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hdf5/test/accum.c
Mike McGreevy 8cc44e86a3 [svn-r19623] Purpose: 
- Fix a bug in each of the metadata accumulator source and test code
Description:
    - In accum.c test file, switch dxpl_id used in H5F_accum_*
      function calls to H5P_DATASET_XFER_DEFAULT (instead of 
      H5AC_dxpl_id), to fix compilation on windows.
    - Changed boundary checking from <= to < when checking
      if a read from disk with overlapping dirty metadata in the 
      accumulator has the read ending such that it aligns exactly
      with the dirty accumulator (line 234 of H5Faccum.c).
Tested:
    - h5committested
2010-10-18 15:46:08 -05:00

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/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* 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://hdfgroup.org/HDF5/doc/Copyright.html. If you do not have *
* access to either file, you may request a copy from help@hdfgroup.org. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
/* Programmer: Mike McGreevy
* October 7, 2010
*/
#include "h5test.h"
#define H5F_PACKAGE
#include "H5Fpkg.h"
#include "H5FDprivate.h"
#include "H5Iprivate.h"
/* Filename */
#define FILENAME "accum.h5"
/* "big" I/O test values */
#define BIG_BUF_SIZE (6 * 1024 * 1024)
/* Random I/O test values */
#define RANDOM_BUF_SIZE (1 * 1024 * 1024)
#define MAX_RANDOM_SEGMENTS (5 * 1024)
#define RAND_SEG_LEN (1024)
#define RANDOM_BASE_OFF (1024 * 1024)
/* Make file global to all tests */
H5F_t * f = NULL;
/* Function Prototypes */
unsigned test_write_read(void);
unsigned test_write_read_nonacc_front(void);
unsigned test_write_read_nonacc_end(void);
unsigned test_accum_overlap(void);
unsigned test_accum_overlap_clean(void);
unsigned test_accum_overlap_size(void);
unsigned test_accum_non_overlap_size(void);
unsigned test_accum_adjust(void);
unsigned test_read_after(void);
unsigned test_free(void);
unsigned test_big(void);
unsigned test_random_write(void);
/* Helper Function Prototypes */
void accum_printf(void);
/* Private Test H5Faccum Function Wrappers */
#define accum_write(a,s,b) H5F_block_write(f, H5FD_MEM_DEFAULT, (haddr_t)(a), (size_t)(s), H5P_DATASET_XFER_DEFAULT, (b))
#define accum_read(a,s,b) H5F_block_read(f, H5FD_MEM_DEFAULT, (haddr_t)(a), (size_t)(s), H5P_DATASET_XFER_DEFAULT, (b))
#define accum_free(a,s) H5F_accum_free(f, H5P_DATASET_XFER_DEFAULT, H5FD_MEM_DEFAULT, (haddr_t)(a), (hsize_t)(s))
#define accum_flush() H5F_accum_flush(f, H5P_DATASET_XFER_DEFAULT)
#define accum_reset() H5F_accum_reset(f, H5P_DATASET_XFER_DEFAULT, TRUE)
/* ================= */
/* Main Test Routine */
/* ================= */
/*-------------------------------------------------------------------------
* Function: main
*
* Purpose: Test the metadata accumulator code
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Mike McGreevy
* October 7, 2010
*
*-------------------------------------------------------------------------
*/
int
main(void)
{
unsigned nerrors = 0; /* track errors */
hid_t fid = -1;
/* Test Setup */
puts("Testing the metadata accumulator");
/* Create a test file */
if((fid = H5Fcreate(FILENAME, H5F_ACC_TRUNC, H5P_DEFAULT, H5P_DEFAULT)) < 0) FAIL_STACK_ERROR
/* Get H5F_t * to internal file structure */
if(NULL == (f = (H5F_t *)H5I_object(fid))) FAIL_STACK_ERROR
/* We'll be writing lots of garbage data, so extend the
file a ways. 10MB should do. */
if(H5FD_set_eoa(f->shared->lf, H5FD_MEM_DEFAULT, (haddr_t)(1024*1024*10)) < 0) FAIL_STACK_ERROR
/* Reset metadata accumulator for the file */
if(accum_reset() < 0) FAIL_STACK_ERROR
/* Test Functions */
nerrors += test_write_read();
nerrors += test_write_read_nonacc_front();
nerrors += test_write_read_nonacc_end();
nerrors += test_accum_overlap();
nerrors += test_accum_overlap_clean();
nerrors += test_accum_overlap_size();
nerrors += test_accum_non_overlap_size();
nerrors += test_accum_adjust();
nerrors += test_read_after();
nerrors += test_free();
nerrors += test_big();
nerrors += test_random_write();
/* End of test code, close and delete file */
if(H5Fclose(fid) < 0) TEST_ERROR
HDremove(FILENAME);
if(nerrors)
goto error;
puts("All metadata accumulator tests passed.");
return 0;
error:
puts("*** TESTS FAILED ***");
return 1;
} /* end main() */
/* ============================= */
/* Individual Unit Test Routines */
/* ============================= */
/*-------------------------------------------------------------------------
* Function: test_write_read
*
* Purpose: Simple test to write to then read from metadata accumulator.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Mike McGreevy
* October 7, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_write_read(void)
{
int i = 0;
int *write_buf, *read_buf;
TESTING("simple write/read to/from metadata accumulator");
/* Allocate buffers */
write_buf = (int *)HDmalloc(1024 * sizeof(int));
HDassert(write_buf);
read_buf = (int *)HDcalloc(1024, sizeof(int));
HDassert(read_buf);
/* Fill buffer with data, zero out read buffer */
for(i = 0; i < 1024; i++)
write_buf[i] = i + 1;
/* Do a simple write/read/verify of data */
/* Write 1KB at Address 0 */
if(accum_write(0, 1024, write_buf) < 0) FAIL_STACK_ERROR;
if(accum_read(0, 1024, read_buf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(write_buf, read_buf, 1024) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(write_buf);
HDfree(read_buf);
return 0;
error:
/* Release memory */
HDfree(write_buf);
HDfree(read_buf);
return 1;
} /* test_write_read */
/*-------------------------------------------------------------------------
* Function: test_write_read_nonacc_front
*
* Purpose: Simple test to write to then read from before metadata accumulator.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Allen Byrne
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_write_read_nonacc_front(void)
{
int i = 0;
int *write_buf, *read_buf;
TESTING("simple write/read to/from before metadata accumulator");
/* Allocate buffers */
write_buf = (int *)HDmalloc(2048 * sizeof(int));
HDassert(write_buf);
read_buf = (int *)HDcalloc(2048, sizeof(int));
HDassert(read_buf);
/* Fill buffer with data, zero out read buffer */
for(i = 0; i < 2048; i++)
write_buf[i] = i + 1;
/* Do a simple write/read/verify of data */
/* Write 1KB at Address 0 */
if(accum_write(0, 1024, write_buf) < 0) FAIL_STACK_ERROR;
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
if(accum_write(1024, 1024, write_buf) < 0) FAIL_STACK_ERROR;
if(accum_read(0, 1024, read_buf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(write_buf, read_buf, 1024) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(write_buf);
HDfree(read_buf);
return 0;
error:
/* Release memory */
HDfree(write_buf);
HDfree(read_buf);
return 1;
} /* test_write_read */
/*-------------------------------------------------------------------------
* Function: test_write_read_nonacc_end
*
* Purpose: Simple test to write to then read from after metadata accumulator.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Allen Byrne
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_write_read_nonacc_end(void)
{
int i = 0;
int *write_buf, *read_buf;
