From c4c08d4da529feee37dbf0b6e02719561f7da1a5 Mon Sep 17 00:00:00 2001
From: Bert Hubert <bert.hubert@netherlabs.nl>
Date: Wed, 19 Apr 2006 06:52:30 +0000
Subject: [PATCH] first shot at solaris completion ports multiplexer - wrote it
 on linux so it won't work yet

git-svn-id: svn://svn.powerdns.com/pdns/trunk/pdns@734 d19b8d6e-7fed-0310-83ef-9ca221ded41b
---
 pdns/epollmplexer.cc |   3 -
 pdns/portsmplexer.cc | 153 +++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 153 insertions(+), 3 deletions(-)
 create mode 100644 pdns/portsmplexer.cc

diff --git a/pdns/epollmplexer.cc b/pdns/epollmplexer.cc
index 608d7d8ce..d1cbcb72f 100644
--- a/pdns/epollmplexer.cc
+++ b/pdns/epollmplexer.cc
@@ -12,9 +12,6 @@
 using namespace boost;
 using namespace std;
 
-#include <sys/epoll.h>
-
-
 class EpollFDMultiplexer : public FDMultiplexer
 {
 public:
diff --git a/pdns/portsmplexer.cc b/pdns/portsmplexer.cc
new file mode 100644
index 000000000..68628c171
--- /dev/null
+++ b/pdns/portsmplexer.cc
@@ -0,0 +1,153 @@
+#include "mplexer.hh"
+#include "sstuff.hh"
+#include <iostream>
+#include <unistd.h>
+#include "misc.hh"
+#include <boost/lexical_cast.hpp>
+#include "syncres.hh"
+#include <sys/port_impl.h>
+using namespace boost;
+using namespace std;
+
+
+class PortsFDMultiplexer : public FDMultiplexer
+{
+public:
+  PortsFDMultiplexer();
+  virtual ~PortsFDMultiplexer()
+  {
+    port_close(d_portfd);
+  }
+
+  virtual int run(struct timeval* tv);
+
+  virtual void addFD(callbackmap_t& cbmap, int fd, callbackfunc_t toDo, const boost::any& parameter);
+  virtual void removeFD(callbackmap_t& cbmap, int fd);
+  string getName()
+  {
+    return "solaris completion ports";
+  }
+private:
+  int d_portfd;
+  boost::shared_array<port_event_t> d_pevents;
+  static int s_maxevents; // not a hard maximum
+};
+
+
+static FDMultiplexer* makePorts()
+{
+  return new PortsFDMultiplexer();
+}
+
+static struct PortsRegisterOurselves
+{
+  PortsRegisterOurselves() {
+    FDMultiplexer::getMultiplexerMap().insert(make_pair(0, &makePorts)); // priority 0!
+  }
+} doItPorts;
+
+
+int PortsFDMultiplexer::s_maxevents=1024;
+PortsFDMultiplexer::PortsFDMultiplexer() : d_pevents(new port_event_t[s_maxevents])
+{
+  d_portfd=port_create(); // not hard max
+  if(d_portfd < 0)
+    throw FDMultiplexerException("Setting up port: "+stringerror());
+}
+
+void PortsFDMultiplexer::addFD(callbackmap_t& cbmap, int fd, callbackfunc_t toDo, const boost::any& parameter)
+{
+  accountingAddFD(cbmap, fd, toDo, parameter);
+
+  if(port_associate(port, PORT_SOURCE_FD, fd, (&cbmap == &d_readCallbacks) ? POLLIN : POLLOUT, 0) < 0) {
+    cbmap.erase(fd);
+    throw FDMultiplexerException("Adding fd to port set: "+stringerror());
+  }
+}
+
+void PortsFDMultiplexer::removeFD(callbackmap_t& cbmap, int fd)
+{
+  if(!cbmap.erase(fd))
+    throw FDMultiplexerException("Tried to remove unlisted fd "+lexical_cast<string>(fd)+ " from multiplexer");
+
+  if(port_dissociate(port, PORT_SOURCE_FD, fd) < 0)
+    throw FDMultiplexerException("Removing fd from port set: "+stringerror());
+}
+
+int PortsFDMultiplexer::run(struct timeval* now)
+{
+  if(d_inrun) {
+    throw FDMultiplexerException("FDMultiplexer::run() is not reentrant!\n");
+  }
+  
+  struct timeval tv;
+  tv.tv_sec=0; tv.tv_usec=500000;
+  int numevents=0;
+  int ret= port_getn(d_portfd, d_pevents, min(PORT_MAX_LIST, s_maxevents), &numevents, &timeout);
+
+  gettimeofday(now,0);
+  
+  if(ret < 0 && errno!=EINTR)
+    throw FDMultiplexerException("completion port_getn returned error: "+stringerror());
+
+  if(ret==0) // nothing
+    return 0;
+
+  d_inrun=true;
+
+  for(int n=0; n < numevents; ++n) {
+    d_iter=d_readCallbacks.find(d_portevents[n].portev_object);
+    
+    if(d_iter != d_readCallbacks.end()) {
+      d_iter->second.d_callback(d_iter->first, d_iter->second.d_parameter);
+      result = port_associate(d_portfd, PORT_SOURCE_FD, d_portevents[n].portev_object, 
+			      POLLIN, d_pevents[n].portev_user);
+    }
+
+    d_iter=d_writeCallbacks.find(d_pevents[n].data.fd);
+    
+    if(d_iter != d_writeCallbacks.end()) {
+      d_iter->second.d_callback(d_iter->first, d_iter->second.d_parameter);
+      result = port_associate(d_portfd, PORT_SOURCE_FD, d_portevents[n].portev_object, 
+			      POLLOUT, d_pevents[n].portev_user);
+    }
+    
+
+  }
+
+  d_inrun=false;
+  return 0;
+}
+
+#if 0
+void acceptData(int fd, boost::any& parameter)
+{
+  cout<<"Have data on fd "<<fd<<endl;
+  Socket* sock=boost::any_cast<Socket*>(parameter);
+  string packet;
+  IPEndpoint rem;
+  sock->recvFrom(packet, rem);
+  cout<<"Received "<<packet.size()<<" bytes!\n";
+}
+
+
+int main()
+{
+  Socket s(InterNetwork, Datagram);
+  
+  IPEndpoint loc("0.0.0.0", 2000);
+  s.bind(loc);
+
+  PortsFDMultiplexer sfm;
+
+  sfm.addReadFD(s.getHandle(), &acceptData, &s);
+
+  for(int n=0; n < 100 ; ++n) {
+    sfm.run();
+  }
+  sfm.removeReadFD(s.getHandle());
+  sfm.removeReadFD(s.getHandle());
+}
+#endif
+
+
-- 
2.40.0