feat(tcp): TCPStreamer DataSources, in-process TCPStreamService, stream multiplexing and TCPStreamJoin

Add TCPStreamer/TCPStreamerClient (TCP transport behind the UDPSServerI/UDPSClientI
seam), an optional single in-process TCPStreamService serving many streams over
worker threads, multiplexed SUBSCRIBE (comma list, stream index in fragmentIdx),
and TCPStreamJoin, which merges several streams into one sample-and-hold stream
paced by a master. StreamHub takes a comma list of streams over one connection.
Includes GTests, E2E scenarios s58-s73 and docs.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Martino FerrariandClaude Opus 4.6 committed 2026-11-06 13:41:27 +01:00
1 parent 5562877c99
commit 50d85363a3
79 files changed
+12348 -138

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@@ -0,0 +1 @@
include Makefile.inc
@@ -0,0 +1,33 @@
#############################################################
# MARTe2 Integrated Components — TCPStreamService
#############################################################
OBJSX=TCPSFrameQueue.x TCPSServiceStream.x TCPSWorker.x TCPStreamService.x TCPStreamJoin.x
PACKAGE=Components/Interfaces
ROOT_DIR=../../../../
MAKEDEFAULTDIR=$(MARTe2_DIR)/MakeDefaults
include $(MAKEDEFAULTDIR)/MakeStdLibDefs.$(TARGET)
INCLUDES += -I.
INCLUDES += -I$(ROOT_DIR)/Common/UDP
INCLUDES += -I$(ROOT_DIR)/Source/Components/Interfaces/UDPStream
INCLUDES += -I$(MARTe2_DIR)/Source/Core/BareMetal/L0Types
INCLUDES += -I$(MARTe2_DIR)/Source/Core/BareMetal/L1Portability
INCLUDES += -I$(MARTe2_DIR)/Source/Core/BareMetal/L2Objects
INCLUDES += -I$(MARTe2_DIR)/Source/Core/BareMetal/L3Streams
INCLUDES += -I$(MARTe2_DIR)/Source/Core/BareMetal/L4Messages
INCLUDES += -I$(MARTe2_DIR)/Source/Core/BareMetal/L4Configuration
INCLUDES += -I$(MARTe2_DIR)/Source/Core/Scheduler/L1Portability
INCLUDES += -I$(MARTe2_DIR)/Source/Core/Scheduler/L3Services
INCLUDES += -I$(MARTe2_DIR)/Source/Core/FileSystem/L1Portability
INCLUDES += -I$(MARTe2_DIR)/Source/Core/FileSystem/L3Streams
all: $(OBJS) $(SUBPROJ) \
$(BUILD_DIR)/TCPStreamService$(LIBEXT) \
$(BUILD_DIR)/TCPStreamService$(DLLEXT)
echo $(OBJS)
include depends.$(TARGET)
include $(MAKEDEFAULTDIR)/MakeStdLibRules.$(TARGET)
@@ -0,0 +1,70 @@
#ifndef TCPS_CONN_H_
#define TCPS_CONN_H_
/**
* @file TCPSConn.h
* @brief One accepted connection of a TCPStreamService (internal).
*
* Ownership: created by the acceptor thread, then owned and deleted by exactly
* one TCPSWorker. `streams` and `closeRequested` are the only fields touched
* from other threads; `stream` is guarded by the service topology lock, the
* queue by `qMutex`.
*/
#include "CompilerTypes.h"
#include "FastPollingMutexSem.h"
#include "TCPSFrameQueue.h"
#include "TCPStreamService.h"
#include "UDPSProtocol.h"
#include <unistd.h>
namespace MARTe {
class TCPSWorker;
class TCPSServiceStream;
struct TCPSConn {
TCPSConn(int socketFd, TCPSWorker *owner, uint32 queueDepth, uint64 handshakeDeadline)
: fd(socketFd), worker(owner), subscribed(false), hsHave(0u),
hsWant(UDPS_HEADER_SIZE), hsHeaderOk(false), hsDeadline(handshakeDeadline),
numStreams(0u), closeRequested(false) {
for (uint32 i = 0u; i < TCPS_MAX_CONN_STREAMS; i++) {
streams[i] = NULL_PTR(TCPSServiceStream *);
}
q.Init(queueDepth);
}
~TCPSConn() {
if (fd >= 0) {
(void)close(fd);
}
}
int fd;
TCPSWorker *worker;
/* Worker-thread only. */
bool subscribed;
uint8 hs[UDPS_HEADER_SIZE + TCPS_MAX_SUBSCRIBE_PAYLOAD + 1u];
uint32 hsHave;
uint32 hsWant;
bool hsHeaderOk;
uint64 hsDeadline;
/* Service topology lock. */
TCPSServiceStream *streams[TCPS_MAX_CONN_STREAMS]; ///< index = stream index on the wire
uint32 numStreams;
volatile bool closeRequested;
/* qMutex. */
FastPollingMutexSem qMutex;
TCPSFrameQueue q;
private:
TCPSConn(const TCPSConn &);
TCPSConn &operator=(const TCPSConn &);
};
} // namespace MARTe
#endif // TCPS_CONN_H_
@@ -0,0 +1,204 @@
/**
* @file TCPSFrameQueue.cpp
* @brief Implementation of TCPSFrameQueue.
*/
#include "TCPSFrameQueue.h"
#include "HighResolutionTimer.h"
#include <errno.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/uio.h>
#include <sys/types.h>
namespace MARTe {
struct TCPSFrameQueue::Slot {
Slot() : buf(NULL_PTR(uint8 *)), cap(0u), len(0u), isConfig(false), stream(0u) {}
~Slot() {
if (buf != NULL_PTR(uint8 *)) {
delete[] buf;
}
}
uint8 *buf;
uint32 cap;
uint32 len;
bool isConfig;
uint16 stream;
};
/** magic(4) + type(1) + counter(4): offset of the header's fragmentIdx field. */
static const uint32 TCPS_FRAGIDX_OFFSET = 9u;
TCPSFrameQueue::TCPSFrameQueue()
: slots(NULL_PTR(Slot **)), cap(0u), depth(0u), count(0u), sent(0u), lastProgress(0u) {
}
TCPSFrameQueue::~TCPSFrameQueue() {
if (slots != NULL_PTR(Slot **)) {
for (uint32 i = 0u; i < cap; i++) {
delete slots[i];
}
delete[] slots;
}
}
void TCPSFrameQueue::Init(uint32 d) {
depth = d;
cap = d + 2u;
slots = new Slot *[cap];
for (uint32 i = 0u; i < cap; i++) {
slots[i] = new Slot();
}
count = 0u;
sent = 0u;
lastProgress = HighResolutionTimer::Counter();
}
void TCPSFrameQueue::Reserve(uint32 numStreams) {
const uint32 want = numStreams * (depth + 2u);
if (want > cap) {
Slot **grown = new Slot *[want];
for (uint32 i = 0u; i < cap; i++) {
grown[i] = slots[i];
}
for (uint32 i = cap; i < want; i++) {
grown[i] = new Slot();
}
delete[] slots;
slots = grown;
cap = want;
}
}
/** Remove slot @p i, keeping order; the slot object is recycled at the end. */
void TCPSFrameQueue::RemoveAt(uint32 i) {
Slot *v = slots[i];
for (uint32 j = i + 1u; j < count; j++) {
slots[j - 1u] = slots[j];
}
slots[count - 1u] = v;
count--;
}
bool TCPSFrameQueue::Push(uint16 streamIdx, bool isConfig, const uint8 *frame,
uint32 frameBytes, uint32 &dropped) {
const uint32 firstFree = (sent > 0u) ? 1u : 0u; // slots below this are on the wire
if (isConfig) {
uint32 i = firstFree;
while (i < count) {
if (slots[i]->stream == streamIdx) {
if (!slots[i]->isConfig) {
dropped++;
}
RemoveAt(i);
} else {
i++;
}
}
} else {
uint32 dataCount = 0u;
for (uint32 i = 0u; i < count; i++) {
if ((slots[i]->stream == streamIdx) && !slots[i]->isConfig) {
dataCount++;
}
}
if (dataCount >= depth) {
uint32 victim = count;
for (uint32 i = firstFree; (i < count) && (victim == count); i++) {
if ((slots[i]->stream == streamIdx) && !slots[i]->isConfig) {
victim = i;
}
}
dropped++;
if (victim == count) {
return false; // only the frame on the wire is queued
}
RemoveAt(victim);
}
}
if (count >= cap) {
dropped++;
return false;
}
Slot &s = *slots[count];
if (s.cap < frameBytes) {
if (s.buf != NULL_PTR(uint8 *)) {
delete[] s.buf;
}
s.buf = new uint8[frameBytes];
s.cap = frameBytes;
}
memcpy(s.buf, frame, frameBytes);
if (frameBytes >= (TCPS_FRAGIDX_OFFSET + 2u)) {
memcpy(&s.buf[TCPS_FRAGIDX_OFFSET], &streamIdx, 2u);
}
s.len = frameBytes;
s.isConfig = isConfig;
s.stream = streamIdx;
if (count == 0u) {
sent = 0u;
lastProgress = HighResolutionTimer::Counter();
}
count++;
return true;
}
/** Account for @p bytes written from the head of the queue. */
void TCPSFrameQueue::Consume(uint32 bytes) {
while ((bytes > 0u) && (count > 0u)) {
const uint32 left = slots[0]->len - sent;
if (bytes >= left) {
bytes -= left;
RemoveAt(0u);
sent = 0u;
} else {
sent += bytes;
bytes = 0u;
}
}
}
bool TCPSFrameQueue::Flush(int fd) {
bool alive = true;
while (alive && (count > 0u)) {
struct iovec iov[TCPS_MAX_BATCH];
uint32 n = (count < TCPS_MAX_BATCH) ? count : TCPS_MAX_BATCH;
for (uint32 i = 0u; i < n; i++) {
const uint32 off = (i == 0u) ? sent : 0u;
iov[i].iov_base = &slots[i]->buf[off];
iov[i].iov_len = slots[i]->len - off;
}
struct msghdr msg;
memset(&msg, 0, sizeof(msg));
msg.msg_iov = iov;
msg.msg_iovlen = n;
ssize_t w = sendmsg(fd, &msg, MSG_NOSIGNAL | MSG_DONTWAIT);
if (w > 0) {
lastProgress = HighResolutionTimer::Counter();
Consume(static_cast<uint32>(w));
} else if ((w < 0) && ((errno == EAGAIN) || (errno == EWOULDBLOCK))) {
break;
} else if ((w < 0) && (errno == EINTR)) {
continue;
} else {
alive = false;
}
}
return alive;
}
bool TCPSFrameQueue::Empty() const {
return count == 0u;
}
uint64 TCPSFrameQueue::LastProgress() const {
return lastProgress;
}
} // namespace MARTe
@@ -0,0 +1,79 @@
#ifndef TCPS_FRAME_QUEUE_H_
#define TCPS_FRAME_QUEUE_H_
/**
* @file TCPSFrameQueue.h
* @brief Bounded per-connection output queue of UDPS frames (header + payload).
*
* Same semantics as the per-client queue inside TCPSServer: at most `depth`
* DATA frames wait; when full the oldest DATA frame that is not already
* (partially) on the wire is discarded and counted. A CONFIG is never dropped
* and, when queued, discards the DATA frames behind the one on the wire (they
* were encoded for the previous layout).
*
* Not thread-safe: the owner serialises Push() / Flush().