TESTING("simple write/read to/from after metadata accumulator");
/* Allocate buffers */
write_buf = (int *)HDmalloc(2048 * sizeof(int));
HDassert(write_buf);
read_buf = (int *)HDcalloc(2048, sizeof(int));
HDassert(read_buf);
/* Fill buffer with data, zero out read buffer */
for(i = 0; i < 2048; i++)
write_buf[i] = i + 1;
/* Do a simple write/read/verify of data */
/* Write 1KB at Address 0 */
if(accum_write(1024, 1024, write_buf) < 0) FAIL_STACK_ERROR;
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
if(accum_write(0, 1024, write_buf) < 0) FAIL_STACK_ERROR;
if(accum_read(1024, 1024, read_buf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(write_buf, read_buf, 1024) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(write_buf);
HDfree(read_buf);
return 0;
error:
/* Release memory */
HDfree(write_buf);
HDfree(read_buf);
return 1;
} /* test_write_read */
/*-------------------------------------------------------------------------
* Function: test_free
*
* Purpose: Simple test to free metadata accumulator.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Raymond Lu
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_free(void)
{
int i = 0;
int32_t *wbuf = NULL;
int32_t *rbuf = NULL;
int32_t *expect = NULL;
TESTING("simple freeing metadata accumulator");
/* Write and free the whole accumulator. */
wbuf = (int32_t *)HDmalloc(256 * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int32_t *)HDmalloc(256 * sizeof(int32_t));
HDassert(rbuf);
expect = (int32_t *)HDmalloc(256 * sizeof(int32_t));
HDassert(expect);
/* Fill buffer with data */
for(i = 0; i < 256; i++)
wbuf[i] = (int32_t)(i + 1);
if(accum_write(0, 256 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_free(0, 256 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Free an empty accumulator */
if(accum_free(0, 256 * 1024 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Write second quarter of the accumulator */
if(accum_write(64 * sizeof(int32_t), 64 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
/* Free the second quarter of the accumulator, the requested area
* is bigger than the data region on the right side. */
if(accum_free(64 * sizeof(int32_t), 65 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Write half of the accumulator. */
if(accum_write(0, 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
/* Free the first block of 4B */
if(accum_free(0, sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(1 * sizeof(int32_t), 127 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf + 1, rbuf, 127 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Free the block of 4B at 127*4B */
if(accum_free(127 * sizeof(int32_t), sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(1 * sizeof(int32_t), 126 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf + 1, rbuf, 126 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Free the block of 4B at 2*4B */
if(accum_free(2 * sizeof(int32_t), sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(1 * sizeof(int32_t), 1 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf + 1, rbuf, 1 * sizeof(int32_t)) != 0) TEST_ERROR;
if(accum_read(3 * sizeof(int32_t), 124 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf + 3, rbuf, 124 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Test freeing section that overlaps the start of the accumulator and is
* entirely before dirty section */
if(accum_write(64 * sizeof(int32_t), 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 64, wbuf, 128 * sizeof(int32_t));
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_write(68 * sizeof(int32_t), 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 68, wbuf, 4 * sizeof(int32_t));
if(accum_free(62 * sizeof(int32_t), 4 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(66 * sizeof(int32_t), 126 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(expect + 66, rbuf, 126 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Test freeing section that overlaps the start of the accumulator and
* completely contains dirty section */
if(accum_write(64 * sizeof(int32_t), 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 64, wbuf, 128 * sizeof(int32_t));
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_write(68 * sizeof(int32_t), 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 68, wbuf, 4 * sizeof(int32_t));
if(accum_free(62 * sizeof(int32_t), 16 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(78 * sizeof(int32_t), 114 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(expect + 78, rbuf, 114 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Test freeing section completely contained in accumulator and is entirely
* before dirty section */
if(accum_write(64 * sizeof(int32_t), 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 64, wbuf, 128 * sizeof(int32_t));
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_write(72 * sizeof(int32_t), 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 72, wbuf, 4 * sizeof(int32_t));
if(accum_free(66 * sizeof(int32_t), 4 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(70 * sizeof(int32_t), 122 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(expect + 70, rbuf, 122 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Test freeing section completely contained in accumulator, starts before
* dirty section, and ends in dirty section */
if(accum_write(64 * sizeof(int32_t), 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 64, wbuf, 128 * sizeof(int32_t));
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_write(72 * sizeof(int32_t), 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 72, wbuf, 4 * sizeof(int32_t));
if(accum_free(70 * sizeof(int32_t), 4 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(74 * sizeof(int32_t), 118 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(expect + 74, rbuf, 118 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Test freeing section completely contained in accumulator and completely
* contains dirty section */
if(accum_write(64 * sizeof(int32_t), 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 64, wbuf, 128 * sizeof(int32_t));
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_write(72 * sizeof(int32_t), 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 72, wbuf, 4 * sizeof(int32_t));
if(accum_free(70 * sizeof(int32_t), 8 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(78 * sizeof(int32_t), 114 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(expect + 78, rbuf, 114 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Test freeing section completely contained in accumulator, starts at start
* of dirty section, and ends in dirty section */
if(accum_write(64 * sizeof(int32_t), 128 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 64, wbuf, 128 * sizeof(int32_t));
if(accum_flush() < 0) FAIL_STACK_ERROR;
if(accum_write(72 * sizeof(int32_t), 8 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
HDmemcpy(expect + 72, wbuf, 8 * sizeof(int32_t));
if(accum_free(72 * sizeof(int32_t), 4 * sizeof(int32_t)) < 0) FAIL_STACK_ERROR;
/* Check that the accumulator still contains the correct data */
