/**************************************************************
* Private functions
**************************************************************/
static c_bool
v__partitionAdminAdd(
v_partitionAdmin da,
const char *partitionName,
v_partition *newPartition)
{
c_bool result = TRUE;
v_partition partition, found;
assert(v_partitionExpressionIsAbsolute(partitionName));
assert(newPartition != NULL);
partition = v_partitionNew(v_objectKernel(da), partitionName, NULL);
found = c_tableInsert(da->partitions, partition);
if (found != partition) {
c_free(partition);
result = FALSE;
*newPartition = NULL;
} else {
/* Do not free partition here because it is returned */
*newPartition = partition;
}
return result;
}
u_partition
u_partitionNew(
u_participant p,
const c_char *name,
v_partitionQos qos)
{
u_partition _this = NULL;
v_kernel ke = NULL;
v_partition kd;
u_result result;
if (name == NULL) {
name = "No partition specified";
}
if (p != NULL) {
result = u_entityWriteClaim(u_entity(u_participantDomain(p)),(v_entity*)(&ke));
if ((result == U_RESULT_OK) && (ke != NULL)) {
kd = v_partitionNew(ke,name,qos);
if (kd != NULL) {
_this = u_entityAlloc(p,u_partition,kd,FALSE);
if (_this != NULL) {
result = u_partitionInit(_this);
if (result != U_RESULT_OK) {
OS_REPORT_1(OS_ERROR, "u_partitionNew", 0,
"Initialisation failed. "
"For Partition: <%s>.", name);
u_partitionFree(_this);
}
} else {
OS_REPORT_1(OS_ERROR, "u_partitionNew", 0,
"Create proxy failed. "
"For Partition: <%s>.", name);
}
c_free(kd);
} else {
OS_REPORT_1(OS_ERROR, "u_partitionNew", 0,
"Create kernel entity failed. "
"For Partition: <%s>", name);
}
result = u_entityRelease(u_entity(u_participantDomain(p)));
} else {
OS_REPORT_1(OS_WARNING, "u_partitionNew", 0,
"Claim Participant failed. "
"For Partition: <%s>", name);
}
} else {
OS_REPORT_1(OS_ERROR,"u_partitionNew",0,
"No Participant specified. "
"For Partition: <%s>", name);
}
return _this;
}
c_bool
v_partitionAdminSet(
v_partitionAdmin da,
v_partitionPolicy partitionExpr,
c_iter *addedPartitions,
c_iter *removedPartitions)
{
c_iter dexpressions; /* iterator of partition expressions */
c_char *dexpr; /* partition expression */
v_partitionInterest di;
struct resolvePartitionsArg resolveArg;
struct updatePartitionsArg updateArg;
assert(C_TYPECHECK(da, v_partitionAdmin));
assert(removedPartitions != NULL);
assert(addedPartitions != NULL);
*removedPartitions = NULL;
*addedPartitions = NULL;
resolveArg.kernel = v_objectKernel(da);
c_mutexLock(&da->mutex);
/*
* The absolute partition names will be added at the end of
* the algorithm.
* The partition expressions in the parameter of partitionExpr,
* replace the existing in da->partitionInterests.
*/
c_free(da->partitionInterests);
da->partitionInterests = c_tableNew(v_kernelType(resolveArg.kernel, K_DOMAININTEREST),
"expression");
assert(c_count(da->partitionInterests) == 0);
dexpressions = v_partitionPolicySplit(partitionExpr);
if (dexpressions == NULL) {
/* switch to default */
*addedPartitions = c_iterInsert(*addedPartitions, v_partitionNew(resolveArg.kernel, "", NULL));
} else {
dexpr = (c_char *)c_iterTakeFirst(dexpressions);
while (dexpr != NULL) {
if (v_partitionExpressionIsAbsolute(dexpr)) {
*addedPartitions = c_iterInsert(*addedPartitions,
v_partitionNew(resolveArg.kernel, dexpr, NULL));
/* ref transferred to addedPartitions */
} else {
di = v_partitionInterestNew(resolveArg.kernel, (const c_char *)dexpr);
c_tableInsert(da->partitionInterests, di);
c_free(di);
}
os_free(dexpr);
dexpr = (c_char *)c_iterTakeFirst(dexpressions);
}
c_iterFree(dexpressions);
}
/*
* The given expressions are now divided across
* 'addedpartitions' and 'da->partitionInterests'.
* Now first add partitions to 'addedpartitions' that fit the
* expressions in 'da->partitionInterests'.
*/
resolveArg.partitions = addedPartitions;
c_tableWalk(da->partitionInterests, resolvePartitions, (c_voidp)&resolveArg);
/*
* Now 'addedpartitions' contains all partitions to be added
* by the publisher/subscriber.
* 'da->partitions' contains the old set of partitions.
* We must check whether those partitions must remain in
* the set or must be removed.
* For every partition in 'da->partitions' do
* if partition in 'addedpartitions' then remove from 'addedpartitions'
* else add to 'removedpartitions'
* For every partition in 'removedpartitions' remove from 'da->partitions'.
