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tweaks to normCast example

pull/9/head
bebopagogo 2019-12-27 20:48:54 -05:00
parent e4a3d74512
commit 24199cd310
1 changed files with 16 additions and 25 deletions
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41
examples/normCast.cpp
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@ -9,7 +9,7 @@
#include <sys/select.h>
#endif // if/else WIN32/UNIX
#define SHOOT_NOW 1
#define SHOOT_FIRST 1
// I usually avoid using Protlib stuff for NORM API examples to keep things clearer,
// but the couple of classes here are useful helpers from the Protolib C++ toolkit.
@ -107,7 +107,7 @@ class NormCaster
{NormSetTxLoss(norm_session, txloss);}
private:
bool is_running;
bool is_running;
NormSessionHandle norm_session;
ProtoFile::PathList tx_file_list;
ProtoFile::PathList::PathIterator tx_file_iterator;
@ -190,7 +190,6 @@ bool NormCaster::OpenNormSession(NormInstanceHandle instance, const char* addr,
}
// Set some default parameters (maybe we should put all parameter setting in Start())
fprintf(stderr, "setting rx cache limit to %u\n", norm_tx_queue_max);
if (norm_tx_queue_max > 65535/2) norm_tx_queue_max = 65535/2;
NormSetRxCacheLimit(norm_session, norm_tx_queue_max);
NormSetDefaultSyncPolicy(norm_session, NORM_SYNC_ALL);
@ -259,7 +258,7 @@ bool NormCaster::Start(bool sender, bool receiver)
// Note: NormPreallocateRemoteSender() MUST be called AFTER NormStartReceiver()
NormPreallocateRemoteSender(norm_session, bufferSize, segmentSize, blockSize, numParity, bufferSize);
NormSetRxSocketBuffer(norm_session, rxSockBufferSize);
fprintf(stderr, "normCast: receiver ready.\n");
fprintf(stderr, "normCast: receiver ready ...\n");
}
if (sender)
{
@ -357,21 +356,16 @@ void NormCaster::SendFiles()
{
sent_count++;
// Get next file name from our "tx_file_list"
if (!!StageNextTxFile())
if (!StageNextTxFile())
{
// We have reach end of tx_file_list, so either
// we're done or we reset tx_file_iterator
// If we're done and requesting ACK, finish up nicely with final waterrmark
if (norm_acking)
{
if (NORM_OBJECT_INVALID == norm_last_object)
{
TRACE("normCast sender STOP 2 ...\n");
is_running = false; // everything already sent and acked
}
else if (!norm_flushing)
if ((NORM_OBJECT_INVALID != norm_last_object) && !norm_flushing)
{
// End-of-transmission ack request (not needed if "norm_flushing"
NormSetWatermark(norm_session, norm_last_object, true);
}
}
@ -379,7 +373,7 @@ void NormCaster::SendFiles()
}
else
{
// locked by NORM flow control ...
// blocked by NORM flow control ... will get cued by notification as described above
ASSERT(!TxReady());
break;
}
@ -426,7 +420,7 @@ bool NormCaster::EnqueueFileObject()
norm_tx_vacancy = false;
return false;
}
fprintf(stderr, "normCast: enqueued \"%s\" for transmision ...\n", namePtr);
fprintf(stderr, "normCast: enqueued \"%s\" for transmission ...\n", namePtr);
if (norm_acking)
{
// ack-based flow control has been enabled
@ -437,7 +431,7 @@ bool NormCaster::EnqueueFileObject()
norm_last_object = object;
norm_flow_control_pending = true;
}
else if (norm_flushing) // per-message acking
else if (norm_flushing) // per-file flushing/acking
{
#ifdef SHOOT_FIRST
NormSetWatermark(norm_session, object, true);
@ -458,7 +452,6 @@ bool NormCaster::EnqueueFileObject()
{
norm_last_object = object;
}
TRACE("norm_last_object: %p\n", norm_last_object);
}
return true;
} // end NormCaster::EnqueueFileObject()
@ -480,8 +473,8 @@ void NormCaster::HandleNormEvent(const NormEvent& event)
case NORM_TX_WATERMARK_COMPLETED:
if (NORM_ACK_SUCCESS == NormGetAckingStatus(norm_session))
{
//fprintf(stderr, "WATERMARK COMPLETED\n");
norm_last_object = NORM_OBJECT_INVALID;
bool txFilePending = TxFilePending(); // need to check this _before_ possible call to SendFiles()
if (norm_flow_control_pending)
{
norm_tx_queue_count -= (norm_tx_queue_max / 2);
@ -492,10 +485,12 @@ void NormCaster::HandleNormEvent(const NormEvent& event)
norm_last_object = norm_flush_object;
norm_flush_object = NORM_OBJECT_INVALID;
}
if (txFilePending) SendFiles();
}
if (NORM_OBJECT_INVALID == norm_last_object)
if (!txFilePending)
{
TRACE("normCast sender STOP 1 ...\n");
// No more files to send and all have been acknowledged
fprintf(stderr, "normCast: final file acknowledged, exiting ...\n");
is_running = false;
}
}
@ -560,8 +555,7 @@ void NormCaster::HandleNormEvent(const NormEvent& event)
if ('/' == fileName[i])
fileName[i] = PROTO_PATH_DELIMITER;
}
TRACE("got info renaming to: %s\n", fileName);
if (!NormFileRename(event.object, fileName))
if (!NormFileRename(event.object, fileName))
perror("normCast: rx file rename error");
break;
}
@ -1011,16 +1005,13 @@ int main(int argc, char* argv[])
NormCloseDebugLog(normInstance);
fprintf(stderr, "destroying session ...\n");
normCast.CloseNormSession();
fprintf(stderr, "destroying instance ...\n");
NormDestroyInstance(normInstance);
normCast.Destroy();
fprintf(stderr, "normCast exiting ...\n");
fprintf(stderr, "normCast done.\n");
} // end main()