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Overview
| Comment: | Implement xFullpath for lsm1 on Win32. |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | lsm-vtab |
| Files: | files | file ages | folders |
| SHA3-256: |
dbe9c8aa8d70051fafec569054eeda6c |
| User & Date: | mistachkin 2017-06-27 18:15:38 |
| Original Comment: | Implement xFullpath for Win32. |
Context
|
2017-06-27
| ||
| 22:27 | Initial work on porting lsmtest to Win32. check-in: 7e669d9b user: mistachkin tags: lsm-vtab | |
| 18:15 | Implement xFullpath for lsm1 on Win32. check-in: dbe9c8aa user: mistachkin tags: lsm-vtab | |
| 06:28 | Minor corrections to the previous check-in. check-in: e1cf8a78 user: mistachkin tags: lsm-vtab | |
Changes
Changes to ext/lsm1/lsm_win32.c.
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HANDLE hMap; /* File handle for mapping */ void *pMap; /* Pointer to mapping of file fd */ size_t nMap; /* Size of mapping at pMap in bytes */ int nShm; /* Number of entries in array apShm[] */ void **apShm; /* Array of 32K shared memory segments */ }; int lsmWin32OsSleep(lsm_env *pEnv, int us); static char *win32ShmFile(Win32File *p){ char *zShm; int nName = strlen(p->zName); zShm = (char *)lsmMallocZero(p->pEnv, nName+4+1); if( zShm ){ memcpy(zShm, p->zName, nName); memcpy(&zShm[nName], "-shm", 5); } return zShm; } /* ** The number of times that an I/O operation will be retried following a ** locking error - probably caused by antivirus software. Also the initial ** delay before the first retry. The delay increases linearly with each ** retry. */ ................................................................................ ){ DWORD lastErrno; if( *pnRetry>=win32IoerrRetry ){ return 0; } lastErrno = GetLastError(); if( win32IoerrCanRetry1(lastErrno) ){ lsmWin32OsSleep(pEnv, win32IoerrRetryDelay*(1+*pnRetry)); ++*pnRetry; return 1; } #if defined(win32IoerrCanRetry2) else if( win32IoerrCanRetry2(lastErrno) ){ lsmWin32OsSleep(pEnv, win32IoerrRetryDelay*(1+*pnRetry)); ++*pnRetry; return 1; } #endif return 0; } ................................................................................ nChar = MultiByteToWideChar(CP_UTF8, 0, zText, -1, zWideText, nChar); if( nChar==0 ){ lsmFree(pEnv, zWideText); zWideText = 0; } return zWideText; } #if !defined(win32IsNotFound) #define win32IsNotFound(a) (((a)==ERROR_FILE_NOT_FOUND) || \ ((a)==ERROR_PATH_NOT_FOUND)) #endif static int lsmWin32OsOpen( ................................................................................ int rc = LSM_OK; Win32File *pWin32File; pWin32File = lsmMallocZero(pEnv, sizeof(Win32File)); if( pWin32File==0 ){ rc = LSM_NOMEM_BKPT; }else{ LPCWSTR zConverted; int bReadonly = (flags & LSM_OPEN_READONLY); DWORD dwDesiredAccess; DWORD dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE; DWORD dwCreationDisposition; DWORD dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL; HANDLE hFile; ................................................................................ lsm_file *pFile, lsm_i64 iMin, void **ppOut, lsm_i64 *pnOut ){ return LSM_ERROR; } static int lsmWin32OsFullpath( lsm_env *pEnv, const char *zName, char *zOut, int *pnOut ){ return LSM_ERROR; } static int lsmWin32OsFileid( lsm_file *pFile, void *pBuf, int *pnBuf ){ ................................................................................ lsmFree(pWin32File->pEnv, pWin32File->apShm); lsmFree(pWin32File->pEnv, pWin32File); return rc; } static int lsmWin32OsSleep(lsm_env *pEnv, int us){ unused_parameter(pEnv); Sleep((us + 999) / 1000); return LSM_OK; } /**************************************************************************** ** Memory allocation routines. */ static void *lsmWin32OsMalloc(lsm_env *pEnv, size_t N){ |
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HANDLE hMap; /* File handle for mapping */
void *pMap; /* Pointer to mapping of file fd */
size_t nMap; /* Size of mapping at pMap in bytes */
int nShm; /* Number of entries in array apShm[] */
void **apShm; /* Array of 32K shared memory segments */
};
static char *win32ShmFile(Win32File *p){
char *zShm;
int nName = strlen(p->zName);
zShm = (char *)lsmMallocZero(p->pEnv, nName+4+1);
if( zShm ){
memcpy(zShm, p->zName, nName);
memcpy(&zShm[nName], "-shm", 5);
}
return zShm;
}
static int win32Sleep(int us){
Sleep((us + 999) / 1000);
return LSM_OK;
}
/*
** The number of times that an I/O operation will be retried following a
** locking error - probably caused by antivirus software. Also the initial
** delay before the first retry. The delay increases linearly with each
** retry.
*/
................................................................................
