v_deadLineInstanceList
v_deadLineInstanceListNew(
c_base base,
v_leaseManager leaseManager,
v_duration leaseDuration,
v_leaseActionId actionId,
v_public o)
{
v_deadLineInstanceList list;
c_type type;
assert(C_TYPECHECK(leaseManager,v_leaseManager));
assert(C_TYPECHECK(o,v_public));
type = c_resolve(base, "kernelModule::v_deadLineInstanceList");
assert(type);
list = c_new(type);
c_free(type);
if (list) {
v_objectKind(list) = K_DEADLINEINSTANCE;
v_instanceInit(v_instance(list));
list->leaseManager = c_keep(leaseManager);
list->leaseDuration = leaseDuration;
list->deadlineLease = NULL;
list->actionObject = o; /* no keep, since actionObject is onwer of v_deadLineInstanceList */
list->actionId = actionId;
} else {
OS_REPORT(OS_ERROR,
"v_deadLineInstanceListNew",0,
"Failed to allocate v_deadLineInstanceList.");
}
return list;
}
v_dataViewInstance
v_dataViewInstanceNew(
v_dataView dataView,
v_dataViewSample viewSample)
{
v_dataViewInstance instance;
assert(dataView);
assert(viewSample);
assert(C_TYPECHECK(dataView,v_dataView));
assert(C_TYPECHECK(viewSample,v_dataViewSample));
instance = v_dataViewInstance(c_new(dataView->instanceType));
if (instance) {
v_object(instance)->kernel = v_objectKernel(dataView);
v_objectKind(instance) = K_DATAVIEWINSTANCE;
v_instanceInit(v_instance(instance), v_entity(dataView));
viewSample->next = viewSample;
v_dataViewInstanceTemplate(instance)->sample = viewSample;
instance->sampleCount = 1;
v_stateSet(v_instanceState(instance),L_NEW);
v_stateClear(v_readerSample(viewSample)->sampleState,L_READ);
assert(C_TYPECHECK(instance,v_dataViewInstance));
CHECK_INSTANCE(instance);
} else {
OS_REPORT(OS_FATAL, OS_FUNCTION, V_RESULT_INTERNAL_ERROR,
"Failed to allocate v_dataViewInstance");
assert(FALSE);
}
return instance;
}
void
v_deadLineInstanceListRemoveInstance(
v_deadLineInstanceList list,
v_instance instance)
{
assert(C_TYPECHECK(list,v_deadLineInstanceList));
assert((instance->prev != NULL) && (instance->next != NULL));
assert(c_refCount(list) > 0);
assert(c_refCount(instance) > 0);
/* As the instance is removed, there is no need to update the lease.
* Updating the lease might trigger the leasemanager thread to determine
* the next expiry time. The next expiry time can also be determined on
* the next deadline check, which is more efficient as the administration
* might already have changed many times.