if(accum_read(76 * sizeof(int32_t), 116 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(expect + 76, rbuf, 116 * sizeof(int32_t)) != 0) TEST_ERROR;
HDfree(wbuf);
HDfree(rbuf);
HDfree(expect);
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
return 0;
error:
HDfree(wbuf);
HDfree(rbuf);
HDfree(expect);
return 1;
} /* test_free */
/*-------------------------------------------------------------------------
* Function: test_accum_overlap
*
* Purpose: This test will write a series of pieces of data
* to the accumulator with the goal of overlapping
* the writes in various different ways.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Mike McGreevy
* October 7, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_accum_overlap(void)
{
int i = 0;
int32_t *wbuf, *rbuf;
TESTING("overlapping write to metadata accumulator");
/* Allocate buffers */
wbuf = (int32_t *)HDmalloc(4096 * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int32_t *)HDcalloc(4096, sizeof(int32_t));
HDassert(rbuf);
/* Case 1: No metadata in accumulator */
/* Write 10 1's at address 40 */
/* @0:| 1111111111| */
/* Put some data in the accumulator initially */
for(i = 0; i < 10; i++)
wbuf[i] = 1;
if(accum_write(40, 10 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(40, 10 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 10 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 2: End of new piece aligns with start of accumulated data */
/* Write 5 2's at address 20 */
/* @0:| 222221111111111| */
for(i = 0; i < 5; i++)
wbuf[i] = 2;
if(accum_write(20, 5 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(20, 5 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 5 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 3: Start of new piece aligns with start of accumulated data */
/* Write 3 3's at address 20 */
/* @0:| 333221111111111| */
for(i = 0; i < 3; i++)
wbuf[i] = 3;
if(accum_write(20, 3 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(20, 3 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 3 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 4: New piece overlaps start of accumulated data */
/* Write 5 4's at address 8 */
/* @0:| 444443221111111111| */
for(i = 0; i < 5; i++)
wbuf[i] = 4;
if(accum_write(8, 5 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(8, 5 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 5 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 5: New piece completely within accumulated data */
/* Write 4 5's at address 48 */
/* @0:| 444443221155551111| */
for(i = 0; i < 4; i++)
wbuf[i] = 5;
if(accum_write(48, 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(48, 4 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 4 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 6: End of new piece aligns with end of accumulated data */
/* Write 3 6's at address 68 */
/* @0:| 444443221155551666| */
for(i = 0; i < 3; i++)
wbuf[i] = 6;
if(accum_write(68, 3 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(68, 3 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 3 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 7: New piece overlaps end of accumulated data */
/* Write 5 7's at address 76 */
/* @0:| 4444432211555516677777| */
for(i = 0; i < 5; i++)
wbuf[i] = 7;
if(accum_write(76, 5 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(76, 5 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 5 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 8: Start of new piece aligns with end of accumulated data */
/* Write 3 8's at address 96 */
/* @0:| 4444432211555516677777888| */
for(i = 0; i < 3; i++)
wbuf[i] = 8;
if(accum_write(96, 3 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(96, 3 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 3 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Set up expected data buffer and verify contents of
accumulator as constructed by cases 1-8, above */
for(i = 0; i < 5; i++)
wbuf[i] = 4;
for(i = 5; i < 6; i++)
wbuf[i] = 3;
for(i = 6; i < 8; i++)
wbuf[i] = 2;
for(i = 8; i < 10; i++)
wbuf[i] = 1;
for(i = 10; i < 14; i++)
wbuf[i] = 5;
for(i = 14; i < 15; i++)
wbuf[i] = 1;
for(i = 15; i < 17; i++)
wbuf[i] = 6;
for(i = 17; i < 22; i++)
wbuf[i] = 7;
for(i = 22; i < 25; i++)
wbuf[i] = 8;
if(accum_read(8, 25 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 25 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 9: New piece completely before accumulated data */
/* Write 1 9 at address 0 */
/* @0:|9 4444432211555516677777888| */
for(i = 0; i < 1; i++)
wbuf[i] = 9;
if(accum_write(0, 1 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(0, 1 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 1 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 10: New piece completely after accumulated data */
/* Write 4 3's at address 116 */
/* @0:|9 4444432211555516677777888 3333| */
for(i = 0; i < 4; i++)
wbuf[i] = 3;
if(accum_write(116, 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(116, 4 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 4 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 11: New piece completely overlaps accumulated data */
/* Write 6 4's at address 112 */
/* @0:|9 4444432211555516677777888 444444| */
for(i = 0; i < 6; i++)
wbuf[i] = 4;
if(accum_write(112, 6 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(112, 6 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 6 * sizeof(int32_t)) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 1;
} /* test_accum_overlap */
/*-------------------------------------------------------------------------
* Function: test_accum_overlap_clean
*
* Purpose: This test will write a series of pieces of data
* to the accumulator with the goal of overlapping
* the writes in various different ways, with clean
* areas in the accumulator.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Neil Fortner
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_accum_overlap_clean(void)
{
int i = 0;
int32_t *wbuf, *rbuf;
TESTING("overlapping write to partially clean metadata accumulator");
/* Allocate buffers */
wbuf = (int32_t *)HDmalloc(4096 * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int32_t *)HDcalloc(4096, sizeof(int32_t));
HDassert(rbuf);
/* Case 1: No metadata in accumulator */
/* Write 10 1's at address 40 */
/* @0:| 1111111111| */
/* Put some data in the accumulator initially */
for(i = 0; i < 10; i++)
wbuf[i] = 1;
if(accum_write(40, 10 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(40, 10 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 10 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 2: End of new piece aligns with start of clean accumulated data */
/* Write 5 2's at address 20 */
/* @0:| 222221111111111| */
if(accum_flush() < 0) FAIL_STACK_ERROR;
for(i = 0; i < 5; i++)
wbuf[i] = 2;
if(accum_write(20, 5 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(20, 5 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 5 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 3: Start of new piece aligns with start of accumulated data,
* completely encloses dirty section of accumulator */
/* Write 6 3's at address 20 */
/* @0:| 333333111111111| */
for(i = 0; i < 6; i++)
wbuf[i] = 3;
