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Overview
Comment:Fixed some warnings and an assert in the WINCE code when compiling under MSVC.
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SHA1: f42ec993ac9d42ca31305f26b09924108c36d9f4
User & Date: shane 2009-09-10 20:23:30
References
2009-09-14
16:50 • Ticket [03b198a2] Getting several warnings when compiling in eVC++ 4 status still Fixed with 1 other change (artifact: b35459b1 user: drh)
Context
2009-09-10
22:30
Omit the mutexIsInit test variable when mutexes are disabled. (check-in: 3ea10434 user: drh tags: trunk)
20:23
Fixed some warnings and an assert in the WINCE code when compiling under MSVC. (check-in: f42ec993 user: shane tags: trunk)
19:20
Make sure the threadsOverrideEachOthersLocks variable is only referenced by linux systems on a threadsafe compile. (check-in: e9d064bd user: drh tags: trunk)
Changes
Hide Diffs Unified Diffs Ignore Whitespace Patch

Changes to src/date.c. 

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  } else {
    int s = (int)(x.s + 0.5);
    x.s = s;
  }
  x.tz = 0;
  x.validJD = 0;
  computeJD(&x);
  t = x.iJD/1000 - 21086676*(i64)10000;
#ifdef HAVE_LOCALTIME_R
  {
    struct tm sLocal;
    localtime_r(&t, &sLocal);
    y.Y = sLocal.tm_year + 1900;
    y.M = sLocal.tm_mon + 1;
    y.D = sLocal.tm_mday;








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  } else {
    int s = (int)(x.s + 0.5);
    x.s = s;
  }
  x.tz = 0;
  x.validJD = 0;
  computeJD(&x);
  t = (time_t)(x.iJD/1000 - 21086676*(i64)10000);
#ifdef HAVE_LOCALTIME_R
  {
    struct tm sLocal;
    localtime_r(&t, &sLocal);
    y.Y = sLocal.tm_year + 1900;
    y.M = sLocal.tm_mon + 1;
    y.D = sLocal.tm_mday;

Changes to src/os_win.c. 

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  UNUSED_PARAMETER(dwFileOffsetHigh);
  UNUSED_PARAMETER(nNumberOfBytesToLockHigh);

  if (!pFile->hMutex) return TRUE;
  winceMutexAcquire(pFile->hMutex);

  /* Wanting an exclusive lock? */
  if (dwFileOffsetLow == SHARED_FIRST
       && nNumberOfBytesToLockLow == SHARED_SIZE){
    if (pFile->shared->nReaders == 0 && pFile->shared->bExclusive == 0){
       pFile->shared->bExclusive = TRUE;
       pFile->local.bExclusive = TRUE;
       bReturn = TRUE;
    }
  }

  /* Want a read-only lock? */
  else if (dwFileOffsetLow == SHARED_FIRST &&
           nNumberOfBytesToLockLow == 1){
    if (pFile->shared->bExclusive == 0){
      pFile->local.nReaders ++;
      if (pFile->local.nReaders == 1){
        pFile->shared->nReaders ++;
      }
      bReturn = TRUE;
    }
  }

  /* Want a pending lock? */
  else if (dwFileOffsetLow == PENDING_BYTE && nNumberOfBytesToLockLow == 1){
    /* If no pending lock has been acquired, then acquire it */
    if (pFile->shared->bPending == 0) {
      pFile->shared->bPending = TRUE;
      pFile->local.bPending = TRUE;
      bReturn = TRUE;
    }
  }

  /* Want a reserved lock? */
  else if (dwFileOffsetLow == RESERVED_BYTE && nNumberOfBytesToLockLow == 1){
    if (pFile->shared->bReserved == 0) {
      pFile->shared->bReserved = TRUE;
      pFile->local.bReserved = TRUE;
      bReturn = TRUE;
    }
  }

................................................................................
  UNUSED_PARAMETER(dwFileOffsetHigh);
  UNUSED_PARAMETER(nNumberOfBytesToUnlockHigh);

  if (!pFile->hMutex) return TRUE;
  winceMutexAcquire(pFile->hMutex);

  /* Releasing a reader lock or an exclusive lock */
  if (dwFileOffsetLow == SHARED_FIRST){
    /* Did we have an exclusive lock? */
    if (pFile->local.bExclusive){
      assert(nNumberOfBytesToUnlockLow == SHARED_SIZE);
      pFile->local.bExclusive = FALSE;
      pFile->shared->bExclusive = FALSE;
      bReturn = TRUE;
    }

    /* Did we just have a reader lock? */
    else if (pFile->local.nReaders){
      assert(nNumberOfBytesToUnlockLow == 1);
      pFile->local.nReaders --;
      if (pFile->local.nReaders == 0)
      {
        pFile->shared->nReaders --;
      }
      bReturn = TRUE;
    }
  }

  /* Releasing a pending lock */
  else if (dwFileOffsetLow == PENDING_BYTE && nNumberOfBytesToUnlockLow == 1){
    if (pFile->local.bPending){
      pFile->local.bPending = FALSE;
      pFile->shared->bPending = FALSE;
      bReturn = TRUE;
    }
  }
  /* Releasing a reserved lock */
  else if (dwFileOffsetLow == RESERVED_BYTE && nNumberOfBytesToUnlockLow == 1){
    if (pFile->local.bReserved) {
      pFile->local.bReserved = FALSE;
      pFile->shared->bReserved = FALSE;
      bReturn = TRUE;
    }
  }

