int main(void)
{
apr_status_t rv;
apr_pool_t *pool;
apr_shm_t *shm;
int recvd;
apr_initialize();
if (apr_pool_create(&pool, NULL) != APR_SUCCESS) {
exit(-1);
}
rv = apr_shm_attach(&shm, SHARED_FILENAME, pool);
if (rv != APR_SUCCESS) {
exit(-2);
}
boxes = apr_shm_baseaddr_get(shm);
/* consume messages on all of the boxes */
recvd = msgwait(30, 0, N_BOXES); /* wait for 30 seconds for messages */
rv = apr_shm_detach(shm);
if (rv != APR_SUCCESS) {
exit(-3);
}
return recvd;
}
static void test_anon(abts_case *tc, void *data)
{
apr_proc_t proc;
apr_status_t rv;
apr_shm_t *shm;
apr_size_t retsize;
int cnt, i;
int recvd;
rv = apr_shm_create(&shm, SHARED_SIZE, NULL, p);
APR_ASSERT_SUCCESS(tc, "Error allocating shared memory block", rv);
ABTS_PTR_NOTNULL(tc, shm);
retsize = apr_shm_size_get(shm);
ABTS_INT_EQUAL(tc, SHARED_SIZE, retsize);
boxes = apr_shm_baseaddr_get(shm);
ABTS_PTR_NOTNULL(tc, boxes);
rv = apr_proc_fork(&proc, p);
if (rv == APR_INCHILD) { /* child */
int num = msgwait(5, 0, N_BOXES);
/* exit with the number of messages received so that the parent
* can check that all messages were received.
*/
exit(num);
}
else if (rv == APR_INPARENT) { /* parent */
i = N_BOXES;
cnt = 0;
while (cnt++ < N_MESSAGES) {
if ((i-=3) < 0) {
i += N_BOXES; /* start over at the top */
}
msgput(i, MSG);
apr_sleep(apr_time_make(0, 10000));
}
}
else {
ABTS_FAIL(tc, "apr_proc_fork failed");
}
/* wait for the child */
rv = apr_proc_wait(&proc, &recvd, NULL, APR_WAIT);
ABTS_INT_EQUAL(tc, N_MESSAGES, recvd);
rv = apr_shm_destroy(shm);
APR_ASSERT_SUCCESS(tc, "Error destroying shared memory block", rv);
}
static apr_status_t test_anon(apr_pool_t *parpool)
{
apr_status_t rv;
apr_pool_t *pool;
apr_shm_t *shm;
apr_size_t retsize;
pid_t pid;
int cnt, i, exit_int;
rv = apr_pool_create(&pool, parpool);
if (rv != APR_SUCCESS) {
fprintf(stderr, "Error creating child pool\n");
return rv;
}
printf("Creating anonymous shared memory block (%"
APR_SIZE_T_FMT " bytes)........", SHARED_SIZE);
rv = apr_shm_create(&shm, SHARED_SIZE, NULL, pool);
if (rv != APR_SUCCESS) {
fprintf(stderr, "Error allocating shared memory block\n");
return rv;
}
fprintf(stdout, "OK\n");
printf("Checking size...%" APR_SIZE_T_FMT " bytes...",
retsize = apr_shm_size_get(shm));
if (retsize != SHARED_SIZE) {
fprintf(stderr, "Error allocating shared memory block\n");
return rv;
}
fprintf(stdout, "OK\n");
printf("Allocating shared mbox memory for %d boxes ..............",
N_BOXES);
boxes = apr_shm_baseaddr_get(shm);
if (boxes == NULL) {
fprintf(stderr, "Error creating message boxes.\n");
return rv;
}
fprintf(stdout, "OK\n");
printf("Shared Process Test (child/parent)\n");
pid = fork();
if (pid == 0) { /* child */
msgwait(5, 0, N_BOXES);
exit(0);
}
else if (pid > 0) { /* parent */
i = N_BOXES;
cnt = N_MESSAGES;
while (--cnt > 0) {
if ((i-=3) < 0) {
i += N_BOXES; /* start over at the top */
}
msgput(i, "Sending a message\n");
apr_sleep(apr_time_make(0, 10000));
}
}
else {
printf("Error creating a child process\n");
return errno;
}
/* wait for the child */
printf("Waiting for child to exit.\n");
if (waitpid(pid, &exit_int, 0) < 0) {
return errno;
}
printf("Destroying shared memory segment...");
rv = apr_shm_destroy(shm);
if (rv != APR_SUCCESS) {
printf("FAILED\n");
return rv;
}
printf("OK\n");
apr_pool_destroy(pool);
return APR_SUCCESS;
}