int OSPL_MAIN (int argc, char *argv[])
{
DDS_Subscriber QueryConditionDataSubscriber;
DDS_DataReader QueryConditionDataDataReader;
StockMarket_Stock* QueryConditionDataSample;
DDS_sequence_StockMarket_Stock* msgList = DDS_sequence_StockMarket_Stock__alloc();
DDS_SampleInfoSeq* infoSeq = DDS_SampleInfoSeq__alloc();
c_bool isClosed = FALSE;
unsigned long j;
DDS_char* QueryConditionDataToSubscribe;
DDS_char *query_string = "ticker=%0";
DDS_QueryCondition queryCondition;
os_time delay_200ms = { 0, 200000000 };
int count = 0;
// usage : QueryConditionSubscriber <topic's content filtering string>
if( argc < 2 )
{
usage();
}
printf("\n\n Starting QueryConditionSubscriber...");
printf("\n\n Parameter is \"%s\"", argv[1]);
QueryConditionDataToSubscribe = argv[1];
createParticipant("QueryCondition example");
// Register Stock Topic's type in the DDS Domain.
g_StockTypeSupport = (DDS_TypeSupport) StockMarket_StockTypeSupport__alloc();
checkHandle(g_StockTypeSupport, "StockMarket_StockTypeSupport__alloc");
registerStockType(g_StockTypeSupport);
// Create Stock Topic in the DDS Domain.
g_StockTypeName = StockMarket_StockTypeSupport_get_type_name(g_StockTypeSupport);
g_StockTopic = createTopic("StockTrackerExclusive", g_StockTypeName);
DDS_free(g_StockTypeName);
DDS_free(g_StockTypeSupport);
// Create the Subscriber's in the DDS Domain.
QueryConditionDataSubscriber = createSubscriber();
// Request a Reader from the the Subscriber.
QueryConditionDataDataReader = createDataReader(QueryConditionDataSubscriber, g_StockTopic);
// Create QueryCondition
printf( "\n=== [QueryConditionSubscriber] Query : ticker = %s\n", QueryConditionDataToSubscribe );
queryCondition = createQueryCondition(QueryConditionDataDataReader, query_string, (DDS_char*) QueryConditionDataToSubscribe);
printf( "\n=== [QueryConditionSubscriber] Ready..." );
do
{
g_status = StockMarket_StockDataReader_take_w_condition(QueryConditionDataDataReader,
msgList,
infoSeq,
DDS_LENGTH_UNLIMITED,
queryCondition);
checkStatus(g_status, "StockMarket_StockDataReaderView_take");
if( msgList->_length > 0 )
{
j = 0;
do
{
QueryConditionDataSample = &msgList->_buffer[j];
// When is this supposed to happen?
// Needs comment...
if( infoSeq->_buffer[j].valid_data )
{
printf("\n\n %s: %f", QueryConditionDataSample->ticker, QueryConditionDataSample->price);
if( QueryConditionDataSample->price == (DDS_float) -1.0f )
{
printf("\n ===[QueryConditionSubscriber] QueryConditionDataSample->price == -1.0f ");
isClosed = TRUE;
}
}
}
while( ++j < msgList->_length );
g_status = StockMarket_StockDataReader_return_loan(QueryConditionDataDataReader, msgList, infoSeq);
checkStatus(g_status, "StockMarket_StockDataReaderView_return_loan");
}
os_nanoSleep(delay_200ms);
++count;
}
while( isClosed == FALSE && count < 1500 );
printf("\n\n=== [QueryConditionSubscriber] Market Closed");
// Cleanup DDS from the created Entities.
deleteQueryCondition(QueryConditionDataDataReader, queryCondition);
deleteDataReader(QueryConditionDataSubscriber, QueryConditionDataDataReader);
deleteSubscriber(QueryConditionDataSubscriber);
deleteTopic(g_StockTopic);
deleteParticipant();
// Cleanup C allocations,
// recursively freeing the allocated structures and sequences using the OpenSplice API.
