u_result
u_readerGetMatchedPublications (
u_reader _this,
v_statusAction action,
c_voidp arg)
{
v_dataReader reader;
v_spliced spliced;
v_kernel kernel;
u_result result;
c_iter participants;
v_participant participant;
result = U_RESULT_PRECONDITION_NOT_MET;
if (_this != NULL) {
result = u_entityReadClaim(u_entity(_this), (v_entity*)(&reader));
if ((result == U_RESULT_OK) && (reader != NULL)) {
kernel = v_objectKernel(reader);
participants = v_resolveParticipants(kernel, V_SPLICED_NAME);
assert(c_iterLength(participants) == 1);
participant = v_participant(c_iterTakeFirst(participants));
spliced = v_spliced(participant);
c_free(participant);
c_iterFree(participants);
result = u_resultFromKernel(
v_splicedGetMatchedPublications(spliced, v_dataReader(reader), action, arg));
u_entityRelease(u_entity(_this));
}
}
return result;
}
void
cmx_participantParticipantsAction(
v_public p,
c_voidp args)
{
cmx_walkEntityArg arg;
c_iter participants;
v_entity participant;
c_bool proceed;
c_char* xmlEntity;
arg = cmx_walkEntityArg(args);
participants = v_resolveParticipants(v_objectKernel(p), "*");
participant = v_entity(c_iterTakeFirst(participants));
while(participant != NULL){
proceed = cmx_entityNewFromWalk(v_public(participant), &arg->entityArg);
if(proceed == TRUE){
xmlEntity = arg->entityArg.result;
arg->list = c_iterInsert(arg->list, xmlEntity);
arg->length += strlen(xmlEntity);
}
c_free(participant);
participant = v_entity(c_iterTakeFirst(participants));
}
c_iterFree(participants);
}
c_iter
v_partitionLookupSubscribers(
v_partition partition)
{
c_iter participants;
c_iter result;
c_iter entities;
c_iter partitions;
v_participant participant;
v_entity entity;
v_entity partition2;
result = NULL;
participants = v_resolveParticipants(v_objectKernel(partition), "*");
participant = v_participant(c_iterTakeFirst(participants));
while (participant != NULL) {
c_lockRead(&participant->lock);
entities = c_select(participant->entities, 0);
c_lockUnlock(&participant->lock);
entity = v_entity(c_iterTakeFirst(entities));
while (entity != NULL) {
if(v_objectKind(entity) == K_SUBSCRIBER) {
partitions = v_subscriberLookupPartitions(v_subscriber(entity),
v_partitionName(partition));
if (c_iterLength(partitions) > 0) {
result = c_iterInsert(result, entity); /* transfer refcount */
} else {
c_free(entity);
}
partition2 = v_entity(c_iterTakeFirst(partitions));
while (partition2 != NULL) {
c_free(partition2);
partition2 = v_entity(c_iterTakeFirst(partitions));
}
c_iterFree(partitions);
}
/* entity is already free or refcount transferred to result */
entity = v_entity(c_iterTakeFirst(entities));
}
c_iterFree(entities);
c_free(participant);
participant = v_participant(c_iterTakeFirst(participants));
}
c_iterFree(participants);
return result;
}
void
v_serviceInit(
v_service service,
const c_char *name,
const c_char *extStateName,
v_serviceType serviceType,
v_participantQos qos,
c_bool enable)
{
c_char *typeName;
os_duration lp = 300*OS_DURATION_SECOND;
v_kernel kernel;
v_serviceManager manager;
assert(service != NULL);
assert(serviceType != V_SERVICETYPE_NONE);
assert(C_TYPECHECK(service, v_service));
assert(C_TYPECHECK(qos, v_participantQos));
assert(name != NULL);
kernel = v_objectKernel(service);
manager = v_getServiceManager(kernel);
/* v_participantInit writes the DCPSParticipant and CMParticipant topics, but
* it downcasts to v_service to extract serviceType, and hence needs it available.
