PR_DetachSharedMemory
Unmaps a shared memory segment identified by name.
Syntax
#include <prshm.h>
NSPR_API( PRStatus )
  PR_DetachSharedMemory(
     PRSharedMemory *shm,
     void  *addr
);
Parameters
The function has these parameters:
- shm
 The handle returned from PR_OpenSharedMemory.
- addr
 The address to which the shared memory segment is mapped.