DDS_free(msgList);
DDS_free(infoSeq);
// Print out an empty line, just to let behind a clean new line for the shell..
printf("\n\r");
return 0;
}
int main(int argc, char *argv[])
{
char* publisher_name;
int i, sampleIndex, nb_iteration;
c_bool isStoppingSubscriber;
float price;
char* geTicker = "GE";
int geTickerLength = strlen(geTicker);
char* msftTicker = "MSFT";
int msftTickerLength = strlen(msftTicker);
os_time os_delay100 = { 0, 100000000 };
os_time os_delay2000 = { 2, 0 };
DDS_Publisher QueryConditionDataPublisher;
DDS_DataWriter QueryConditionDataDataWriter;
QueryConditionData_Stock* geStockSample;
QueryConditionData_Stock* msftStockSample;
DDS_InstanceHandle_t geInstanceHandle;
DDS_InstanceHandle_t msftInstancetHandle;
createParticipant("QueryCondition example");
// Register Stock Topic's type in the DDS Domain.
g_StockTypeSupport = (DDS_TypeSupport) QueryConditionData_StockTypeSupport__alloc();
checkHandle(g_StockTypeSupport, "QueryConditionData_StockTypeSupport__alloc");
registerStockType(g_StockTypeSupport);
// Create Stock Topic in the DDS Domain.
g_StockTypeName = (char*) QueryConditionData_StockTypeSupport_get_type_name(g_StockTypeSupport);
g_StockTopic = createTopic("StockTrackerExclusive", g_StockTypeName);
DDS_free(g_StockTypeName);
DDS_free(g_StockTypeSupport);
// Create the Publisher's in the DDS Domain.
QueryConditionDataPublisher = createPublisher();
// Request a Writer from the the Publisher.
QueryConditionDataDataWriter = createDataWriter(QueryConditionDataPublisher, g_StockTopic, FALSE);
// Publish a Stock Sample reflecting the state of the Msg DataWriter.
geStockSample = QueryConditionData_Stock__alloc();
msftStockSample = QueryConditionData_Stock__alloc();
msftStockSample->ticker = DDS_string_alloc(msftTickerLength);
snprintf(msftStockSample->ticker, msftTickerLength + 1, "%s", msftTicker);
msftStockSample->price = 12.00f;
geStockSample->ticker = DDS_string_alloc(geTickerLength);
snprintf(geStockSample->ticker, geTickerLength + 1, "%s", geTicker);
geStockSample->price = 25.00f;
geInstanceHandle = QueryConditionData_StockDataWriter_register_instance(QueryConditionDataDataWriter, geStockSample);
msftInstancetHandle = QueryConditionData_StockDataWriter_register_instance(QueryConditionDataDataWriter, msftStockSample);
nb_iteration = 20;
// The subscriber should display the prices sent by the publisher with the highest ownership strength
for( sampleIndex = 0; sampleIndex < nb_iteration ; ++sampleIndex )
{
printf("GE : %.1f MSFT : %.1f\n", geStockSample->price, msftStockSample->price);
writeStockSample(QueryConditionDataDataWriter, geInstanceHandle, geStockSample);
writeStockSample(QueryConditionDataDataWriter, msftInstancetHandle, msftStockSample);
geStockSample->price += 0.5;
msftStockSample->price += 1.5;
os_nanoSleep(os_delay100);
}
// This special price gives the end signal to the Subscriber:
// signal to terminate
geStockSample->price = -1.0f;
msftStockSample->price = -1.0f;
writeStockSample(QueryConditionDataDataWriter, geInstanceHandle, geStockSample);
writeStockSample(QueryConditionDataDataWriter, msftInstancetHandle, msftStockSample);
// This to make sure the Subscriber will get all the Samples.
os_nanoSleep(os_delay2000);
printf("Market Closed");
QueryConditionData_StockDataWriter_unregister_instance (QueryConditionDataDataWriter, geStockSample, geInstanceHandle);
QueryConditionData_StockDataWriter_unregister_instance (QueryConditionDataDataWriter, msftStockSample, msftInstancetHandle);
// Cleanup DDS from the created Entities.
deleteDataWriter(QueryConditionDataPublisher, QueryConditionDataDataWriter);
deletePublisher(QueryConditionDataPublisher);
deleteTopic(g_StockTopic);
deleteParticipant();
// Cleanup C allocations,
// recursively freeing the allocated structures and sequences using the OpenSplice API.