*/
#include "CompilerTypes.h"
namespace MARTe {
class TCPSFrameQueue {
public:
TCPSFrameQueue();
~TCPSFrameQueue();
/** Allocate `depth` DATA slots plus two CONFIG slots (room for one stream). */
void Init(uint32 depth);
/**
* Make room for @p numStreams multiplexed streams: each gets its own `depth`
* DATA frames plus two CONFIG slots. Grow-only; call while the queue is idle
* (before the connection is attached to any stream).
*/
void Reserve(uint32 numStreams);
/**
* Append a complete frame (copied). The frame is stamped with @p streamIdx in
* its header's fragmentIdx field. Accounting is per stream: a full stream
* evicts its own oldest DATA, and a CONFIG only discards the queued frames
* of its own stream.
* @param[in,out] dropped incremented by the number of DATA frames discarded.
* @return false if the frame itself was refused (queue full of in-flight data).
*/
bool Push(uint16 streamIdx, bool isConfig, const uint8 *frame, uint32 frameBytes,
uint32 &dropped);
/**
* Write as much as the socket accepts without blocking, batching up to
* TCPS_MAX_BATCH frames per system call.
* @return false if the connection is broken.
*/
bool Flush(int fd);
/** Most frames sent by one sendmsg(). */
static const uint32 TCPS_MAX_BATCH = 16u;
bool Empty() const;
/** HRT ticks of the last byte written (or of the queue becoming non-empty). */
uint64 LastProgress() const;
private:
struct Slot;
TCPSFrameQueue(const TCPSFrameQueue &);
TCPSFrameQueue &operator=(const TCPSFrameQueue &);
void RemoveAt(uint32 i);
void Consume(uint32 bytes);
Slot **slots;
uint32 cap;
uint32 depth;
uint32 count;
uint32 sent;
uint64 lastProgress;
};
} // namespace MARTe
#endif // TCPS_FRAME_QUEUE_H_
@@ -0,0 +1,329 @@
/**
* @file TCPSServiceStream.cpp
* @brief Implementation of TCPSServiceStream.
*/
#define DLL_API
#include "TCPSServiceStream.h"
#include "AdvancedErrorManagement.h"
#include "ObjectRegistryDatabase.h"
#include "TCPSConn.h"
#include "TCPSWorker.h"
#include <string.h>
namespace MARTe {
const uint32 TCPSServiceStream::TCPSS_DEFAULT_MAX_PAYLOAD;
static const uint32 TCPSS_MAX_FRAME_PAYLOAD = 1048576u;
TCPSServiceStream::TCPSServiceStream(const char8 *serviceObjectName, const char8 *name)
: serviceName(serviceObjectName), streamName(name), registered(false),
maxPayloadSize(TCPSS_DEFAULT_MAX_PAYLOAD), subs(NULL_PTR(TCPSConn **)), subIdx(NULL_PTR(uint16 *)),
capSubs(0u), numSubs(0u), cachedConfigFrame(NULL_PTR(uint8 *)),
cachedConfigBytes(0u), cachedConfigCap(0u), configCounter(0u), drops(0u),
numTaps(0u), dataFrame(NULL_PTR(uint8 *)), dataFrameCap(0u) {
for (uint32 i = 0u; i < TCPSS_MAX_TAPS; i++) {
taps[i] = NULL_PTR(TCPSStreamTapI *);
}
}
TCPSServiceStream::~TCPSServiceStream() {
(void)Stop();
if (cachedConfigFrame != NULL_PTR(uint8 *)) {
delete[] cachedConfigFrame;
}
if (dataFrame != NULL_PTR(uint8 *)) {
delete[] dataFrame;
}
if (subs != NULL_PTR(TCPSConn **)) {
delete[] subs;
}
if (subIdx != NULL_PTR(uint16 *)) {
delete[] subIdx;
}
}
bool TCPSServiceStream::Initialise(StructuredDataI &data) {
bool ok = true;
maxPayloadSize = TCPSS_DEFAULT_MAX_PAYLOAD;
(void)data.Read("MaxPayloadSize", maxPayloadSize);
if ((maxPayloadSize == 0u) || (maxPayloadSize > TCPSS_MAX_FRAME_PAYLOAD)) {
REPORT_ERROR_STATIC(ErrorManagement::ParametersError,
"TCPSServiceStream: MaxPayloadSize %u must be in 1..%u.",
maxPayloadSize, TCPSS_MAX_FRAME_PAYLOAD);
ok = false;
}
if ((streamName.Size() > 0u) && (strchr(streamName.Buffer(), ',') != NULL_PTR(char8 *))) {
REPORT_ERROR_STATIC(ErrorManagement::ParametersError,
"TCPSServiceStream: StreamName '%s' may not contain a comma.",
streamName.Buffer());
ok = false;
}
if ((streamName.Size() == 0u) || (streamName.Size() > TCPS_MAX_STREAM_NAME)) {
REPORT_ERROR_STATIC(ErrorManagement::ParametersError,
"TCPSServiceStream: StreamName must be 1..%u characters.",
TCPS_MAX_STREAM_NAME);
ok = false;
}
return ok;
}
bool TCPSServiceStream::Start() {
if (registered) {
return true;
}
if (!service.IsValid()) {
ReferenceT<TCPStreamService> found =
ObjectRegistryDatabase::Instance()->Find(serviceName.Buffer());
if (!found.IsValid()) {
REPORT_ERROR_STATIC(ErrorManagement::InitialisationError,
"TCPSServiceStream: no TCPStreamService named '%s'.",
serviceName.Buffer());
return false;
}
service = found;
}
mutex.FastLock();
if (subs == NULL_PTR(TCPSConn **)) {
capSubs = service->MaxClients();
subs = new TCPSConn *[capSubs];
subIdx = new uint16[capSubs];
}
numSubs = 0u;
mutex.FastUnLock();
registered = service->RegisterStream(this);
return registered;
}
bool TCPSServiceStream::Stop() {
if (registered) {
service->UnregisterStream(this); // drops every subscriber
registered = false;
}
mutex.FastLock();
if (cachedConfigFrame != NULL_PTR(uint8 *)) {
cachedConfigBytes = 0u;
}
mutex.FastUnLock();
return true;
}
void TCPSServiceStream::ServiceClients() {
}
bool TCPSServiceStream::BuildFrame(uint8 *&buf, uint32 &cap, uint8 type, uint32 counter,
const uint8 *payload, uint32 payloadSize,
uint32 &frameBytes) {
bool ok = (payloadSize <= TCPSS_MAX_FRAME_PAYLOAD);
if (ok) {
const uint32 need = UDPS_HEADER_SIZE + payloadSize;
if (cap < need) {
if (buf != NULL_PTR(uint8 *)) {
delete[] buf;
}
buf = new uint8[need];
cap = need;
}
UDPSBuildHeader(buf, type, counter, 0u, 1u, payloadSize);
if (payloadSize > 0u) {
memcpy(&buf[UDPS_HEADER_SIZE], payload, payloadSize);
}
frameBytes = need;
}
return ok;
}
/** Caller holds `mutex`. */
void TCPSServiceStream::Distribute(bool isConfig, const uint8 *frame, uint32 frameBytes) {
for (uint32 i = 0u; i < numSubs; i++) {
TCPSConn *c = subs[i];
uint32 dropped = 0u;
c->qMutex.FastLock();
const bool wasEmpty = c->q.Empty();
(void)c->q.Push(subIdx[i], isConfig, frame, frameBytes, dropped);
c->qMutex.FastUnLock();
drops += dropped;
if (wasEmpty) {
c->worker->Wake();
}
}
}
bool TCPSServiceStream::SendConfig(const uint8 *payload, uint32 payloadSize) {
if (!registered) {
return false;
}
if (payloadSize > TCPSS_MAX_FRAME_PAYLOAD) {
REPORT_ERROR_STATIC(ErrorManagement::ParametersError,
"TCPSServiceStream: CONFIG of %u bytes exceeds the frame limit.",
payloadSize);
return false;
}
mutex.FastLock();
configCounter++;
bool ok = BuildFrame(cachedConfigFrame, cachedConfigCap, UDPS_TYPE_CONFIG, configCounter,
payload, payloadSize, cachedConfigBytes);
if (ok) {
Distribute(true, cachedConfigFrame, cachedConfigBytes);
}
mutex.FastUnLock();
if (ok && (numTaps > 0u)) {
tapMutex.FastLock();
for (uint32 i = 0u; i < numTaps; i++) {
taps[i]->OnTapConfig(this, payload, payloadSize);
}
tapMutex.FastUnLock();
}
return ok;
}
bool TCPSServiceStream::SendData(uint32 counter, const uint8 *payload, uint32 payloadSize) {
if (!registered) {
return false;
}
if (numTaps > 0u) {
tapMutex.FastLock();
for (uint32 i = 0u; i < numTaps; i++) {
taps[i]->OnTapData(this, counter, payload, payloadSize);
}
tapMutex.FastUnLock();
}
if (numSubs == 0u) {
return true;
}
uint32 frameBytes = 0u;
if (!BuildFrame(dataFrame, dataFrameCap, UDPS_TYPE_DATA, counter, payload, payloadSize,
frameBytes)) {
REPORT_ERROR_STATIC(ErrorManagement::ParametersError,
"TCPSServiceStream: DATA of %u bytes exceeds the frame limit.",
payloadSize);
return false;
}
mutex.FastLock();
Distribute(false, dataFrame, frameBytes);
mutex.FastUnLock();
return true;
}
bool TCPSServiceStream::AddTap(TCPSStreamTapI *tap) {
bool ok = false;
uint8 *cfg = NULL_PTR(uint8 *);
uint32 cfgBytes = 0u;
mutex.FastLock();
if (cachedConfigBytes > UDPS_HEADER_SIZE) {
cfgBytes = cachedConfigBytes - UDPS_HEADER_SIZE;
cfg = new uint8[cfgBytes];
memcpy(cfg, &cachedConfigFrame[UDPS_HEADER_SIZE], cfgBytes);
}
mutex.FastUnLock();
tapMutex.FastLock();
if (numTaps < TCPSS_MAX_TAPS) {
taps[numTaps] = tap;
numTaps = numTaps + 1u;
ok = true;
if (cfg != NULL_PTR(uint8 *)) {
tap->OnTapConfig(this, cfg, cfgBytes);
}
}
tapMutex.FastUnLock();
if (cfg != NULL_PTR(uint8 *)) {
delete[] cfg;
}
return ok;
}
void TCPSServiceStream::RemoveTap(TCPSStreamTapI *tap) {
tapMutex.FastLock();
for (uint32 i = 0u; i < numTaps; i++) {
if (taps[i] == tap) {
taps[i] = taps[numTaps - 1u];
numTaps = numTaps - 1u;
break;
}
}
tapMutex.FastUnLock();
}
bool TCPSServiceStream::HasClients() const {
/* A tap (TCPStreamJoin) consumes frames like a subscriber: the producer must keep publishing. */
return (numSubs > 0u) || (numTaps > 0u);
}
bool TCPSServiceStream::IsMulticast() const {
return false;
}
uint16 TCPSServiceStream::GetPort() const {
return service.IsValid() ? service->GetBoundPort() : static_cast<uint16>(0u);
}
const char8 *TCPSServiceStream::GetStreamName() const {
return streamName.Buffer();
}
uint32 TCPSServiceStream::GetClientCount() const {
return numSubs;
}
uint64 TCPSServiceStream::GetClientDrops() const {
return drops;
}
uint32 TCPSServiceStream::GetMaxPayloadSize() const {
return maxPayloadSize;
}
bool TCPSServiceStream::AttachConn(TCPSConn *c, uint16 streamIdx) {
bool ok = false;
mutex.FastLock();
if (numSubs < capSubs) {
// The CONFIG goes in first so the client always decodes DATA against it.