*/
service->serviceType = serviceType;
v_participantInit(v_participant(service), name, qos);
if(enable) {
(void)v_entityEnable(v_entity(service));
}
service->state = v_serviceManagerRegister(manager, service, extStateName);
service->lease = v_leaseMonotonicNew(kernel, lp);
service->newGroups = NULL;
if(service->lease)
{
v_result result;
result = v_leaseManagerRegister(
kernel->livelinessLM,
service->lease,
V_LEASEACTION_SERVICESTATE_EXPIRED,
v_public(service->state),
FALSE/*do not repeat */);
if(result != V_RESULT_OK)
{
c_free(service->lease);
service->lease = NULL;
OS_REPORT(OS_FATAL, "v_service", result,
"A fatal error was detected when trying to register the liveliness lease "
"to the liveliness lease manager of the kernel. The result code was %d.", result);
}
} else
{
OS_REPORT(OS_FATAL, "v_service", V_RESULT_INTERNAL_ERROR,
"Unable to create a liveliness lease! Most likely not enough shared "
"memory available to complete the operation.");
}
if(service->lease)/* aka everything is ok so far */
{
v_result result;
c_iter participants;
v_participant splicedParticipant;
participants = v_resolveParticipants(kernel, V_SPLICED_NAME);
assert(c_iterLength(participants) == 1 || 0 == strcmp(name, V_SPLICED_NAME));
splicedParticipant = v_participant(c_iterTakeFirst(participants));
if(splicedParticipant)
{
result = v_leaseManagerRegister(
v_participant(service)->leaseManager,
v_service(splicedParticipant)->lease,
V_LEASEACTION_SERVICESTATE_EXPIRED,
v_public(v_service(splicedParticipant)->state),
FALSE /* only observing, do not repeat */);
if(result != V_RESULT_OK)
{
c_free(service->lease);
service->lease = NULL;
OS_REPORT(OS_FATAL, "v_service", result,
"A fatal error was detected when trying to register the spliced's liveliness lease "
"to the lease manager of participant %p (%s). The result code was %d.", (void*)service, name, result);
}
c_free(splicedParticipant);
}
c_iterFree(participants);
}
if (service->state != NULL) {
/* check if state has correct type */
typeName = c_metaScopedName(c_metaObject(c_getType(c_object(service->state))));
if (extStateName == NULL) {
extStateName = VSERVICESTATE_NAME;
}
if (strcmp(typeName, extStateName) == 0) {
/* Splicedaemon may not observer itself! */
if (strcmp(name, V_SPLICED_NAME) != 0) {
v_serviceState splicedState;
splicedState = v_serviceManagerGetServiceState(manager, V_SPLICED_NAME);
(void)OSPL_ADD_OBSERVER(splicedState, service, V_EVENT_SERVICESTATE_CHANGED, NULL);
}
} else {
OS_REPORT(OS_ERROR, "v_service",
V_RESULT_ILL_PARAM, "Requested state type (%s) differs with existing state type (%s)",
extStateName, typeName);
c_free(service->state);
service->state = NULL;
}
os_free(typeName);
}
}
void
v_serviceInit(
v_service service,
v_serviceManager manager,
const c_char *name,
const c_char *extStateName,
v_participantQos qos,
v_statistics stats)
{
c_char *typeName;
v_duration lp = {300, 0};
v_kernel kernel;
assert(service != NULL);
assert(C_TYPECHECK(service, v_service));
assert(C_TYPECHECK(qos, v_participantQos));
assert(name != NULL);
kernel = v_objectKernel(service);
v_participantInit(v_participant(service), name, qos, stats, TRUE);
service->state = v_serviceManagerRegister(manager, service, extStateName);
service->lease = v_leaseNew(kernel, lp);
if(service->lease)
{
v_result result;
result = v_leaseManagerRegister(
kernel->livelinessLM,
service->lease,
V_LEASEACTION_SERVICESTATE_EXPIRED,
v_public(service->state),
FALSE/*do not repeat */);
if(result != V_RESULT_OK)
{
c_free(service->lease);
service->lease = NULL;
OS_REPORT_1(OS_ERROR, "v_service", 0,
"A fatal error was detected when trying to register the liveliness lease "
"to the liveliness lease manager of the kernel. The result code was %d.", result);
}
} else
{
OS_REPORT(OS_ERROR, "v_service", 0,
"Unable to create a liveliness lease! Most likely not enough shared "
"memory available to complete the operation.");
}
if(service->lease)/* aka everything is ok so far */
{
v_result result;
c_iter participants;
v_participant splicedParticipant;
participants = v_resolveParticipants(kernel, V_SPLICED_NAME);
assert(c_iterLength(participants) == 1 || 0 == strcmp(name, V_SPLICED_NAME));
splicedParticipant = v_participant(c_iterTakeFirst(participants));
if(splicedParticipant)
{
result = v_leaseManagerRegister(
v_participant(service)->leaseManager,
v_service(splicedParticipant)->lease,
V_LEASEACTION_SERVICESTATE_EXPIRED,
v_public(v_service(splicedParticipant)->state),
FALSE /* only observing, do not repeat */);
if(result != V_RESULT_OK)
{
c_free(service->lease);
service->lease = NULL;
OS_REPORT_3(OS_ERROR, "v_service", 0,
"A fatal error was detected when trying to register the spliced's liveliness lease "
"to the lease manager of participant %p (%s). The result code was %d.", service, name, result);
}
}
c_iterFree(participants);
}
if (service->state != NULL) {
/* check if state has correct type */
typeName = c_metaScopedName(c_metaObject(c_getType(c_object(service->state))));
if (extStateName == NULL) {
extStateName = VSERVICESTATE_NAME;
}
if (strcmp(typeName, extStateName) == 0) {
if (strcmp(name, V_SPLICED_NAME) != 0) {
/* Splicedaemon may not observer itself! */
v_serviceWatchSplicedaemon(service);
}
} else {
OS_REPORT_2(OS_ERROR, "v_service",
0, "Requested state type (%s) differs with existing state type (%s)",
extStateName, typeName);
c_free(service->state);
service->state = NULL;
}
os_free(typeName);
}
}
