/*
* Created: Tue Nov 25 19:25:33 GMT+0200 1997
*/
-/*
- * $Id$
- * $Log$
- * Revision 1.1.1.1 2000/06/27 11:36:55 priikone
- * Importet from internal CVS/Added Log headers.
- *
- *
- */
+/* $Id$ */
#include "silcincludes.h"
#include "silcprotocol.h"
+/* Dynamically registered protocols */
+SilcProtocolObject *silc_protocol_list = NULL;
+
+/* Dynamically registers new protocol. The protocol is added into protocol
+ list and can be unregistered with silc_protocol_unregister. */
+
+void silc_protocol_register(SilcProtocolType type,
+ SilcProtocolCallback callback)
+{
+ SilcProtocolObject *new;
+
+ new = silc_calloc(1, sizeof(*new));
+ new->type = type;
+ new->callback = callback;
+
+ if (!silc_protocol_list)
+ silc_protocol_list = new;
+ else {
+ new->next = silc_protocol_list;
+ silc_protocol_list = new;
+ }
+}
+
+/* Unregisters protocol. The unregistering is done by both protocol type
+ and the protocol callback. */
+
+void silc_protocol_unregister(SilcProtocolType type,
+ SilcProtocolCallback callback)
+{
+ SilcProtocolObject *protocol, *prev;
+
+ protocol = silc_protocol_list;
+ prev = NULL;
+ while (protocol && (protocol->type != type &&
+ protocol->callback != callback)) {
+ prev = protocol;
+ protocol = protocol->next;
+ }
+
+ if (protocol) {
+ if (prev)
+ prev->next = protocol->next;
+ else
+ silc_protocol_list = protocol->next;
+
+ silc_free(protocol);
+ }
+}
+
/* Allocates a new protocol object. The new allocated and initialized
protocol is returned to the new_protocol argument. The argument context
is the context to be sent as argument for the protocol. The callback
void silc_protocol_alloc(SilcProtocolType type, SilcProtocol *new_protocol,
void *context, SilcProtocolFinalCallback callback)
{
- int i;
+ SilcProtocolObject *protocol;
SILC_LOG_DEBUG(("Allocating new protocol type %d", type));
- for (i = 0; silc_protocol_list[i].callback; i++)
- if (silc_protocol_list[i].type == type)
- break;
+ protocol = silc_protocol_list;
+ while (protocol && protocol->type != type)
+ protocol = protocol->next;
- if (!silc_protocol_list[i].callback) {
+ if (!protocol) {
SILC_LOG_ERROR(("Requested protocol does not exists"));
+ *new_protocol = NULL;
return;
}
*new_protocol = silc_calloc(1, sizeof(**new_protocol));
- if (*new_protocol == NULL) {
- SILC_LOG_ERROR(("Cannot allocate new protocol object"));
- return;
- }
-
- (*new_protocol)->protocol = (SilcProtocolObject *)&silc_protocol_list[i];
+ (*new_protocol)->protocol = protocol;
(*new_protocol)->state = SILC_PROTOCOL_STATE_UNKNOWN;
(*new_protocol)->context = context;
- (*new_protocol)->execute = silc_protocol_execute;
- (*new_protocol)->execute_final = silc_protocol_execute_final;
(*new_protocol)->final_callback = callback;
}
-/* Free's a protocol object. */
+/* Frees a protocol object. */
void silc_protocol_free(SilcProtocol protocol)
{
/* Executes next state of the protocol. The state must be set before
calling this function. */
-void silc_protocol_execute(void *qptr, int type,
- void *context, int fd,
+void silc_protocol_execute(SilcProtocol protocol, SilcSchedule schedule,
long secs, long usecs)
{
- SilcProtocol protocol = (SilcProtocol)context;
-
- SILC_LOG_DEBUG(("Start"));
-
if (secs + usecs)
- silc_task_register(qptr, fd, protocol->protocol->callback, context,
- secs, usecs,
- SILC_TASK_TIMEOUT,
- SILC_TASK_PRI_NORMAL);
+ silc_schedule_task_add(schedule, 0,
+ protocol->protocol->callback, (void *)protocol,
+ secs, usecs,
+ SILC_TASK_TIMEOUT,
+ SILC_TASK_PRI_NORMAL);
else
- protocol->protocol->callback(qptr, 0, context, fd);
+ protocol->protocol->callback(schedule, 0, 0, (void *)protocol);
}
/* Executes the final callback of the protocol. */
-void silc_protocol_execute_final(void *qptr, int type,
- void *context, int fd)
+void silc_protocol_execute_final(SilcProtocol protocol, SilcSchedule schedule)
{
- SilcProtocol protocol = (SilcProtocol)context;
-
- SILC_LOG_DEBUG(("Start, state=%d", protocol->state));
+ protocol->final_callback(schedule, 0, 0, (void *)protocol);
+}
+
+/* Cancels the execution of the next state of the protocol. */
- protocol->final_callback(qptr, 0, context, fd);
+void silc_protocol_cancel(SilcProtocol protocol, SilcSchedule schedule)
+{
+ silc_schedule_task_del_by_context(schedule, protocol);
}