*/
updateArg.addPartitions = addedPartitions;
updateArg.removePartitions = removedPartitions;
c_tableWalk(da->partitions, updatePartitions, (c_voidp)&updateArg);
c_iterWalk(*removedPartitions, removePartition, (c_voidp)da->partitions);
/*
* The da->partitions now contains partitions that still comply to new
* partitionPolicy. So all partitions in added partitions, must be added
* to da->partitions, so it reflects all connected partitions.
*/
c_iterWalk(*addedPartitions, addPartition, (c_voidp)da->partitions);
c_mutexUnlock(&da->mutex);
return TRUE;
}
u_group
u_groupNew(
u_participant participant,
const c_char *partitionName,
const c_char *topicName,
v_duration timeout)
{
u_result r;
v_participant kparticipant;
v_kernel kernel;
v_topic ktopic;
v_partition kpartition;
v_group kgroup;
c_iter topics;
os_time delay;
u_group group = NULL;
if ((partitionName != NULL) && (topicName != NULL)) {
if (participant != NULL) {
r = u_entityWriteClaim(u_entity(participant), (v_entity*)(&kparticipant));
if (r == U_RESULT_OK){
assert(kparticipant);
kernel = v_objectKernel(kparticipant);
topics = v_resolveTopics(kernel,topicName);
if (c_iterLength(topics) == 0) {
c_iterFree(topics);
delay.tv_sec = timeout.seconds;
delay.tv_nsec = timeout.nanoseconds;
os_nanoSleep(delay);
topics = v_resolveTopics(v_objectKernel(kparticipant),
topicName);
}
if (c_iterLength(topics) > 1) {
OS_REPORT_1(OS_WARNING, "u_groupNew", 0,
"Internal error: "
"Multiple topics found with name = <%s>.",
topicName);
}
ktopic = c_iterTakeFirst(topics);
/* If ktopic == NULL, the topic definition is unknown.
* This is not critical since it may become known in the near future.
* In that case the caller is responsible for retrying to create this group,
* and log something if, eventually, the group still cannot be created.
*/
if (ktopic != NULL) {
kpartition = v_partitionNew(kernel, partitionName, NULL);
if (kpartition != NULL) {
kgroup = v_groupSetCreate(kernel->groupSet, kpartition, ktopic);
if (kgroup != NULL) {
group = u_groupCreate(kgroup, participant);
if (group == NULL) {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Create proxy failed. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
c_free(kgroup);
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Create kernel entity failed. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
c_free(kpartition);
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew", 0,
"Failed to create partition. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
c_free(ktopic);
}
ktopic = c_iterTakeFirst(topics);
while (ktopic != NULL) {
c_free(ktopic);
ktopic = c_iterTakeFirst(topics);
}
c_iterFree(topics);
r = u_entityRelease(u_entity(participant));
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Claim kernel participant failed."
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"No participant specified. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Illegal parameter."
"partitionName = <0x%x>, topicName = <0x%x>.",
partitionName, topicName);
}
return group;
}
u_group
u_groupNew(
u_participant participant,
const c_char *partitionName,
const c_char *topicName,
v_duration timeout)
{
u_result r;
v_participant kparticipant;
v_kernel kernel;
v_topic ktopic;
v_partition kpartition;
v_group kgroup;
c_iter topics;
os_time delay;
u_group group = NULL;
if ((partitionName != NULL) && (topicName != NULL)) {
if (participant != NULL) {
r = u_entityWriteClaim(u_entity(participant), (v_entity*)(&kparticipant));
if (r == U_RESULT_OK){
assert(kparticipant);
kernel = v_objectKernel(kparticipant);
topics = v_resolveTopics(kernel,topicName);
if (c_iterLength(topics) == 0) {
c_iterFree(topics);
delay.tv_sec = timeout.seconds;
delay.tv_nsec = timeout.nanoseconds;
os_nanoSleep(delay);
topics = v_resolveTopics(v_objectKernel(kparticipant),
topicName);
}
if (c_iterLength(topics) > 1) {
OS_REPORT_1(OS_WARNING, "u_groupNew", 0,
"Internal error: "
"Multiple topics found with name = <%s>.",
topicName);
}
ktopic = c_iterTakeFirst(topics);
if (ktopic != NULL) {
kpartition = v_partitionNew(kernel, partitionName, NULL);
if (kpartition != NULL) {
kgroup = v_groupSetCreate(kernel->groupSet, kpartition, ktopic);
if (kgroup != NULL) {
group = u_groupCreate(kgroup, participant);
if (group == NULL) {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Create proxy failed. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
c_free(kgroup);
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Create kernel entity failed. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
c_free(kpartition);
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew", 0,
"Failed to create partition. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
c_free(ktopic);
}else {
OS_REPORT_2(OS_ERROR,"u_groupNew", 0,
"Topic not (yet) known. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
ktopic = c_iterTakeFirst(topics);
while (ktopic != NULL) {
c_free(ktopic);
ktopic = c_iterTakeFirst(topics);
}
c_iterFree(topics);
r = u_entityRelease(u_entity(participant));
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Claim kernel participant failed."
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"No participant specified. "
"For Partition <%s> and Topic <%s>.",
partitionName, topicName);
}
} else {
OS_REPORT_2(OS_ERROR,"u_groupNew",0,
"Illegal parameter."
"partitionName = <0x%x>, topicName = <0x%x>.",
partitionName, topicName);
}
return group;
}
