boolean OCI_API OCI_DequeueFree
(
OCI_Dequeue *dequeue
)
{
OCI_CHECK_PTR(OCI_IPC_DEQUEUE, dequeue, FALSE);
/* Unsubscribe notification if needed */
if (dequeue->subhp != NULL)
{
OCI_DequeueUnsubscribe(dequeue);
}
/* free local message */
if (dequeue->msg != NULL)
{
OCI_MsgFree(dequeue->msg);
}
/* free local agent */
if (dequeue->agent != NULL)
{
OCI_AgentFree(dequeue->agent);
}
/* free OCI descriptor */
OCI_DescriptorFree((dvoid *) dequeue->opth, OCI_DTYPE_AQDEQ_OPTIONS);
/* free strings */
OCI_FREE(dequeue->name);
OCI_FREE(dequeue->pattern);
OCI_FREE(dequeue->consumer);
/* free misc. */
OCI_FREE(dequeue->agent_list);
OCI_FREE(dequeue);
return TRUE;
}
int main(int argc, char *argv[])
{
OCI_Connection *con;
OCI_Enqueue *enq;
OCI_Dequeue *deq1;
OCI_Dequeue *deq2;
OCI_Msg *msg;
OCI_TypeInfo *inf;
OCI_Object *obj;
OCI_Agent *agents[2];
OCI_Initialize(err_handler, NULL, OCI_ENV_DEFAULT | OCI_ENV_THREADED |OCI_ENV_EVENTS);
con = OCI_ConnectionCreate("db", "usr", "pwd", OCI_SESSION_DEFAULT);
OCI_Immediate(con, "create type my_message as object (title varchar2(50), content varchar2(50)) ");
OCI_QueueTableCreate(con, "my_queue_table", "my_message", NULL, NULL, TRUE, FALSE, NULL, 0,0,NULL);
OCI_QueueCreate(con, "my_queue", "my_queue_table", OCIT_NORMAL, 0, 0, 0, 0, NULL);
OCI_QueueStart(con, "my_queue", TRUE, TRUE);
agents[0] = OCI_AgentCreate(con, "C1", NULL);
agents[1] = OCI_AgentCreate(con, "C2", NULL);
inf = OCI_TypeInfoGet(con, "MY_MESSAGE", OCI_TIF_TYPE);
enq = OCI_EnqueueCreate(inf, "my_queue");
deq1 = OCI_DequeueCreate(inf, "my_queue");
deq2 = OCI_DequeueCreate(inf, "my_queue");
OCI_DequeueSetConsumer(deq1, "C1");
OCI_DequeueSetNavigation(deq1, OCI_ADN_FIRST_MSG);
OCI_DequeueSetConsumer(deq2, "C2");
OCI_DequeueSetNavigation(deq2, OCI_ADN_FIRST_MSG);
OCI_DequeueSubscribe(deq1, 9998, 0, on_message);
OCI_DequeueSubscribe(deq2, 9999, 0, on_message);
msg = OCI_MsgCreate(inf);
obj = OCI_ObjectCreate(con, inf);
OCI_ObjectSetString(obj, "TITLE", "NEXT MEETING");
OCI_ObjectSetString(obj, "CONTENT", "12:00 PM IN STARBUCKS");
OCI_MsgSetObject(msg, obj);
OCI_MsgSetConsumers(msg, agents, 2);
OCI_EnqueuePut(enq, msg);
OCI_MsgFree(msg);
OCI_ObjectFree(obj);
OCI_Commit(con);
getchar();
OCI_DequeueUnsubscribe(deq1);
OCI_DequeueUnsubscribe(deq2);
OCI_AgentFree(agents[0]);
OCI_AgentFree(agents[1]);
OCI_EnqueueFree(enq);
OCI_DequeueFree(deq1);
OCI_DequeueFree(deq2);
OCI_QueueStop(con, "my_queue", TRUE, TRUE, 0);
OCI_QueueDrop(con, "my_queue");
OCI_QueueTableDrop(con, "my_queue_table", TRUE);
OCI_Immediate(con, "drop type my_message");
OCI_ConnectionFree(con);
OCI_Cleanup();
return EXIT_SUCCESS;
}
boolean OCI_API OCI_MsgFree
(
OCI_Msg *msg
)
{
boolean res = TRUE;
OCI_CHECK_PTR(OCI_IPC_MSG, msg, FALSE);
/* free local OCI_Agent object */
if (msg->sender != NULL)
{
OCI_AgentFree(msg->sender);
}
/* free internal OCI_Object handle if payload is not RAW */
if (msg->obj != NULL)
{
msg->obj->hstate = OCI_OBJECT_ALLOCATED;
OCI_ObjectFree(msg->obj);
msg->obj = NULL;
}
/* free message RAW payload if necessary */
if ((msg->typinf->tcode == OCI_UNKNOWN)&& ( msg->id != NULL))
{
OCI_CALL2
(
res, msg->typinf->con,
OCIRawResize(msg->typinf->con->env, msg->typinf->con->err, 0, (OCIRaw **) &msg->payload)
)
}
/* free message ID */
if (msg->id != NULL)
{
OCI_CALL2
(
res, msg->typinf->con,
OCIRawResize(msg->typinf->con->env, msg->typinf->con->err, 0, (OCIRaw **) &msg->id)
)
}
msg->id = NULL;
/* free OCI descriptor */
OCI_DescriptorFree((dvoid *) msg->proph, OCI_DTYPE_AQMSG_PROPERTIES);
OCI_FREE(msg);
return res;
}