if (cachedConfigBytes > 0u) {
uint32 dropped = 0u;
c->qMutex.FastLock();
(void)c->q.Push(streamIdx, true, cachedConfigFrame, cachedConfigBytes, dropped);
c->qMutex.FastUnLock();
}
subs[numSubs] = c;
subIdx[numSubs] = streamIdx;
numSubs = numSubs + 1u;
ok = true;
}
mutex.FastUnLock();
return ok;
}
void TCPSServiceStream::DetachConn(TCPSConn *c) {
mutex.FastLock();
for (uint32 i = 0u; i < numSubs; i++) {
if (subs[i] == c) {
subs[i] = subs[numSubs - 1u];
subIdx[i] = subIdx[numSubs - 1u];
numSubs = numSubs - 1u;
break;
}
}
mutex.FastUnLock();
}
void TCPSServiceStream::DropAllConns() {
mutex.FastLock();
for (uint32 i = 0u; i < numSubs; i++) {
TCPSConn *c = subs[i];
for (uint32 k = 0u; k < c->numStreams; k++) {
if (c->streams[k] == this) {
c->streams[k] = NULL_PTR(TCPSServiceStream *);
}
}
subs[i]->closeRequested = true;
subs[i]->worker->Wake();
}
numSubs = 0u;
mutex.FastUnLock();
}
} // namespace MARTe
@@ -0,0 +1,110 @@
#ifndef TCPS_SERVICE_STREAM_H_
#define TCPS_SERVICE_STREAM_H_
/**
* @file TCPSServiceStream.h
* @brief UDPSServerI handle that publishes one named stream through a
* TCPStreamService instead of through a private listening socket.
*
* It is what a TCPStreamer uses when its `Service` key is set. All socket work
* (accept, handshake, flush, eviction) is done by the service's threads; the
* producer thread only builds the frame and copies it into the bounded queue of
* every subscribed connection (SendData never blocks on a socket).
*/
#include "FastPollingMutexSem.h"
#include "ReferenceT.h"
#include "StreamString.h"
#include "MutexSem.h"
#include "TCPSStreamTapI.h"
#include "TCPStreamService.h"
#include "UDPSProtocol.h"
#include "UDPSTransportI.h"
namespace MARTe {
struct TCPSConn;
class TCPSServiceStream : public UDPSServerI {
public:
/** Default maximum payload bytes per frame (matches TCPSServer). */
static const uint32 TCPSS_DEFAULT_MAX_PAYLOAD = 60000u;
TCPSServiceStream(const char8 *serviceObjectName, const char8 *streamName);
virtual ~TCPSServiceStream();
/** Keys: MaxPayloadSize (uint32, 1..1 MiB, default 60000). */
virtual bool Initialise(StructuredDataI &data);
/** Resolve the service by name and register the stream (fails on a duplicate name). */
virtual bool Start();
/** Unregister and drop every subscriber (idempotent). */
virtual bool Stop();
/** No-op: the service threads do the housekeeping. */
virtual void ServiceClients();
virtual bool SendConfig(const uint8 *payload, uint32 payloadSize);
virtual bool SendData(uint32 counter, const uint8 *payload, uint32 payloadSize);
virtual bool HasClients() const;
virtual bool IsMulticast() const;
/** @return the service's bound port (0 while the service is unresolved). */
virtual uint16 GetPort() const;
const char8 *GetStreamName() const;
uint32 GetClientCount() const;
/** @return DATA frames discarded for slow subscribers (all time). */
uint64 GetClientDrops() const;
uint32 GetMaxPayloadSize() const;
/** Most taps one stream can carry. */
static const uint32 TCPSS_MAX_TAPS = 4u;
/**
* Observe every CONFIG / DATA this stream publishes. The cached CONFIG (if any) is
* replayed to the new tap before AddTap returns. Taps run on the producer thread.
* @return false if the tap table is full.
*/
bool AddTap(TCPSStreamTapI *tap);
/** Remove a tap; once it returns no callback is running or will start. */
void RemoveTap(TCPSStreamTapI *tap);
/* ---- called by TCPStreamService with its topology lock held ---- */
/** Add a connection and prime it with the cached CONFIG. @return false if full. */
bool AttachConn(TCPSConn *c, uint16 streamIdx);
void DetachConn(TCPSConn *c);
/** Ask every subscriber to close and forget them. */
void DropAllConns();
private:
bool BuildFrame(uint8 *&buf, uint32 &cap, uint8 type, uint32 counter,
const uint8 *payload, uint32 payloadSize, uint32 &frameBytes);
void Distribute(bool isConfig, const uint8 *frame, uint32 frameBytes);
StreamString serviceName;
mutable StreamString streamName;
ReferenceT<TCPStreamService> service;
bool registered;
uint32 maxPayloadSize;
FastPollingMutexSem mutex; ///< guards subs, numSubs, cachedConfig*, drops
TCPSConn **subs;
uint16 *subIdx; ///< stream index each subscriber knows this stream by
uint32 capSubs;
volatile uint32 numSubs;
uint8 *cachedConfigFrame;
uint32 cachedConfigBytes;
uint32 cachedConfigCap;
uint32 configCounter;
uint64 drops;
FastPollingMutexSem tapMutex; ///< held while a tap callback runs
TCPSStreamTapI *taps[TCPSS_MAX_TAPS];
volatile uint32 numTaps;
uint8 *dataFrame; ///< producer-thread scratch
uint32 dataFrameCap;
TCPSServiceStream(const TCPSServiceStream &);
TCPSServiceStream &operator=(const TCPSServiceStream &);
};
} // namespace MARTe
#endif // TCPS_SERVICE_STREAM_H_
@@ -0,0 +1,40 @@
#ifndef TCPS_STREAM_TAP_I_H_
#define TCPS_STREAM_TAP_I_H_
/**
* @file TCPSStreamTapI.h
* @brief Hooks used by TCPStreamJoin to follow the streams of a TCPStreamService.
*
* TCPSStreamTapI observes the CONFIG / DATA payloads a stream publishes (on the
* producer's thread, after the frame went to the subscribers). TCPSStreamObserverI
* observes streams registering with / leaving a service.
*/
#include "CompilerTypes.h"
namespace MARTe {
class TCPSServiceStream;
class TCPSStreamTapI {
public:
virtual ~TCPSStreamTapI() {}
/** A CONFIG payload was published (or the cached one is replayed on AddTap). */
virtual void OnTapConfig(TCPSServiceStream *source, const uint8 *payload, uint32 payloadSize) = 0;
/** A DATA payload was published. */
virtual void OnTapData(TCPSServiceStream *source, uint32 counter, const uint8 *payload,
uint32 payloadSize) = 0;
};
class TCPSStreamObserverI {
public:
virtual ~TCPSStreamObserverI() {}
/** @p stream just registered. May call back into the service. */
virtual void OnStreamRegistered(TCPSServiceStream *stream) = 0;
/** @p stream is leaving (it is still valid during the call). */
virtual void OnStreamUnregistered(TCPSServiceStream *stream) = 0;
};
} // namespace MARTe
#endif // TCPS_STREAM_TAP_I_H_
@@ -0,0 +1,266 @@
/**
* @file TCPSWorker.cpp
* @brief Implementation of TCPSWorker.
*/
#define DLL_API
#include "TCPSWorker.h"
#include "AdvancedErrorManagement.h"
#include "Atomic.h"
#include "HighResolutionTimer.h"
#include "TCPSConn.h"
#include "TCPStreamService.h"
#include "UDPSProtocol.h"
#include <errno.h>
#include <fcntl.h>
#include <string.h>
#include <sys/socket.h>
#include <unistd.h>
namespace MARTe {
/** Longest wait in poll(): bounds Stop() latency and the stall / handshake checks. */
static const int TCPS_WORKER_SLICE_MS = 50;
TCPSWorker::TCPSWorker(TCPStreamService &owner, uint32 maxConnections)
: service(owner), maxConns(maxConnections), thread(*this),
incoming(new TCPSConn *[maxConnections]), numIncoming(0u),
conns(new TCPSConn *[maxConnections]), numConns(0u),
pfds(new struct pollfd[maxConnections + 1u]), load(0) {
wakeFd[0] = -1;
wakeFd[1] = -1;
if (pipe(wakeFd) == 0) {
for (int i = 0; i < 2; i++) {
int flags = fcntl(wakeFd[i], F_GETFL, 0);
if (flags >= 0) {
(void)fcntl(wakeFd[i], F_SETFL, flags | O_NONBLOCK);
}
}
}
}
TCPSWorker::~TCPSWorker() {
Stop();
CloseAll();
for (uint32 i = 0u; i < numIncoming; i++) {
delete incoming[i];
service.ConnClosed();
}
delete[] incoming;
delete[] conns;
delete[] pfds;
for (int i = 0; i < 2; i++) {
if (wakeFd[i] >= 0) {
(void)close(wakeFd[i]);
}
}
}
bool TCPSWorker::Start(uint32 cpuMask, uint32 stackSize) {
if (wakeFd[0] < 0) {
return false;
}
thread.SetCPUMask(cpuMask);
thread.SetStackSize(stackSize);
return thread.Start() == ErrorManagement::NoError;
}
void TCPSWorker::Stop() {
(void)thread.Stop();
}
bool TCPSWorker::AddIncoming(TCPSConn *c) {
bool ok = false;
incomingMutex.FastLock();
if (numIncoming < maxConns) {
incoming[numIncoming] = c;
numIncoming++;
ok = true;
}
incomingMutex.FastUnLock();
if (ok) {
Atomic::Increment(&load);
Wake();
}
return ok;
}
void TCPSWorker::Wake() {
if (wakeFd[1] >= 0) {
const uint8 b = 1u;
// EAGAIN means the pipe is already full of wake-ups: nothing to add.
