From 2bba7d602744ccd6dab26940661f0fdfbf231af8 Mon Sep 17 00:00:00 2001
From: "Matthias P. Braendli" <matthias.braendli@mpb.li>
Date: Sun, 25 Dec 2016 21:34:03 +0100
Subject: Refactor flowgraph and puncturing rules

---
 src/Flowgraph.cpp | 129 ++++++++++++++++++++++++++++++++++++------------------
 1 file changed, 86 insertions(+), 43 deletions(-)

(limited to 'src/Flowgraph.cpp')

diff --git a/src/Flowgraph.cpp b/src/Flowgraph.cpp
index c199945..0eb1c60 100644
--- a/src/Flowgraph.cpp
+++ b/src/Flowgraph.cpp
@@ -2,7 +2,7 @@
    Copyright (C) 2005, 2006, 2007, 2008, 2009, 2010, 2011 Her Majesty
    the Queen in Right of Canada (Communications Research Center Canada)
 
-   Copyright (C) 2015
+   Copyright (C) 2016
    Matthias P. Braendli, matthias.braendli@mpb.li
 
     http://opendigitalradio.org
@@ -27,6 +27,7 @@
 #include "Flowgraph.h"
 #include "PcDebug.h"
 #include <memory>
+#include <algorithm>
 
 #if HAVE_DECL__MM_MALLOC
 #   include <mm_malloc.h>
@@ -36,17 +37,12 @@
 #include <sys/types.h>
 #include <stdexcept>
 #include <assert.h>
-#if defined(_WIN32) and !defined(__MINGW32__)
-//#include <sys/timeb.h>
-//#include <sys/types.h>
-#else
 #include <sys/time.h>
-#endif
 
 using namespace std;
 
-typedef std::vector<shared_ptr<Node> >::iterator NodeIterator;
-typedef std::vector<shared_ptr<Edge> >::iterator EdgeIterator;
+using NodeIterator = std::vector<shared_ptr<Node> >::iterator;
+using EdgeIterator = std::vector<shared_ptr<Edge> >::iterator;
 
 
 Node::Node(shared_ptr<ModPlugin> plugin) :
@@ -55,10 +51,8 @@ Node::Node(shared_ptr<ModPlugin> plugin) :
 {
     PDEBUG("Node::Node(plugin(%s): %p) @ %p\n",
             plugin->name(), plugin.get(), this);
-
 }
 
-
 Node::~Node()
 {
     PDEBUG("Node::~Node() @ %p\n", this);
@@ -67,6 +61,55 @@ Node::~Node()
     assert(myOutputBuffers.size() == 0);
 }
 
+void Node::addOutputBuffer(Buffer::sptr& buffer)
+{
+    myOutputBuffers.push_back(buffer);
+#if DEBUG
+    std::string fname = string(myPlugin->name()) +
+        "-" + to_string(myDebugFiles.size()) +
+        "-" + to_string((size_t)(void*)myPlugin.get()) +
+        ".dat";
+    FILE* fd = fopen(fname.c_str(), "wb");
+    assert(fd != nullptr);
+    myDebugFiles.push_back(fd);
+#endif
+}
+
+void Node::removeOutputBuffer(Buffer::sptr& buffer)
+{
+    auto it = std::find(
+            myOutputBuffers.begin(),
+            myOutputBuffers.end(),
+            buffer);
+    if (it != myOutputBuffers.end()) {
+#if DEBUG
+        size_t pos = std::distance(myOutputBuffers.begin(),
+                it);
+
+        auto fd_it = std::next(myDebugFiles.begin(), pos);
+
+        fclose(*fd_it);
+        myDebugFiles.erase(fd_it);
+#endif
+        myOutputBuffers.erase(it);
+    }
+}
+
+void Node::addInputBuffer(Buffer::sptr& buffer)
+{
+    myInputBuffers.push_back(buffer);
+}
+
+void Node::removeInputBuffer(Buffer::sptr& buffer)
+{
+    auto it = std::find(
+            myInputBuffers.begin(),
+            myInputBuffers.end(),
+            buffer);
+    if (it != myInputBuffers.end()) {
+        myInputBuffers.erase(it);
+    }
+}
 
