New MiNT system calls: Dxreaddir()

Dxreaddir()

LONG Dxreaddir( len, handle, buf, xattr, xret )

WORD len;
LONG handle;
char *buf;
XATTR *xattr;
LONG *xret;

Dxreaddir() is the same as Dreaddir() except that it also returns (extended) attributes for a particular directory entry.

Opcode 322 (0x0142)

Availability Available when a 'MiNT' cookie with a version of at least 1.11 exists.

Parameters len, handle and buf arguments are identical to Dreaddir() call. xattr is a pointer to a structure containing extended attributes identical as for Fxattr(). xret is a pointer to a memory location which will be filled with an additional return value.

Binding
pea xret pea xattr pea buf move.l handle,-(sp) move.w len,-(sp) move.w #$0142,-(sp) trap #1 lea $12(sp),sp

Return Value Dxreaddir() returns the same error codes as Dreaddir() or E_OK on success.

Comments In fact, the Dxreaddir() just combines two separate VFS functions into one system call. Thus, because two separate functions are performed, two separate return values are returned. The one from Dreaddir() stage is returned in the GEMDOS return value, the other, from the Fxattr() stage, is returned at *xret. If the Dreaddir() fails, the call returns immediately, so the *xret is worth examinating only, if the GEMDOS return value is equal to E_OK.

See Also Dreaddir(), Fxattr()

	Dxreaddir() is the same as Dreaddir() except that it also returns (extended) attributes for a particular directory entry.

Opcode	322 (0x0142)

Availability	Available when a 'MiNT' cookie with a version of at least 1.11 exists.

Parameters	*len, handle* and *buf* arguments are identical to Dreaddir() call. *xattr* is a pointer to a structure containing extended attributes identical as for Fxattr(). xret is a pointer to a memory location which will be filled with an additional return value.

Binding	pea xret pea xattr pea buf move.l handle,-(sp) move.w len,-(sp) move.w #$0142,-(sp) trap #1 lea $12(sp),sp

Return Value	Dxreaddir() returns the same error codes as Dreaddir() or E_OK on success.

Comments	In fact, the Dxreaddir() just combines two separate VFS functions into one system call. Thus, because two separate functions are performed, two separate return values are returned. The one from Dreaddir() stage is returned in the GEMDOS return value, the other, from the Fxattr() stage, is returned at xret. If the Dreaddir()* fails, the call returns immediately, so the xret is worth examinating only, if the GEMDOS return value is equal to E_OK*.

See Also	Dreaddir(), Fxattr()