if(accum_write(20, 6 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(20, 6 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 6 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 4: New piece completely within accumulated data, overlaps
* end of dirty section of accumulator */
/* Write 2 4's at address 40 */
/* @0:| 333334411111111| */
for(i = 0; i < 2; i++)
wbuf[i] = 4;
if(accum_write(40, 2 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(40, 2 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 2 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 5: New piece completely within accumulated data, completely
* after dirty section of accumulator */
/* Write 2 5's at address 52 */
/* @0:| 333334415511111| */
for(i = 0; i < 2; i++)
wbuf[i] = 5;
if(accum_write(52, 2 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(52, 2 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 2 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 6: New piece completely within clean accumulated data */
/* Write 3 6's at address 44 */
/* @0:| 333334666511111| */
if(accum_flush() < 0) FAIL_STACK_ERROR;
for(i = 0; i < 3; i++)
wbuf[i] = 6;
if(accum_write(44, 3 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(44, 3 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 3 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 7: New piece overlaps start of clean accumulated data */
/* Write 2 7's at address 16 */
/* @0:| 7733334666511111| */
if(accum_flush() < 0) FAIL_STACK_ERROR;
for(i = 0; i < 2; i++)
wbuf[i] = 7;
if(accum_write(16, 2 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(16, 2 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 2 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 8: New piece overlaps start of accumulated data, completely
* encloses dirty section of accumulator */
/* Write 4 8's at address 12 */
/* @0:| 88883334666511111| */
for(i = 0; i < 4; i++)
wbuf[i] = 8;
if(accum_write(12, 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(12, 4 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 4 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 9: Start of new piece aligns with end of clean accumulated data */
/* Write 3 9's at address 80 */
/* @0:| 88883334666511111999| */
if(accum_flush() < 0) FAIL_STACK_ERROR;
for(i = 0; i < 3; i++)
wbuf[i] = 9;
if(accum_write(80, 3 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(80, 3 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 3 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 10: New piece overlaps end of clean accumulated data */
/* Write 3 2's at address 88 */
/* @0:| 888833346665111119922| */
if(accum_flush() < 0) FAIL_STACK_ERROR;
for(i = 0; i < 2; i++)
wbuf[i] = 2;
if(accum_write(88, 2 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(88, 2 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 2 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 11: New piece overlaps end of accumulated data, completely encloses
* dirty section of accumulator */
/* Write 4 7's at address 84 */
/* @0:| 8888333466651111197777| */
for(i = 0; i < 4; i++)
wbuf[i] = 7;
if(accum_write(84, 4 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(84, 4 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 4 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Set up expected data buffer and verify contents of
accumulator as constructed by cases 1-11, above */
for(i = 0; i < 4; i++)
wbuf[i] = 8;
for(i = 4; i < 7; i++)
wbuf[i] = 3;
for(i = 7; i < 8; i++)
wbuf[i] = 4;
for(i = 8; i < 11; i++)
wbuf[i] = 6;
for(i = 11; i < 12; i++)
wbuf[i] = 5;
for(i = 12; i < 17; i++)
wbuf[i] = 1;
for(i = 17; i < 18; i++)
wbuf[i] = 9;
for(i = 18; i < 22; i++)
wbuf[i] = 7;
if(accum_read(12, 22 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 22 * sizeof(int32_t)) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 1;
} /* test_accum_overlap_clean */
/*-------------------------------------------------------------------------
* Function: test_accum_non_overlap_size
*
* Purpose: This test will write a series of pieces of data
* to the accumulator with the goal of not overlapping
* the writes with a data size larger then the accum size.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Allen Byrne
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_accum_non_overlap_size(void)
{
int i = 0;
int32_t *wbuf, *rbuf;
TESTING("non-overlapping write to accumulator larger then accum_size");
/* Allocate buffers */
wbuf = (int *)HDmalloc(4096 * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int *)HDcalloc(4096, sizeof(int32_t));
HDassert(rbuf);
/* Case 1: No metadata in accumulator */
/* Write 10 1's at address 140 */
/* @0:| 1111111111| */
/* Put some data in the accumulator initially */
for(i = 0; i < 10; i++)
wbuf[i] = 1;
if(accum_write(140, 10 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(140, 10 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 10 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 9: New piece completely before accumulated data */
/* Write 20 9 at address 0 */
/* @0:|9 1111111111| */
for(i = 0; i < 20; i++)
wbuf[i] = 9;
if(accum_write(0, 20 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(0, 20 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 20 * sizeof(int32_t)) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 1;
} /* test_accum_non_overlap_size */
/*-------------------------------------------------------------------------
* Function: test_accum_overlap_size
*
* Purpose: This test will write a series of pieces of data
* to the accumulator with the goal of overlapping
* the writes with a data size completely overlapping
* the accumulator at both ends.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Allen Byrne
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_accum_overlap_size(void)
{
int i = 0;
int32_t *wbuf, *rbuf;
TESTING("overlapping write to accumulator larger then accum_size");
/* Allocate buffers */
wbuf = (int32_t *)HDmalloc(4096 * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int32_t *)HDcalloc(4096, sizeof(int32_t));
HDassert(rbuf);
/* Case 1: No metadata in accumulator */
/* Write 10 1's at address 64 */
/* @0:| 1111111111| */
/* Put some data in the accumulator initially */
for(i = 0; i < 10; i++)
wbuf[i] = 1;
if(accum_write(64, 10 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(64, 10 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 10 * sizeof(int32_t)) != 0) TEST_ERROR;
/* Case 9: New piece completely before accumulated data */
/* Write 72 9 at address 60 */
/* @0:|9 1111111111| */
for(i = 0; i < 72; i++)
wbuf[i] = 9;
if(accum_write(60, 72 * sizeof(int32_t), wbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(60, 72 * sizeof(int32_t), rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 72 * sizeof(int32_t)) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 1;
} /* test_accum_overlap_size */
/*-------------------------------------------------------------------------
* Function: test_accum_adjust
*
* Purpose: This test examines the various ways the accumulator might
* adjust itself as a result of data appending or prepending
* to it.
