v_subscriber
v_participantGetBuiltinSubscriber(
v_participant p)
{
v_subscriberQos sQos;
v_readerQos rQos;
v_kernel kernel;
c_bool create_builtin_readers = FALSE;
assert(p != NULL);
assert(C_TYPECHECK(p, v_participant));
c_mutexLock(&p->builtinLock);
if (p->builtinSubscriber == NULL) {
kernel = v_objectKernel(p);
sQos = v_subscriberQosNew(kernel, NULL);
sQos->presentation.access_scope = V_PRESENTATION_TOPIC;
c_free(sQos->partition);
sQos->partition = c_stringNew(c_getBase(c_object(kernel)),
V_BUILTIN_PARTITION);
sQos->entityFactory.autoenable_created_entities = TRUE;
p->builtinSubscriber = v_subscriberNew(p, V_BUILTINSUBSCRIBER_NAME,
sQos, TRUE);
v_subscriberQosFree(sQos);
create_builtin_readers = TRUE;
c_mutexUnlock(&p->builtinLock);
assert(p->builtinSubscriber != NULL);
rQos = v_readerQosNew(kernel, NULL);
rQos->durability.kind = V_DURABILITY_TRANSIENT;
rQos->reliability.kind = V_RELIABILITY_RELIABLE;
rQos->history.kind = V_HISTORY_KEEPLAST;
rQos->history.depth = 1;
#define _CREATE_READER_(topicName) {\
q_expr expr; \
v_dataReader dr; \
expr = q_parse("select * from " topicName);\
dr = v_dataReaderNew(p->builtinSubscriber, topicName "Reader", \
expr, NULL, rQos, TRUE);\
c_free(dr); \
q_dispose(expr); \
}
_CREATE_READER_(V_PARTICIPANTINFO_NAME)
_CREATE_READER_(V_TOPICINFO_NAME)
_CREATE_READER_(V_PUBLICATIONINFO_NAME)
_CREATE_READER_(V_SUBSCRIPTIONINFO_NAME)
#undef _CREATE_READER_
v_readerQosFree(rQos);
} else {
c_mutexUnlock(&p->builtinLock);
}
return c_keep(p->builtinSubscriber);
}
v_networkReader
v_networkReaderNew(
v_subscriber subscriber,
const c_char *name,
v_readerQos qos,
c_bool ignoreReliabilityQoS)
{
/* Note: currently, no qos-es are supported. Everything is redirected
* to the defaultQueue */
v_kernel kernel;
v_networkReader reader;
v_readerQos q;
v_statistics s;
c_type queueType;
c_long i;
assert(C_TYPECHECK(subscriber,v_subscriber));
/* Creation */
kernel = v_objectKernel(subscriber);
q = v_readerQosNew(kernel,qos);
if (q != NULL) {
reader = v_networkReader(v_objectNew(kernel,K_NETWORKREADER));
s = v_statistics(v_networkReaderStatisticsNew(kernel));
/* Initialization of parent */
v_readerInit(v_reader(reader), name, subscriber, q, s, TRUE);
c_free(q); /* ref now in v_reader(queue)->qos */
/* This function only ever called once per network instance so no
* need to store queueType as static variable. Look up as needed (once)
*/
queueType = c_resolve(c_getBase(subscriber),"kernelModule::v_networkQueue");
/* Initialization of self */
reader->queues = NULL;
reader->queues = c_arrayNew(queueType, NW_MAX_NOF_QUEUES);
reader->nofQueues = 0;
reader->defaultQueue = NULL;
reader->remoteActivity = FALSE;
reader->ignoreReliabilityQoS = ignoreReliabilityQoS;
reader->queueCache = c_arrayNew(queueType, 2*NW_MAX_QUEUE_CACHE_PRIO);
for( i= 0; i < 2*NW_MAX_QUEUE_CACHE_PRIO; i++) {
reader->queueCache[i] = NULL;
}
c_free(queueType);
/* Add to subscriber */
v_subscriberAddReader(subscriber,v_reader(reader));
} else {
OS_REPORT(OS_ERROR, "v_networkReaderNew", 0,
"NetworkReader not created: inconsistent qos");
reader = NULL;
}
return reader;
}
v_deliveryService
v_deliveryServiceNew (
v_subscriber subscriber,
const c_char *name)
{
v_kernel kernel;
v_deliveryService _this;
v_readerQos q;
v_topic topic;
c_base base;
c_type type;
v_entry entry, found;
assert(C_TYPECHECK(subscriber,v_subscriber));
base = c_getBase(subscriber);
kernel = v_objectKernel(subscriber);
topic = v_lookupTopic (kernel, V_DELIVERYINFO_NAME);
/* ES, dds1576: Before creating the ackreader we have to verify that read
* access to the topic is allowed. We can accomplish this by checking the
* access mode of the topic.
