Hi Mariano,��

�� �� �� it is supossed to be Posix, but Posix.1, it's another revision.

Since Solaris 10, it is supposed to supports all extensions of Posix (http://docs.oracle.com/cd/E19253-01/816-5175/standards-5/index.html) and Irix 6 (is discontinued, and is not Posix.1 compatible)

Also I can say that the GHC (Haskell) implementation assumes the value 1 for the constant, you can check the source code in:

https://hackage.haskell.org/package/posix-waitpid-0.1/docs/src/System-Posix-Waitpid.html#c_waitpid

I think is enough safe to have the 1 as a constant, if not you will have to generate a plugin for every platform.��

The other alternative is to read the constant value from the C Header, but is maybe an overkill.

Chers,

Pd: hace rato que estoy por aca, pero me cuesta responder, a veces va muy rapido y otras vuelan muy alto :).

On Tue, Dec 22, 2015 at 5:36 PM, Mariano Martinez Peck <marianopeck@gmail.com> wrote:

On Tue, Dec 22, 2015 at 5:24 PM, tesonep@gmail.com <tesonep@gmail.com> wrote:

Hello Mariano,��

�� �� ��WNOHANG is a constant is defined in sys/wait.h, after the compilation is not included in the object file.��

You will have to duplicate its value in the Smalltalk Code. It's value is 1, in linux is defined in��bits/waitflags.h as��

#define WNOHANG 1

mmmmmm but then I would need to take care about its different values in different OS right?��

I am reading for example this thread:��https://groups.google.com/forum/#!topic/comp.lang.python/_5rCpfYR_ZE

�� �� ��sunos 4.1.3 �� �� : #define WNOHANG 1
����������������Solaris 2.4 �� �� : #define WNOHANG 0100
����������������OSF1 2.0����������������: #define WNOHANG 0x1
����������������Ultrix 4.4����������������: #define WNOHANG 1
����������������irix 4.0.5C �� �� : #define WNOHANG 0x1
����������������irix 5.2 �� �� �� ��: #define WNOHANG 0100
����������������irix 6.0.1 �� �� ��: #define WNOHANG 0100

OK..the thread is from 1995... I thought the POSIX standard would standardize that...

I am now checking at��/Applications/Xcode.app/Contents/Developer/Platforms/MacOSX.platform/Developer/SDKs/MacOSX10.11.sdk/usr/include/sys/wait.h

and it says:

#define WNOHANG 0x00000001

But again..I wonder how portable is to stick to that...��

Ok...maybe I will need to go with a VM primitive as #primGetChildExitStatus: �� that way I can do the:

self cCode: 'waitpid ( pidToHandle, &exitStatus, WNOHANG )'�� inSmalltalk: [ exitStatus := -1 ].

pd: que groso Pablito verte por aca!!!!

��

Cheers,

Pablo

On Tue, Dec 22, 2015 at 5:12 PM, Mariano Martinez Peck <marianopeck@gmail.com> wrote:

Hi guys,

Say I want to call to waitpid like this:

waitpid(childID, &status, WNOHANG);

How can I do since I don't have access to WNOHANG int value in order to send it via argument .... ???

Any idea?

Thanks in advance,��

--��

Mariano
http://marianopeck.wordpress.com

--

Pablo Tesone.
tesonep@gmail.com

--

Mariano
http://marianopeck.wordpress.com

--

Pablo Tesone.
tesonep@gmail.com