DDS_free(geStockSample);
DDS_free(msftStockSample);
// Print out an empty line, just to let behind a clean new line for the shell..
printf("\n\r");
return 0;
}
int OSPL_MAIN (int argc, char *argv[])
{
char* publisher_name;
int i, sampleIndex, ownership_strength, nb_iteration;
c_bool isStoppingSubscriber;
float price;
os_time os_delay200 = { 0, 200000000 };
os_time os_delay2000 = { 2, 0 };
DDS_Publisher OwnershipDataPublisher;
DDS_DataWriter OwnershipDataDataWriter;
OwnershipData_Stock* OwnershipDataSample;
DDS_InstanceHandle_t userHandle;
const char ticker [] = "MSFT";
DDS_unsigned_long stringLength = sizeof(ticker) - 1;
// usage : Publisher.exe <publisher_name> <ownership_strength> <nb_iterations>
if( argc < 5 )
{
usage();
}
printf("\n\n Starting OwnershipDataPublisher...");
printf("\n\n Parameters are:");
for( i = 1; i < argc ; ++i )
{
printf("\n %d: %s", i, argv[i]);
}
publisher_name = argv[1];
ownership_strength = atoi(argv[2]);
nb_iteration = atoi(argv[3]);
isStoppingSubscriber = argv[4][0] == '1' ? TRUE : FALSE;
createParticipant("Ownership example");
// Register Stock Topic's type in the DDS Domain.
g_StockTypeSupport = (DDS_TypeSupport) OwnershipData_StockTypeSupport__alloc();
checkHandle(g_StockTypeSupport, "OwnershipData_StockTypeSupport__alloc");
registerStockType(g_StockTypeSupport);
// Create Stock Topic in the DDS Domain.
g_StockTypeName = OwnershipData_StockTypeSupport_get_type_name(g_StockTypeSupport);
g_StockTopic = createTopic("StockTrackerExclusive", g_StockTypeName);
DDS_free(g_StockTypeName);
DDS_free(g_StockTypeSupport);
// Create the Publisher's in the DDS Domain.
OwnershipDataPublisher = createPublisher();
// Request a Writer from the the Publisher.
OwnershipDataDataWriter = createDataWriter(OwnershipDataPublisher, g_StockTopic, FALSE, ownership_strength);
// Publish a Stock Sample reflecting the state of the Msg DataWriter.
OwnershipDataSample = OwnershipData_Stock__alloc();
OwnershipDataSample->ticker = DDS_string_alloc(stringLength);
snprintf(OwnershipDataSample->ticker, stringLength + 1, "%s", ticker);
OwnershipDataSample->price = 0.0;
OwnershipDataSample->publisher = DDS_string_dup(publisher_name);
OwnershipDataSample->strength = ownership_strength;
userHandle = OwnershipData_StockDataWriter_register_instance(OwnershipDataDataWriter, OwnershipDataSample);
//Publisher publishes the prices in dollars
printf("\n=== [Publisher] Publisher %d with strength : ", ownership_strength);
printf("\n / sending %d prices...", nb_iteration);
// The subscriber should display the prices sent by the publisher with the highest ownership strength
price = 10.0f;
for( sampleIndex = 0; sampleIndex < nb_iteration ; ++sampleIndex )
{
OwnershipDataSample->price = price;
writeStockSample(OwnershipDataDataWriter, userHandle, OwnershipDataSample);
os_nanoSleep(os_delay200);
price = price + 0.5f;
}
if( isStoppingSubscriber == TRUE )
{
// This special price gives the end signal to the Subscriber:
OwnershipDataSample->price = (DDS_float) -1.0f;
writeStockSample(OwnershipDataDataWriter, userHandle, OwnershipDataSample);
}
// This to make sure the Subscriber will get all the Samples.
os_nanoSleep(os_delay2000);
OwnershipData_StockDataWriter_unregister_instance (OwnershipDataDataWriter, OwnershipDataSample, userHandle);
// Cleanup DDS from the created Entities.
deleteDataWriter(OwnershipDataPublisher, OwnershipDataDataWriter);
deletePublisher(OwnershipDataPublisher);
deleteTopic(g_StockTopic);
deleteParticipant();
// Cleanup C allocations,
// recursively freeing the allocated structures and sequences using the OpenSplice API.
