(1 << RAA_LAYERSHIFT)
+
+typedef struct RAA RAA;
+typedef union RAA_UNION RAA_UNION;
+typedef struct RAA_LEAF RAA_LEAF;
+typedef struct RAA_BRANCH RAA_BRANCH;
+
+struct RAA {
+    /*
+     * Number of layers below this one to get to the real data. 0
+     * means this structure is a leaf, holding RAA_BLKSIZE real
+     * data items; 1 and above mean it's a branch, holding
+     * RAA_LAYERSIZE pointers to the next level branch or leaf
+     * structures.
+     */
+    int layers;
+
+    /*
+     * Number of real data items spanned by one position in the
+     * `data' array at this level. This number is 0 trivially, for
+     * a leaf (level 0): for a level 1 branch it should be
+     * RAA_BLKSHIFT, and for a level 2 branch it's
+     * RAA_LAYERSHIFT+RAA_BLKSHIFT.
+     */
+    int shift;
+
+    union RAA_UNION {
+        struct RAA_LEAF {
+            int64_t data[RAA_BLKSIZE];
+        } l;
+        struct RAA_BRANCH {
+            struct RAA *data[RAA_LAYERSIZE];
+        } b;
+    } u;
+};
+
+struct RAA *raa_init(void);
+void raa_free(struct RAA *);
+int64_t raa_read(struct RAA *, int32_t);
+struct RAA *raa_write(struct RAA *r, int32_t posn, int64_t value);
+
+#endif                          /* NASM_RAA_H */