*
* This test program covers all the code in H5F_accum_adjust,
* but NOT all possible paths through said code. It only covers
* six potential paths through the function. (Again, though, each
* piece of code within an if/else statement in H5F_accum_adjust is
* covered by one of the paths in this test function). Since there
* are a ridiculous number of total possible paths through this
* function due to its large number of embedded if/else statements,
* that's certainly a lot of different test cases to write by hand.
* (Though if someone comes across this code and has some free
* time, go for it).
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Mike McGreevy
* October 11, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_accum_adjust(void)
{
int i = 0;
int s = 1048576; /* size of buffer */
int32_t *wbuf, *rbuf;
TESTING("accumulator adjustments after append/prepend of data");
/* Allocate buffers */
wbuf = (int32_t *)HDmalloc((size_t)s * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int32_t *)HDcalloc((size_t)s, sizeof(int32_t));
HDassert(rbuf);
/* Fill up write buffer */
for(i = 0; i < s; i++)
wbuf[i] = i + 1;
/* ================================================================ */
/* CASE 1: Prepending small block to large, fully dirty accumulator */
/* ================================================================ */
/* Write data to the accumulator to fill it just under 1MB (max size),
* but not quite full. This will force the accumulator to, on subsequent
* writes, a) have to adjust since it's nearly full, and b) prevent
* an increase in size because it's already at it's maximum size */
if(accum_write((1024 * 1024), (1024 * 1024) - 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a small (1KB) block that prepends to the front of the accumulator. */
/* ==> Accumulator will need more buffer space */
/* ==> Accumulator will try to resize, but see that it's getting too big */
/* ==> Size of new block is less than half maximum size of accumulator */
/* ==> New block is being prepended to accumulator */
/* ==> Accumulator is dirty, it will be flushed. */
/* ==> Dirty region overlaps region to eliminate from accumulator */
if(accum_write((1024 * 1024) - 1024, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read back and verify first write */
if(accum_read((1024 * 1024), (1024 * 1024) - 1, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, (1024 * 1024) - 1) != 0) TEST_ERROR;
/* Read back and verify second write */
if(accum_read((1024 * 1024) - 1024, 1024, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 1024) != 0) TEST_ERROR;
/* Reset accumulator for next case */
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* ================================================================ */
/* Case 2: Prepending large block to large, fully dirty accumulator */
/* ================================================================ */
/* Write data to the accumulator to fill it just under 1MB (max size),
* but not quite full. This will force the accumulator to, on subsequent
* writes, a) have to adjust since it's nearly full, and b) prevent
* an increase in size because it's already at it's maximum size */
if(accum_write((1024 * 1024), (1024 * 1024) - 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a large (just under 1MB) block to the front of the accumulator. */
/* ==> Accumulator will need more buffer space */
/* ==> Accumulator will try to resize, but see that it's getting too big */
/* ==> Size of new block is larger than half maximum size of accumulator */
/* ==> New block is being prepended to accumulator */
/* ==> Accumulator is dirty, it will be flushed. */
/* ==> Dirty region overlaps region to eliminate from accumulator */
if(accum_write(5, (1024 * 1024) - 5, wbuf) < 0) FAIL_STACK_ERROR;
/* Read back and verify both pieces of data */
if(accum_read(1048576, 1048575, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 1048576) != 0) TEST_ERROR;
if(accum_read(5, 1048571, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 1048571) != 0) TEST_ERROR;
/* Reset accumulator for next case */
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* ========================================================= */
/* Case 3: Appending small block to large, clean accumulator */
/* ========================================================= */
/* Write data to the accumulator to fill it just under 1MB (max size),
* but not quite full. This will force the accumulator to, on subsequent
* writes, a) have to adjust since it's nearly full, and b) prevent
* an increase in size because it's already at it's maximum size */
if(accum_write(0, (1024 * 1024) - 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Flush the accumulator -- we want to test the case when
accumulator contains clean data */
if(accum_flush() < 0) FAIL_STACK_ERROR
/* Write a small (1KB) block to the end of the accumulator */
/* ==> Accumulator will need more buffer space */
/* ==> Accumulator will try to resize, but see that it's getting too big */
/* ==> Size of new block is larger than half maximum size of accumulator */
/* ==> New block being appended to accumulator */
/* ==> Accumulator is NOT dirty */
/* ==> Since we're appending, need to adjust location of accumulator */
if(accum_write((1024 * 1024) - 1, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a piece of metadata outside current accumulator to force write
to disk */
if(accum_write(0, 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Read in the piece we wrote to disk above, and then verify that
the data is as expected */
if(accum_read((1024 * 1024) - 1, 1024, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 1024) != 0) TEST_ERROR;
/* Reset accumulator for next case */
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* ==================================================================== */
/* Case 4: Appending small block to large, partially dirty accumulator, */
/* with existing dirty region NOT aligning with the new block */
/* ==================================================================== */
/* Write data to the accumulator to fill it just under 1MB (max size),
* but not quite full. This will force the accumulator to, on subsequent
* writes, a) have to adjust since it's nearly full, and b) prevent
* an increase in size because it's already at it's maximum size */
if(accum_write(0, (1024 * 1024) - 5, wbuf) < 0) FAIL_STACK_ERROR;
/* Flush the accumulator to clean it */
if(accum_flush() < 0) FAIL_STACK_ERROR
/* write to part of the accumulator so just the start of it is dirty */
if(accum_write(0, 5, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a small (~340KB) piece of data to the other end of the accumulator */
/* ==> Accumulator will need more buffer space */
/* ==> Accumulator will try to resize, but see that it's getting too big */
/* ==> Size of new block is less than than half maximum size of accumulator */
/* ==> New block being appended to accumulator */
/* ==> We can slide the dirty region down, to accomodate the request */
/* ==> Max Buffer Size - (dirty offset + adjust size) >= 2 * size) */
/* ==> Need to adjust location of accumulator while appending */
/* ==> Accumulator will need to be reallocated */
if(accum_write(1048571, 349523, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a piece of metadata outside current accumulator to force write
