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Overview
| Comment: | Change OS/2 version of sqlite3Os2FullPathname() for cross-compiler compatibility: - allocate zBuff on demand (restricted stack space on old compilers) - 2 bytes in zDrive in include '\0' - pass drive number to DosQueryCurrentDir() instead of 0 to make EMX work - zFull does not need to be preallocated (CVS 4149) |
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| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
cc2105176563c352a6dccef89a429a76 |
| User & Date: | pweilbacher 2007-07-01 15:41:03 |
Context
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2007-07-01
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| 21:18 | Remove an unnecessary temporary variable for clarity of presentation in a loop that GCC 4.2.0 is miscompiling. Ticket #2469. GCC 4.2.0 miscompiles this loop regardless of whether or not the temporary variable is used, but by removing the variable, we hope to make it easier to explain the problem to GCC maintainers. The error only appears if -ftree-vrp is used (which is turned on by -O2). (CVS 4150) (check-in: 35ae398b user: drh tags: trunk) | |
| 15:41 | Change OS/2 version of sqlite3Os2FullPathname() for cross-compiler compatibility: - allocate zBuff on demand (restricted stack space on old compilers) - 2 bytes in zDrive in include '\0' - pass drive number to DosQueryCurrentDir() instead of 0 to make EMX work - zFull does not need to be preallocated (CVS 4149) (check-in: cc210517 user: pweilbacher tags: trunk) | |
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2007-06-30
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| 16:30 | Including os2safe.h from os_os2.c is no longer necessary (now that it's including from os.h) (CVS 4148) (check-in: 6432bbe1 user: pweilbacher tags: trunk) | |
Changes
Changes to src/os_os2.c.
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** is no longer needed.
*/
char *sqlite3Os2FullPathname( const char *zRelative ){
char *zFull = 0;
if( strchr(zRelative, ':') ){
sqlite3SetString( &zFull, zRelative, (char*)0 );
}else{
char zBuff[SQLITE_TEMPNAME_SIZE - 2] = {0};
char zDrive[1] = {0};
ULONG cbzFullLen = SQLITE_TEMPNAME_SIZE;
ULONG ulDriveNum = 0;
ULONG ulDriveMap = 0;
DosQueryCurrentDisk( &ulDriveNum, &ulDriveMap );
DosQueryCurrentDir( 0L, zBuff, &cbzFullLen );
zFull = sqliteMalloc( cbzFullLen );
sprintf( zDrive, "%c", (char)('A' + ulDriveNum - 1) );
sqlite3SetString( &zFull, zDrive, ":\\", zBuff, "\\", zRelative, (char*)0 );
}
return zFull;
}
/*
** The fullSync option is meaningless on os2, or correct me if I'm wrong. This is a no-op.
** From os_unix.c: Change the value of the fullsync flag in the given file descriptor.
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** is no longer needed.
*/
char *sqlite3Os2FullPathname( const char *zRelative ){
char *zFull = 0;
if( strchr(zRelative, ':') ){
sqlite3SetString( &zFull, zRelative, (char*)0 );
}else{
ULONG ulDriveNum = 0;
ULONG ulDriveMap = 0;
ULONG cbzBufLen = SQLITE_TEMPNAME_SIZE;
char zDrive[2];
char *zBuff;
zBuff = sqliteMalloc( cbzBufLen );
if( zBuff != 0 ){
DosQueryCurrentDisk( &ulDriveNum, &ulDriveMap );
if( DosQueryCurrentDir( ulDriveNum, zBuff, &cbzBufLen ) == NO_ERROR ){
sprintf( zDrive, "%c", (char)('A' + ulDriveNum - 1) );
sqlite3SetString( &zFull, zDrive, ":\\", zBuff,
"\\", zRelative, (char*)0 );
}
sqliteFree( zBuff );
}
}
return zFull;
}
/*
** The fullSync option is meaningless on os2, or correct me if I'm wrong. This is a no-op.
** From os_unix.c: Change the value of the fullsync flag in the given file descriptor.
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