*/
#ifndef SQLITE_OMIT_DISKIO
+/*
+** The following variable is (normally) set once and never changes
+** thereafter. It records whether the operating system is Win95
+** or WinNT.
+**
+** 0: Operating system unknown.
+** 1: Operating system is Win95.
+** 2: Operating system is WinNT.
+**
+** In order to facilitate testing on a WinNT system, the test fixture
+** can manually set this value to 1 to emulate Win98 behavior.
+*/
+int sqlite3_os_type = 0;
+
+/*
+** Return true (non-zero) if we are running under WinNT, Win2K or WinXP.
+** Return false (zero) for Win95, Win98, or WinME.
+**
+** Here is an interesting observation: Win95, Win98, and WinME lack
+** the LockFileEx() API. But we can still statically link against that
+** API as long as we don't call it win running Win95/98/ME. A call to
+** this routine is used to determine if the host is Win95/98/ME or
+** WinNT/2K/XP so that we will know whether or not we can safely call
+** the LockFileEx() API.
+*/
+static int isNT(void){
+ if( sqlite3_os_type==0 ){
+ OSVERSIONINFO sInfo;
+ sInfo.dwOSVersionInfoSize = sizeof(sInfo);
+ GetVersionEx(&sInfo);
+ sqlite3_os_type = sInfo.dwPlatformId==VER_PLATFORM_WIN32_NT ? 2 : 1;
+ }
+ return sqlite3_os_type==2;
+}
+
+/*
+** Convert a UTF-8 string to UTF-32. Space to hold the returned string
+** is obtained from sqliteMalloc.
+*/
+static WCHAR *utf8ToUnicode(const char *zFilename){
+ int nByte;
+ WCHAR *zWideFilename;
+
+ if( !isNT() ){
+ return 0;
+ }
+ nByte = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, NULL, 0)*sizeof(WCHAR);
+ zWideFilename = sqliteMalloc( nByte );
+ if( zWideFilename==0 ){
+ return 0;
+ }
+ nByte = MultiByteToWideChar(CP_UTF8, 0, zFilename, -1, zWideFilename, nByte);
+ if( nByte==0 ){
+ sqliteFree(zWideFilename);
+ zWideFilename = 0;
+ }
+ return zWideFilename;
+}
+
+/*
+** Convert UTF-32 to UTF-8. Space to hold the returned string is
+** obtained from sqliteMalloc().
+*/
+static char *unicodeToUtf8(const WCHAR *zWideFilename){
+ int nByte;
+ char *zFilename;
+
+ nByte = WideCharToMultiByte(CP_UTF8, 0, zWideFilename, -1, 0, 0, 0, 0);
+ zFilename = sqliteMalloc( nByte );
+ if( zFilename==0 ){
+ return 0;
+ }
+ nByte = WideCharToMultiByte(CP_UTF8, 0, zWideFilename, -1, zFilename, nByte,
+ 0, 0);
+ if( nByte == 0 ){
+ sqliteFree(zFilename);
+ zFilename = 0;
+ }
+ return zFilename;
+}
+
+
/*
** Delete the named file
*/
int sqlite3OsDelete(const char *zFilename){
- DeleteFileA(zFilename);
+ WCHAR *zWide = utf8ToUnicode(zFilename);
+ if( zWide ){
+ DeleteFileW(zWide);
+ sqliteFree(zWide);
+ }else{
+ DeleteFileA(zFilename);
+ }
TRACE2("DELETE \"%s\"\n", zFilename);
return SQLITE_OK;