to disk */
if(accum_write(1398900, 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Read in the piece we wrote to disk above, and then verify that
the data is as expected */
if(accum_read(1048571, 349523, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 349523) != 0) TEST_ERROR;
/* Reset accumulator for next case */
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* ==================================================================== */
/* Case 5: Appending small block to large, partially dirty accumulator, */
/* with existing dirty region aligning with new block */
/* ==================================================================== */
/* Write data to the accumulator to fill it just under max size (but not full) */
if(accum_write(0, (1024 * 1024) - 5, wbuf) < 0) FAIL_STACK_ERROR;
/* Flush the accumulator to clean it */
if(accum_flush() < 0) FAIL_STACK_ERROR
/* write to part of the accumulator so it's dirty, but not entirely dirty */
/* (just the begging few bytes will be clean) */
if(accum_write(10, (1024 * 1024) - 15, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a small piece of data to the dirty end of the accumulator */
/* ==> Accumulator will need more buffer space */
/* ==> Accumulator will try to resize, but see that it's getting too big */
/* ==> Size of new block is less than than half maximum size of accumulator */
/* ==> New block being appended to accumulator */
/* ==> We can slide the dirty region down, to accomodate the request */
/* ==> Max Buffer Size - (dirty offset + adjust size) < 2 * size) */
/* ==> Need to adjust location of accumulator while appending */
if(accum_write((1024 * 1024) - 5, 10, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a piece of metadata outside current accumulator to force write
to disk */
if(accum_write(0, 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Read in the piece we wrote to disk above, and then verify that
the data is as expected */
if(accum_read((1024 * 1024) - 5, 10, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 10) != 0) TEST_ERROR;
/* Reset accumulator for next case */
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* ================================================================= */
/* Case 6: Appending small block to large, fully dirty accumulator */
/* ================================================================= */
/* Write data to the accumulator to fill it just under 1MB (max size),
* but not quite full. This will force the accumulator to, on subsequent
* writes, a) have to adjust since it's nearly full, and b) prevent
* an increase in size because it's already at it's maximum size */
if(accum_write(0, (1024 * 1024) - 5, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a small (~340KB) piece of data to the end of the accumulator */
/* ==> Accumulator will need more buffer space */
/* ==> Accumulator will try to resize, but see that it's getting too big */
/* ==> Size of new block is less than than half maximum size of accumulator */
/* ==> New block being appended to accumulator */
/* ==> We cannot slide dirty region down, it's all dirty */
/* ==> Dirty region overlaps region to eliminate from accumulator */
/* ==> Need to adjust location of accumulator while appending */
if(accum_write(1048571, 349523, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a piece of metadata outside current accumulator to force write
to disk */
if(accum_write(1398900, 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Read in the piece we wrote to disk above, and then verify that
the data is as expected */
if(accum_read(1048571, 349523, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 349523) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 1;
} /* test_accum_adjust */
/*-------------------------------------------------------------------------
* Function: test_read_after
*
* Purpose: This test will verify the case when metadata is read partly
* from the accumulator and partly from disk. The test will
* write a block of data at address 512, force the data to be
* written to disk, write new data partially overlapping the
* original block from below, then read data at address 512.
* The data read should be partly new and partly original.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Larry Knox
* October 8, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_read_after(void)
{
int i = 0;
int s = 128; /* size of buffer */
int32_t *wbuf, *rbuf;
TESTING("reading data from both accumulator and disk");
/* Allocate buffers */
wbuf = (int32_t *)HDmalloc((size_t)s * sizeof(int32_t));
HDassert(wbuf);
rbuf = (int32_t *)HDcalloc((size_t)s, sizeof(int32_t));
HDassert(rbuf);
/* Fill up write buffer with 1s */
for(i = 0; i < s; i++)
wbuf[i] = 1;
/* Write data to the accumulator to fill it. */
if(accum_write(512, 512, wbuf) < 0) FAIL_STACK_ERROR;
/* Write a piece of metadata outside current accumulator to force write
to disk */
if(accum_write(0, 1, wbuf) < 0) FAIL_STACK_ERROR;
/* Fill up write buffer with 2s */
for(i = 0; i < s; i++)
wbuf[i] = 2;
/* Write a block of 2s of the original size that will overlap the lower half
of the original block */
if(accum_write(256, 512, wbuf) < 0) FAIL_STACK_ERROR;
/* Read 128 bytes at the original address, and then */
if(accum_read(512, 512, rbuf) < 0) FAIL_STACK_ERROR;
/* Set the second half of wbuf back to 1s */
for(i = 64; i < s; i++)
wbuf[i] = 1;
/* Read in the piece we wrote to disk above, and then verify that
the data is as expected */
if(accum_read(512, 512, rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf, rbuf, 128) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
return 1;
} /* end test_read_after */
/*-------------------------------------------------------------------------
* Function: test_big
*
* Purpose: This test exercises writing large pieces of metadata to the
* file.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Quincey Koziol
* October 12, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_big(void)
{
uint8_t *wbuf, *wbuf2, *rbuf, *zbuf; /* Buffers for reading & writing, etc */
unsigned u; /* Local index variable */
/* Allocate space for the write & read buffers */
wbuf = (uint8_t *)HDmalloc(BIG_BUF_SIZE);
HDassert(wbuf);
wbuf2 = (uint8_t *)HDmalloc(BIG_BUF_SIZE);
HDassert(wbuf2);
rbuf = (uint8_t *)HDcalloc(BIG_BUF_SIZE + 1536, 1);
HDassert(rbuf);
zbuf = (uint8_t *)HDcalloc(BIG_BUF_SIZE + 1536, 1);
HDassert(zbuf);
/* Initialize write buffers */
for(u = 0; u < BIG_BUF_SIZE; u++) {
wbuf[u] = (uint8_t)u;
wbuf2[u] = (uint8_t)(u + 1);
} /* end for */
TESTING("large metadata I/O operations");
/* Write large data segment to file */
if(accum_write(0, BIG_BUF_SIZE, wbuf) < 0) FAIL_STACK_ERROR;
/* Read entire segment back from file */
if(accum_read(0, BIG_BUF_SIZE, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf, rbuf, BIG_BUF_SIZE) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(0, BIG_BUF_SIZE, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to middle of accumulator */
if(accum_write(1024, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read entire segment back from file */
/* (Read covers entire dirty region) */
if(accum_read(0, BIG_BUF_SIZE, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(zbuf, rbuf, 1024) != 0) TEST_ERROR;