){
DWORD lastErrno;
if( *pnRetry>=win32IoerrRetry ){
return 0;
}
lastErrno = GetLastError();
if( win32IoerrCanRetry1(lastErrno) ){
win32Sleep(win32IoerrRetryDelay*(1+*pnRetry));
++*pnRetry;
return 1;
}
#if defined(win32IoerrCanRetry2)
else if( win32IoerrCanRetry2(lastErrno) ){
win32Sleep(win32IoerrRetryDelay*(1+*pnRetry));
++*pnRetry;
return 1;
}
#endif
return 0;
}
................................................................................
nChar = MultiByteToWideChar(CP_UTF8, 0, zText, -1, zWideText, nChar);
if( nChar==0 ){
lsmFree(pEnv, zWideText);
zWideText = 0;
}
return zWideText;
}
/*
** Convert a Microsoft Unicode string to UTF-8.
**
** Space to hold the returned string is obtained from lsmMalloc().
*/
static char *win32UnicodeToUtf8(lsm_env *pEnv, LPCWSTR zWideText){
int nByte;
char *zText;
nByte = WideCharToMultiByte(CP_UTF8, 0, zWideText, -1, 0, 0, 0, 0);
if( nByte == 0 ){
return 0;
}
zText = lsmMallocZero(pEnv, nByte);
if( zText==0 ){
return 0;
}
nByte = WideCharToMultiByte(CP_UTF8, 0, zWideText, -1, zText, nByte, 0, 0);
if( nByte == 0 ){
lsmFree(pEnv, zText);
zText = 0;
}
return zText;
}
#if !defined(win32IsNotFound)
#define win32IsNotFound(a) (((a)==ERROR_FILE_NOT_FOUND) || \
((a)==ERROR_PATH_NOT_FOUND))
#endif
static int lsmWin32OsOpen(
................................................................................
int rc = LSM_OK;
Win32File *pWin32File;
pWin32File = lsmMallocZero(pEnv, sizeof(Win32File));
if( pWin32File==0 ){
rc = LSM_NOMEM_BKPT;
}else{
LPWSTR zConverted;
int bReadonly = (flags & LSM_OPEN_READONLY);
DWORD dwDesiredAccess;
DWORD dwShareMode = FILE_SHARE_READ | FILE_SHARE_WRITE;
DWORD dwCreationDisposition;
DWORD dwFlagsAndAttributes = FILE_ATTRIBUTE_NORMAL;
HANDLE hFile;
................................................................................
lsm_file *pFile,
lsm_i64 iMin,
void **ppOut,
lsm_i64 *pnOut
){
return LSM_ERROR;
}
static BOOL win32IsDriveLetterAndColon(
const char *zPathname
){
return ( isalpha(zPathname[0]) && zPathname[1]==':' );
}
static int lsmWin32OsFullpath(
lsm_env *pEnv,
const char *zName,
char *zOut,
int *pnOut
){
DWORD nByte;
void *zConverted;
LPWSTR zTempWide;
char *zTempUtf8;
if( zName[0]=='/' && win32IsDriveLetterAndColon(zName+1) ){
zName++;
}
zConverted = win32Utf8ToUnicode(pEnv, zName);
if( zConverted==0 ){
return LSM_NOMEM_BKPT;
}
nByte = GetFullPathNameW((LPCWSTR)zConverted, 0, 0, 0);
if( nByte==0 ){
lsmFree(pEnv, zConverted);
return LSM_IOERR_BKPT;
}
nByte += 3;
zTempWide = lsmMallocZero(pEnv, nByte * sizeof(zTempWide[0]));
if( zTempWide==0 ){
lsmFree(pEnv, zConverted);
return LSM_NOMEM_BKPT;
}
nByte = GetFullPathNameW((LPCWSTR)zConverted, nByte, zTempWide, 0);
if( nByte==0 ){
lsmFree(pEnv, zConverted);
lsmFree(pEnv, zTempWide);
return LSM_IOERR_BKPT;
}
lsmFree(pEnv, zConverted);
zTempUtf8 = win32UnicodeToUtf8(pEnv, zTempWide);
lsmFree(pEnv, zTempWide);
if( zTempUtf8 ){
int nOut = *pnOut;
int nLen = strlen(zTempUtf8) + 1;
if( nLen>=nOut ){
lsmFree(pEnv, zTempUtf8);
return LSM_IOERR_BKPT;
}
snprintf(zOut, nOut, "%s", zTempUtf8);
lsmFree(pEnv, zTempUtf8);
*pnOut = nLen;
return LSM_OK;
}else{
return LSM_NOMEM_BKPT;
}
}
static int lsmWin32OsFileid(
lsm_file *pFile,
void *pBuf,
int *pnBuf
){
................................................................................
lsmFree(pWin32File->pEnv, pWin32File->apShm);
lsmFree(pWin32File->pEnv, pWin32File);
return rc;
}
static int lsmWin32OsSleep(lsm_env *pEnv, int us){
unused_parameter(pEnv);
return win32Sleep(us);
}
/****************************************************************************
** Memory allocation routines.
*/
static void *lsmWin32OsMalloc(lsm_env *pEnv, size_t N){
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