}
** Return TRUE if the named file exists.
*/
int sqlite3OsFileExists(const char *zFilename){
- return GetFileAttributesA(zFilename) != 0xffffffff;
+ int exists = 0;
+ WCHAR *zWide = utf8ToUnicode(zFilename);
+ if( zWide ){
+ exists = GetFileAttributesW(zWide) != 0xffffffff;
+ sqliteFree(zWide);
+ }else{
+ exists = GetFileAttributesA(zFilename) != 0xffffffff;
+ }
+ return exists;
}
/*
int *pReadonly
){
HANDLE h;
+ WCHAR *zWide = utf8ToUnicode(zFilename);
assert( !id->isOpen );
- h = CreateFileA(zFilename,
- GENERIC_READ | GENERIC_WRITE,
- FILE_SHARE_READ | FILE_SHARE_WRITE,
- NULL,
- OPEN_ALWAYS,
- FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
- NULL
- );
- if( h==INVALID_HANDLE_VALUE ){
- h = CreateFileA(zFilename,
- GENERIC_READ,
- FILE_SHARE_READ,
+ if( zWide ){
+ h = CreateFileW(zWide,
+ GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
NULL,
OPEN_ALWAYS,
FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
NULL
);
if( h==INVALID_HANDLE_VALUE ){
- return SQLITE_CANTOPEN;
+ h = CreateFileW(zWide,
+ GENERIC_READ,
+ FILE_SHARE_READ,
+ NULL,
+ OPEN_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
+ NULL
+ );
+ if( h==INVALID_HANDLE_VALUE ){
+ sqliteFree(zWide);
+ return SQLITE_CANTOPEN;
+ }
+ *pReadonly = 1;
+ }else{
+ *pReadonly = 0;
}
- *pReadonly = 1;
+ sqliteFree(zWide);
}else{
- *pReadonly = 0;
+ h = CreateFileA(zFilename,
+ GENERIC_READ | GENERIC_WRITE,
+ FILE_SHARE_READ | FILE_SHARE_WRITE,
+ NULL,
+ OPEN_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
+ NULL
+ );
+ if( h==INVALID_HANDLE_VALUE ){
+ h = CreateFileA(zFilename,
+ GENERIC_READ,
+ FILE_SHARE_READ,
+ NULL,
+ OPEN_ALWAYS,
+ FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
+ NULL
+ );
+ if( h==INVALID_HANDLE_VALUE ){
+ return SQLITE_CANTOPEN;
+ }
+ *pReadonly = 1;
+ }else{
+ *pReadonly = 0;
+ }
}
id->h = h;
id->locktype = NO_LOCK;
int sqlite3OsOpenExclusive(const char *zFilename, OsFile *id, int delFlag){
HANDLE h;
int fileflags;
+ WCHAR *zWide = utf8ToUnicode(zFilename);
assert( !id->isOpen );
if( delFlag ){
fileflags = FILE_ATTRIBUTE_TEMPORARY | FILE_FLAG_RANDOM_ACCESS
}else{
fileflags = FILE_FLAG_RANDOM_ACCESS;
}
- h = CreateFileA(zFilename,
- GENERIC_READ | GENERIC_WRITE,
- 0,
- NULL,
- CREATE_ALWAYS,
- fileflags,
- NULL
- );
+ if( zWide ){
+ h = CreateFileW(zWide,
+ GENERIC_READ | GENERIC_WRITE,
+ 0,
+ NULL,
+ CREATE_ALWAYS,
+ fileflags,
+ NULL
+ );
+ sqliteFree(zWide);
+ }else{
+ h = CreateFileA(zFilename,
+ GENERIC_READ | GENERIC_WRITE,
+ 0,
+ NULL,
+ CREATE_ALWAYS,
+ fileflags,
+ NULL
+ );
+ }
if( h==INVALID_HANDLE_VALUE ){
return SQLITE_CANTOPEN;
}
*/
int sqlite3OsOpenReadOnly(const char *zFilename, OsFile *id){
HANDLE h;
+ WCHAR *zWide = utf8ToUnicode(zFilename);
assert( !id->isOpen );
- h = CreateFileA(zFilename,
- GENERIC_READ,
- 0,
- NULL,
- OPEN_EXISTING,
- FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
- NULL
- );
+ if( zWide ){
+ h = CreateFileW(zWide,
+ GENERIC_READ,
+ 0,
+ NULL,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
+ NULL
+ );
+ sqliteFree(zWide);
+ }else{
+ h = CreateFileA(zFilename,
+ GENERIC_READ,
+ 0,
+ NULL,
+ OPEN_EXISTING,
+ FILE_ATTRIBUTE_NORMAL | FILE_FLAG_RANDOM_ACCESS,
+ NULL
+ );
+ }
if( h==INVALID_HANDLE_VALUE ){
return SQLITE_CANTOPEN;
}
if( sqlite3_temp_directory ){
strncpy(zTempPath, sqlite3_temp_directory, SQLITE_TEMPNAME_SIZE-30);
zTempPath[SQLITE_TEMPNAME_SIZE-30] = 0;
+ }else if( isNT() ){
+ char *zMulti;
+ WCHAR zWidePath[SQLITE_TEMPNAME_SIZE];
+ GetTempPathW(SQLITE_TEMPNAME_SIZE-30, zWidePath);
+ zMulti = unicodeToUtf8(zWidePath);
+ if( zMulti ){
+ memcpy(zTempPath, zMulti, SQLITE_TEMPNAME_SIZE-30);
+ zTempPath[SQLITE_TEMPNAME_SIZE-30] = 0;
+ sqliteFree(zMulti);
+ }
}else{
GetTempPathA(SQLITE_TEMPNAME_SIZE-30, zTempPath);
}
return SQLITE_OK;
}
-/*
-** Return true (non-zero) if we are running under WinNT, Win2K or WinXP.
