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PR_AttachSharedMemory
=====================
Attaches a memory segment previously opened with :ref:`PR_OpenSharedMemory`
and maps it into the process memory space.
Syntax
------
.. code::
#include <prshm.h>
.. code::
NSPR_API( void * )
PR_AttachSharedMemory(
PRSharedMemory *shm,
PRIntn flags
);
/* Define values for PR_AttachSharedMemory(...,flags) */
#define PR_SHM_READONLY 0x01
Parameters
~~~~~~~~~~
The function has these parameters:
shm
The handle returned from :ref:`PR_OpenSharedMemory`.
flags
Options for mapping the shared memory. ``PR_SHM_READONLY`` causes the
memory to be attached read-only.
Returns
~~~~~~~
Address where shared memory is mapped, or ``NULL`` if an error occurs.
Retrieve the reason for the failure by calling :ref:`PR_GetError` and
:ref:`PR_GetOSError`.