Hello Ryan,
Thursday, February 21, 2008, 5:02:52 AM, you wrote:
values, determine that x = y, and just return (), but it's too late,
the missiles have already been launched.
it seems that asymmetrical answer of mr.Putin is just to hire a bit
more Haskell Hackers :)
--
Best regards,
Bulat
Hello John,
Tuesday, February 12, 2008, 9:28:22 PM, you wrote:
I was recently looking at the STM library, and I have a question about
the function unsafeIOToSTM. Can anyone explain to me what is unsafe
about it, and what sort of use would be considered safe?
STM operations can be repeated if
On 2/20/08, Bulat Ziganshin [EMAIL PROTECTED] wrote:
STM operations can be repeated if first transaction was unsuccessful.
so, you may se here only operations that may be safely repeated - say,
reading/writing memory areas, or reading/writing files, or even
sending network message as long as
I take it that this follows from the lack of any mechanism to rollback
IO? If so, I think that the following guidelines suffice for when
it's acceptable to use unsafeIOtoSTM:
1. The IO action must be able to be safely repeated.
2. The IO action must be able to be safely performed with
Stephan Friedrichs-2 wrote:
it's unsafe to perform IO inside of a transaction as it can't be undone,
when rolling it back. I guess, unsafeIOToSTM has been designed in order
to allow us to inject debugging output into a transaction, but you
really shouldn't use it to perform real IO
Hello,
I was recently looking at the STM library, and I have a question about
the function unsafeIOToSTM. Can anyone explain to me what is unsafe
about it, and what sort of use would be considered safe?
Thanks,
John
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Haskell-Cafe mailing list
Thanks. Both this answer and Luke's make perfect sense.
John
On Feb 12, 2008 12:41 PM, Stephan Friedrichs
[EMAIL PROTECTED] wrote:
Hello,
John Lato wrote:
I was recently looking at the STM library, and I have a question about
the function unsafeIOToSTM. Can anyone explain to me what is
Hello,
John Lato wrote:
I was recently looking at the STM library, and I have a question about
the function unsafeIOToSTM. Can anyone explain to me what is unsafe
about it, and what sort of use would be considered safe?
it's unsafe to perform IO inside of a transaction as it can't be undone,
On Feb 12, 2008 6:28 PM, John Lato [EMAIL PROTECTED] wrote:
Hello,
I was recently looking at the STM library, and I have a question about
the function unsafeIOToSTM. Can anyone explain to me what is unsafe
about it, and what sort of use would be considered safe?
A few things. First, this
