/*
* Initialize the statistics information to zero.
*/
void init_stats (void)
{
stats = (struct stat_s *) malloc_shared_memory (sizeof (struct stat_s));
if (stats == MAP_FAILED)
return;
memset (stats, 0, sizeof (struct stat_s));
}
/*
* Allocate a block of memory from the "shared" region an initialize it to
* zero.
*/
void *calloc_shared_memory(size_t nmemb, size_t size)
{
void *ptr;
long length;
assert(nmemb > 0);
assert(size > 0);
length = nmemb * size;
ptr = malloc_shared_memory(length);
if (ptr == MAP_FAILED)
return ptr;
memset(ptr, 0, length);
return ptr;
}
/*
* Create a pool of children to handle incoming connections
*/
short int child_pool_create (void)
{
unsigned int i;
/*
* Make sure the number of MaxClients is not zero, since this
* variable determines the size of the array created for children
* later on.
*/
if (child_config.maxclients == 0) {
log_message (LOG_ERR,
"child_pool_create: \"MaxClients\" must be "
"greater than zero.");
return -1;
}
if (child_config.startservers == 0) {
log_message (LOG_ERR,
"child_pool_create: \"StartServers\" must be "
"greater than zero.");
return -1;
}
child_ptr =
(struct child_s *) calloc_shared_memory (child_config.maxclients,
sizeof (struct child_s));
if (!child_ptr) {
log_message (LOG_ERR,
"Could not allocate memory for children.");
return -1;
}
servers_waiting =
(unsigned int *) malloc_shared_memory (sizeof (unsigned int));
if (servers_waiting == MAP_FAILED) {
log_message (LOG_ERR,
"Could not allocate memory for child counting.");
return -1;
}
*servers_waiting = 0;
/*
* Create a "locking" file for use around the servers_waiting
* variable.
*/
_child_lock_init ();
if (child_config.startservers > child_config.maxclients) {
log_message (LOG_WARNING,
"Can not start more than \"MaxClients\" servers. "
"Starting %u servers instead.",
child_config.maxclients);
child_config.startservers = child_config.maxclients;
}
for (i = 0; i != child_config.maxclients; i++) {
child_ptr[i].status = T_EMPTY;
child_ptr[i].connects = 0;
}
for (i = 0; i != child_config.startservers; i++) {
DEBUG2 ("Trying to create child %d of %d", i + 1,
child_config.startservers);
child_ptr[i].status = T_WAITING;
child_ptr[i].tid = child_make (&child_ptr[i]);
if (child_ptr[i].tid < 0) {
log_message (LOG_WARNING,
"Could not create child number %d of %d",
i, child_config.startservers);
return -1;
} else {
log_message (LOG_INFO,
"Creating child number %d of %d ...",
i + 1, child_config.startservers);
SERVER_INC ();
}
}
log_message (LOG_INFO, "Finished creating all children.");
return 0;
}
