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Add large file support to Windows. Change large file support for Unix so

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that it compiles automatically - without requiring special options on the
compiler command line. (CVS 781)

FossilOrigin-Name: 2008b56fe11e49d52e28f47d14ccd70504e6c094
This commit is contained in:
drh
2002-11-06 14:08:11 +00:00
parent 20e9ab16d8
commit 829e802992
8 changed files with 59 additions and 46 deletions
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18
src/os.c
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@@ -14,8 +14,8 @@
** systems. The purpose of this file is to provide a uniform abstraction
** on which the rest of SQLite can operate.
*/
#include "os.h" /* Must be first to enable large file support */
#include "sqliteInt.h"
#include "os.h"
#if OS_UNIX
# include <time.h>
@@ -544,7 +544,10 @@ int sqliteOsSeek(OsFile *id, off_t offset){
return SQLITE_OK;
#endif
#if OS_WIN
SetFilePointer(id->h, offset, 0, FILE_BEGIN);
{
LONG upperBits = offset>>32;
SetFilePointer(id->h, offset, &upperBits, FILE_BEGIN);
}
return SQLITE_OK;
#endif
}
@@ -580,8 +583,11 @@ int sqliteOsTruncate(OsFile *id, off_t nByte){
return ftruncate(id->fd, nByte)==0 ? SQLITE_OK : SQLITE_IOERR;
#endif
#if OS_WIN
SetFilePointer(id->h, nByte, 0, FILE_BEGIN);
SetEndOfFile(id->h);
{
LONG upperBits = nByte>>32;
SetFilePointer(id->h, nByte, &upperBits, FILE_BEGIN);
SetEndOfFile(id->h);
}
return SQLITE_OK;
#endif
}
@@ -600,8 +606,10 @@ int sqliteOsFileSize(OsFile *id, off_t *pSize){
return SQLITE_OK;
#endif
#if OS_WIN
DWORD upperBits, lowerBits;
SimulateIOError(SQLITE_IOERR);
*pSize = GetFileSize(id->h, 0);
lowerBits = GetFileSize(id->h, &upperBits);
*pSize = (((off_t)upperBits)<<32) + lowerBits;
return SQLITE_OK;
#endif
}