jni_topic
jni_lookupTopic(
jni_participant p,
const char* name)
{
c_iter topics;
jni_topic topic, temp;
int found;
topic = NULL;
if((name != NULL) && (p != NULL)){
topics = c_iterCopy(p->topics);
found = 0;
temp = jni_topic(c_iterTakeFirst(topics));
while( (temp != NULL) && (!found)){
if(strcmp(jni_topicDescription(temp)->name, name) == 0){
topic = temp;
found = 1;
}
temp = jni_topic(c_iterTakeFirst(topics));
}
c_iterFree(topics);
}
return topic;
}
jni_topic
jni_topicNew(
jni_participant p,
const char* name,
const char* typeName,
const char* keyList,
v_topicQos qos)
{
jni_topic topic;
assert(name);
assert(typeName);
if((p == NULL) || (p->uparticipant == NULL)){
goto err_badParam;
}
if((topic = os_malloc(sizeof *topic)) == NULL){
goto err_mallocTopic;
}
jni_topicDescription(topic)->participant = p;
if((topic->utopic = u_topicNew(p->uparticipant, name, typeName, keyList, qos)) == NULL){
goto err_u_topicNew;
}
if((jni_topicDescription(topic)->name = os_strdup(name)) == NULL){
goto err_strdupName;
}
if((jni_topicDescription(topic)->typeName = os_strdup(typeName)) == NULL){
goto err_strdupTypeName;
}
if(keyList){
if((jni_topicDescription(topic)->keyList = os_strdup(keyList)) == NULL){
goto err_strdupKeyList;
}
} else {
jni_topicDescription(topic)->keyList = NULL;
}
return topic;
/* Error handling */
err_strdupKeyList:
os_free(jni_topicDescription(topic)->typeName);
err_strdupTypeName:
os_free(jni_topicDescription(topic)->name);
err_strdupName:
/* Ignore return value since we are already in an error condition. */
(void) u_topicFree(topic->utopic);
err_u_topicNew:
os_free(topic);
err_mallocTopic:
err_badParam:
return NULL;
}
jni_result
jni_topicFree(
jni_topic topic)
{
jni_result r;
if(topic != NULL){
r = jni_convertResult(u_topicFree(topic->utopic));
os_free(jni_topicDescription(topic)->name);
os_free(jni_topicDescription(topic)->typeName);
if(jni_topicDescription(topic)->keyList != NULL){
os_free(jni_topicDescription(topic)->keyList);
}
os_free(topic);
}
else{
r = JNI_RESULT_BAD_PARAMETER;
}
return r;
}
jni_result
jni_deleteTopic(
jni_participant p,
jni_topic top)
{
jni_result r;
c_bool found;
if((top == NULL) || (p == NULL)){
r = JNI_RESULT_BAD_PARAMETER;
}
else if(p->topics == NULL){
r = JNI_RESULT_PRECONDITION_NOT_MET;
}
else if( (jni_topicDescription(top)->participant) != p ){
r = JNI_RESULT_PRECONDITION_NOT_MET;
}
else if(!(jni_participantMayTopicBeDeleted(p, jni_topicDescription(top)->name))){
r = JNI_RESULT_PRECONDITION_NOT_MET;
}
else{
found = c_iterContains(p->topics, top);
if(!found){
r = JNI_RESULT_PRECONDITION_NOT_MET;
}
else{
r = jni_topicFree(top);
if(r == JNI_RESULT_OK){
c_iterTake(p->topics, top);
}
}
}
return r;
}
