MESSAGES
-struct message *message_first = NULL;
-struct message **messagepointer_end = &message_first;
+struct lcr_msg *message_first = NULL;
+struct lcr_msg **messagepointer_end = &message_first;
+struct lcr_work message_work;
+
+static int work_message(struct lcr_work *work, void *instance, int index);
+
+void init_message(void)
+{
+ memset(&message_work, 0, sizeof(message_work));
+ add_work(&message_work, work_message, NULL, 0);
+}
+
+void cleanup_message(void)
+{
+ del_work(&message_work);
+}
+
+unsigned int lcr_random = 0;
/* creates a new message with the given attributes. the message must be filled then. after filling, the message_put must be called */
-struct message *message_create(int id_from, int id_to, int flow, int type)
+struct lcr_msg *message_create(int id_from, int id_to, int flow, int type)
{
- struct message *message;
+ struct lcr_msg *message;
+ struct timeval now_tv;
+ struct timezone now_tz;
+
+ gettimeofday(&now_tv, &now_tz);
+ lcr_random = (lcr_random << 1) | (lcr_random >> 31);
+ lcr_random ^= now_tv.tv_sec;
+ lcr_random ^= now_tv.tv_usec;
- message = (struct message *)MALLOC(sizeof(struct message));
+ message = (struct lcr_msg *)MALLOC(sizeof(struct lcr_msg));
if (!message)
FATAL("No memory for message.\n");
mmemuse++;
}
/* attaches a message to the end of the message chain */
-void message_put(struct message *message)
+void _message_put(struct lcr_msg *message, const char *file, int line)
{
- if (message->id_to == 0)
- {
+ if (message->id_to == 0) {
PDEBUG(DEBUG_MSG, "message %s not written, because destination is 0.\n", messages_txt[message->type]);
message_free(message);
return;
}
- if ((options.deb&DEBUG_MSG) && message->type != MESSAGE_DATA)
- PDEBUG(DEBUG_MSG, "message %s written from %ld to %ld (memory %x)\n", messages_txt[message->type], message->id_from, message->id_to, message);
+ if ((options.deb & DEBUG_MSG))
+ PDEBUG(DEBUG_MSG, "message %s written from %ld to %ld (memory %x at file %s, line %d)\n", messages_txt[message->type], message->id_from, message->id_to, message, file, line);
*messagepointer_end = message;
messagepointer_end = &(message->next);
+ /* Nullify next pointer if recycled messages */
+ *messagepointer_end=NULL;
+
+ /* trigger work */
+ trigger_work(&message_work);
}
-struct message *message_forward(int id_from, int id_to, int flow, union parameter *param)
+struct lcr_msg *message_forward(int id_from, int id_to, int flow, union parameter *param)
{
- struct message *message;
+ struct lcr_msg *message;
/* get point to message */
- message = (struct message *)((unsigned long)param - ((unsigned long)(&message->param) - (unsigned long)message));
+ message = (struct lcr_msg *)((unsigned long)param - ((unsigned long)(&message->param) - (unsigned long)message));
/* protect, so forwarded messages are not freed after handling */
message->keep = 1;
}
/* detaches the first messages from the message chain */
-struct message *message_get(void)
+struct lcr_msg *message_get(void)
{
- struct message *message;
+ struct lcr_msg *message;
if (!message_first)
- {
return(0);
- }
message = message_first;
message_first = message->next;
message->keep = 0;
- if ((options.deb&DEBUG_MSG) && message->type != MESSAGE_DATA)
-
+ if ((options.deb & DEBUG_MSG))
PDEBUG(DEBUG_MSG, "message %s reading from %ld to %ld (memory %x)\n", messages_txt[message->type], message->id_from, message->id_to, message);
return(message);
}
/* free a message */
-void message_free(struct message *message)
+void message_free(struct lcr_msg *message)
{
if (message->keep)
return;
- FREE(message, sizeof(struct message));
+ FREE(message, sizeof(struct lcr_msg));
mmemuse--;
}
+static int work_message(struct lcr_work *work, void *instance, int index)
+{
+ struct lcr_msg *message;
+ class Port *port;
+ class Endpoint *epoint;
+ class Join *join;
+
+ while ((message = message_get())) {
+ switch(message->flow) {
+ case PORT_TO_EPOINT:
+ epoint = find_epoint_id(message->id_to);
+ if (epoint) {
+ if (epoint->ep_app) {
+ epoint->ep_app->ea_message_port(message->id_from, message->type, &message->param);
+ } else {
+ PDEBUG(DEBUG_MSG, "Warning: message %s from port %d to endpoint %d. endpoint doesn't have an application.\n", messages_txt[message->type], message->id_from, message->id_to);
+ }
+ } else {
+ PDEBUG(DEBUG_MSG, "Warning: message %s from port %d to endpoint %d. endpoint doesn't exist anymore.\n", messages_txt[message->type], message->id_from, message->id_to);
+ }
+ break;
+
+ case EPOINT_TO_JOIN:
+ join = find_join_id(message->id_to);
+ if (join) {
+ join->message_epoint(message->id_from, message->type, &message->param);
+ } else {
+ PDEBUG(DEBUG_MSG, "Warning: message %s from endpoint %d to join %d. join doesn't exist anymore\n", messages_txt[message->type], message->id_from, message->id_to);
+ }
+ break;
+
+ case JOIN_TO_EPOINT:
+ epoint = find_epoint_id(message->id_to);
+ if (epoint) {
+ if (epoint->ep_app) {
+ epoint->ep_app->ea_message_join(message->id_from, message->type, &message->param);
+ } else {
+ PDEBUG(DEBUG_MSG, "Warning: message %s from join %d to endpoint %d. endpoint doesn't have an application.\n", messages_txt[message->type], message->id_from, message->id_to);
+ }
+ } else {
+ PDEBUG(DEBUG_MSG, "Warning: message %s from join %d to endpoint %d. endpoint doesn't exist anymore.\n", messages_txt[message->type], message->id_from, message->id_to);
+ }
+ break;
+
+ case EPOINT_TO_PORT:
+ port = find_port_id(message->id_to);
+ if (port) {
+ port->message_epoint(message->id_from, message->type, &message->param);
+BUDETECT
+ } else {
+ PDEBUG(DEBUG_MSG, "Warning: message %s from endpoint %d to port %d. port doesn't exist anymore\n", messages_txt[message->type], message->id_from, message->id_to);
+ }
+ break;
+
+ default:
+ PERROR("Message flow %d unknown.\n", message->flow);
+ }
+ message_free(message);
+ }
+
+ return 0;
+}
+
projects / lcr.git / blobdiff