ssize_t r = write(wakeFd[1], &b, 1u);
(void)r;
}
}
int32 TCPSWorker::Load() const {
return load;
}
void TCPSWorker::AdoptIncoming() {
incomingMutex.FastLock();
for (uint32 i = 0u; i < numIncoming; i++) {
conns[numConns] = incoming[i];
numConns++;
}
numIncoming = 0u;
incomingMutex.FastUnLock();
}
void TCPSWorker::CloseConn(TCPSConn *c) {
service.Detach(c);
delete c; // closes the socket
service.ConnClosed();
Atomic::Decrement(&load);
}
void TCPSWorker::CloseAll() {
for (uint32 i = 0u; i < numConns; i++) {
CloseConn(conns[i]);
}
numConns = 0u;
}
bool TCPSWorker::Drain(TCPSConn &c) {
uint8 scratch[64];
bool alive = true;
for (;;) {
ssize_t n = recv(c.fd, scratch, sizeof(scratch), MSG_DONTWAIT);
if (n > 0) {
continue; // clients have nothing more to say after SUBSCRIBE
}
if (n == 0) {
alive = false;
} else if ((errno == EAGAIN) || (errno == EWOULDBLOCK)) {
alive = true;
} else if (errno == EINTR) {
continue;
} else {
alive = false;
}
break;
}
return alive;
}
bool TCPSWorker::HandshakeStep(TCPSConn &c) {
ssize_t n = recv(c.fd, &c.hs[c.hsHave], c.hsWant - c.hsHave, MSG_DONTWAIT);
if (n == 0) {
return false;
}
if (n < 0) {
return (errno == EAGAIN) || (errno == EWOULDBLOCK) || (errno == EINTR);
}
c.hsHave += static_cast<uint32>(n);
if (!c.hsHeaderOk && (c.hsHave >= UDPS_HEADER_SIZE)) {
UDPSPacketHeader h;
memcpy(&h, c.hs, UDPS_HEADER_SIZE);
if ((h.magic != UDPS_MAGIC) || (h.type != UDPS_TYPE_SUBSCRIBE) ||
(h.payloadBytes == 0u) || (h.payloadBytes > TCPS_MAX_SUBSCRIBE_PAYLOAD)) {
REPORT_ERROR_STATIC(ErrorManagement::Warning,
"TCPStreamService: connection did not open with a valid SUBSCRIBE; closing.");
service.NoteRejected();
return false;
}
c.hsHeaderOk = true;
c.hsWant = UDPS_HEADER_SIZE + h.payloadBytes;
}
if (c.hsHeaderOk && (c.hsHave == c.hsWant)) {
c.hs[c.hsWant] = 0u;
char8 *names = reinterpret_cast<char8 *>(&c.hs[UDPS_HEADER_SIZE]);
if (!service.Attach(&c, names)) {
REPORT_ERROR_STATIC(ErrorManagement::Warning,
"TCPStreamService: cannot attach to '%s'; closing.", names);
service.NoteRejected();
return false;
}
c.subscribed = true;
}
return true;
}
ErrorManagement::ErrorType TCPSWorker::Execute(ExecutionInfo &info) {
if (info.GetStage() == ExecutionInfo::TerminationStage) {
return ErrorManagement::NoError;
}
if (info.GetStage() != ExecutionInfo::MainStage) {
return ErrorManagement::NoError;
}
AdoptIncoming();
pfds[0].fd = wakeFd[0];
pfds[0].events = POLLIN;
pfds[0].revents = 0;
for (uint32 i = 0u; i < numConns; i++) {
TCPSConn *c = conns[i];
short ev = POLLIN;
if (c->subscribed) {
c->qMutex.FastLock();
if (!c->q.Empty()) {
ev = static_cast<short>(ev | POLLOUT);
}
c->qMutex.FastUnLock();
}
pfds[i + 1u].fd = c->fd;
pfds[i + 1u].events = ev;
pfds[i + 1u].revents = 0;
}
int pr = poll(pfds, static_cast<nfds_t>(numConns + 1u), TCPS_WORKER_SLICE_MS);
if (pr < 0) {
return ErrorManagement::NoError; // EINTR
}
if ((pfds[0].revents & POLLIN) != 0) {
uint8 sink[64];
while (read(wakeFd[0], sink, sizeof(sink)) > 0) {
}
}
const uint64 now = HighResolutionTimer::Counter();
const uint64 stallTicks = service.StallTicks();
uint32 kept = 0u;
for (uint32 i = 0u; i < numConns; i++) {
TCPSConn *c = conns[i];
const short re = pfds[i + 1u].revents;
bool keep = !c->closeRequested && ((re & (POLLERR | POLLNVAL)) == 0);
if (keep && ((re & (POLLIN | POLLHUP)) != 0)) {
keep = c->subscribed ? Drain(*c) : HandshakeStep(*c);
}
if (keep && c->subscribed) {
c->qMutex.FastLock();
keep = c->q.Flush(c->fd);
if (keep && !c->q.Empty() && (stallTicks > 0u) &&
(now > c->q.LastProgress()) && ((now - c->q.LastProgress()) > stallTicks)) {
REPORT_ERROR_STATIC(ErrorManagement::Warning,
"TCPStreamService: client stalled; disconnecting.");
service.NoteEviction();
keep = false;
}
c->qMutex.FastUnLock();
}
if (keep && !c->subscribed && (now > c->hsDeadline)) {
REPORT_ERROR_STATIC(ErrorManagement::Warning,
"TCPStreamService: SUBSCRIBE timeout; closing.");
service.NoteRejected();
keep = false;
}
if (keep) {
conns[kept] = c;
kept++;
} else {
CloseConn(c);
}
}
numConns = kept;
return ErrorManagement::NoError;
}
} // namespace MARTe
@@ -0,0 +1,68 @@
#ifndef TCPS_WORKER_H_
#define TCPS_WORKER_H_
/**
* @file TCPSWorker.h
* @brief One I/O thread of a TCPStreamService (internal).
*
* Owns a set of connections, polls them (plus a self-pipe used by producers to
* announce new frames), performs the SUBSCRIBE handshake, flushes the bounded
* queues and evicts stalled / dead peers.
*/
#include "EmbeddedServiceMethodBinderI.h"
#include "ExecutionInfo.h"
#include "FastPollingMutexSem.h"
#include "SingleThreadService.h"
#include <poll.h>
namespace MARTe {
class TCPStreamService;
struct TCPSConn;
class TCPSWorker : public EmbeddedServiceMethodBinderI {
public:
TCPSWorker(TCPStreamService &owner, uint32 maxConns);
virtual ~TCPSWorker();
bool Start(uint32 cpuMask, uint32 stackSize);
void Stop();
/** Hand a freshly accepted connection to this worker (acceptor thread). */
bool AddIncoming(TCPSConn *c);
/** Interrupt the poll so queued data is flushed now (any thread, cheap). */
void Wake();
/** @return connections currently assigned (approximate). */
int32 Load() const;
virtual ErrorManagement::ErrorType Execute(ExecutionInfo &info);
private:
void AdoptIncoming();
bool HandshakeStep(TCPSConn &c);
bool Drain(TCPSConn &c);
void CloseConn(TCPSConn *c);
void CloseAll();
TCPStreamService &service;
uint32 maxConns;
SingleThreadService thread;
int wakeFd[2];
FastPollingMutexSem incomingMutex;
TCPSConn **incoming;
uint32 numIncoming;
TCPSConn **conns;
uint32 numConns;
struct pollfd *pfds;
volatile int32 load;
};
} // namespace MARTe
#endif // TCPS_WORKER_H_
@@ -0,0 +1,494 @@
/**
* @file TCPStreamJoin.cpp
* @brief Source file for class TCPStreamJoin
* @date 06/11/2026
* @author Martino Ferrari
*
* @copyright Copyright 2015 F4E | European Joint Undertaking for ITER and
* the Development of Fusion Energy ('Fusion for Energy').
* Licensed under the EUPL, Version 1.1 or - as soon they will be approved
* by the European Commission - subsequent versions of the EUPL (the "Licence")
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at: http://ec.europa.eu/idabc/eupl
*
* @warning Unless required by applicable law or agreed to in writing,
* software distributed under the Licence is distributed on an "AS IS"
* basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the Licence permissions and limitations under the Licence.
*/
#define DLL_API
#include "TCPStreamJoin.h"
#include "AdvancedErrorManagement.h"
#include "ConfigurationDatabase.h"
#include "ObjectRegistryDatabase.h"
#include "UDPSProtocol.h"
#include <stdio.h>
#include <string.h>
namespace MARTe {
const uint32 TCPStreamJoin::TCPSJ_MAX_SOURCES;
TCPStreamJoin::Source::Source()
: stream(NULL_PTR(TCPSServiceStream *)), configOk(false), cfg(NULL_PTR(uint8 *)),
cfgBytes(0u), numSigs(0u), hrt(0u), body(NULL_PTR(uint8 *)), bodyCap(0u),
bodySize(0u), haveBody(false) {
}
TCPStreamJoin::Source::~Source() {
if (cfg != NULL_PTR(uint8 *)) {
delete[] cfg;
}
if (body != NULL_PTR(uint8 *)) {
delete[] body;
}
}
TCPStreamJoin::TCPStreamJoin()
: Object(), TCPSStreamTapI(), TCPSStreamObserverI(), out(NULL_PTR(TCPSServiceStream *)),
observing(false), src(NULL_PTR(Source *)), numSrc(0u), master(0u), maxPayload(60000u),
active(false), configPublished(false), sizeLogged(false), outCounter(0u), emitted(0u),
scratch(NULL_PTR(uint8 *)), scratchCap(0u) {
}
TCPStreamJoin::~TCPStreamJoin() {
if (observing) {
service->RemoveObserver(this);
observing = false;
}
for (uint32 i = 0u; i < numSrc; i++) {
mtx.FastLock();
TCPSServiceStream *s = src[i].stream;
src[i].stream = NULL_PTR(TCPSServiceStream *);
mtx.FastUnLock();
if (s != NULL_PTR(TCPSServiceStream *)) {
s->RemoveTap(this);
}
}
if (out != NULL_PTR(TCPSServiceStream *)) {
delete out; // unregisters the merged stream
out = NULL_PTR(TCPSServiceStream *);
}
if (src != NULL_PTR(Source *)) {
delete[] src;
}
if (scratch != NULL_PTR(uint8 *)) {
delete[] scratch;
}
}
bool TCPStreamJoin::Initialise(StructuredDataI &data) {
bool ok = Object::Initialise(data);
StreamString serviceName;
if (ok && (!data.Read("Service", serviceName) || (serviceName.Size() == 0u))) {
REPORT_ERROR(ErrorManagement::ParametersError, "Parameter 'Service' is required.");
ok = false;
}
if (ok && (!data.Read("StreamName", outName) || (outName.Size() == 0u))) {
outName = GetName();
}
StreamString sources;
if (ok && (!data.Read("Sources", sources) || (sources.Size() == 0u))) {
REPORT_ERROR(ErrorManagement::ParametersError, "Parameter 'Sources' is required.");
ok = false;
}
StreamString masterName;
if (ok && !data.Read("Master", masterName)) {
masterName = "";
}
maxPayload = 60000u;
(void)data.Read("MaxPayloadSize", maxPayload);
if (ok) {
// Split "a, b ,c" into trimmed names.
src = new Source[TCPSJ_MAX_SOURCES];
const char8 *p = sources.Buffer();
while (ok && (p != NULL_PTR(const char8 *))) {
const char8 *comma = strchr(p, ',');
const char8 *end = (comma != NULL_PTR(const char8 *)) ? comma : (p + strlen(p));
while ((p < end) && (*p == ' ')) {
p++;
}
const char8 *e = end;
while ((e > p) && (e[-1] == ' ')) {
e--;
}
const uint32 len = static_cast<uint32>(e - p);
if ((len == 0u) || (len > TCPS_MAX_STREAM_NAME) || (numSrc >= TCPSJ_MAX_SOURCES)) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Sources must list 1..%u names of 1..%u characters.",
TCPSJ_MAX_SOURCES, TCPS_MAX_STREAM_NAME);
ok = false;
}
if (ok) {
StreamString name;
uint32 wlen = len;
(void)name.Write(p, wlen);
for (uint32 i = 0u; i < numSrc; i++) {
if (src[i].name == name) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Source '%s' is listed twice.", name.Buffer());
ok = false;
}
}
if (name == outName) {
REPORT_ERROR(ErrorManagement::ParametersError,
"The merged stream '%s' cannot be one of its own sources.",
name.Buffer());
ok = false;
}
src[numSrc].name = name;
numSrc++;
}
p = (comma != NULL_PTR(const char8 *)) ? (comma + 1) : NULL_PTR(const char8 *);
}
}
if (ok && (masterName.Size() > 0u)) {
const int32 m = FindByName(masterName.Buffer());
if (m < 0) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Master '%s' is not one of the Sources.", masterName.Buffer());
ok = false;
}
else {
master = static_cast<uint32>(m);
}
}
if (ok) {
service = ObjectRegistryDatabase::Instance()->Find(serviceName.Buffer());
if (!service.IsValid()) {
REPORT_ERROR(ErrorManagement::InitialisationError,
"No TCPStreamService named '%s' (declare it before the join).",
serviceName.Buffer());
ok = false;
}
}
if (ok) {
out = new TCPSServiceStream(serviceName.Buffer(), outName.Buffer());
ConfigurationDatabase scdb;
ok = scdb.Write("MaxPayloadSize", maxPayload) && scdb.MoveToRoot() && out->Initialise(scdb);
}
if (ok) {
// Last: the replay of already registered streams may complete the join right here.
