Hi.
I got a problem when compiling SQLte 3.7.2 for Windows CE 4.2 (Windows Mobile
2003) - it cannot be done.
In the function winShmSystemLock(...) is called API-function UnlockFileEx(...),
but it is implemented only in Windows CE 5.0 and later (and there in
winShmSystemLock(...) is used constant LOCKFILE_EXCLUSIVE_LOCK - it is not
exists in WM 2003 SDK).
I suggest solution (2 "patches" in winShmSystemLock(...)):
1.
old code:
if( lockType == _SHM_WRLCK ) dwFlags |= LOCKFILE_EXCLUSIVE_LOCK;
new code:
#if SQLITE_OS_WINCE==1 && _WIN32_WCE!=0x420 && _WIN32_WCE!=420
if( lockType == _SHM_WRLCK ) dwFlags |= LOCKFILE_EXCLUSIVE_LOCK;
#endif // WinCE 4.20?
2.
old code:
if( lockType==_SHM_UNLCK ){
rc = UnlockFileEx(pFile->hFile.h, 0, nByte, 0, &ovlp);
}else{
new code:
if( lockType==_SHM_UNLCK ){
#if SQLITE_OS_WINCE==1 && _WIN32_WCE!=0x420 && _WIN32_WCE!=420
rc = UnlockFileEx(pFile->hFile.h, 0, nByte, 0, &ovlp);
#else // WinCE 4.20?
rc = UnlockFile(pFile->hFile.h, ovlp.Offset, ovlp.OffsetHigh, nByte, 0);
#endif // WinCE 4.20?
}else{
I'm not sure whether I pass "right" parameters to the UnlockFile(...), it
should be checked
Why 2 conditions ("0x420" and "420")? In eVC 4.0 variable $(CEVER) (_WIN32_WCE
get value from it) has "decimal form", but in VS2005 and later this variable
has "hex. form".
---
WBR,
Aleksandr Jr.
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