int
owlist_add
(
OWList * list,
const void * element,
OWListCompare compare
)
{
OWListIterator * iterator ;
OWListNode * node ;
/* write lock */
iterator = owlist_iterator_new (list, OWLIST_WRITE) ;
if (iterator == NULL)
{
return -1 ;
}
/* check if the element is already in the list */
while (owlist_iterator_next (iterator) == 0)
{
if (owlist_compare (iterator->current->element, element, compare) == 0)
{
owlist_iterator_free (iterator) ;
return -1 ;
}
}
/* create a new node */
node = malloc (sizeof (OWListNode)) ;
if (node == NULL)
{
owlist_iterator_free (iterator) ;
return -1 ;
}
node->element = (void *) element ;
node->next = NULL ;
/* add the node at the end of the list */
if (list->first == NULL)
{
list->first = node ;
}
else
{
list->last->next = node ;
}
list->last = node ;
list->count ++ ;
/* write unlock */
if (owlist_iterator_free (iterator))
{
return -1 ;
}
return 0 ;
}
int
owlist_free_all
(
OWList * list,
void (* free_element) (void *)
)
{
int return_code = 0 ;
OWListIterator * iterator ;
void * element ;
iterator = owlist_iterator_new (list, OWLIST_WRITE) ;
if (iterator != NULL)
{
while (owlist_iterator_next (iterator) == 0)
{
element = owlist_iterator_get (iterator) ;
return_code |= owlist_iterator_remove (iterator) ;
free_element (element) ;
/* if free_element has a return code, it cannot be tested */
}
return_code |= owlist_iterator_free (iterator) ;
}
return_code |= owlist_free (list) ;
return return_code ;
}
int
owlist_contains
(
OWList * list,
const void * element,
OWListCompare compare
)
{
int return_code = -1 ;
OWListIterator * iterator ;
iterator = owlist_iterator_new (list, OWLIST_READ) ;
if (iterator == NULL)
{
return -1 ;
}
while (owlist_iterator_next (iterator) == 0)
{
if (owlist_compare (iterator->current->element, element, compare) == 0)
{
return_code = 0 ;
break ;
}
}
if (owlist_iterator_free (iterator))
{
return -1 ;
}
return return_code ;
}
int
owlist_remove_all
(
OWList * list
)
{
int return_code = 0 ;
OWListIterator * iterator ;
iterator = owlist_iterator_new (list, OWLIST_WRITE) ;
if (iterator == NULL)
{
return -1 ;
}
while (owlist_iterator_next (iterator) == 0)
{
free (iterator->current) ;
}
if (owlist_iterator_free (iterator))
{
return_code = -1 ;
}
list->first = NULL ;
list->last = NULL ;
list->count = 0 ;
return return_code ;
}
void *
owlist_remove
(
OWList * list,
const void * element,
OWListCompare compare
)
{
void * found = NULL ;
OWListIterator * iterator ;
iterator = owlist_iterator_new (list, OWLIST_WRITE) ;
if (iterator == NULL)
{
return NULL ;
}
while (owlist_iterator_next (iterator) == 0)
{
if (owlist_compare (iterator->current->element, element, compare) == 0)
{
found = iterator->current->element ;
owlist_iterator_remove (iterator) ;
break ;
}
}
if (owlist_iterator_free (iterator))
{
return NULL ;
}
return found ;
}
struct sockaddr *
transport_listening_address_get_first
(
TransportProtocol protocol,
OWSLAddressFamily address_family
)
{
OWListIterator * socket_list_iterator = NULL ;
struct sockaddr * address = NULL ;
address = transport_listening_address_get (protocol, address_family, & socket_list_iterator) ;
if (socket_list_iterator != NULL)
{
if (owlist_iterator_free (socket_list_iterator))
{
return NULL ;
}
}
return address ;
}
static OWSLSocket
transport_socket_get
(
TransportType type,
OWSLSocketType implementation,
const struct sockaddr * address,
int strict_address
)
{
OWSLSocketMode mode ;
OWList * list ;
OWListIterator * socket_list_iterator ;
OWSLSocket socket, best_socket = 0 ;
struct sockaddr * (* address_get) (OWSLSocket) = NULL ;
struct sockaddr * socket_address ;
int socket_found = 0 ;
mode = owsl_socket_type_mode_get (implementation) ;
list = transport_socket_list_get (type, mode) ;
if (list == NULL)
{
return -1 ;
}
if (address != NULL)
{
switch (type)
{
case TRANSPORT_DATA :
{
if (mode == OWSL_MODE_STREAM)
{
address_get = owsl_remote_address_get ;
}
break ;
}
case TRANSPORT_LISTENING :
{
address_get = owsl_bound_address_get ;
break ;
}
}
}
socket_list_iterator = owlist_iterator_new (list, OWLIST_READ) ;
if (socket_list_iterator == NULL)
{
return -1 ;
}
do
{
socket = transport_socket_get_next (implementation, socket_list_iterator) ;
if (socket > 0)
{
if (address_get != NULL)
{
socket_address = address_get (socket) ;
if (owsl_address_compare ((const struct sockaddr *) address, socket_address) == 0)
{
socket_found = 1 ;
}
else if (! strict_address)
{
best_socket = socket ;
}
}
else
{
socket_found = 1 ;
}
}
} while (! socket_found && socket > 0) ;
if (owlist_iterator_free (socket_list_iterator))
{
return -1 ;
}
return socket_found ? socket : (strict_address ? 0 : best_socket) ;
}