................................................................................
  LPOVERLAPPED lpOverlapped
){
  UNUSED_PARAMETER(dwReserved);
  UNUSED_PARAMETER(nNumberOfBytesToLockHigh);

  /* If the caller wants a shared read lock, forward this call
  ** to winceLockFile */
  if (lpOverlapped->Offset == SHARED_FIRST &&
      dwFlags == 1 &&
      nNumberOfBytesToLockLow == SHARED_SIZE){
    return winceLockFile(phFile, SHARED_FIRST, 0, 1, 0);
  }
  return FALSE;
}
/*
** End of the special code for wince
*****************************************************************************/








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  UNUSED_PARAMETER(dwFileOffsetHigh);
  UNUSED_PARAMETER(nNumberOfBytesToLockHigh);

  if (!pFile->hMutex) return TRUE;
  winceMutexAcquire(pFile->hMutex);

  /* Wanting an exclusive lock? */
  if (dwFileOffsetLow == (DWORD)SHARED_FIRST
       && nNumberOfBytesToLockLow == (DWORD)SHARED_SIZE){
    if (pFile->shared->nReaders == 0 && pFile->shared->bExclusive == 0){
       pFile->shared->bExclusive = TRUE;
       pFile->local.bExclusive = TRUE;
       bReturn = TRUE;
    }
  }

  /* Want a read-only lock? */
  else if (dwFileOffsetLow == (DWORD)SHARED_FIRST &&
           nNumberOfBytesToLockLow == 1){
    if (pFile->shared->bExclusive == 0){
      pFile->local.nReaders ++;
      if (pFile->local.nReaders == 1){
        pFile->shared->nReaders ++;
      }
      bReturn = TRUE;
    }
  }

  /* Want a pending lock? */
  else if (dwFileOffsetLow == (DWORD)PENDING_BYTE && nNumberOfBytesToLockLow == 1){
    /* If no pending lock has been acquired, then acquire it */
    if (pFile->shared->bPending == 0) {
      pFile->shared->bPending = TRUE;
      pFile->local.bPending = TRUE;
      bReturn = TRUE;
    }
  }

  /* Want a reserved lock? */
  else if (dwFileOffsetLow == (DWORD)RESERVED_BYTE && nNumberOfBytesToLockLow == 1){
    if (pFile->shared->bReserved == 0) {
      pFile->shared->bReserved = TRUE;
      pFile->local.bReserved = TRUE;
      bReturn = TRUE;
    }
  }

................................................................................
  UNUSED_PARAMETER(dwFileOffsetHigh);
  UNUSED_PARAMETER(nNumberOfBytesToUnlockHigh);

  if (!pFile->hMutex) return TRUE;
  winceMutexAcquire(pFile->hMutex);

  /* Releasing a reader lock or an exclusive lock */
  if (dwFileOffsetLow == (DWORD)SHARED_FIRST){
    /* Did we have an exclusive lock? */
    if (pFile->local.bExclusive){
      assert(nNumberOfBytesToUnlockLow == (DWORD)SHARED_SIZE);
      pFile->local.bExclusive = FALSE;
      pFile->shared->bExclusive = FALSE;
      bReturn = TRUE;
    }

    /* Did we just have a reader lock? */
    else if (pFile->local.nReaders){
      assert(nNumberOfBytesToUnlockLow == (DWORD)SHARED_SIZE || nNumberOfBytesToUnlockLow == 1);
      pFile->local.nReaders --;
      if (pFile->local.nReaders == 0)
      {
        pFile->shared->nReaders --;
      }
      bReturn = TRUE;
    }
  }

  /* Releasing a pending lock */
  else if (dwFileOffsetLow == (DWORD)PENDING_BYTE && nNumberOfBytesToUnlockLow == 1){
    if (pFile->local.bPending){
      pFile->local.bPending = FALSE;
      pFile->shared->bPending = FALSE;
      bReturn = TRUE;
    }
  }
  /* Releasing a reserved lock */
  else if (dwFileOffsetLow == (DWORD)RESERVED_BYTE && nNumberOfBytesToUnlockLow == 1){
    if (pFile->local.bReserved) {
      pFile->local.bReserved = FALSE;
      pFile->shared->bReserved = FALSE;
      bReturn = TRUE;
    }
  }

................................................................................
  LPOVERLAPPED lpOverlapped
){
  UNUSED_PARAMETER(dwReserved);
  UNUSED_PARAMETER(nNumberOfBytesToLockHigh);

  /* If the caller wants a shared read lock, forward this call
  ** to winceLockFile */
  if (lpOverlapped->Offset == (DWORD)SHARED_FIRST &&
      dwFlags == 1 &&
      nNumberOfBytesToLockLow == (DWORD)SHARED_SIZE){
    return winceLockFile(phFile, SHARED_FIRST, 0, 1, 0);
  }
  return FALSE;
}
/*
** End of the special code for wince
*****************************************************************************/

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