observing = service->AddObserver(this);
if (!observing) {
REPORT_ERROR(ErrorManagement::InitialisationError,
"The service cannot take another observer.");
ok = false;
}
}
return ok;
}
int32 TCPStreamJoin::FindByName(const char8 *name) const {
int32 r = -1;
for (uint32 i = 0u; (i < numSrc) && (r < 0); i++) {
if (strcmp(src[i].name.Buffer(), name) == 0) {
r = static_cast<int32>(i);
}
}
return r;
}
int32 TCPStreamJoin::FindByStream(const TCPSServiceStream *s) const {
int32 r = -1;
for (uint32 i = 0u; (i < numSrc) && (r < 0); i++) {
if (src[i].stream == s) {
r = static_cast<int32>(i);
}
}
return r;
}
bool TCPStreamJoin::AllRegistered() const {
bool all = true;
for (uint32 i = 0u; i < numSrc; i++) {
all = all && (src[i].stream != NULL_PTR(TCPSServiceStream *));
}
return all;
}
bool TCPStreamJoin::IsActive() const {
return active;
}
bool TCPStreamJoin::HasConfig() const {
return configPublished;
}
uint64 TCPStreamJoin::GetFramesEmitted() const {
return emitted;
}
uint32 TCPStreamJoin::GetNumSources() const {
return numSrc;
}
void TCPStreamJoin::OnStreamRegistered(TCPSServiceStream *stream) {
bool mine = false;
int32 idx = -1;
mtx.FastLock();
idx = FindByName(stream->GetStreamName());
if ((idx >= 0) && (src[idx].stream == NULL_PTR(TCPSServiceStream *))) {
src[idx].stream = stream;
mine = true;
}
mtx.FastUnLock();
if (!mine) {
return;
}
// Replays the cached CONFIG into OnTapConfig; the join mutex must not be held.
if (!stream->AddTap(this)) {
REPORT_ERROR(ErrorManagement::InitialisationError,
"Stream '%s' cannot take another tap.", stream->GetStreamName());
mtx.FastLock();
src[idx].stream = NULL_PTR(TCPSServiceStream *);
mtx.FastUnLock();
return;
}
Evaluate();
}
void TCPStreamJoin::Evaluate() {
mtx.FastLock();
const bool start = !active && AllRegistered();
mtx.FastUnLock();
if (start) {
// Registering may call back into observers (including this one): no lock held.
const bool ok = out->Start();
mtx.FastLock();
if (ok) {
active = true;
outCounter = 0u;
PublishConfigLocked();
}
mtx.FastUnLock();
}
}
void TCPStreamJoin::OnStreamUnregistered(TCPSServiceStream *stream) {
mtx.FastLock();
const int32 idx = FindByStream(stream);
bool wasActive = false;
if (idx >= 0) {
Source &s = src[idx];
s.stream = NULL_PTR(TCPSServiceStream *);
s.configOk = false;
s.haveBody = false;
s.bodySize = 0u;
wasActive = active;
active = false;
configPublished = false;
}
mtx.FastUnLock();
if (idx < 0) {
return;
}
stream->RemoveTap(this);
if (wasActive) {
(void)out->Stop(); // subscribers of the merged stream are dropped
}
}
bool TCPStreamJoin::ParseConfig(Source &s, const uint8 *payload, uint32 n) {
bool ok = (n >= 5u);
uint32 numSigs = 0u;
if (ok) {
memcpy(&numSigs, payload, 4u);
const uint64 need = 4u + static_cast<uint64>(numSigs) * UDPS_SIGNAL_DESC_SIZE + 1u;
ok = (numSigs > 0u) && (need <= n);
}
if (ok) {
const uint32 off = 4u + numSigs * UDPS_SIGNAL_DESC_SIZE;
if (payload[off] == UDPS_PUBLISH_ACCUMULATE) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Source '%s' uses Accumulate publishing, which cannot be merged.",
s.name.Buffer());
ok = false;
}
else {
s.numSigs = numSigs;
s.hrt = 0u;
if (n >= (off + 1u + 8u)) {
memcpy(&s.hrt, &payload[off + 1u], 8u);
}
}
}
else {
REPORT_ERROR(ErrorManagement::ParametersError,
"Source '%s' sent a malformed CONFIG.", s.name.Buffer());
}
return ok;
}
void TCPStreamJoin::OnTapConfig(TCPSServiceStream *source, const uint8 *payload, uint32 payloadSize) {
mtx.FastLock();
const int32 idx = FindByStream(source);
if (idx >= 0) {
Source &s = src[idx];
s.haveBody = false;
s.bodySize = 0u;
configPublished = false;
sizeLogged = false;
s.configOk = ParseConfig(s, payload, payloadSize);
if (s.configOk) {
if (s.cfgBytes < payloadSize) {
if (s.cfg != NULL_PTR(uint8 *)) {
delete[] s.cfg;
}
s.cfg = new uint8[payloadSize];
}
memcpy(s.cfg, payload, payloadSize);
s.cfgBytes = payloadSize;
}
PublishConfigLocked();
}
mtx.FastUnLock();
}
/** Caller holds `mtx`. */
void TCPStreamJoin::PublishConfigLocked() {
configPublished = false;
bool ok = active;
uint64 totalSigs = 0u;
uint64 hrt = UDPS_HRT_FREQUENCY_UNKNOWN;
for (uint32 i = 0u; ok && (i < numSrc); i++) {
ok = src[i].configOk;
totalSigs += src[i].numSigs;
if (ok && (src[i].hrt != UDPS_HRT_FREQUENCY_UNKNOWN)) {
if ((hrt != UDPS_HRT_FREQUENCY_UNKNOWN) && (hrt != src[i].hrt)) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Join '%s': sources have different HRT frequencies, cannot merge.",
outName.Buffer());
ok = false;
}
hrt = src[i].hrt;
}
}
const uint64 cfgSize = 4u + totalSigs * UDPS_SIGNAL_DESC_SIZE + 1u + 8u;
if (ok && (cfgSize > maxPayload)) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Join '%s': merged CONFIG of %u bytes exceeds MaxPayloadSize.",
outName.Buffer(), static_cast<uint32>(cfgSize));
ok = false;
}
if (!ok) {
return;
}
uint8 *buf = new uint8[static_cast<uint32>(cfgSize)];
const uint32 nSigs = static_cast<uint32>(totalSigs);
memcpy(buf, &nSigs, 4u);
uint32 pos = 4u;
uint32 base = 0u;
for (uint32 i = 0u; ok && (i < numSrc); i++) {
const char8 *prefix = src[i].name.Buffer();
for (uint32 k = 0u; ok && (k < src[i].numSigs); k++) {
UDPSSignalDescriptor d;
memcpy(&d, &src[i].cfg[4u + k * UDPS_SIGNAL_DESC_SIZE], UDPS_SIGNAL_DESC_SIZE);
d.name[UDPS_MAX_SIGNAL_NAME - 1u] = '\0';
const uint32 len = static_cast<uint32>(strlen(prefix) + 1u + strlen(d.name));
if (len >= UDPS_MAX_SIGNAL_NAME) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Join '%s': signal name '%s_%s' is longer than %u characters.",
outName.Buffer(), prefix, d.name, UDPS_MAX_SIGNAL_NAME - 1u);
ok = false;
}
else {
char8 merged[UDPS_MAX_SIGNAL_NAME];
(void)snprintf(merged, sizeof(merged), "%s_%s", prefix, d.name);
memset(d.name, 0, sizeof(d.name));
memcpy(d.name, merged, strlen(merged));
if (d.timeSignalIdx != UDPS_NO_TIME_SIGNAL) {
d.timeSignalIdx += base;
}
memcpy(&buf[pos], &d, UDPS_SIGNAL_DESC_SIZE);
pos += UDPS_SIGNAL_DESC_SIZE;
}
}
base += src[i].numSigs;
}
if (ok) {
buf[pos] = UDPS_PUBLISH_STRICT;
pos += 1u;
memcpy(&buf[pos], &hrt, 8u);
pos += 8u;
ok = out->SendConfig(buf, pos);
}
configPublished = ok;
delete[] buf;
}
void TCPStreamJoin::OnTapData(TCPSServiceStream *source, uint32 counter, const uint8 *payload,
uint32 payloadSize) {
(void)counter;
mtx.FastLock();
const int32 idx = FindByStream(source);
if ((idx >= 0) && src[idx].configOk && (payloadSize >= 8u)) {
Source &s = src[idx];
const uint32 bl = payloadSize - 8u;
// A size change without a new CONFIG would corrupt the merged layout: ignore.
if (!s.haveBody || (s.bodySize == bl)) {
if (s.bodyCap < bl) {
if (s.body != NULL_PTR(uint8 *)) {
delete[] s.body;
}
s.body = new uint8[(bl > 0u) ? bl : 1u];
s.bodyCap = (bl > 0u) ? bl : 1u;
}
if (bl > 0u) {
memcpy(s.body, &payload[8], bl);
}
s.bodySize = bl;
s.haveBody = true;
if (active && configPublished && (static_cast<uint32>(idx) == master)) {
uint64 total = 8u;
bool ready = true;
for (uint32 i = 0u; i < numSrc; i++) {
ready = ready && src[i].haveBody;
total += src[i].bodySize;
}
if (ready && (total > maxPayload)) {
if (!sizeLogged) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Join '%s': merged frame of %u bytes exceeds MaxPayloadSize.",
outName.Buffer(), static_cast<uint32>(total));
sizeLogged = true;
}
ready = false;
}
if (ready) {
if (scratchCap < total) {
if (scratch != NULL_PTR(uint8 *)) {
delete[] scratch;
}
scratch = new uint8[static_cast<uint32>(total)];
scratchCap = static_cast<uint32>(total);
}
memcpy(scratch, payload, 8u); // master timestamp
uint32 pos = 8u;
for (uint32 i = 0u; i < numSrc; i++) {
if (src[i].bodySize > 0u) {
memcpy(&scratch[pos], src[i].body, src[i].bodySize);
}
pos += src[i].bodySize;
}
outCounter++;
if (out->SendData(outCounter, scratch, pos)) {
emitted = emitted + 1u;
}
}
}
}
}
mtx.FastUnLock();
}
CLASS_REGISTER(TCPStreamJoin, "1.0")
} /* namespace MARTe */
@@ -0,0 +1,139 @@
#ifndef TCPSTREAMJOIN_H_
#define TCPSTREAMJOIN_H_
/**
* @file TCPStreamJoin.h
* @brief Publishes one new stream of a TCPStreamService that merges several other
* streams of the same service.
*
* @code
* +Svc = { Class = TCPStreamService Port = 44500 }
* +Join = { Class = TCPStreamJoin Service = "Svc" StreamName = "all"
* Sources = "fast,slow" Master = "fast" }
* @endcode
* Declare the join after the service. Consumers subscribe to "all" like to any stream.