*/
v_instanceRemove(instance);
if (v_instanceAlone(v_instance(list))) { /* list has become empty */
if (list->deadlineLease != NULL) {
v_leaseManagerDeregister(list->leaseManager, list->deadlineLease);
c_free(list->deadlineLease);
list->deadlineLease = NULL;
}
}
}
void
v_dataViewInstanceDeinit(
v_dataViewInstance instance)
{
OS_UNUSED_ARG(instance);
assert(C_TYPECHECK(instance,v_dataViewInstance));
v_instanceDeinit(v_instance(instance));
}
c_bool
v_deadLineInstanceListEmpty(
v_deadLineInstanceList list)
{
if (v_instanceAlone(v_instance(list))) {
return TRUE;
} else {
return FALSE;
}
}
void
v_instanceAppend(
v_instance instance,
v_instance next)
{
assert(C_TYPECHECK(instance, v_instance));
assert(C_TYPECHECK(next, v_instance));
assert(v_instanceAlone(next));
v_instance(instance->next)->prev = next;
next->next = instance->next;
instance->next = next;
next->prev = instance;
}
void
v_instanceInsert(
v_instance instance,
v_instance prev)
{
assert(C_TYPECHECK(instance, v_instance));
assert(C_TYPECHECK(prev, v_instance));
assert(v_instanceAlone(prev));
v_instance(instance->prev)->next = prev;
prev->prev = instance->prev;
instance->prev = prev;
prev->next = instance;
}
void
v_deadLineInstanceListSetDuration(
v_deadLineInstanceList list,
v_duration duration)
{
v_kernel k;
v_result result;
assert(C_TYPECHECK(list,v_deadLineInstanceList));
list->leaseDuration = duration;
if (list->deadlineLease != NULL) {
if (c_timeCompare(duration, C_TIME_INFINITE) != C_EQ) {
v_leaseRenew(list->deadlineLease,duration);
} else {
v_leaseManagerDeregister(list->leaseManager, list->deadlineLease);
c_free(list->deadlineLease);
list->deadlineLease = NULL;
}
} else {
if ((v_objectKind(v_instance(list)->prev) != K_DEADLINEINSTANCE) && /* not in list */
(c_timeCompare(duration, C_TIME_INFINITE) != C_EQ)) { /* new instance */
k = v_objectKernel(list->leaseManager);
list->deadlineLease = v_leaseNew(k, duration);
if(list->deadlineLease)
{
result = v_leaseManagerRegister(
list->leaseManager,
list->deadlineLease,
list->actionId,
v_public(list->actionObject),
TRUE /* repeat lease if expired */);
if(result != V_RESULT_OK)
{
c_free(list->deadlineLease);
list->deadlineLease = NULL;
OS_REPORT_1(OS_ERROR, "v_deadLineInstanceList", 0,
"A fatal error was detected when trying to register the deadline lease."
"The result code was %d.", result);
}
}
}
}
}
/* put at end of list */
void
v_deadLineInstanceListInsertInstance(
v_deadLineInstanceList list,
v_instance instance)
{
v_instance head = v_instance(list);
v_kernel k;
v_result result;
assert(C_TYPECHECK(instance,v_instance));
assert(C_TYPECHECK(list,v_deadLineInstanceList));
assert(v_instanceAlone(instance));
assert(c_refCount(list) > 0);
assert(c_refCount(instance) > 0);
/* As the instance is put at the end of the list no need to update the
lease!
*/
v_instanceUpdate(instance); /* Updates instance checkTime */
v_instanceAppend(head,instance);
if (list->deadlineLease == NULL) {
if (c_timeCompare(list->leaseDuration, C_TIME_INFINITE) != C_EQ) {
k = v_objectKernel(list->leaseManager);
list->deadlineLease = v_leaseNew(k, list->leaseDuration);
if(list->deadlineLease)
{
result = v_leaseManagerRegister(
list->leaseManager,
list->deadlineLease,
list->actionId,
v_public(list->actionObject),
TRUE /* repeat lease if expired */);
if(result != V_RESULT_OK)
{
c_free(list->deadlineLease);
list->deadlineLease = NULL;
OS_REPORT_1(OS_ERROR, "v_deadLineInstanceList", 0,
"A fatal error was detected when trying to register the deadline lease."
"The result code was %d.", result);
}
}
}
}
}
void
v_deadLineInstanceListUpdate(
v_deadLineInstanceList list,
v_instance instance)
{
assert(C_TYPECHECK(instance,v_instance));
assert(C_TYPECHECK(list,v_deadLineInstanceList));
assert(c_refCount(list) > 0);
assert(c_refCount(instance) > 0);
/* This will also place the current instance at the end of the list.
Again no need to update the lease, we can determine the next wake-up
as soon as the next deadlinecheck is performed.
*/
if (v_instanceAlone(instance)) {
v_deadLineInstanceListInsertInstance(list,instance);
} else {
v_instanceRemove(instance);
v_instanceUpdate(instance); /* Updates instance checkTime */
v_instanceAppend(v_instance(list), instance);
}
}