*/
if(!topic)
{
OS_REPORT(OS_ERROR, "v_deliveryServiceNew",0,
"DeliveryService not created: "
"Could not locate topic with name DCPS_Delivery.");
return NULL;
}
if(v_topicAccessMode(topic) == V_ACCESS_MODE_READ ||
v_topicAccessMode(topic) == V_ACCESS_MODE_READ_WRITE)
{
q = v_readerQosNew(kernel,NULL);
if (q == NULL) {
OS_REPORT(OS_ERROR, "v_deliveryServiceNew", 0,
"DeliveryService not created: inconsistent qos");
return NULL;
}
_this = v_deliveryService(v_objectNew(kernel,K_DELIVERYSERVICE));
type = c_resolve(base, "kernelModule::v_deliveryGuard");
_this->guards = c_tableNew(type, "writerGID.localId");
c_free(type);
type = c_resolve(base, "kernelModule::v_subscriptionInfoTemplate");
_this->subscriptions = c_tableNew(type, "userData.key.systemId,userData.key.localId");
c_free(type);
q->userKey.enable = TRUE;
q->userKey.expression = NULL;
v_readerInit(v_reader(_this),name, subscriber,q, NULL, TRUE);
c_free(q);
entry = v_entry(v_deliveryServiceEntryNew(_this,topic));
found = v_readerAddEntry(v_reader(_this),v_entry(entry));
c_free(entry);
c_free(found);
v_deliveryServiceEnable(_this);
} else
{
OS_REPORT_1(OS_ERROR, "v_deliveryServiceNew", 0,
"Creation of DeliveryService <%s> failed. Topic DCPS_Delivery."
"does not have read access rights.", name);
_this = NULL;
}
return _this;
}
c_char*
cmx_dataReaderNew(
const c_char* subscriber,
const c_char* name,
const c_char* view,
const c_char* qos)
{
u_subscriber sub;
u_dataReader rea;
c_char* result;
cmx_entityArg arg;
u_result ur;
cmx_entityKernelArg kernelArg;
v_readerQos rqos;
q_expr qexpr;
result = NULL;
sub = u_subscriber(cmx_entityUserEntity(subscriber));
if(sub != NULL){
kernelArg = cmx_entityKernelArg(os_malloc(C_SIZEOF(cmx_entityKernelArg)));
u_entityAction(u_entity(sub),
cmx_entityKernelAction,
(c_voidp)kernelArg);
if(qos != NULL){
rqos = v_readerQos(cmx_qosKernelQosFromKind(qos, K_DATAREADER, c_getBase(c_object(kernelArg->kernel))));
if(rqos == NULL){
rqos = v_readerQosNew(kernelArg->kernel, NULL);
}
} else {
rqos = v_readerQosNew(kernelArg->kernel, NULL);
}
if(view != NULL){
qexpr = q_parse(view);
if(qexpr != NULL){
rea = u_dataReaderNew(sub, name, qexpr, NULL, rqos, TRUE);
q_dispose(qexpr);
} else {
rea = NULL;
OS_REPORT(OS_ERROR, CM_XML_CONTEXT, 0,
"cmx_dataReaderNew: invalid view expression.");
}
} else {
rea = u_dataReaderNew(sub, name, NULL, NULL, rqos, TRUE);
}
c_free(rqos);
os_free(kernelArg);
if(rea != NULL){
cmx_registerEntity(u_entity(rea));
arg = cmx_entityArg(os_malloc((os_uint32)(C_SIZEOF(cmx_entityArg))));
arg->entity = u_entity(rea);
arg->create = FALSE;
