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Overview
Comment:Fix an assert() in the merge-sort logic to account for I/O errors.
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SHA1: c1daa809a17a97610e51f9babd90f36908921245
User & Date: drh 2011-08-15 15:37:15
Context
2011-08-15
19:44
Updated comments on the multiplexor extension. No changes to code. check-in: 0f42ef69 user: drh tags: trunk
15:37
Fix an assert() in the merge-sort logic to account for I/O errors. check-in: c1daa809 user: drh tags: trunk
15:27
New makefile target "sqlite3-debug.c" builds an amalgamation that include appropriate "#line" macros relating the code back to the original source files. check-in: 26f2da24 user: drh tags: trunk
Changes
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Changes to src/vdbesort.c.

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  i64 nByte = 0;                  /* Total bytes in all opened PMAs */

  /* Initialize the iterators. */
  for(i=0; rc==SQLITE_OK && i<SORTER_MAX_MERGE_COUNT; i++){
    VdbeSorterIter *pIter = &pSorter->aIter[i];
    rc = vdbeSorterIterInit(db, pSorter, pSorter->iReadOff, pIter, &nByte);
    pSorter->iReadOff = pIter->iEof;
    assert( pSorter->iReadOff<=pSorter->iWriteOff );
    if( pSorter->iReadOff>=pSorter->iWriteOff ) break;
  }

  /* Initialize the aTree[] array. */
  for(i=pSorter->nTree-1; rc==SQLITE_OK && i>0; i--){
    rc = vdbeSorterDoCompare(pCsr, i);
  }







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537
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  i64 nByte = 0;                  /* Total bytes in all opened PMAs */

  /* Initialize the iterators. */
  for(i=0; rc==SQLITE_OK && i<SORTER_MAX_MERGE_COUNT; i++){
    VdbeSorterIter *pIter = &pSorter->aIter[i];
    rc = vdbeSorterIterInit(db, pSorter, pSorter->iReadOff, pIter, &nByte);
    pSorter->iReadOff = pIter->iEof;
    assert( pSorter->iReadOff<=pSorter->iWriteOff || rc!=SQLITE_OK );
    if( pSorter->iReadOff>=pSorter->iWriteOff ) break;
  }

  /* Initialize the aTree[] array. */
  for(i=pSorter->nTree-1; rc==SQLITE_OK && i>0; i--){
    rc = vdbeSorterDoCompare(pCsr, i);
  }