Re: Porting from vxworks to linux

[David Brown]

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Hi:

I haven't actually played with it, but the 'MM Shared Memory Library' at
http://www.engelschall.com/sw/mm/ looks like a starting point.

According to the manual:
 "The MM library is a 2-layer abstraction library which simplifies the
  usage of shared memory between forked (and this way strongly related)
  processes under Unix platforms. On the first layer it hides all platform
  dependent implementation details (allocation and locking) when dealing
  with shared memory segments and on the second layer it provides a
  high-level malloc(3)-style API for a convenient and well known way to
  work with data-structures inside those shared memory segments."

BSD-style license and all that good stuff.

Regards,
- Dave
  [e-mail]

On Thu, Mar 21, 2002 at 04:09:51PM +0530, Amol Kumar Lad wrote:
> Hi ,
>   Sorry for posting this to wrong list. But you can help me out.
>=20
> I am porting some code from Vxworks to Linux (application level, not
> kernel).=20
> THe problem is , in Vxworks as there is a single address space so a 'mall=
oc'
> done by one process is visible to other process also, i.e. all the global
> data is shared in Vxworks across processes.
>=20
> This is not true in linux, as every process has its own address space.=20
> What could be done so that I can use same 'malloc' like interface and have
> all my 'global data'
> shared across process.=20
>=20
> I can understand that i have to use shared memory for this. Is there any
> library available
> that provides me a 'malloc' type interface for shared memory.
>=20
> All processes are unrelated processes ( fork -> exec)
>=20
> Thanks
> Amol
>=20
> -- please CC me..
> -
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>=20

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