*
* The merged stream is emitted at the pace of the Master source: each Master DATA frame
* produces one merged frame holding the Master's signals and the last values received
* from every other source (sample-and-hold). Nothing is emitted until every source has
* delivered one DATA frame. No thread is added: the merged frame is built and queued on
* the Master producer's thread.
*
* @par CONFIG
* Concatenation of the source descriptors in Sources order, named
* "<stream>_<signal>" (at most 63 characters), time-signal indexes rebased, publish mode
* Strict. All sources must share the same HRT frequency (an unknown one matches any).
*
* @par DATA
* [master timestamp][source0 body][source1 body]... where a body is that source's last
* DATA payload without its 8-byte timestamp. A held value is therefore stamped with the
* Master's time unless the source carries its own time signal.
*
* @par Limits
* Only Strict and Decimate sources are accepted (Accumulate batches have varying
* length); a source whose frame size changes without a new CONFIG is ignored; the merged
* frame must fit MaxPayloadSize. The output stream is registered while every source is
* registered and removed as soon as one leaves; it is rebuilt when a source re-registers
* or changes its CONFIG.
*
* @par Parameters
* | Parameter | Type | Default | Description |
* |----------------|--------|-------------|-------------|
* | Service | string | (required) | Name of the TCPStreamService object. |
* | StreamName | string | object name | Name of the merged stream. |
* | Sources | string | (required) | Comma separated source stream names (1..16). |
* | Master | string | first source| Source whose frames pace the merged stream. |
* | MaxPayloadSize | uint32 | 60000 | Largest merged frame payload. |
*
* @par Locking
* Producer-side: source tapMutex, then the join mutex, then the output stream mutex, then
* the connection queue mutex. Service notifications run outside its topology lock and
* are serialised.
*/
#include "FastPollingMutexSem.h"
#include "Object.h"
#include "ReferenceT.h"
#include "StreamString.h"
#include "StructuredDataI.h"
#include "TCPSServiceStream.h"
#include "TCPSStreamTapI.h"
#include "TCPStreamService.h"
namespace MARTe {
class TCPStreamJoin : public Object, public TCPSStreamTapI, public TCPSStreamObserverI {
public:
CLASS_REGISTER_DECLARATION()
/** Most source streams one join can merge. */
static const uint32 TCPSJ_MAX_SOURCES = 16u;
TCPStreamJoin();
virtual ~TCPStreamJoin();
virtual bool Initialise(StructuredDataI &data);
virtual void OnTapConfig(TCPSServiceStream *source, const uint8 *payload, uint32 payloadSize);
virtual void OnTapData(TCPSServiceStream *source, uint32 counter, const uint8 *payload,
uint32 payloadSize);
virtual void OnStreamRegistered(TCPSServiceStream *stream);
virtual void OnStreamUnregistered(TCPSServiceStream *stream);
/** @return true while the merged stream is registered with the service. */
bool IsActive() const;
/** @return true once a merged CONFIG has been published for the current sources. */
bool HasConfig() const;
/** @return merged DATA frames emitted. */
uint64 GetFramesEmitted() const;
uint32 GetNumSources() const;
private:
struct Source {
Source();
~Source();
StreamString name;
TCPSServiceStream *stream; ///< non-NULL while registered and tapped
bool configOk;
uint8 *cfg;
uint32 cfgBytes;
uint32 numSigs;
uint64 hrt;
uint8 *body;
uint32 bodyCap;
uint32 bodySize;
bool haveBody;
};
int32 FindByName(const char8 *name) const;
int32 FindByStream(const TCPSServiceStream *s) const;
bool AllRegistered() const;
void Evaluate();
void PublishConfigLocked();
bool ParseConfig(Source &s, const uint8 *payload, uint32 n);
ReferenceT<TCPStreamService> service;
TCPSServiceStream *out;
bool observing;
StreamString outName;
Source *src;
uint32 numSrc;
uint32 master;
uint32 maxPayload;
FastPollingMutexSem mtx;
bool active;
bool configPublished;
bool sizeLogged;
uint32 outCounter;
volatile uint64 emitted;
uint8 *scratch;
uint32 scratchCap;
TCPStreamJoin(const TCPStreamJoin &);
TCPStreamJoin &operator=(const TCPStreamJoin &);
};
} // namespace MARTe
#endif // TCPSTREAMJOIN_H_
@@ -0,0 +1,502 @@
/**
* @file TCPStreamService.cpp
* @brief Source file for class TCPStreamService
* @date 06/11/2026
* @author Martino Ferrari
*
* @copyright Copyright 2015 F4E | European Joint Undertaking for ITER and
* the Development of Fusion Energy ('Fusion for Energy').
* Licensed under the EUPL, Version 1.1 or - as soon they will be approved
* by the European Commission - subsequent versions of the EUPL (the "Licence")
* You may not use this work except in compliance with the Licence.
* You may obtain a copy of the Licence at: http://ec.europa.eu/idabc/eupl
*
* @warning Unless required by applicable law or agreed to in writing,
* software distributed under the Licence is distributed on an "AS IS"
* basis, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
* or implied. See the Licence permissions and limitations under the Licence.
*/
#define DLL_API
#include "TCPStreamService.h"
#include "AdvancedErrorManagement.h"
#include "Atomic.h"
#include "HighResolutionTimer.h"
#include "TCPSConn.h"
#include "TCPSServiceStream.h"
#include "TCPSWorker.h"
#include <arpa/inet.h>
#include <errno.h>
#include <fcntl.h>
#include <netinet/in.h>
#include <netinet/tcp.h>
#include <poll.h>
#include <string.h>
#include <sys/socket.h>
#include <sys/types.h>
#include <unistd.h>
namespace MARTe {
static const int TCPS_ACCEPT_SLICE_MS = 50;
TCPStreamService::TCPStreamService()
: Object(), EmbeddedServiceMethodBinderI(), port(44500u), boundPort(0u),
numWorkers(2u), maxClients(64u), maxStreams(32u), queueDepth(8u),
stallTimeoutS(5u), handshakeTimeoutS(5u), sendBufferSize(0u),
cpuMask(0xFFFFFFFFu), stackSize(65536u), stallTicks(0u), handshakeTicks(0u),
listenFd(-1), acceptThread(*this), acceptorStarted(false),
workers(NULL_PTR(TCPSWorker **)), workersCreated(0u),
numObservers(0u),
streams(NULL_PTR(TCPSServiceStream **)), numStreams(0u),
connCount(0), evictions(0), rejected(0) {
(void)notifyMutex.Create(true);
for (uint32 i = 0u; i < TCPS_MAX_OBSERVERS; i++) {
observers[i] = NULL_PTR(TCPSStreamObserverI *);
}
}
TCPStreamService::~TCPStreamService() {
Shutdown();
}
void TCPStreamService::Shutdown() {
if (acceptorStarted) {
(void)acceptThread.Stop();
acceptorStarted = false;
}
for (uint32 i = 0u; i < workersCreated; i++) {
workers[i]->Stop();
}
if (listenFd >= 0) {
(void)close(listenFd);
listenFd = -1;
}
for (uint32 i = 0u; i < workersCreated; i++) {
delete workers[i];
}
workersCreated = 0u;
if (workers != NULL_PTR(TCPSWorker **)) {
delete[] workers;
workers = NULL_PTR(TCPSWorker **);
}
if (streams != NULL_PTR(TCPSServiceStream **)) {
delete[] streams;
streams = NULL_PTR(TCPSServiceStream **);
}
numStreams = 0u;
}
bool TCPStreamService::Initialise(StructuredDataI &data) {
bool ok = Object::Initialise(data);
port = 44500u;
(void)data.Read("Port", port);
if (port > 65535u) {
REPORT_ERROR(ErrorManagement::ParametersError, "Port %u out of range.", port);
ok = false;
}
numWorkers = 2u;
(void)data.Read("Workers", numWorkers);
if ((numWorkers == 0u) || (numWorkers > 32u)) {
REPORT_ERROR(ErrorManagement::ParametersError, "Workers %u must be in 1..32.", numWorkers);
ok = false;
}
maxClients = 64u;
(void)data.Read("MaxClients", maxClients);
if ((maxClients == 0u) || (maxClients > 1024u)) {
REPORT_ERROR(ErrorManagement::ParametersError, "MaxClients %u must be in 1..1024.", maxClients);
ok = false;
}
maxStreams = 32u;
(void)data.Read("MaxStreams", maxStreams);
if ((maxStreams == 0u) || (maxStreams > 256u)) {
REPORT_ERROR(ErrorManagement::ParametersError, "MaxStreams %u must be in 1..256.", maxStreams);
ok = false;
}
queueDepth = 8u;
(void)data.Read("ClientQueueDepth", queueDepth);
if ((queueDepth == 0u) || (queueDepth > 4096u)) {
REPORT_ERROR(ErrorManagement::ParametersError, "ClientQueueDepth %u must be in 1..4096.", queueDepth);
ok = false;
}
stallTimeoutS = 5u;
(void)data.Read("ClientStallTimeout", stallTimeoutS);
handshakeTimeoutS = 5u;
(void)data.Read("HandshakeTimeout", handshakeTimeoutS);
if (handshakeTimeoutS == 0u) {
REPORT_ERROR(ErrorManagement::ParametersError, "HandshakeTimeout must be at least 1 second.");
ok = false;
}
sendBufferSize = 0u;
(void)data.Read("SendBufferSize", sendBufferSize);
(void)data.Read("CPUMask", cpuMask);
(void)data.Read("StackSize", stackSize);
stallTicks = static_cast<uint64>(stallTimeoutS) * HighResolutionTimer::Frequency();
handshakeTicks = static_cast<uint64>(handshakeTimeoutS) * HighResolutionTimer::Frequency();
if (!ok) {
return false;
}
/* Listening socket. */
int fd = socket(AF_INET, SOCK_STREAM, 0);
ok = (fd >= 0);
if (!ok) {
REPORT_ERROR(ErrorManagement::FatalError, "socket() failed: %s.", strerror(errno));
}
if (ok) {
int one = 1;
(void)setsockopt(fd, SOL_SOCKET, SO_REUSEADDR, &one, sizeof(one));
struct sockaddr_in addr;
memset(&addr, 0, sizeof(addr));
addr.sin_family = AF_INET;
addr.sin_addr.s_addr = htonl(INADDR_ANY);
addr.sin_port = htons(static_cast<uint16>(port));
if (bind(fd, reinterpret_cast<struct sockaddr *>(&addr), sizeof(addr)) != 0) {
REPORT_ERROR(ErrorManagement::FatalError, "bind(%u) failed: %s.", port, strerror(errno));
