osprey/ipa/common/ipc_daVinci.cxx

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/*
 * Copyright 2003, 2004, 2005, 2006 PathScale, Inc.  All Rights Reserved.
 */

/*

  Copyright (C) 2000, 2001 Silicon Graphics, Inc.  All Rights Reserved.

  This program is free software; you can redistribute it and/or modify it
  under the terms of version 2 of the GNU General Public License as
  published by the Free Software Foundation.

  This program is distributed in the hope that it would be useful, but
  WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  

  Further, this software is distributed without any warranty that it is
  free of the rightful claim of any third person regarding infringement 
  or the like.  Any license provided herein, whether implied or 
  otherwise, applies only to this software file.  Patent licenses, if 
  any, provided herein do not apply to combinations of this program with 
  other software, or any other product whatsoever.  

  You should have received a copy of the GNU General Public License along
  with this program; if not, write the Free Software Foundation, Inc., 59
  Temple Place - Suite 330, Boston MA 02111-1307, USA.

  Contact information:  Silicon Graphics, Inc., 1600 Amphitheatre Pky,
  Mountain View, CA 94043, or:

  http://www.sgi.com

  For further information regarding this notice, see:

  http://oss.sgi.com/projects/GenInfo/NoticeExplan

*/


/* ====================================================================
 * ====================================================================
 *
 * Module: ipc_daVinci.cxx
 * $Revision: 1.1.1.1 $
 * $Date: 2005/10/21 19:00:00 $
 * $Author: marcel $
 * $Source: /proj/osprey/CVS/open64/osprey1.0/ipa/common/ipc_daVinci.cxx,v $
 *
 * Description:
 *  interface to daVinci, a visualization system for displaying
 *  directed graphs.
 *
 * ====================================================================
 * ====================================================================
 */

#if defined(BUILD_OS_DARWIN)
#include <darwin_elf.h>
#else /* defined(BUILD_OS_DARWIN) */
#include <elf.h>        // for ipa_cg.h (Elf64_Word)
#endif /* defined(BUILD_OS_DARWIN) */
#include <sys/types.h>        // for pid_t
#include <unistd.h>       // for fork(), pipe(), etc.
#include <signal.h>       // for SIGINT
#include <wait.h>       // for waitpid()

#define USE_STANDARD_TYPES          /* override unwanted defines in defs.h */
#include "defs.h"
#include "errors.h"       // for FmtAssert
#include "ip_graph.h"       // for NODE_ITER and GRAPH
#include "ip_binding.h"       // for ipc_file.h
#include "strtab.h"       // for ipc_file.h
#include "stab.h"       // for ipc_file.h
#include "const.h"        // for ipc_file.h
#include "irbdata.h"        // for ipc_file.h
#define USE_DST_INTERNALS
#include "dwarf_DST_mem.h"      // for ipc_file.h
#include "ipc_file.h"       // for ipa_cg.h
#include "pu_info.h"        // for ipa_cg.h
#include "ipa_cg.h"       // for IPA_CALL_GRAPH
#include "ipa_inline.h"       // for IPA_NODE
#include "ipa_option.h"       // for IPA_Enable_daVinci
#include "ipc_daVinci.h"

daVinci *cg_display = 0;

daVinci::daVinci (GRAPH *_g, MEM_POOL *_m)
{
    g = _g;
    m = _m;
    IPA_Enable_daVinci = display_ok = FALSE;
    to_display = from_display = NULL;

    if (isatty (1) == 0 && isatty (2) == 0)
  return;         // none of stdout and stderr is a tty

    /* now connect to daVinci */
    int read_pipe[2], write_pipe[2];

    if (pipe (read_pipe) == -1 || pipe (write_pipe) == -1)
  return;

    from_display = fdopen (read_pipe[0], "r");
    setbuf (from_display, NULL);
    to_display = fdopen (write_pipe[1], "w");
    setbuf (to_display, NULL);

    switch (pid = fork ()) {
    case -1:          // can't fork
  close (read_pipe[0]);
  close (read_pipe[1]);
  close (write_pipe[0]);
  close (write_pipe[1]);
  return;

    case 0:         // child
  dup2 (write_pipe[0], 0);    // reset stdin, stdout, and stderr
  dup2 (read_pipe[1], 1);
  dup2 (read_pipe[1], 2);

  close (write_pipe[0]);      // close unused pipes.
  close (read_pipe[1]);     // leave the other pair opened so
            // that daVinci does not die when
            // ipa exits.

  execlp ("daVinci", "daVinci", "-pipe", 0);
  exit (1);       // exec fail, just exit

    default:          // parent
  close (read_pipe[1]);
  close (write_pipe[0]);
  wait_for ();
    }

