RFR [9] 8035897 : FD_SETSIZE should be set on macosx

[Christos Zoulas]

On Aug 18,  5:42pm, fweimer at redhat.com (Florian Weimer) wrote:
-- Subject: Re: RFR [9] 8035897 : FD_SETSIZE should be set on macosx

| On 08/18/2014 05:36 PM, Christos Zoulas wrote:
| > On Aug 18,  5:10pm, fweimer at redhat.com (Florian Weimer) wrote:
| > -- Subject: Re: RFR [9] 8035897 : FD_SETSIZE should be set on macosx
| >
| > | On 02/28/2014 03:40 PM, Chris Hegarty wrote:
| > | > Either:
| > | >   1) FD_SETSIZE needs to be set to a larger value, but what value, the
| > | >      kernel limit, or other? This is wasteful for most typical apps that
| > | >      don't use large numbers of file descriptors. Or,
| > | >   2) If fd is greater than 1024, then an appropriate amount of memory
| > | >      could be allocated and cast to an fd_set. The FD_SET macro will
| > | >      write past FD_SETSIZE.
| > |
| > | 3) use poll
| > |
| > | Why do we have to use select here?
| >
| > Because poll is still broken on UDP sockets.
| 
| Ugh.  Can you provide details, such as affected platforms?  Thanks.

Just macos/x. Empty UDP packets don't make poll fire.

https://bugs.openjdk.java.net/browse/JDK-7131399?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

christos