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// $Id$
#include "ace/Shared_Memory_MM.h"
#define SHMSZ 27
char shm_key[] = "/tmp/fooXXXXXX";
static void
client (void)
{
ACE_Shared_Memory *shm_client = new ACE_Shared_Memory_MM (shm_key);
char *shm = (char *) shm_client->malloc ();
for (char *s = shm; *s != '\0'; s++)
putchar (*s);
putchar ('\n');
*shm = '*';
}
static void
server (void)
{
ACE_Shared_Memory *shm_server = new ACE_Shared_Memory_MM (shm_key, SHMSZ);
char *shm = (char *) shm_server->malloc ();
char *s = shm;
for (char c = 'a'; c <= 'z'; c++)
*s++ = c;
*s = '\0';
// Perform a busy wait (ugh)
while (*shm != '*')
ACE_OS::sleep (1);
if (shm_server->remove () < 0)
ACE_ERROR ((LM_ERROR, "%p\n", "remove"));
ACE_OS::unlink (shm_key);
}
int
main (int, char *[])
{
if (ACE_OS::mktemp (shm_key) == 0 || (ACE_OS::unlink (shm_key) == -1 && errno == EPERM))
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", shm_key), 1);
switch (ACE_OS::fork ())
{
case -1:
ACE_ERROR_RETURN ((LM_ERROR, "%p\n", "fork"), 1);
case 0:
// Make sure the server starts up first.
ACE_OS::sleep (1);
client ();
break;
default:
server ();
break;
}
return 0;
}
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