Re: BeOS and IPC - try 999

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От
Peter Eisentraut
Тема
Re: BeOS and IPC - try 999
Дата
Msg-id
Pine.LNX.4.21.0006161431260.17284-100000@localhost.localdomain
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BeOS and IPC - try 999 "David Reid" <david@jetnet.co.uk>
Re: BeOS and IPC - try 999 Tom Lane <tgl@sss.pgh.pa.us>
Re: BeOS and IPC - try 999 Adam Haberlach <adam@newsnipple.com>
Re: BeOS and IPC - try 999 The Hermit Hacker <scrappy@hub.org>
Re: BeOS and IPC - try 999 Peter Eisentraut <peter_e@gmx.net>
David Reid writes:

> OK, agreed (up to a point).  So, you want easier maintenance?  The ONLY 
> way that I can think of doing it is to have the platform specific IPC 
> stuff in it's own file, hence this patch.

What I was thinking about is that you essentially create a wrapper library
of SysV-like functions that call the BEOS-specific functions, like

int
semctl(int semid, int semnum, int cmd, union semun arg)
{
    switch (cmd)
    {
        case IPC_RMID:
            delete_sem(semid);
            break;
	...
    }
}


int
semget(key_t key, int nsems, int semflg)
{
    create_sem(...);
}

etc. That way there's essentially zero maintenance overhead for both the
Unix and the Beos factions. And you'd be doing yourself and the world a
big favour when you're trying to port the next IPC heavy program.


-- 
Peter Eisentraut                  Sernanders väg 10:115
peter_e@gmx.net                   75262 Uppsala
http://yi.org/peter-e/            Sweden

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