    IPA_Enable_daVinci = TRUE;

} // daVinci::daVinci


/* wait for the "ok" message from daVinci */
void
daVinci::wait_for (const char *str)
{
    char buf[512];

    while (fgets (buf, 512, from_display) != NULL) {
  if (strcmp (buf, "ok\n") == 0) {
      display_ok = TRUE;
      return;
  } else {
      switch (buf[0]) {
      case 'n':       // node* or no_*
      case 'e':       // edge*
      case 'm':       // menu*
      case 'a':       // answer*
    if (strncmp (buf, str, strlen(str)) == 0) {
        display_ok = TRUE;
        return;
    }
    break;
      default:
    fputs (buf, stderr);
    cleanup ();
    return;
      }
  }
    }

    cleanup ();
    return;
} // daVinci::wait_for


void
daVinci::cleanup (void)
{
    int stat;
    
    display_ok = FALSE;
    kill (pid, SIGINT);
    waitpid (pid, &stat, WNOHANG);  // capture any SIGCHLD so not to
            // confuse ipacom.
    fclose (to_display);
    fclose (from_display);
} // daVinci::cleanup


// translate the subgraph into Term representation (use preorder traversal)
void
daVinci::Graph_To_Term (NODE_INDEX v, mUINT8 *visit)
{
    IPA_NODE *node = (IPA_NODE *) g->Node_User(v);
    static const char attr[] = "a(\"COLOR\",\"lightblue\")";

    visit[v] = 1;
    fprintf (to_display, "l(\"%d\",n(\"\",[a(\"OBJECT\",\"%s\"),%s],[",
       v, node->Name(), attr); 
    
    NODE_ITER vitr(g, v);

    for (NODE_INDEX vi = vitr.First_Succ(); vi != -1; vi = vitr.Next_Succ()) {

  fprintf(to_display, "l(\"%d\",e(\"\",[],", vitr.Current_Edge_Index());
  if (visit[vi] == 0)
      Graph_To_Term (vi, visit);
  else 
      fprintf (to_display, "r(\"%d\")", vi);
  fprintf (to_display, ")),");
    }

    fprintf (to_display, "]))");
} // daVinci::Graph_To_Term


void
daVinci::Translate_Call_Graph (void)
{
    if (!display_ok)
  return;

    mUINT8 *visit = CXX_NEW_ARRAY (mUINT8, GRAPH_vmax (g), m);
    BZERO (visit, sizeof(mUINT8)*GRAPH_vmax(g));

    fprintf (to_display, "new_term([");
    NODE_ITER vitr(g, GRAPH_root(g));
    for (NODE_INDEX vi = vitr.First_Succ(); vi != -1; vi = vitr.Next_Succ()) {
  if (visit[vi] == 0) {
      Graph_To_Term (vi, visit);
      fprintf (to_display, ",");
  }
    }
    fprintf (to_display, "])\n");

    CXX_DELETE (visit, m);

    wait_for ();
} // daVinci::Translate_Call_Graph 


void
daVinci::Mark_Used (NODE_INDEX v)
{
    
    if (!display_ok)
  return;
    
    fprintf (to_display, "change_node_color(\"%d\",\"red\")\n", v);
    wait_for ();
} // daVinci::Mark_Used (NODE_INDEX v)


void
daVinci::Mark_Deleted (NODE_INDEX v)
{
    
    if (!display_ok)
  return;
    
    fprintf (to_display, "change_node_color(\"%d\",\"lightgray\")\n", v);
    wait_for ();
} // daVinci::Mark_Deleted (NODE_INDEX v)


void
daVinci::Mark_Inlined_Caller (NODE_INDEX v)
{
    if (!display_ok)
  return;
    
    fprintf (to_display, "change_node_color(\"%d\",\"violet\")\n", v);
    wait_for ();
} // daVinci::Mark_Inlined_Caller


void
daVinci::Mark_Inlined_Callee (NODE_INDEX v)
{
    if (!display_ok)
  return;
    
    fprintf (to_display, "change_node_color(\"%d\",\"lightred\")\n", v);
    wait_for ();
} // daVinci::Mark_Inlined_Callee


void
daVinci::Mark_Inlined_Deleted (NODE_INDEX v)
{
    if (!display_ok)
  return;
    fprintf (to_display, "select_nodes_labels([\"%d\"])\n", v);
    wait_for ("node_selections_labels");
    fprintf (to_display, "hide_or_show_edges\n");
    wait_for ();
} // daVinci::Mark_Inlined_Deleted

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