[svn-r12605] Description:

    Break out a bunch of the misc. routines that were in src/H5.c into more
specific modules.

    Add optimized fletcher32 checksum routine, for checksumming metadata as
well as raw data.

Tested On:
    Linux/32 2.6 (chicago)
    Linux/64 2.6 (chicago2)
    Will test further after checkin...

1 files changed, 194 insertions, 0 deletions

diff --git a/test/tchecksum.c b/test/tchecksum.c
new file mode 100644
index 0000000..ff49294
--- /dev/null
+++ b/test/tchecksum.c
@@ -0,0 +1,194 @@
+/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
+ * Copyright by the Board of Trustees of the University of Illinois.         *
+ * All rights reserved.                                                      *
+ *                                                                           *
+ * This file is part of HDF5.  The full HDF5 copyright notice, including     *
+ * terms governing use, modification, and redistribution, is contained in    *
+ * the files COPYING and Copyright.html.  COPYING can be found at the root   *
+ * of the source code distribution tree; Copyright.html can be found at the  *
+ * root level of an installed copy of the electronic HDF5 document set and   *
+ * is linked from the top-level documents page.  It can also be found at     *
+ * http://hdf.ncsa.uiuc.edu/HDF5/doc/Copyright.html.  If you do not have     *
+ * access to either file, you may request a copy from hdfhelp@ncsa.uiuc.edu. *
+ * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
+
+/*-------------------------------------------------------------------------
+ *
+ * Created:		tchecksum.c
+ *			Aug 21 2006
+ *			Quincey Koziol <koziol@hdfgroup.org>
+ *
+ * Purpose:		Test internal checksum routine(s)
+ *
+ *-------------------------------------------------------------------------
+ */
+
+/***********/
+/* Headers */
+/***********/
+#include "testhdf5.h"
+
+/**********/
+/* Macros */
+/**********/
+#define BUF_LEN 3093    /* No particular value */
+
+/*******************/
+/* Local variables */
+/*******************/
+uint8_t large_buf[BUF_LEN];
+
+
+/****************************************************************
+**
+**  test_chksum_size_one(): Checksum 1 byte buffer
+**
+****************************************************************/
+static void
+test_chksum_size_one(void)
+{
+    uint8_t buf[1] = {23};      /* Buffer to checksum */
+    uint32_t chksum;    /* Checksum value */
+
+    /* Buffer w/real data */
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0x17001700, "H5_fletcher32");
+
+    /* Buffer w/zero(s) for data */
+    HDmemset(buf, 0, sizeof(buf));
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0xffffffff, "H5_fletcher32");
+} /* test_chksum_size_one() */
+
+
+/****************************************************************
+**
+**  test_chksum_size_two(): Checksum 2 byte buffer
+**
+****************************************************************/
+static void
+test_chksum_size_two(void)
+{
+    uint8_t buf[2] = {23, 187};         /* Buffer to checksum */
+    uint32_t chksum;                    /* Checksum value */
+
+    /* Buffer w/real data */
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0x17bb17bb, "H5_fletcher32");
+
+    /* Buffer w/zero(s) for data */
+    HDmemset(buf, 0, sizeof(buf));
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0xffffffff, "H5_fletcher32");
+} /* test_chksum_size_two() */
+
+
+/****************************************************************
+**
+**  test_chksum_size_three(): Checksum 3 byte buffer
+**
+****************************************************************/
+static void
+test_chksum_size_three(void)
+{
+    uint8_t buf[3] = {23, 187, 98};     /* Buffer to checksum */
+    uint32_t chksum;                    /* Checksum value */
+
+    /* Buffer w/real data */
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0x917679bb, "H5_fletcher32");
+
+    /* Buffer w/zero(s) for data */
+    HDmemset(buf, 0, sizeof(buf));
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0xffffffff, "H5_fletcher32");
+} /* test_chksum_size_three() */
+
+
+/****************************************************************
+**
+**  test_chksum_size_four(): Checksum 4 byte buffer
+**
+****************************************************************/
+static void
+test_chksum_size_four(void)
+{
+    uint8_t buf[4] = {23, 187, 98, 217};/* Buffer to checksum */
+    uint32_t chksum;                    /* Checksum value */
+
+    /* Buffer w/real data */
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0x924f7a94, "H5_fletcher32");
+
+    /* Buffer w/zero(s) for data */
+    HDmemset(buf, 0, sizeof(buf));
+    chksum = H5_fletcher32(buf, sizeof(buf));
+    VERIFY(chksum, 0xffffffff, "H5_fletcher32");
+} /* test_chksum_size_four() */
+
+
+/****************************************************************
+**
+**  test_chksum_large(): Checksum larger buffer
+**
+****************************************************************/
+static void
+test_chksum_large(void)
+{
+    uint32_t chksum;            /* Checksum value */
+    size_t u;                   /* Local index variable */
+
+    /* Initialize buffer w/known data */
+    for(u = 0; u < BUF_LEN; u++)
+        large_buf[u] = u * 3;
+
+    /* Buffer w/real data */
+    chksum = H5_fletcher32(large_buf, sizeof(large_buf));
+    VERIFY(chksum, 0x85b4e2a, "H5_fletcher32");
+
+    /* Buffer w/zero(s) for data */
+    HDmemset(large_buf, 0, sizeof(large_buf));
+    chksum = H5_fletcher32(large_buf, sizeof(large_buf));
+    VERIFY(chksum, 0xffffffff, "H5_fletcher32");
+} /* test_chksum_large() */
+
+
+/****************************************************************
+**
+**  test_checksum(): Main checksum testing routine.
+**
+****************************************************************/
+void
+test_checksum(void)
+{
+    /* Output message about test being performed */
+    MESSAGE(5, ("Testing checksum algorithm\n"));
+
+    /* Various checks for fletcher32 checksum algorithm */
+    test_chksum_size_one();		/* Test buffer w/only 1 byte */
+    test_chksum_size_two();		/* Test buffer w/only 2 bytes */
+    test_chksum_size_three();		/* Test buffer w/only 3 bytes */
+    test_chksum_size_four();		/* Test buffer w/only 4 bytes */
+    test_chksum_large();		/* Test buffer w/larger # of bytes */
+
+} /* test_checksum() */
+
+
+/*-------------------------------------------------------------------------
+ * Function:	cleanup_checksum
+ *
+ * Purpose:	Cleanup temporary test files
+ *
+ * Return:	none
+ *
+ * Programmer:	Quincey Koziol
+ *              August 21, 2006
+ *
+ *-------------------------------------------------------------------------
+ */
+void
+cleanup_checksum(void)
+{
+    /* no file to clean */
+}
+