Merge branch 'pan/otp_8332_halfword' into dev

* pan/otp_8332_halfword:
  Teach testcase in driver_suite the new prototype for driver_async
  wx: Correct usage of driver callbacks from wx thread
  Adopt the new (R13B04) Nif functionality to the halfword codebase
  Support monitoring and demonitoring from driver threads
  Fix further test-suite problems
  Correct the VM to work for more test suites
  Teach {wordsize,internal|external} to system_info/1
  Make tracing and distribution work
  Turn on instruction packing in the loader and virtual machine
  Add the BeamInstr data type for loaded BEAM code
  Fix the BEAM dissambler for the half-word emulator
  Store pointers to heap data in 32-bit words
  Add a custom mmap wrapper to force heaps into the lower address range
  Fit all heap data into the 32-bit address range

4 files changed, 34 insertions, 21 deletions

diff --git a/lib/wx/c_src/wxe_driver.c b/lib/wx/c_src/wxe_driver.c
index 3b951bec57..310325ea26 100644
--- a/lib/wx/c_src/wxe_driver.c
+++ b/lib/wx/c_src/wxe_driver.c
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2008-2010. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd% 
  */
 
@@ -113,6 +113,7 @@ wxe_driver_start(ErlDrvPort port, char *buff)
       data->driver_data = NULL;
       data->bin = NULL; 
       data->port = port;
+      data->pdl = driver_pdl_create(port);
       if(WXE_DRV_PORT == 0) {
 	 for(; *buff != 32; buff++); 
 	 buff++; 
@@ -124,7 +125,7 @@ wxe_driver_start(ErlDrvPort port, char *buff)
 	 if(!(start_native_gui(data) == 1))
 	    return(ERL_DRV_ERROR_GENERAL);  /* ENOMEM */
       } else {
-	 meta_command(CREATE_PORT,data);
+	  meta_command(CREATE_PORT,data);
       }
       return (ErlDrvData) data;	 
    }
diff --git a/lib/wx/c_src/wxe_driver.h b/lib/wx/c_src/wxe_driver.h
index 8437b4eb36..13a17e356f 100644
--- a/lib/wx/c_src/wxe_driver.h
+++ b/lib/wx/c_src/wxe_driver.h
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2008-2010. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd% 
  */
 
@@ -45,6 +45,7 @@ typedef struct wxe_data_def {
    WXEBinRef * bin;		/* Argument binaries */
    ErlDrvPort port;
    int is_cbport;
+   ErlDrvPDL pdl;
 } wxe_data;
 
 
diff --git a/lib/wx/c_src/wxe_impl.cpp b/lib/wx/c_src/wxe_impl.cpp
index 4486dff63b..528a08e654 100644
--- a/lib/wx/c_src/wxe_impl.cpp
+++ b/lib/wx/c_src/wxe_impl.cpp
@@ -101,7 +101,7 @@ int start_native_gui(wxe_data *sd)
   init_caller = driver_connected(sd->port); 
 
   if((res = erl_drv_thread_create((char *)"wxwidgets",
-				  &wxe_thread,wxe_main_loop,NULL,NULL)) == 0) {
+				  &wxe_thread,wxe_main_loop,(void *) sd->pdl,NULL)) == 0) {
     erl_drv_mutex_lock(wxe_status_m);
     for(;wxe_status == WXE_NOT_INITIATED;) {
       erl_drv_cond_wait(wxe_status_c, wxe_status_m);
@@ -179,12 +179,15 @@ void meta_command(int what, wxe_data *sd) {
  *  wxWidgets Thread 
  * ************************************************************/
 
-void *wxe_main_loop(void * not_used)
+void *wxe_main_loop(void *vpdl)
 {
   int result; 
   int  argc = 1;
   char * temp = (char *) "Erlang\0";
   char ** argv = &temp;
+  ErlDrvPDL pdl = (ErlDrvPDL) vpdl;
+  
+  driver_pdl_inc_refc(pdl);
 
