static void*
d_waitsetEventHandler(
void* userData)
{
d_subscriber subscriber;
d_durability durability;
d_admin admin;
c_iter events;
d_waitsetEntity we;
c_time time;
d_waitsetHelper helper;
u_waitset userWaitset;
u_waitsetEvent event;
u_result ur;
helper = d_waitsetHelper(userData);
we = helper->entity;
subscriber = d_waitsetGetSubscriber(helper->waitset);
admin = d_subscriberGetAdmin(subscriber);
durability = d_adminGetDurability(admin);
time.seconds = 1;
time.nanoseconds = 0;
userWaitset = helper->userWaitset;
ur = U_RESULT_OK;
while((helper->terminate == FALSE) && (ur == U_RESULT_OK)) {
events = NULL;
if(helper->waitset->timedWait == TRUE){
ur = u_waitsetTimedWaitEvents(userWaitset, time,&events);
} else {
ur = u_waitsetWaitEvents(userWaitset,&events);
}
if(events && (ur == U_RESULT_OK)){/* events may be null if waitset was deleted*/
event = u_waitsetEvent(c_iterTakeFirst(events));
while(event){
/* Only dispatch event when durability is not terminating */
if (d_durabilityGetState(durability) != D_STATE_TERMINATING){
we->action(we->dispatcher, event, we->usrData);
}
u_waitsetEventFree(event);
event = u_waitsetEvent(c_iterTakeFirst(events));
}
c_iterFree(events);
}
}
if(ur != U_RESULT_OK){
d_printTimedEvent(durability, D_LEVEL_SEVERE,
we->name,
"Waitset no longer available (result: %d). Fatal error, terminating now...\n",
ur);
OS_REPORT_1(OS_ERROR, D_CONTEXT_DURABILITY, 0,
"Waitset no longer available (result: %d). Fatal error, terminating now...\n",
ur);
d_durabilityTerminate(durability);
}
return NULL;
}
c_bool
d_publisherDeleteDataWrite(
d_publisher publisher,
d_deleteData message,
d_networkAddress addressee)
{
c_bool result;
u_result ur;
int resendCount;
c_bool terminate;
d_durability durability;
OS_UNUSED_ARG(addressee);
result = FALSE;
assert(d_objectIsValid(d_object(publisher), D_PUBLISHER) == TRUE);
if(publisher){
if(publisher->enabled == TRUE){
terminate = FALSE;
resendCount = 0;
durability = d_adminGetDurability(publisher->admin);
d_publisherInitMessage(publisher, d_message(message));
d_message(message)->sequenceNumber = publisher->deleteDataNumber++;
while((!result) && (!terminate)){
ur = u_writerWrite(publisher->deleteDataWriter,
message, v_timeGet(), U_INSTANCEHANDLE_NIL);
if(ur == U_RESULT_OK){
result = TRUE;
} else if(ur == U_RESULT_TIMEOUT) {
terminate = d_durabilityMustTerminate(durability);
resendCount++;
if(terminate){
d_printTimedEvent(durability, D_LEVEL_SEVERE, D_THREAD_UNSPECIFIED,
"Failed to resend d_deleteData message, because durability is terminating.\n");
OS_REPORT(OS_WARNING, D_CONTEXT_DURABILITY, 0,
"Failed to send d_deleteData message, because durability is terminating.");
} else if((resendCount == 1) || ((resendCount % 5) == 0)){
d_printTimedEvent(durability, D_LEVEL_WARNING, D_THREAD_UNSPECIFIED,
"Already tried to resend d_deleteData message '%d' times.\n", resendCount);
if(resendCount != 1){
OS_REPORT_1(OS_WARNING, D_CONTEXT_DURABILITY, 0,
"Already tried to resend d_deleteData message '%d' times.",
resendCount);
}
}
} else {
d_printTimedEvent(durability, D_LEVEL_SEVERE, D_THREAD_UNSPECIFIED,
"Write of d_deleteData message FAILED with result %d.\n", ur);
OS_REPORT_1(OS_ERROR, D_CONTEXT_DURABILITY, 0,
"Write of d_deleteData message FAILED with result %d.", ur);
d_durabilityTerminate(durability, TRUE);
terminate = d_durabilityMustTerminate(durability);
}
}
}
}
return result;
}
c_bool
d_publisherStatusWrite(
d_publisher publisher,
d_status message,
d_networkAddress addressee)
{
c_bool result;
u_result ur;
int resendCount;
c_bool terminate;
d_durability durability;
OS_UNUSED_ARG(addressee);
result = FALSE;
assert(d_objectIsValid(d_object(publisher), D_PUBLISHER) == TRUE);
if(publisher){
if(publisher->enabled == TRUE){
terminate = FALSE;
resendCount = 0;
durability = d_adminGetDurability(publisher->admin);
d_publisherInitMessage(publisher, d_message(message));
d_message(message)->sequenceNumber = publisher->statusNumber++;
while((!result) && (!terminate)){
ur = u_writerWrite(publisher->statusWriter,
message,
v_timeGet(),
U_INSTANCEHANDLE_NIL);
if(ur == U_RESULT_OK){
result = TRUE;
} else if(ur == U_RESULT_TIMEOUT) {
terminate = d_durabilityMustTerminate(durability);
if(!terminate && d_message(message)->senderState == D_STATE_TERMINATING){
/* ES 21 - okt - 2011:
* if durability is not yet terminating, but the message being written
* does indicate that termination of durability is imminent, then we have
* to prevent durability from constantly retrying in the case of a TIMEOUT
* of the datawriter. The standard timeout provided to the write will ensure
* the write is tried during the period of the timeout. But once that timeout is
* exceeded then it is fruitless to continue try to write the terminating message
* Without this specific code, durability will hang when terminating is caused
* by splice daemon terminating.
*/
terminate = TRUE;
}
resendCount++;
if(terminate){
d_printTimedEvent(durability, D_LEVEL_SEVERE, D_THREAD_UNSPECIFIED,
"Failed to resend d_status message, because durability is terminating.\n");
OS_REPORT(OS_WARNING, D_CONTEXT_DURABILITY, 0,
"Failed to send d_status message, because durability is terminating.");
} else if((resendCount == 1) || ((resendCount % 5) == 0)){
d_printTimedEvent(durability, D_LEVEL_WARNING, D_THREAD_UNSPECIFIED,
"Already tried to resend d_status message '%d' times.\n", resendCount);
if(resendCount != 1){
OS_REPORT_1(OS_WARNING, D_CONTEXT_DURABILITY, 0,
"Already tried to resend d_status message '%d' times.",
resendCount);
}
}
} else {
d_printTimedEvent(durability, D_LEVEL_SEVERE, D_THREAD_UNSPECIFIED,
"Write of d_status message FAILED with result %d.\n", ur);
OS_REPORT_1(OS_ERROR, D_CONTEXT_DURABILITY, 0,
"Write of d_status message FAILED with result %d.", ur);
d_durabilityTerminate(durability, TRUE);
terminate = d_durabilityMustTerminate(durability);
}
}
}
}
return result;
}
