added xterm window for trace output

inc/Trace.h

@@ -29,14 +29,35 @@ using namespace std;
  */
 class Trace: sc_module {
 public:
-    // TLM-2 socket, defaults to 32-bits wide, base protocol
+
+    /**
+     * @brief Bus socket
+     */
     tlm_utils::simple_target_socket<Trace> socket;
 
-    // Constructor
+    /**
+     * @brief Constructor
+     * @param name Module name
+     */
     Trace(sc_module_name name);
-
+    
+    /**
+     * @brief Destructor
+     */
+    ~Trace();
+    
+private:
+    
     // TLM-2 blocking transport method
     virtual void b_transport( tlm::tlm_generic_payload& trans, sc_time& delay );
+    
+    void xtermLaunch(char *slaveName);
+    void xtermKill( const char *mess );
+    void xtermSetup(void);
+    
+    int ptSlave;
+    int ptMaster;
+    int xtermPid;
 };
 
 #endif

src/Trace.cpp

@@ -1,12 +1,102 @@
+#include <stdio.h>
+#include <fstream>
+#include <iostream>
+#include <termios.h>
+#include <stdlib.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+// Code taken from 
+// https://github.com/embecosm/esp1-systemc-tlm/blob/master/sysc-models/simple-soc/TermSC.h
+
 #include "Trace.h"
 
+void Trace::xtermLaunch( char *slaveName ) {
+    char *arg;
+    char *fin = &(slaveName[strlen( slaveName ) - 2]);
+    
+    if( NULL == strchr(fin, '/' )) {
+        arg = new char[2 + 1 + 1 + 20 + 1];
+        sprintf( arg, "-S%c%c%d", fin[0], fin[1], ptMaster );
+    } else {
+        char *slaveBase = ::basename( slaveName );
+        arg = new char[2 + strlen( slaveBase ) + 1 + 20 + 1];
+        sprintf( arg, "-S%s/%d", slaveBase, ptMaster );
+    }
+    
+    char *argv[3];
+    argv[0] = (char *)( "xterm" );
+    argv[1] = arg;
+    argv[2] = NULL;
+    
+    execvp( "xterm", argv );
+}
+
+void Trace::xtermKill( const char *mess ) {
+    
+    
+    if( -1 != ptSlave ) {			// Close down the slave
+        
+        close( ptSlave );			// Close the FD
+        ptSlave  = -1;
+    }
+    
+    if( -1 != ptMaster ) {		// Close down the master
+        close( ptMaster );
+        ptMaster = -1;
+    }
+    
+    if( xtermPid > 0 ) {			// Kill the terminal
+        kill( xtermPid, SIGKILL );
+        waitpid( xtermPid, NULL, 0 );
+    }
+    
+    if( NULL != mess ) {			// If we really want a message
+        perror( mess );
+    }
+    
+    
+}
+
+void Trace::xtermSetup(void) {
+    ptMaster = open("/dev/ptmx", O_RDWR);
+    grantpt( ptMaster );
+    
+    unlockpt( ptMaster );
+    
+    char *ptSlaveName = ptsname( ptMaster );
+    ptSlave = open( ptSlaveName, O_RDWR );	// In and out are the same
+    
+    struct termios  termInfo;
+    tcgetattr( ptSlave, &termInfo );
+    
+    termInfo.c_lflag &= ~ECHO;
+    termInfo.c_lflag &= ~ICANON;
+    tcsetattr( ptSlave, TCSADRAIN, &termInfo );
+    
+    xtermPid = fork();
+    
+    if (xtermPid == 0) {
+        xtermLaunch( ptSlaveName );
+    }
+}
+
 SC_HAS_PROCESS(Trace);
 Trace::Trace(sc_module_name name): sc_module(name)
-  ,socket("socket") {
+,socket("socket") {
+    
     socket.register_b_transport(this, &Trace::b_transport);
-  }
-
+    
+    xtermSetup();
+}
 
+Trace::~Trace() {
+    xtermKill( NULL );
+}
 void Trace::b_transport( tlm::tlm_generic_payload& trans, sc_time& delay ) {
     //tlm::tlm_command cmd = trans.get_command();
     //sc_dt::uint64    adr = trans.get_address() / 4;
@@ -14,8 +104,8 @@ void Trace::b_transport( tlm::tlm_generic_payload& trans, sc_time& delay ) {
     //unsigned int     len = trans.get_data_length();
     //unsigned char*   byt = trans.get_byte_enable_ptr();
     //unsigned int     wid = trans.get_streaming_width();
-
-    cout << (char) *ptr << flush;
-
+    
+    write(ptSlave, ptr, 1);    
+    
     trans.set_response_status( tlm::TLM_OK_RESPONSE );
 }