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RE : [lwip-users] New requirement for ports: sys_arch_mbox_tryfetch
From: |
Frédéric BERNON |
Subject: |
RE : [lwip-users] New requirement for ports: sys_arch_mbox_tryfetch |
Date: |
Thu, 12 Apr 2007 02:57:21 +0200 |
I think it will be good to update sys_arch.txt with this new information...
About the macro you suggest, is it something like this :
#define sys_arch_mbox_tryfetch(mbox,msg) sys_arch_mbox_fetch(mbox,msg,1)
?
====================================
Frédéric BERNON
HYMATOM SA
Chef de projet informatique
Microsoft Certified Professional
Tél. : +33 (0)4-67-87-61-10
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====================================
P Avant d'imprimer, penser à l'environnement
-----Message d'origine-----
De : address@hidden [mailto:address@hidden De la part de Jonathan Larmour
Envoyé : mercredi 11 avril 2007 17:47
À : Mailing list for lwIP users
Objet : [lwip-users] New requirement for ports: sys_arch_mbox_tryfetch
To avoid some near-polling in netconn_delete(), there is now (in CVS) a new
function that ports must implement, declared in lwip/sys.h:
u32_t sys_arch_mbox_tryfetch(sys_mbox_t mbox, void **msg);
This function must attempt to retrieve a message, or if none is present, it
should return immediately with SYS_MBOX_EMPTY.
As an alternative, the port can define a function-like macro in
arch/sys_arch.h so that calls to sys_arch_mbox_tryfetch can be something
more arbitrary than a function.
Jifl
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- RE : [lwip-users] New requirement for ports: sys_arch_mbox_tryfetch,
Frédéric BERNON <=