mainfunc.C File Reference

#include "memusage.h"
#include "converse.h"
#include "common.h"
#include "BackEnd.h"
#include "InfoStream.h"
#include "Broadcasts.h"
#include "NamdState.h"
#include "Node.h"
#include <unistd.h>
#include <sys/stat.h>
#include "ConfigList.h"
#include "ScriptTcl.h"

Go to the source code of this file.

Macros
#define	CHDIR   chdir
#define	GETCWD   getcwd
#define	PATHSEP   '/'
#define	PATHSEPSTR   "/"
#define	CWDSIZE   1024

Functions
void	after_backend_init (int argc, char **argv)
int	main (int argc, char **argv)

Macro Definition Documentation

#define CHDIR   chdir

Copyright (c) 1995, 1996, 1997, 1998, 1999, 2000 by The Board of Trustees of the University of Illinois. All rights reserved.

Definition at line 24 of file mainfunc.C.

Referenced by after_backend_init().

#define CWDSIZE   1024

Referenced by after_backend_init().

#define GETCWD   getcwd

Definition at line 25 of file mainfunc.C.

Referenced by after_backend_init().

#define PATHSEP   '/'

Definition at line 26 of file mainfunc.C.

Referenced by after_backend_init().

#define PATHSEPSTR   "/"

Definition at line 27 of file mainfunc.C.

Referenced by after_backend_init().

Function Documentation

void after_backend_init	(	int	argc,
		char **	argv
	)

Definition at line 54 of file mainfunc.C.

References CHDIR, CWDSIZE, endi(), ScriptTcl::eval(), BackEnd::exit(), GETCWD, iINFO(), iout, ScriptTcl::load(), NAMD_die(), NAMD_err(), Node::Object(), PATHSEP, PATHSEPSTR, ScriptTcl::run(), Node::setScript(), and ScriptTcl::tclmain().

Referenced by main(), and slave_init().

                                              {
#define CWDSIZE 1024
  char origcwd_buf[CWDSIZE];
  char currentdir_buf[CWDSIZE];

  ScriptTcl *script = new ScriptTcl;
  Node::Object()->setScript(script);

  for(argc = 0; argv[argc]; ++argc);
  if ( argc < 2 ) {
#if defined(WIN32) && !defined(__CYGWIN__)
    CkPrintf("\nFATAL ERROR: No simulation config file specified on command line.\n");
    CkPrintf("\nNOTE: NAMD has no graphical interface and must be run from a command line.\n");
    int nsleep = 10;
    CkPrintf("\nSleeping %d seconds before exiting...\n", nsleep);
    fflush(stdout);
    sleep(nsleep);
    CkPrintf("\n");
#endif
    NAMD_die("No simulation config file specified on command line.");
  }
  char *origcwd = GETCWD(origcwd_buf,CWDSIZE);
  if ( ! origcwd ) NAMD_err("getcwd");
#ifdef NAMD_TCL
  for(int i = 1; i < argc; ++i) {
  if ( strstr(argv[i],"--") == argv[i] ) {
    char buf[1024];
    if ( i + 1 == argc ) {
      sprintf(buf, "missing argument for command line option %s", argv[i]);
      NAMD_die(buf);
    }
    if ( ! strcmp(argv[i],"--tclmain") ) {
      // pass all remaining arguments to script
      iout << iINFO << "Command-line argument is";
      for ( int j=i; j<argc; ++j ) { iout << " " << argv[j]; }
      iout << "\n" << endi;
      script->tclmain(argc-i-1,argv+i+1);
      BackEnd::exit();
      return;
    }
    sprintf(buf, "%s %s", argv[i]+2, argv[i+1]);
    iout << iINFO << "Command-line argument is --" << buf << "\n" << endi;
    script->eval(buf);
    ++i;
    continue;
  }
  char *confFile = argv[i];
#else
  char *confFile = argv[argc-1];
#endif
  iout << iINFO << "Configuration file is " << confFile << "\n" << endi;

  char *currentdir=confFile;
  char *tmp;
  char tmpcurdir[3];
  for(tmp=confFile;*tmp;++tmp); // find final null
  for( ; tmp != confFile && *tmp != PATHSEP; --tmp); // find last '/'
#if defined(WIN32) && !defined(__CYGWIN__)
  if (tmp == confFile) {
    // in case this is under cygwin, search for '/' as well
    for(tmp=confFile;*tmp;++tmp); // find final null
    for( ; tmp != confFile && *tmp != '/'; --tmp); // find last '/'
  }
#endif
  if ( CHDIR(origcwd) ) NAMD_err(origcwd);
  if ( tmp != confFile )
  {
    *tmp = 0; confFile = tmp + 1;
    if ( CHDIR(currentdir) ) NAMD_err(currentdir);
    struct stat statBuf;
    if (stat(confFile, &statBuf)) {
      char buf[1024];
      sprintf(buf,"Unable to access config file %s%c%s",currentdir,PATHSEP,confFile);
      NAMD_die(buf);
    }
    iout << iINFO << "Changed directory to " << currentdir << "\n" << endi;
    currentdir = GETCWD(currentdir_buf,CWDSIZE);
    if ( ! currentdir ) NAMD_err("getcwd after chdir");
  }
  else{
      if ( *tmp == PATHSEP ){ // config file in / is odd, but it might happen
          if ( CHDIR(PATHSEPSTR) ) NAMD_err(PATHSEPSTR);
          struct stat statBuf;
          if (stat(confFile, &statBuf)) {
            char buf[1024];
            sprintf(buf,"Unable to access config file %s",confFile);
            NAMD_die(buf);
          }
      }else{ // just a config file name, so the path is the current working path
          struct stat statBuf;
          if (stat(confFile, &statBuf)) {
            char buf[1024];
            if ( confFile[0] == '-' || confFile[0] == '+' ) {
              sprintf(buf,"Unknown command-line option %s",confFile);
            } else {
              sprintf(buf,"Unable to access config file %s",confFile);
            }
            NAMD_die(buf);
          }
          tmpcurdir[0] = '.';
          tmpcurdir[1] = PATHSEP;
          tmpcurdir[2] = 0;
          currentdir = tmpcurdir;
          iout << iINFO << "Working in the current directory " << origcwd << "\n" << endi;
      }
  }

#ifdef MEM_OPT_VERSION
    int dirlen = strlen(currentdir);
    gWorkDir = new char[dirlen+1];
    gWorkDir[dirlen]=0;
    memcpy(gWorkDir, currentdir, dirlen);
#endif

  currentdir = NULL;

#ifdef NAMD_TCL
  script->load(confFile);
#else
  script->run(confFile);
#endif

#ifdef NAMD_TCL
}
  script->run();
#endif

  BackEnd::exit();
}

int main	(	int	argc,
		char **	argv
	)

Definition at line 42 of file mainfunc.C.

References after_backend_init(), BackEnd::init(), and ScriptTcl::tclsh().

                                {
#ifdef NAMD_TCL
  if ( argc > 2 && ! strcmp(argv[1],"+tclsh") ) {
    // pass all remaining arguments to script
    return ScriptTcl::tclsh(argc-2,argv+2);
  }
#endif
  BackEnd::init(argc,argv);
  after_backend_init(argc, argv);
  return 0;
}