-** Return false (zero) for Win95, Win98, or WinME.
-**
-** Here is an interesting observation: Win95, Win98, and WinME lack
-** the LockFileEx() API. But we can still statically link against that
-** API as long as we don't call it win running Win95/98/ME. A call to
-** this routine is used to determine if the host is Win95/98/ME or
-** WinNT/2K/XP so that we will know whether or not we can safely call
-** the LockFileEx() API.
-*/
-static int isNT(void){
- static int osType = 0; /* 0=unknown 1=win95 2=winNT */
- if( osType==0 ){
- OSVERSIONINFO sInfo;
- sInfo.dwOSVersionInfoSize = sizeof(sInfo);
- GetVersionEx(&sInfo);
- osType = sInfo.dwPlatformId==VER_PLATFORM_WIN32_NT ? 2 : 1;
- }
- return osType==2;
-}
-
/*
** Acquire a reader lock.
** Different API routines are called depending on whether or not this
** Check that a given pathname is a directory and is writable
**
*/
-int sqlite3OsIsDirWritable(char *zBuf){
+int sqlite3OsIsDirWritable(char *zDirname){
int fileAttr;
- if(! zBuf ) return 0;
- if(! isNT() && strlen(zBuf) > MAX_PATH ) return 0;
- fileAttr = GetFileAttributesA(zBuf);
+ WCHAR *zWide;
+ if( zDirname==0 ) return 0;
+ if( !isNT() && strlen(zDirname)>MAX_PATH ) return 0;
+ zWide = utf8ToUnicode(zDirname);
+ if( zWide ){
+ fileAttr = GetFileAttributesW(zWide);
+ sqliteFree(zWide);
+ }else{
+ fileAttr = GetFileAttributesA(zDirname);
+ }
if( fileAttr == 0xffffffff ) return 0;
if( (fileAttr & FILE_ATTRIBUTE_DIRECTORY) != FILE_ATTRIBUTE_DIRECTORY ){
return 0;
char *sqlite3OsFullPathname(const char *zRelative){
char *zNotUsed;
char *zFull;
+ WCHAR *zWide;
int nByte;
#ifdef __CYGWIN__
nByte = strlen(zRelative) + MAX_PATH + 1001;
if( zFull==0 ) return 0;
if( cygwin_conv_to_full_win32_path(zRelative, zFull) ) return 0;
#else
- nByte = GetFullPathNameA(zRelative, 0, 0, &zNotUsed) + 1;
- zFull = sqliteMalloc( nByte );
- if( zFull==0 ) return 0;
- GetFullPathNameA(zRelative, nByte, zFull, &zNotUsed);
+ zWide = utf8ToUnicode(zRelative);
+ if( zWide ){
+ WCHAR *zTemp, *zNotUsedW;
+ nByte = GetFullPathNameW(zWide, 0, 0, &zNotUsedW) + 1;
+ zTemp = sqliteMalloc( nByte*sizeof(zTemp[0]) );
+ if( zTemp==0 ) return 0;
+ GetFullPathNameW(zWide, nByte, zTemp, &zNotUsedW);
+ sqliteFree(zWide);
+ zFull = unicodeToUtf8(zTemp);
+ sqliteFree(zTemp);
+ }else{
+ nByte = GetFullPathNameA(zRelative, 0, 0, &zNotUsed) + 1;
+ zFull = sqliteMalloc( nByte*sizeof(zFull[0]) );
+ if( zFull==0 ) return 0;
+ GetFullPathNameA(zRelative, nByte, zFull, &zNotUsed);
+ }
#endif
return zFull;
}
projects / thirdparty / sqlite.git / commitdiff