if(HDmemcmp(wbuf, rbuf + 1024, 1024) != 0) TEST_ERROR;
if(HDmemcmp(zbuf, rbuf + 2048, (BIG_BUF_SIZE - 2048)) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(1024, 1024, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to overlap with end of "big" region */
if(accum_write(BIG_BUF_SIZE - 512, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read entire segment back from file */
/* (Read covers bottom half of dirty region) */
if(accum_read(0, BIG_BUF_SIZE, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(zbuf, rbuf, (BIG_BUF_SIZE - 512)) != 0) TEST_ERROR;
if(HDmemcmp(wbuf, rbuf + (BIG_BUF_SIZE - 512), 512) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(BIG_BUF_SIZE - 512, 1024, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to overlap with beginning of "big" region */
if(accum_write(0, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read entire segment back from file */
/* (Read covers bottom half of dirty region) */
if(accum_read(512, BIG_BUF_SIZE, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf + 512, rbuf, 512) != 0) TEST_ERROR;
if(HDmemcmp(zbuf, rbuf + 512, (BIG_BUF_SIZE - 512)) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(0, 1024, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to middle of accumulator */
/* (With write buffer #1) */
if(accum_write(1024, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Write covers entire dirty region) */
if(accum_write(0, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read entire segment back from file */
if(accum_read(0, BIG_BUF_SIZE, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf2, rbuf, BIG_BUF_SIZE) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(0, BIG_BUF_SIZE, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to overlap with end of "big" region */
/* (With write buffer #1) */
if(accum_write(BIG_BUF_SIZE - 512, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Read covers bottom half of dirty region) */
if(accum_write(0, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read both segments back from file */
if(accum_read(0, BIG_BUF_SIZE + 512, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf2, rbuf, BIG_BUF_SIZE) != 0) TEST_ERROR;
if(HDmemcmp(wbuf + 512, rbuf + BIG_BUF_SIZE, 512) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(0, BIG_BUF_SIZE + 512, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE + 512);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to be past "big" region */
/* (With write buffer #1) */
if(accum_write(BIG_BUF_SIZE + 512, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read section before "big" region */
/* (To enlarge accumulator, to it will intersect with big write) */
if(accum_read(BIG_BUF_SIZE - 512, 1024, rbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Doesn't overlap with small section) */
if(accum_write(0, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read both segments & gap back from file */
if(accum_read(0, BIG_BUF_SIZE + 1024, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf2, rbuf, BIG_BUF_SIZE) != 0) TEST_ERROR;
if(HDmemcmp(zbuf, rbuf + BIG_BUF_SIZE, 512) != 0) TEST_ERROR;
if(HDmemcmp(wbuf, rbuf + BIG_BUF_SIZE + 512, 512) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(0, BIG_BUF_SIZE + 1536, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE + 1024);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section to be past "big" region */
/* (With write buffer #1) */
if(accum_write(BIG_BUF_SIZE + 512, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read section before "big" region */
/* (To enlarge accumulator, so it will intersect with big write) */
if(accum_read(BIG_BUF_SIZE - 512, 1024, rbuf) < 0) FAIL_STACK_ERROR;
if(accum_read(BIG_BUF_SIZE + 1536, 1024, rbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Overwriting dirty region, but not invalidating entire accumulator) */
if(accum_write(1536, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read both segments & gap back from file */
if(accum_read(0, BIG_BUF_SIZE + 1536, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(zbuf, rbuf, 1536) != 0) TEST_ERROR;
if(HDmemcmp(wbuf2, rbuf + 1536, BIG_BUF_SIZE) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(1536, BIG_BUF_SIZE, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE + 1536);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section before "big" region */
/* (With write buffer #1) */
if(accum_write(1024, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read section before "big" region */
/* (To enlarge accumulator, so it will intersect with big write) */
if(accum_read(0, 1024, rbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Overwriting dirty region, but not invalidating entire accumulator) */
if(accum_write(512, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read both segments & gap back from file */
if(accum_read(0, BIG_BUF_SIZE + 512, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(zbuf, rbuf, 512) != 0) TEST_ERROR;
if(HDmemcmp(wbuf2, rbuf + 512, BIG_BUF_SIZE) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(512, BIG_BUF_SIZE, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE + 512);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section before "big" region */
/* (With write buffer #1) */
if(accum_write(0, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read section before "big" region */
/* (To enlarge accumulator, so it will intersect with big write) */
if(accum_read(1024, 1024, rbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Avoiding dirty region, and not invalidating entire accumulator) */
if(accum_write(1536, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read both segments & gap back from file */
if(accum_read(0, BIG_BUF_SIZE + 1536, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf, rbuf, 1024) != 0) TEST_ERROR;
if(HDmemcmp(zbuf, rbuf + 1024, 512) != 0) TEST_ERROR;
if(HDmemcmp(wbuf2, rbuf + 1536, BIG_BUF_SIZE) != 0) TEST_ERROR;
/* Reset data in file back to zeros & reset the read buffer */
if(accum_write(0, BIG_BUF_SIZE + 1536, zbuf) < 0) FAIL_STACK_ERROR;
HDmemset(rbuf, 0, BIG_BUF_SIZE + 1536);
if(accum_reset() < 0) FAIL_STACK_ERROR;
/* Write small section before "big" region */
/* (With write buffer #1) */
if(accum_write(0, 1024, wbuf) < 0) FAIL_STACK_ERROR;
/* Read section before "big" region */
/* (To enlarge accumulator, so it will intersect with big write) */
if(accum_read(1024, 1024, rbuf) < 0) FAIL_STACK_ERROR;
/* Write entire segment to from file */
/* (With write buffer #2) */
/* (Partially overwriting dirty region, and not invalidating entire accumulator) */
if(accum_write(512, BIG_BUF_SIZE, wbuf2) < 0) FAIL_STACK_ERROR;
/* Read both segments back from file */
if(accum_read(0, BIG_BUF_SIZE + 512, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read */
if(HDmemcmp(wbuf, rbuf, 512) != 0) TEST_ERROR;
if(HDmemcmp(wbuf2, rbuf + 512, BIG_BUF_SIZE) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(wbuf2);
HDfree(rbuf);
HDfree(zbuf);
return 0;
error:
HDfree(wbuf);
HDfree(wbuf2);
HDfree(rbuf);
HDfree(zbuf);
return 1;
} /* end test_big() */
/*-------------------------------------------------------------------------
* Function: test_random_write
*
* Purpose: This test writes random pieces of data to the file and
* then reads it all back.
