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// $Id$
// Again, the common stuff
#include "shmem.h"
#if defined(ACE_LACKS_SYSV_SHMEM)
int
main (int, char *[])
{
ACE_ERROR_RETURN ((LM_ERROR,
"System V Shared Memory not available on this platform\n"),
100);
}
#else // ACE_LACKS_SYSV_SHMEM
int
main (int, char *[])
{
/*
Attach ourselves to the shared memory segment.
*/
ACE_Shared_Memory_SV shm_client (SHM_KEY, SHMSZ);
/*
Get our reference to the segment...
*/
char *shm = (char *) shm_client.malloc ();
/*
If the segment identified by SHM_KEY didn't exist then we'll
get back a 0 from malloc(). You should do this check even
if you include the CREATE flag 'cause you never know when it
might fail.
*/
if (shm == 0)
ACE_ERROR_RETURN ((LM_ERROR,
"(%P|%t) Could not get the segment!\n"),
100);
/*
Does this match what your server said?
*/
ACE_DEBUG ((LM_INFO,
"(%P|%t) Shared Memory is at 0x%x\n",
shm ));
/*
Show the shared data to the user and convert it all to
uppper-case along the way.
*/
for (char *s = shm; *s != '\0'; s++)
{
putchar (*s);
*s = toupper(*s);
}
putchar ('\n');
/*
Flag the server that we're done.
*/
*shm = '*';
/*
Here, we use close() instead of remove(). Remember, that
will just remove our attachment to the segment. Look
closely at the 'nattch' column of the ipcs output & you'll
see that this decrements it by one.
*/
shm_client.close();
return 0;
}
#endif /* ACE_LACKS_SYSV_SHMEM */
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