It seems to me like if it is in TSD data then the macro for setting it
should be in errno.h.
I'm surprised that it is defined as a function in errno.h.... since
functions can't be lvalues.
Of course, assignment to errno from a separate library probably isn't
such a hot idea. Better, IMO, to pass an error number on a stack
somewhere (or in a register) than relying on global variables...
-- Garrett
Richard L. Hamilton wrote:
Sometimes library functions as well as system calls need to set errno.
Depending on whether something is linked with _REENTRANT or not, errno
may be per-thread, or global.
libc has internal magic to do the right thing regardless of whether or not what
it is
dynamically linked to was compiled with _REENTRANT.
But it does not appear to make that magic publically available.
How could one create a public routine meant to be in a shared (or static)
library, that needs
to set errno, and do it properly regardless of whether or not what it was
linked with set _REENTRANT
(and included errno.h)?
Anyone know how (or whether) other OSs handle this?
This message posted from opensolaris.org
_______________________________________________
opensolaris-code mailing list
[email protected]
http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
_______________________________________________
opensolaris-code mailing list
[email protected]
http://mail.opensolaris.org/mailman/listinfo/opensolaris-code