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Quincey Koziol
* October 11, 2010
*
*-------------------------------------------------------------------------
*/
unsigned
test_random_write(void)
{
uint8_t *wbuf, *rbuf; /* Buffers for reading & writing */
unsigned long seed = 0; /* Random # seed */
size_t *off; /* Offset of buffer segments to write */
size_t *len; /* Size of buffer segments to write */
size_t cur_off; /* Current offset */
size_t nsegments; /* Number of segments to write */
size_t swap; /* Position to swap with */
unsigned u; /* Local index variable */
/* Allocate space for the write & read buffers */
wbuf = (uint8_t *)malloc(RANDOM_BUF_SIZE);
HDassert(wbuf);
rbuf = (uint8_t *)calloc(RANDOM_BUF_SIZE, 1);
HDassert(rbuf);
/* Initialize write buffer */
for(u = 0; u < RANDOM_BUF_SIZE; u++)
wbuf[u] = (uint8_t)u;
TESTING("random writes to accumulator");
/* Choose random # seed */
seed = (unsigned long)HDtime(NULL);
#ifdef QAK
/* seed = (unsigned long)1155438845; */
HDfprintf(stderr, "Random # seed was: %lu\n", seed);
#endif /* QAK */
HDsrandom(seed);
/* Allocate space for the segment length buffer */
off = (size_t *)malloc(MAX_RANDOM_SEGMENTS * sizeof(size_t));
HDassert(off);
len = (size_t *)malloc(MAX_RANDOM_SEGMENTS * sizeof(size_t));
HDassert(len);
/* Randomly choose lengths of segments */
cur_off = 0;
for(u = 0; u < MAX_RANDOM_SEGMENTS; ) {
size_t length = 0; /* Length of current segment */
/* Choose random length of segment, allowing for variance */
do {
length += (size_t)(HDrandom() % RAND_SEG_LEN) + 1;
} while((HDrandom() & 256) >= 128); /* end while */
/* Check for going off end of buffer */
if((cur_off + length) > RANDOM_BUF_SIZE)
length = RANDOM_BUF_SIZE - cur_off;
/* Set offset & length of segment */
off[u] = cur_off;
len[u] = length;
/* Advance array offset */
u++;
/* Advance current offset */
cur_off += length;
/* If we've used up entire buffer before hitting limit of segments, get out */
if(cur_off >= RANDOM_BUF_SIZE)
break;
} /* end for */
nsegments = u;
/* Increase length of last segment, if it doesn't reach end of buffer */
if(nsegments < MAX_RANDOM_SEGMENTS)
len[nsegments - 1] = RANDOM_BUF_SIZE - off[nsegments - 1];
/* Shuffle order of segments, to randomize positions to write */
for(u = 0; u < nsegments; u++) {
size_t tmp; /* Temporary holder for offset & length values */
/* Choose value within next few elements to to swap with */
swap = ((size_t)HDrandom() % 8) + u;
if(swap >= nsegments)
swap = nsegments - 1;
/* Swap values */
tmp = off[u]; off[u] = off[swap]; off[swap] = tmp;
tmp = len[u]; len[u] = len[swap]; len[swap] = tmp;
} /* end for */
/* Write data segments to file */
for(u = 0; u < nsegments; u++) {
if(accum_write(RANDOM_BASE_OFF + off[u], len[u], wbuf + off[u]) < 0) FAIL_STACK_ERROR;
/* Verify individual reads */
if(accum_read(RANDOM_BASE_OFF + off[u], len[u], rbuf) < 0) FAIL_STACK_ERROR;
if(HDmemcmp(wbuf + off[u], rbuf, len[u]) != 0) TEST_ERROR;
} /* end for */
/* Read entire region back from file */
if(accum_read(RANDOM_BASE_OFF, RANDOM_BUF_SIZE, rbuf) < 0) FAIL_STACK_ERROR;
/* Verify data read back in */
if(HDmemcmp(wbuf, rbuf, RANDOM_BUF_SIZE) != 0) TEST_ERROR;
if(accum_reset() < 0) FAIL_STACK_ERROR;
PASSED();
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
HDfree(off);
HDfree(len);
return 0;
error:
/* Release memory */
HDfree(wbuf);
HDfree(rbuf);
HDfree(off);
HDfree(len);
HDfprintf(stderr, "Random # seed was: %lu\n", seed);
return 1;
} /* end test_random_write() */
/*-------------------------------------------------------------------------
* Function: accum_printf
*
* Purpose: Debug function to print some stats about the accumulator
*
* Return: Success: SUCCEED
* Failure: FAIL
*
* Programmer: Mike McGreevy
* October 7, 2010
*
*-------------------------------------------------------------------------
*/
void
accum_printf(void)
{
H5F_meta_accum_t * accum = &f->shared->accum;
printf("\n");
printf("Current contents of accumulator:\n");
if (accum->alloc_size == 0) {
printf("=====================================================\n");
printf(" No accumulator allocated.\n");
printf("=====================================================\n");
} else {
printf("=====================================================\n");
printf(" accumulator allocated size == %lu\n", (unsigned long)accum->alloc_size);
printf(" accumulated data size == %lu\n", (unsigned long)accum->size);
printf(" accumulator dirty? == %d\n", accum->dirty);
printf("=====================================================\n");
printf(" start of accumulated data, loc = %llu\n", accum->loc);
if (accum->dirty) printf(" start of dirty region, loc = %llu\n", accum->loc + accum->dirty_off);
if (accum->dirty) printf(" end of dirty region, loc = %llu\n", accum->loc + accum->dirty_off + accum->dirty_len);
printf(" end of accumulated data, loc = %llu\n", accum->loc + accum->size);
printf(" end of accumulator allocation, loc = %llu\n", accum->loc + accum->alloc_size);
printf("=====================================================\n");
}
printf("\n\n");
} /* accum_printf() */
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