DDS_free(OwnershipDataSample);
// Print out an empty line, just to let behind a clean new line for the shell..
printf("\n\r");
return 0;
}
int main(int argc, char *argv[])
{
char* partition_name = "ContentFilteredTopic example";
DDS_Subscriber contentFilteredTopicDataSubscriber;
DDS_DataReader contentFilteredTopicDataDataReader;
ContentFilteredTopicData_Stock* contentFilteredTopicDataSample;
DDS_InstanceHandle_t userHandle;
DDS_sequence_ContentFilteredTopicData_Stock* msgList = DDS_sequence_ContentFilteredTopicData_Stock__alloc();
DDS_SampleInfoSeq* infoSeq = DDS_SampleInfoSeq__alloc();
c_bool isClosed = FALSE;
unsigned long j, userInput, timeOut;
const char *filterValueToSubscribe;
DDS_char* contentFilteredStockTopicName = "MyStockTopic";
DDS_ContentFilteredTopic contentFilteredTopic;
int filter_expressionLength;
const char* filter_expressionPrefix = "ticker = '";
const char* filter_expressionSuffix = "'";
DDS_char *filter_expression;
const DDS_StringSeq* filter_parameters = DDS_StringSeq__alloc();
os_time delay_200ms = { 0, 200000000 };
int count = 0;
// usage : ContentFilteredTopicDataSubscriber <topic's content filtering string>
if( argc < 2 )
{
usage();
}
printf("=== ContentFilteredTopicDataSubscriber");
// Removed to comply with expected results
//printf("\n\n Parameter is \"%s\"", argv[1]);
filterValueToSubscribe = argv[1];
createParticipant( partition_name );
// Register Stock Topic's type in the DDS Domain.
g_StockTypeSupport = (DDS_TypeSupport) ContentFilteredTopicData_StockTypeSupport__alloc();
checkHandle(g_StockTypeSupport, "ContentFilteredTopicData_StockTypeSupport__alloc");
registerStockType(g_StockTypeSupport);
// Create Stock Topic in the DDS Domain.
g_StockTypeName = (char*) ContentFilteredTopicData_StockTypeSupport_get_type_name(g_StockTypeSupport);
g_StockTopic = createTopic("StockTrackerExclusive", g_StockTypeName);
DDS_free(g_StockTypeName);
DDS_free(g_StockTypeSupport);
// Create the Subscriber's in the DDS Domain.
contentFilteredTopicDataSubscriber = createSubscriber();
// create subscription filter
filter_expressionLength = strlen(filter_expressionPrefix);
filter_expressionLength += strlen(filterValueToSubscribe);
filter_expressionLength += strlen(filter_expressionSuffix);
filter_expression = DDS_string_alloc(filter_expressionLength);
snprintf(filter_expression, filter_expressionLength + 1, "%s%s%s", filter_expressionPrefix, filterValueToSubscribe, filter_expressionSuffix);
// create ContentFilteredTopic to retrieve only the samples with the given Stock.
contentFilteredTopic = createContentFilteredTopic(contentFilteredStockTopicName, g_StockTopic, filter_expression, filter_parameters);
// create Filtered DataReader
printf( "\n=== [ContentFilteredTopicDataSubscriber] Subscription filter : %s", filter_expression );
// Request a Reader from the the Subscriber.
contentFilteredTopicDataDataReader = createContentFilteredDataReader(contentFilteredTopicDataSubscriber, contentFilteredTopic);
printf( "\n=== [ContentFilteredTopicDataSubscriber] Ready ..." );
do
{
g_status = ContentFilteredTopicData_StockDataReader_take(contentFilteredTopicDataDataReader, msgList, infoSeq, DDS_LENGTH_UNLIMITED, DDS_ANY_SAMPLE_STATE, DDS_ANY_VIEW_STATE, DDS_ANY_INSTANCE_STATE);
checkStatus(g_status, "ContentFilteredTopicData_StockDataReaderView_take");
if( msgList->_length > 0 )
{
j = 0;
do
{
contentFilteredTopicDataSample = &msgList->_buffer[j];
if( infoSeq->_buffer[j].valid_data )
{
if( contentFilteredTopicDataSample->price != (DDS_float) -1.0f )
{
int floatWidth = ( ((DDS_float) contentFilteredTopicDataSample->price) - ((long) contentFilteredTopicDataSample->price) ) ? 1 : 0;
printf("\n=== [ContentFilteredTopicDataSubscriber] receives stockQuote : (%s, %.*f)", contentFilteredTopicDataSample->ticker, floatWidth, contentFilteredTopicDataSample->price);
}
else
{
isClosed = TRUE;
}
}
}
while( ++j < msgList->_length );
g_status = ContentFilteredTopicData_StockDataReader_return_loan(contentFilteredTopicDataDataReader, msgList, infoSeq);
checkStatus(g_status, "ContentFilteredTopicData_StockDataReader_return_loan");
if(isClosed == FALSE)
{
os_nanoSleep(delay_200ms);
++count;
}
}
}
while( isClosed == FALSE && count < 1500); // We dont want the example to run indefinitely
printf("\n=== [ContentFilteredTopicDataSubscriber] Market Closed\n");
// Cleanup DDS from the created Entities.
deleteDataReader(contentFilteredTopicDataSubscriber, contentFilteredTopicDataDataReader);
deleteSubscriber(contentFilteredTopicDataSubscriber);
deleteContentFilteredTopic(contentFilteredTopic);
deleteTopic(g_StockTopic);
deleteParticipant();
// Cleanup C allocations,
// recursively freeing the allocated structures and sequences using the OpenSplice API.