   // ErlDrvSysInfo einfo;
   // driver_system_info(&einfo, sizeof(ErlDrvSysInfo));
@@ -199,6 +202,7 @@ void *wxe_main_loop(void * not_used)
   if(result >= 0 && wxe_status == WXE_INITIATED) {
     /* We are done try to make a clean exit */
     wxe_status = WXE_EXITED;
+    driver_pdl_dec_refc(pdl);
     erl_drv_thread_exit(NULL);
     return NULL;
   } else {
@@ -206,6 +210,7 @@ void *wxe_main_loop(void * not_used)
     wxe_status = WXE_ERROR;
     erl_drv_cond_signal(wxe_status_c);
     erl_drv_mutex_unlock(wxe_status_m);
+    driver_pdl_dec_refc(pdl);
     return NULL;    
   }
 }
@@ -401,11 +406,12 @@ void WxeApp::dispatch_cb(wxList * batch, wxList * temp, ErlDrvTermData process)
 	   node = batch->GetFirst())
 	{
 	  wxeCommand *event = (wxeCommand *)node->GetData();
+	  wxeMemEnv *memenv = getMemEnv(event->port);
 	  batch->Erase(node);
 	  if(event->caller == process ||  // Callbacks from CB process only 
 	     event->op == WXE_CB_START || // Recursive event callback allow
 	     // Allow connect_cb during CB i.e. msg from wxe_server.
-	     event->caller == driver_connected(event->port)) 
+	     event->caller == memenv->owner) 
 	    {
 	      switch(event->op) {
 	      case WXE_BATCH_END:
@@ -456,6 +462,9 @@ void WxeApp::dispatch_cb(wxList * batch, wxList * temp, ErlDrvTermData process)
 
 void WxeApp::newMemEnv(wxeMetaCommand& Ecmd) {
   wxeMemEnv * memenv = new wxeMemEnv();
+
+  driver_pdl_inc_refc(Ecmd.pdl);
+
   for(int i = 0; i < global_me->next; i++) {
     memenv->ref2ptr[i] = global_me->ref2ptr[i];    
   }
@@ -576,6 +585,7 @@ void WxeApp::destroyMemEnv(wxeMetaCommand& Ecmd) {
 //   }
 //   fflush(stderr);
   delete memenv;
+  driver_pdl_dec_refc(Ecmd.pdl);
   refmap.erase((ErlDrvTermData) Ecmd.port);
 }
 
diff --git a/lib/wx/c_src/wxe_impl.h b/lib/wx/c_src/wxe_impl.h
index 5e9d596633..39c02f8c1a 100644
--- a/lib/wx/c_src/wxe_impl.h
+++ b/lib/wx/c_src/wxe_impl.h
@@ -1,19 +1,19 @@
 /*
  * %CopyrightBegin%
- * 
- * Copyright Ericsson AB 2008-2009. All Rights Reserved.
- * 
+ *
+ * Copyright Ericsson AB 2008-2010. All Rights Reserved.
+ *
  * The contents of this file are subject to the Erlang Public License,
  * Version 1.1, (the "License"); you may not use this file except in
  * compliance with the License. You should have received a copy of the
  * Erlang Public License along with this software. If not, it can be
  * retrieved online at http://www.erlang.org/.
- * 
+ *
  * Software distributed under the License is distributed on an "AS IS"
  * basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See
  * the License for the specific language governing rights and limitations
  * under the License.
- * 
+ *
  * %CopyrightEnd% 
  */
 
@@ -34,15 +34,16 @@ class wxeMetaCommand : public wxEvent
  public: 
  wxeMetaCommand(wxe_data *sd, int EvId) 
     : wxEvent(EvId, wxeEVT_META_COMMAND)
-   {  caller = driver_caller(sd->port);  port = sd->port; } ;
+   {  caller = driver_caller(sd->port);  port = sd->port; pdl = sd->pdl; } ;
  wxeMetaCommand(const wxeMetaCommand& event)  
     : wxEvent(event) 
-   {  caller = event.caller; port = event.port; };
+   {  caller = event.caller; port = event.port; pdl = event.pdl; };
    virtual ~wxeMetaCommand() {};
    virtual wxEvent *Clone() const { return new wxeMetaCommand(*this); }
    
    ErlDrvTermData   caller;
    ErlDrvPort       port; 
+   ErlDrvPDL        pdl;
 };
 
 class wxeCommand : public wxObject