edchan

Which is better? What are the trade offs, advantages/disadvantages of
using one over the other?

Thanks,
Ed

scherbina vladimir

That depends on what you're trying to achieve.

The main disadvantage of AcceptEx is that function is not supported on
Windows Me/98/95.

From MSDN:

"The AcceptEx function combines several socket functions into a single
API/kernel transition. The AcceptEx function, when successful, performs
three tasks:

- A new connection is accepted.
- Both the local and remote addresses for the connection are returned.
- The first block of data sent by the remote is received."

So it should work faster then WSAAccept. Another plus is that AcceptEx
function uses overlapped I/O, unlike the accept function. You may read the
differences between AcceptEx(...) and accept(...) in MSDN site:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/acceptex_2.asp

accept(...) simply calls inside WSAAccept(...).

--
Vladimir

vadym stetsyak

Also WSAAccept supports conditional accept through application-specified condition function that will make an accept/reject decision based on the caller information.

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

arkady frenkel

In addition be aware of possible problems with SO_CONDITIONAL_ACCEPT in
WSAAccept() http://support.microsoft.com/?id=328264

Arkady

edchan

Which is better? What are the trade offs, advantages/disadvantages of
using one over the other?

Thanks,
Ed

scherbina vladimir

That depends on what you're trying to achieve.

The main disadvantage of AcceptEx is that function is not supported on
Windows Me/98/95.

From MSDN:

"The AcceptEx function combines several socket functions into a single
API/kernel transition. The AcceptEx function, when successful, performs
three tasks:

- A new connection is accepted.
- Both the local and remote addresses for the connection are returned.
- The first block of data sent by the remote is received."

So it should work faster then WSAAccept. Another plus is that AcceptEx
function uses overlapped I/O, unlike the accept function. You may read the
differences between AcceptEx(...) and accept(...) in MSDN site:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/winsock/winsock/acceptex_2.asp

accept(...) simply calls inside WSAAccept(...).

--
Vladimir

vadym stetsyak

Also WSAAccept supports conditional accept through application-specified condition function that will make an accept/reject decision based on the caller information.

--
Regards, Vadym Stetsyak
www: http://vadmyst.blogspot.com

arkady frenkel

In addition be aware of possible problems with SO_CONDITIONAL_ACCEPT in
WSAAccept() http://support.microsoft.com/?id=328264

Arkady