 Edge::Edge(shared_ptr<Node>& srcNode, shared_ptr<Node>& dstNode) :
     mySrcNode(srcNode),
@@ -78,8 +121,8 @@ Edge::Edge(shared_ptr<Node>& srcNode, shared_ptr<Node>& dstNode) :
             this);
 
     myBuffer = make_shared<Buffer>();
-    srcNode->myOutputBuffers.push_back(myBuffer);
-    dstNode->myInputBuffers.push_back(myBuffer);
+    srcNode->addOutputBuffer(myBuffer);
+    dstNode->addInputBuffer(myBuffer);
 }
 
 
@@ -87,52 +130,52 @@ Edge::~Edge()
 {
     PDEBUG("Edge::~Edge() @ %p\n", this);
 
-    std::vector<shared_ptr<Buffer> >::iterator buffer;
-    if (myBuffer != NULL) {
-        for (buffer = mySrcNode->myOutputBuffers.begin();
-                buffer != mySrcNode->myOutputBuffers.end();
-                ++buffer) {
-            if (*buffer == myBuffer) {
-                mySrcNode->myOutputBuffers.erase(buffer);
-                break;
-            }
-        }
-
-        for (buffer = myDstNode->myInputBuffers.begin();
-                buffer != myDstNode->myInputBuffers.end();
-                ++buffer) {
-            if (*buffer == myBuffer) {
-                myDstNode->myInputBuffers.erase(buffer);
-                break;
-            }
-        }
+    if (myBuffer) {
+        mySrcNode->removeOutputBuffer(myBuffer);
+        myDstNode->removeInputBuffer(myBuffer);
     }
 }
 
 
 int Node::process()
 {
-    PDEBUG("Edge::process()\n");
+    PDEBUG("Node::process()\n");
     PDEBUG(" Plugin name: %s (%p)\n", myPlugin->name(), myPlugin.get());
 
-    // the plugin process() still wants vector<Buffer*>
+    // the plugin process() wants vector<Buffer*>
     // arguments.
     std::vector<Buffer*> inBuffers;
-    std::vector<shared_ptr<Buffer> >::iterator buffer;
-    for (buffer = myInputBuffers.begin();
-         buffer != myInputBuffers.end();
-         ++buffer) {
-        inBuffers.push_back(buffer->get());
+    for (auto& buffer : myInputBuffers) {
+        assert(buffer.get() != nullptr);
+        inBuffers.push_back(buffer.get());
     }
 
     std::vector<Buffer*> outBuffers;
-    for (buffer = myOutputBuffers.begin();
-         buffer != myOutputBuffers.end();
-         ++buffer) {
-        outBuffers.push_back(buffer->get());
+    for (auto& buffer : myOutputBuffers) {
+        assert(buffer.get() != nullptr);
+        outBuffers.push_back(buffer.get());
     }
 
-    return myPlugin->process(inBuffers, outBuffers);
+    int ret = myPlugin->process(inBuffers, outBuffers);
+#if DEBUG
+    assert(myDebugFiles.size() == myOutputBuffers.size());
+
+    auto buf   = myOutputBuffers.begin();
+    auto fd_it = myDebugFiles.begin();
+
+    for (size_t i = 0; i < myDebugFiles.size(); i++) {
+        if (*buf) {
+            Buffer& b = *buf->get();
+            FILE* fd = *fd_it;
+
+            fwrite(b.getData(), b.getLength(), 1, fd);
+        }
+
+        ++buf;
+        ++fd_it;
+    }
+#endif
+    return ret;
 }
 
 
-- 
cgit v1.2.3