[zeromq-dev] Mac OS X: test_shutdown_stress sometimes fails
dhammika at gmail.com
Sun Nov 21 16:03:41 CET 2010
On Fri, Nov 19, 2010 at 9:21 AM, Martin Sustrik <sustrik at 250bpm.com> wrote:
> On 11/19/2010 05:48 PM, Dhammika Pathirana wrote:
>> -1 for auto buffer resizing.
>> This is bound to go gaga anytime, and possibly has a remote trigger.
>> Different option is to send cmd_t struct pointers. It'll give about
>> 16K commands with 128K
>> socket buffer. But this will require malloc'ing cmd_t structs, or we
>> can use a ring.
> That can be optimised. No problem. The hard part is synchronising the state
> of internal fds (mailbox_t) with the queue of command_t's in such a way when
> the fd is signals POLLIN iff there's a command in the queue.
> Seems easy, but it's actually pretty hard. Maybe unsolvable? In any case,
> nasty race conditions tend to emerge. My feeling is we are getting to the
> edge of what can be done via POSIX API.
What if we make write a blocking call, then it's about making the reader fast.
I guess it's not a deadend.
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