ok = false;
}
}
if (ok && (listen(fd, 32) != 0)) {
REPORT_ERROR(ErrorManagement::FatalError, "listen() failed: %s.", strerror(errno));
ok = false;
}
if (ok) {
int flags = fcntl(fd, F_GETFL, 0);
ok = (flags >= 0) && (fcntl(fd, F_SETFL, flags | O_NONBLOCK) == 0);
}
if (ok) {
struct sockaddr_in addr;
socklen_t len = static_cast<socklen_t>(sizeof(addr));
memset(&addr, 0, sizeof(addr));
boundPort = static_cast<uint16>(port);
if (getsockname(fd, reinterpret_cast<struct sockaddr *>(&addr), &len) == 0) {
boundPort = ntohs(addr.sin_port);
}
}
if (!ok) {
if (fd >= 0) {
(void)close(fd);
}
return false;
}
listenFd = fd;
streams = new TCPSServiceStream *[maxStreams];
workers = new TCPSWorker *[numWorkers];
for (uint32 i = 0u; (i < numWorkers) && ok; i++) {
workers[i] = new TCPSWorker(*this, maxClients);
workersCreated = i + 1u;
ok = workers[i]->Start(cpuMask, stackSize);
if (!ok) {
REPORT_ERROR(ErrorManagement::FatalError, "Could not start worker %u.", i);
}
}
if (ok) {
acceptThread.SetCPUMask(cpuMask);
acceptThread.SetStackSize(stackSize);
ok = (acceptThread.Start() == ErrorManagement::NoError);
acceptorStarted = ok;
if (!ok) {
REPORT_ERROR(ErrorManagement::FatalError, "Could not start the acceptor thread.");
}
}
if (!ok) {
Shutdown();
}
return ok;
}
ErrorManagement::ErrorType TCPStreamService::Execute(ExecutionInfo &info) {
if (info.GetStage() != ExecutionInfo::MainStage) {
return ErrorManagement::NoError;
}
struct pollfd p;
p.fd = listenFd;
p.events = POLLIN;
p.revents = 0;
if (poll(&p, 1, TCPS_ACCEPT_SLICE_MS) <= 0) {
return ErrorManagement::NoError;
}
for (;;) {
int fd = accept(listenFd, NULL_PTR(struct sockaddr *), NULL_PTR(socklen_t *));
if (fd < 0) {
break;
}
if (static_cast<uint32>(connCount) >= maxClients) {
REPORT_ERROR(ErrorManagement::Warning,
"MaxClients (%u) reached; connection refused.", maxClients);
(void)close(fd);
continue;
}
int flags = fcntl(fd, F_GETFL, 0);
if ((flags < 0) || (fcntl(fd, F_SETFL, flags | O_NONBLOCK) != 0)) {
(void)close(fd);
continue;
}
int one = 1;
(void)setsockopt(fd, IPPROTO_TCP, TCP_NODELAY, &one, sizeof(one));
if (sendBufferSize > 0u) {
int sz = static_cast<int>(sendBufferSize);
(void)setsockopt(fd, SOL_SOCKET, SO_SNDBUF, &sz, sizeof(sz));
}
TCPSWorker *best = workers[0];
for (uint32 i = 1u; i < workersCreated; i++) {
if (workers[i]->Load() < best->Load()) {
best = workers[i];
}
}
TCPSConn *c = new TCPSConn(fd, best, queueDepth,
HighResolutionTimer::Counter() + handshakeTicks);
Atomic::Increment(&connCount);
if (!best->AddIncoming(c)) {
delete c;
Atomic::Decrement(&connCount);
}
}
return ErrorManagement::NoError;
}
uint16 TCPStreamService::GetBoundPort() const {
return boundPort;
}
uint32 TCPStreamService::GetClientCount() const {
uint32 n = 0u;
topology.FastLock();
for (uint32 i = 0u; i < numStreams; i++) {
n += streams[i]->GetClientCount();
}
topology.FastUnLock();
return n;
}
uint32 TCPStreamService::GetStreamCount() const {
return numStreams;
}
uint32 TCPStreamService::GetWorkerCount() const {
return workersCreated;
}
uint64 TCPStreamService::GetClientDrops() const {
uint64 n = 0u;
topology.FastLock();
for (uint32 i = 0u; i < numStreams; i++) {
n += streams[i]->GetClientDrops();
}
topology.FastUnLock();
return n;
}
uint32 TCPStreamService::GetStallEvictions() const {
return static_cast<uint32>(evictions);
}
uint32 TCPStreamService::GetRejectedSubscriptions() const {
return static_cast<uint32>(rejected);
}
bool TCPStreamService::RegisterStream(TCPSServiceStream *s) {
bool ok = true;
// Held across the registration so observers see (un)registrations in order.
(void)notifyMutex.Lock();
topology.FastLock();
if (numStreams >= maxStreams) {
REPORT_ERROR(ErrorManagement::ParametersError,
"Cannot register stream '%s': MaxStreams (%u) reached.",
s->GetStreamName(), maxStreams);
ok = false;
}
for (uint32 i = 0u; (i < numStreams) && ok; i++) {
if (strcmp(streams[i]->GetStreamName(), s->GetStreamName()) == 0) {
REPORT_ERROR(ErrorManagement::ParametersError,
"A stream named '%s' is already registered.", s->GetStreamName());
ok = false;
}
}
if (ok) {
streams[numStreams] = s;
numStreams++;
}
topology.FastUnLock();
if (ok) {
for (uint32 i = 0u; i < numObservers; i++) {
observers[i]->OnStreamRegistered(s);
}
}
(void)notifyMutex.UnLock();
return ok;
}
void TCPStreamService::UnregisterStream(TCPSServiceStream *s) {
(void)notifyMutex.Lock();
bool wasRegistered = false;
topology.FastLock();
for (uint32 i = 0u; i < numStreams; i++) {
if (streams[i] == s) {
streams[i] = streams[numStreams - 1u];
numStreams--;
wasRegistered = true;
break;
}
}
s->DropAllConns();
topology.FastUnLock();
if (wasRegistered) {
for (uint32 i = 0u; i < numObservers; i++) {
observers[i]->OnStreamUnregistered(s);
}
}
(void)notifyMutex.UnLock();
}
bool TCPStreamService::AddObserver(TCPSStreamObserverI *obs) {
bool ok = false;
(void)notifyMutex.Lock();
if (numObservers < TCPS_MAX_OBSERVERS) {
observers[numObservers] = obs;
numObservers++;
ok = true;
// Replay: streams cannot (un)register while notifyMutex is held.
topology.FastLock();
const uint32 n = numStreams;
TCPSServiceStream **snap = new TCPSServiceStream *[(n > 0u) ? n : 1u];
for (uint32 i = 0u; i < n; i++) {
snap[i] = streams[i];
}
topology.FastUnLock();
for (uint32 i = 0u; i < n; i++) {
obs->OnStreamRegistered(snap[i]);
}
delete[] snap;
}
(void)notifyMutex.UnLock();
return ok;
}
void TCPStreamService::RemoveObserver(TCPSStreamObserverI *obs) {
(void)notifyMutex.Lock();
for (uint32 i = 0u; i < numObservers; i++) {
if (observers[i] == obs) {
observers[i] = observers[numObservers - 1u];
numObservers--;
break;
}
}
(void)notifyMutex.UnLock();
}
bool TCPStreamService::Attach(TCPSConn *c, char8 *streamList) {
TCPSServiceStream *found[TCPS_MAX_CONN_STREAMS];
uint32 n = 0u;
bool ok = true;
topology.FastLock();
char8 *p = streamList;
while (ok) {
char8 *comma = strchr(p, ',');
if (comma != NULL_PTR(char8 *)) {
*comma = '\0';
}
const uint32 len = static_cast<uint32>(strlen(p));
TCPSServiceStream *match = NULL_PTR(TCPSServiceStream *);
if ((len == 0u) || (len > TCPS_MAX_STREAM_NAME) || (n >= TCPS_MAX_CONN_STREAMS)) {
ok = false;
}
for (uint32 i = 0u; ok && (i < numStreams) && (match == NULL_PTR(TCPSServiceStream *)); i++) {
if (strcmp(streams[i]->GetStreamName(), p) == 0) {
match = streams[i];
}
}
for (uint32 i = 0u; ok && (i < n); i++) {
if (found[i] == match) {
ok = false; // the same stream listed twice
}
}
if (ok && (match == NULL_PTR(TCPSServiceStream *))) {
ok = false;
}
if (ok) {
found[n] = match;
n++;
if (comma == NULL_PTR(char8 *)) {
break;
}
p = comma + 1;
}
}
if (ok) {
c->qMutex.FastLock();
c->q.Reserve(n);
c->qMutex.FastUnLock();
uint32 attached = 0u;
for (uint32 i = 0u; ok && (i < n); i++) {
ok = found[i]->AttachConn(c, static_cast<uint16>(i));
if (ok) {
attached++;
}
}
if (!ok) {
for (uint32 i = 0u; i < attached; i++) {
found[i]->DetachConn(c);
}
} else {
for (uint32 i = 0u; i < n; i++) {
c->streams[i] = found[i];
}
c->numStreams = n;
}
}
topology.FastUnLock();
return ok;
}
void TCPStreamService::Detach(TCPSConn *c) {
topology.FastLock();
for (uint32 i = 0u; i < c->numStreams; i++) {
if (c->streams[i] != NULL_PTR(TCPSServiceStream *)) {
c->streams[i]->DetachConn(c);
c->streams[i] = NULL_PTR(TCPSServiceStream *);
}
}
topology.FastUnLock();
}
void TCPStreamService::ConnClosed() {
Atomic::Decrement(&connCount);
}
void TCPStreamService::NoteEviction() {
Atomic::Increment(&evictions);
}
void TCPStreamService::NoteRejected() {
Atomic::Increment(&rejected);
}
uint32 TCPStreamService::QueueDepth() const {
return queueDepth;
}
uint64 TCPStreamService::StallTicks() const {
return stallTicks;
}
uint64 TCPStreamService::HandshakeTicks() const {
return handshakeTicks;
}
uint32 TCPStreamService::MaxClients() const {
return maxClients;
}
CLASS_REGISTER(TCPStreamService, "1.0")
} // namespace MARTe
@@ -0,0 +1,174 @@
#ifndef TCPSTREAMSERVICE_H_
#define TCPSTREAMSERVICE_H_
/**
* @file TCPStreamService.h
* @brief One in-process TCP streaming server shared by any number of
* TCPStreamer DataSources, served by a pool of worker threads.
*
* @details Declared once, at the root of the configuration:
* <pre>
* +StreamService = {
* Class = TCPStreamService
* Port = 44500
* Workers = 2
* }
* </pre>
* and referenced from any number of DataSources:
* <pre>
* +Fast = { Class = TCPStreamer Service = StreamService StreamName = Fast ... }
* +Slow = { Class = TCPStreamer Service = StreamService StreamName = Slow ... }
* </pre>
*
* Wire protocol: plain UDPS framing over TCP, exactly like TCPSServer, plus one
* client-to-server frame. Right after connecting, a client sends a SUBSCRIBE
* frame (UDPS_TYPE_SUBSCRIBE, payload = stream name, 1..255 bytes). The service
* then sends that stream's CONFIG followed by its DATA frames. One connection =
* one stream. A connection that does not subscribe within HandshakeTimeout
* seconds, or that names an unknown stream, is closed (clients retry).
*
* Threads: one acceptor plus `Workers` I/O threads. A connection lives on one
* worker. Producer threads never touch sockets: they copy each frame into every
* subscriber's bounded queue and poke the owning worker through a self-pipe, so
* a slow client only loses its own frames and never delays a producer or
* another client.