arg->participant = NULL;
arg->result = NULL;
ur = u_entityAction(u_entity(rea),
cmx_entityNewFromAction,
(c_voidp)(arg));
if(ur == U_RESULT_OK){
result = arg->result;
os_free(arg);
}
}
}
return result;
}
v_networkReader
v_networkReaderNew(
v_subscriber subscriber,
const c_char *name,
v_readerQos qos,
c_bool ignoreReliabilityQoS)
{
/* Note: currently, no qos-es are supported. Everything is redirected
* to the defaultQueue
*/
v_kernel kernel;
v_networkReader reader = NULL;
v_result r;
v_readerQos q;
c_type queueType;
c_long i;
assert(C_TYPECHECK(subscriber,v_subscriber));
/* Creation */
kernel = v_objectKernel(subscriber);
if (v_readerQosCheck(qos) == V_RESULT_OK) {
q = v_readerQosNew(kernel,qos);
if (q != NULL) {
reader = v_networkReader(v_objectNew(kernel,K_NETWORKREADER));
reader->statistics = v_networkReaderStatisticsNew(kernel);
/* Initialization of parent */
v_readerInit(v_reader(reader), name, subscriber, q);
(void)v_entityEnable(v_entity(reader));
c_free(q); /* ref now in v_reader(queue)->qos */
/* This function only ever called once per network instance so no
* need to store queueType as static variable. Look up as needed (once)
*/
queueType = c_resolve(c_getBase(subscriber),"kernelModuleI::v_networkQueue");
/* Initialization of self */
reader->queues = NULL;
reader->queues = c_arrayNew_s(queueType, NW_MAX_NOF_QUEUES);
if (!reader->queues) {
OS_REPORT(OS_ERROR, "v_networkReaderNew", V_RESULT_OUT_OF_MEMORY,
"Creation of NetworkReader <%s> failed: cannot create queues",
name);
goto err_alloc_queues;
}
reader->nofQueues = 0;
reader->defaultQueue = NULL;
reader->remoteActivity = FALSE;
reader->ignoreReliabilityQoS = ignoreReliabilityQoS;
reader->queueCache = c_arrayNew_s(queueType, 2*NW_MAX_QUEUE_CACHE_PRIO);
if (!reader->queueCache) {
OS_REPORT(OS_ERROR, "v_networkReaderNew", V_RESULT_OUT_OF_MEMORY,
"Creation of NetworkReader <%s> failed: cannot create queue cache",
name);
goto err_alloc_cache;
}
for( i= 0; i < 2*NW_MAX_QUEUE_CACHE_PRIO; i++) {
reader->queueCache[i] = NULL;
}
c_free(queueType);
/* Add to subscriber */
r = v_subscriberAddReader(subscriber,v_reader(reader));
if (r != V_RESULT_OK) {
OS_REPORT(OS_ERROR, "v_networkReaderNew", r,
"Creation of NetworkReader <%s> failed: cannot add reader to subscriber",
name);
goto err_add_reader;
}
} else {
OS_REPORT(OS_ERROR, "v_networkReaderNew", V_RESULT_OUT_OF_MEMORY,
"Creation of NetworkReader <%s> failed: cannot create reader QoS",
name);
reader = NULL;
}
}
return reader;
err_add_reader:
err_alloc_cache:
err_alloc_queues:
c_free(queueType);
c_free(reader);
return NULL;
}