DDS__free(msgList);
DDS__free(infoSeq);
// Print out an empty line, just to let behind a clean new line for the shell..
// Removed to comply with expected results
//printf("\n\r");
return 0;
}
int main(int argc, char *argv[])
{
DDS_Subscriber OwnershipDataSubscriber;
DDS_DataReader OwnershipDataDataReader;
OwnershipData_Stock* OwnershipDataSample;
DDS_InstanceHandle_t userHandle;
DDS_sequence_OwnershipData_Stock* msgList = DDS_sequence_OwnershipData_Stock__alloc();
DDS_SampleInfoSeq* infoSeq = DDS_SampleInfoSeq__alloc();
c_bool isClosed;
int count = 0;
unsigned long j, userInput, timeOut;
os_time os_delay200 = { 0, 200000000 };
printf("\n\n Starting LifecycleSubscriber...");
createParticipant("Ownership example");
// Register Stock Topic's type in the DDS Domain.
g_StockTypeSupport = (DDS_TypeSupport) OwnershipData_StockTypeSupport__alloc();
checkHandle(g_StockTypeSupport, "OwnershipData_StockTypeSupport__alloc");
registerStockType(g_StockTypeSupport);
// Create Stock Topic in the DDS Domain.
g_StockTypeName = (char*) OwnershipData_StockTypeSupport_get_type_name(g_StockTypeSupport);
g_StockTopic = createTopic("StockTrackerExclusive", g_StockTypeName);
DDS_free(g_StockTypeName);
DDS_free(g_StockTypeSupport);
// Create the Subscriber's in the DDS Domain.
OwnershipDataSubscriber = createSubscriber();
// Request a Reader from the the Subscriber.
OwnershipDataDataReader = createDataReader(OwnershipDataSubscriber, g_StockTopic);
printf("\n\n ===[OwnershipDataSubscriber] Ready...");
printf("\n\n Ticker Price Publisher ownership strength");
isClosed = FALSE;
do
{
g_status = OwnershipData_StockDataReader_take(OwnershipDataDataReader, msgList, infoSeq, 1, DDS_ANY_SAMPLE_STATE, DDS_ANY_VIEW_STATE, DDS_ANY_INSTANCE_STATE);
checkStatus(g_status, "OwnershipData_StockDataReaderView_take");
if( msgList->_length > 0 )
{
j = 0;
do
{
OwnershipDataSample = &msgList->_buffer[j];
// When is this supposed to happen?
// Needs comment...
if( infoSeq->_buffer[j].valid_data )
{
printf("\n %s %8.1f %s %d", OwnershipDataSample->ticker, OwnershipDataSample->price, OwnershipDataSample->publisher, OwnershipDataSample->strength);
if( OwnershipDataSample->price == (DDS_float) -1.0f )
{
printf("\n ===[OwnershipDataSubscriber] OwnershipDataSample->price == -1.0f ");
isClosed = TRUE;
}
}
}
while( ++j < msgList->_length );
g_status = OwnershipData_StockDataReader_return_loan(OwnershipDataDataReader, msgList, infoSeq);
checkStatus(g_status, "OwnershipData_StockDataReaderView_return_loan");
}
os_nanoSleep(os_delay200);
++count;
}
while( isClosed == FALSE && count < 1500 );
printf("\n\n ===[OwnershipDataSubscriber] Market closed");
// Cleanup DDS from the created Entities.
deleteDataReader(OwnershipDataSubscriber, OwnershipDataDataReader);
deleteSubscriber(OwnershipDataSubscriber);
deleteTopic(g_StockTopic);
deleteParticipant();
// Cleanup C allocations,
// recursively freeing the allocated structures and sequences using the OpenSplice API.
DDS__free(msgList);
DDS__free(infoSeq);
// Print out an empty line, just to let behind a clean new line for the shell..
printf("\n\r");
return 0;
}