*
* @par Parameters (all optional)
* | Parameter | Type | Default | Description |
* |--------------------|--------|---------|-------------|
* | Port | uint32 | 44500 | TCP listen port; 0 = ephemeral (see GetBoundPort()). |
* | Workers | uint32 | 2 | I/O threads (1..32). |
* | MaxClients | uint32 | 64 | Simultaneous connections (1..1024). |
* | MaxStreams | uint32 | 32 | Registered streams (1..256). |
* | ClientQueueDepth | uint32 | 8 | DATA frames queued per client (1..4096). |
* | ClientStallTimeout | uint32 | 5 | Seconds without progress before eviction; 0 disables. |
* | HandshakeTimeout | uint32 | 5 | Seconds allowed to send SUBSCRIBE. |
* | SendBufferSize | uint32 | 0 | SO_SNDBUF for client sockets; 0 keeps the OS default. |
* | CPUMask | uint32 | 0xFFFFFFFF | Affinity of the service threads. |
* | StackSize | uint32 | 65536 | Stack of the service threads. |
*/
#include "EmbeddedServiceMethodBinderI.h"
#include "ExecutionInfo.h"
#include "FastPollingMutexSem.h"
#include "MutexSem.h"
#include "Object.h"
#include "SingleThreadService.h"
#include "StructuredDataI.h"
#include "TCPSStreamTapI.h"
#include "UDPSProtocol.h"
namespace MARTe {
class TCPSWorker;
class TCPSServiceStream;
struct TCPSConn;
/** Longest stream name accepted in a SUBSCRIBE frame. */
static const uint32 TCPS_MAX_STREAM_NAME = 255u;
/** Most streams one connection may multiplex. */
static const uint32 TCPS_MAX_CONN_STREAMS = UDPS_TCP_MAX_STREAMS;
/** Longest SUBSCRIBE payload: a comma separated list of stream names. */
static const uint32 TCPS_MAX_SUBSCRIBE_PAYLOAD = UDPS_TCP_MAX_SUBSCRIBE_PAYLOAD;
class TCPStreamService : public Object, public EmbeddedServiceMethodBinderI {
public:
CLASS_REGISTER_DECLARATION()
TCPStreamService();
virtual ~TCPStreamService();
/** Reads the parameters, opens the listening socket and starts the threads. */
virtual bool Initialise(StructuredDataI &data);
/** Acceptor thread entry point; do not call directly. */
virtual ErrorManagement::ErrorType Execute(ExecutionInfo &info);
/** @return the port actually bound. */
uint16 GetBoundPort() const;
/** @return subscribed connections across all streams. */
uint32 GetClientCount() const;
uint32 GetStreamCount() const;
uint32 GetWorkerCount() const;
/** @return DATA frames dropped for slow clients, summed over registered streams. */
uint64 GetClientDrops() const;
/** @return connections closed by the stall timeout (all time). */
uint32 GetStallEvictions() const;
/** @return connections closed for a bad / unknown SUBSCRIBE (all time). */
uint32 GetRejectedSubscriptions() const;
/* ---- stream side ---- */
/** @return false if a stream with this name is already registered or the table is full. */
bool RegisterStream(TCPSServiceStream *s);
/** Remove the stream and make its subscribers close. */
void UnregisterStream(TCPSServiceStream *s);
/**
* Be told when streams register / unregister. The streams already registered are
* replayed to the observer before AddObserver returns. Notifications are serialised
* (and may nest on one thread), they never run under the topology lock, and once
* RemoveObserver returns no callback is running or will start.
* @return false if the observer table is full.
*/
bool AddObserver(TCPSStreamObserverI *obs);
void RemoveObserver(TCPSStreamObserverI *obs);
/* ---- worker side (internal) ---- */
/**
* Bind a connection to the streams named in @p streamList (comma separated,
* modified in place). The position in the list is the stream index stamped
* on every frame. All-or-nothing: @return false if any name is unknown,
* duplicated or malformed.
*/
bool Attach(TCPSConn *c, char8 *streamList);
void Detach(TCPSConn *c);
void ConnClosed();
void NoteEviction();
void NoteRejected();
uint32 QueueDepth() const;
uint64 StallTicks() const;
uint64 HandshakeTicks() const;
/** Max subscribers a stream may hold. */
uint32 MaxClients() const;
private:
void Shutdown();
uint32 port;
uint16 boundPort;
uint32 numWorkers;
uint32 maxClients;
uint32 maxStreams;
uint32 queueDepth;
uint32 stallTimeoutS;
uint32 handshakeTimeoutS;
uint32 sendBufferSize;
uint32 cpuMask;
uint32 stackSize;
uint64 stallTicks;
uint64 handshakeTicks;
int listenFd;
SingleThreadService acceptThread;
bool acceptorStarted;
TCPSWorker **workers;
uint32 workersCreated;
/** Most observers (TCPStreamJoin objects) one service can feed. */
static const uint32 TCPS_MAX_OBSERVERS = 16u;
MutexSem notifyMutex; ///< recursive; serialises observer calls with (un)registration
TCPSStreamObserverI *observers[TCPS_MAX_OBSERVERS];
uint32 numObservers;
mutable FastPollingMutexSem topology; ///< guards streams[] and every TCPSConn::stream
TCPSServiceStream **streams;
uint32 numStreams;
volatile int32 connCount;
volatile int32 evictions;
volatile int32 rejected;
};
} // namespace MARTe
#endif // TCPSTREAMSERVICE_H_
@@ -0,0 +1,353 @@
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../../../..//Build/x86-linux/Components/Interfaces/TCPStreamService/TCPSServiceStream.o: TCPSServiceStream.cpp TCPSServiceStream.h \
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TCPStreamService.h \
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../../../..//Common/UDP/UDPSProtocol.h \
../../../..//Source/Components/Interfaces/UDPStream/UDPSTransportI.h \
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TCPSConn.h TCPSFrameQueue.h TCPSWorker.h
../../../..//Build/x86-linux/Components/Interfaces/TCPStreamService/TCPStreamService.o: TCPStreamService.cpp TCPStreamService.h \
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TCPSConn.h TCPSFrameQueue.h TCPStreamService.h \
../../../..//Common/UDP/UDPSProtocol.h
@@ -0,0 +1,353 @@
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/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Iterator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListable.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/SortFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/SearchFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/LoadableLibrary.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectBuilder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StringHelper.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/StructuredDataI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/AnyType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GlobalObjectsDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GlobalObjectI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/StandardHeap.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../HeapI.h \
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/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StaticList.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StaticListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Matrix.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Vector.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/MemoryOperationsHelper.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/CLASSREGISTER.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryItemT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectBuilderT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamString.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/CharBuffer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/BufferedStreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeoutType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/AnyType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/FormatDescriptor.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/IOBuffer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamStringIOBuffer.h \
TCPStreamService.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/ExecutionInfo.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L1Portability/Threads.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ThreadsB.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L1Portability/ExceptionHandler.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ProcessorType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitSet.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/ExecutionInfo.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Object.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/SingleThreadService.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderT.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedThreadI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainerFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainerNode.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/StructuredDataI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedThread.h \
../../../..//Common/UDP/UDPSProtocol.h \
../../../..//Source/Components/Interfaces/UDPStream/UDPSTransportI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/AdvancedErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassProperties.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamMemoryReference.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectRegistryDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceT.h \
TCPSConn.h TCPSFrameQueue.h TCPSWorker.h
TCPStreamService.o: TCPStreamService.cpp TCPStreamService.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/ErrorType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/CompilerTypes.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Architecture/x86_gcc/CompilerTypes.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitBoolean.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/TemplateParametersVerificator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitRange.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/TypeCharacteristics.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/ExecutionInfo.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitRange.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitBoolean.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L1Portability/Threads.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ThreadsB.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/TypeCharacteristics.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L1Portability/ExceptionHandler.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/CompilerTypes.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ProcessorType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitSet.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/ExecutionInfo.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/FastPollingMutexSem.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Atomic.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Architecture/x86_gcc/AtomicA.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorInformation.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeoutType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HighResolutionTimer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeStamp.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Architecture/x86_gcc/HighResolutionTimerA.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/HighResolutionTimer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../HighResolutionTimer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/HighResolutionTimerCalibrator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeStamp.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Sleep.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Object.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HeapI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HeapManager.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HeapI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassProperties.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/FractionalInteger.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryItem.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/CString.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/ZeroTerminatedArray.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Introspection.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/IntrospectionEntry.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TypeDescriptor.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BasicType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/FractionalInteger.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/ZeroTerminatedArray.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListable.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolderT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/IteratorT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Iterator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListable.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/SortFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/SearchFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/LoadableLibrary.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectBuilder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StringHelper.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/StructuredDataI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/AnyType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GlobalObjectsDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GlobalObjectI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/StandardHeap.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../HeapI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../Generic/StandardHeap_Generic.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StaticList.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StaticListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Matrix.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Vector.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/MemoryOperationsHelper.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/CLASSREGISTER.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryItemT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectBuilderT.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/SingleThreadService.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderT.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedThreadI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Object.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Reference.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainerFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainerNode.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeoutType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/StructuredDataI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedThread.h \
../../../..//Common/UDP/UDPSProtocol.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/AdvancedErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassProperties.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamMemoryReference.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/BufferedStreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/AnyType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/FormatDescriptor.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/IOBuffer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/CharBuffer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Atomic.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HighResolutionTimer.h \
TCPSConn.h TCPSFrameQueue.h TCPSServiceStream.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamString.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamStringIOBuffer.h \
../../../..//Source/Components/Interfaces/UDPStream/UDPSTransportI.h \
TCPSWorker.h
TCPSWorker.o: TCPSWorker.cpp TCPSWorker.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/ErrorType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/CompilerTypes.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Architecture/x86_gcc/CompilerTypes.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitBoolean.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/TemplateParametersVerificator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitRange.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/TypeCharacteristics.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/ExecutionInfo.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitRange.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitBoolean.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L1Portability/Threads.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ThreadsB.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/TypeCharacteristics.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L1Portability/ExceptionHandler.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/CompilerTypes.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ProcessorType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BitSet.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/ExecutionInfo.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/FastPollingMutexSem.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Atomic.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Architecture/x86_gcc/AtomicA.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorInformation.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeoutType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HighResolutionTimer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeStamp.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Architecture/x86_gcc/HighResolutionTimerA.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/HighResolutionTimer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../HighResolutionTimer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/HighResolutionTimerCalibrator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../GeneralDefinitions.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeStamp.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Sleep.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/SingleThreadService.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedServiceMethodBinderT.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedThreadI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Object.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HeapI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HeapManager.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HeapI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassProperties.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/FractionalInteger.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryItem.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/CString.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/ZeroTerminatedArray.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Introspection.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/IntrospectionEntry.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TypeDescriptor.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/BasicType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/FractionalInteger.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/ZeroTerminatedArray.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListable.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolderT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/IteratorT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Iterator.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListable.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/SortFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/SearchFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/LoadableLibrary.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectBuilder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StringHelper.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/StructuredDataI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/AnyType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GlobalObjectsDatabase.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/GlobalObjectI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/StandardHeap.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../../HeapI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Environment/Linux/../Generic/StandardHeap_Generic.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StaticList.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StaticListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Matrix.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/Vector.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/MemoryOperationsHelper.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/CLASSREGISTER.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassRegistryItemT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ObjectBuilderT.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L0Types/LinkedListHolder.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Object.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/Reference.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainerFilter.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ReferenceContainerNode.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/TimeoutType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/StructuredDataI.h \
/home/martino/workspace/MARTe2/Source/Core/Scheduler/L3Services/EmbeddedThread.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/AdvancedErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/ClassProperties.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/ErrorManagement.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/StreamMemoryReference.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/BufferedStreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L2Objects/AnyType.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/FormatDescriptor.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/IOBuffer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L3Streams/CharBuffer.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/StreamI.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/Atomic.h \
/home/martino/workspace/MARTe2/Source/Core/BareMetal/L1Portability/HighResolutionTimer.h \
TCPSConn.h TCPSFrameQueue.h TCPStreamService.h \
../../../..//Common/UDP/UDPSProtocol.h