ncbiapp.cpp

ncbi源码

            }
        }
    }
    catch (CException) {
        ; // Just catch an all exceptions from CDll
    }
    // This method don't work -- use standard method
#  endif

#  if defined(NCBI_OS_LINUX) && 0
    // Linux OS: Try more accurate method of detection
    {{
        char   buf[FILENAME_MAX + 1];
        string procfile = "/proc/" + NStr::IntToString(getpid()) + "/exe";
        int    ncount   = readlink((procfile).c_str(), buf, FILENAME_MAX);
        if ( ncount != -1 ) {
            buf[ncount] = 0;
            return buf;
        }
    }}
    // This method don't work -- use standard method
#  endif

    if ( !CDirEntry::IsAbsolutePath(app_path) ) {
#  if defined(NCBI_OS_MSWIN)
        // Add default ".exe" extention to the name of executable file
        // if it running without extension
        string dir, title, ext;
        CDirEntry::SplitPath(app_path, &dir, &title, &ext);
        if ( ext.empty() ) {
            app_path = CDirEntry::MakePath(dir, title, "exe");
        }
#  endif
        if ( CFile(app_path).Exists() ) {
            // Relative path from the the current directory
            app_path = CDir::GetCwd() + CDirEntry::GetPathSeparator()+app_path;
            if ( !CFile(app_path).Exists() ) {
                app_path = kEmptyStr;
            }
        } else {
            // Running from some path from PATH environment variable.
            // Try to determine that path.
            string env_path = GetEnvironment().Get("PATH");
            list<string> split_path;
#  if defined(NCBI_OS_MSWIN)
            NStr::Split(env_path, ";", split_path);
#  else
            NStr::Split(env_path, ":", split_path);
#  endif
            string base_name = CDirEntry(app_path).GetBase();
            ITERATE(list<string>, it, split_path) {
                app_path = CDirEntry::MakePath(*it, base_name);
                if ( CFile(app_path).Exists() ) {
                    break;
                }
                app_path = kEmptyStr;
            }
        }
    }
    ret_val = CDirEntry::NormalizePath(app_path.empty() ? argv[0] : app_path);

#else  // defined (NCBI_OS_MSWIN)  ||  defined(NCBI_OS_UNIX)

#  error "Platform unrecognized"
#endif
    return ret_val;
}


void CNcbiApplication::HonorDebugSettings(CNcbiRegistry* reg)
{
    if (reg == 0) {
        reg = m_Config;
        if (reg == 0)
            return;
    }
    
    // Setup the debugging features
    if ( !reg->Get("DEBUG", DIAG_TRACE).empty() ) {
        SetDiagTrace(eDT_Enable, eDT_Enable);
    }
    if ( !reg->Get("DEBUG", ABORT_ON_THROW).empty() ) {
        SetThrowTraceAbort(true);
    }
    string post_level = reg->Get("DEBUG", DIAG_POST_LEVEL);
    if ( !post_level.empty() ) {
        EDiagSev sev;
        if (CNcbiDiag::StrToSeverityLevel(post_level.c_str(), sev)) {
            SetDiagFixedPostLevel(sev);
        }
    }
    string msg_file = reg->Get("DEBUG", DIAG_MESSAGE_FILE);
    if ( !msg_file.empty() ) {
        CDiagErrCodeInfo* info = new CDiagErrCodeInfo();
        if ( !info  ||  !info->Read(msg_file) ) {
            if ( info ) {
                delete info;
            }
            ERR_POST(Warning << "Applications message file \""
                     << msg_file
                     << "\" is not found");
        } else {
            SetDiagErrCodeInfo(info);
        }
    }
}


END_NCBI_SCOPE


/*
 * ===========================================================================
 * $Log: ncbiapp.cpp,v $
 * Revision 1000.5  2004/06/03 19:28:14  gouriano
 * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.85
 *
 * Revision 1.85  2004/06/02 20:45:27  vakatov
 * CNcbiApplication::AppMain() not to printout line of '=' before USAGE
 *
 * Revision 1.84  2004/05/14 13:59:26  gorelenk
 * Added include of ncbi_pch.hpp
 *
 * Revision 1.83  2004/03/02 15:57:34  ucko
 * Downgrade severity of missing Mac arguments file to Info, since Darwin
 * allows actual command lines.
 *
 * Revision 1.82  2004/01/06 18:17:49  dicuccio
 * Added APIs for setting environment variables
 *
 * Revision 1.81  2003/12/17 20:25:46  ucko
 * x_SetupStdio: for the sake of interactive applications, don't buffer
 * cin if it's a terminal.
 *
 * Revision 1.80  2003/11/21 21:03:37  vakatov
 * Cosmetics
 *
 * Revision 1.79  2003/11/21 20:12:20  kuznets
 * Minor clean-up
 *
 * Revision 1.78  2003/11/21 19:53:58  kuznets
 * Added catch(...) to intercept all exceptions and give compiler
 * (MSVC) a chance to call destructors even if this exception
 * will never be handled and causes crash.
 *
 * Revision 1.77  2003/11/19 13:54:19  ivanov
 * FindProgramExecutablePath: Replaced GetEntryPoint with GetEntryPoint_Func
 *
 * Revision 1.76  2003/10/10 19:37:13  lavr
 * Ugly workaround for G++/Solaris C RTL (FILE*) interactions that affect
 * stdio constructed on pipes (sockets).  To be fully investigated later...
 *
 * Revision 1.75  2003/10/01 14:32:09  ucko
 * +EFollowLinks
 *
 * Revision 1.74  2003/09/30 21:12:30  ucko
 * CNcbiApplication::LoadConfig: if run through a symlink and there's no
 * configuration file for the link's source, try its (ultimate) target.
 *
 * Revision 1.73  2003/09/29 20:28:00  vakatov
 * + LoadConfig(...., reg_flags)
 *
 * Revision 1.72  2003/09/25 19:34:51  ucko
 * FindProgramExecutablePath: disable Linux-specific logic, since it
 * loses the ability to detect having been run through a symlink.
 *
 * Revision 1.71  2003/09/25 13:33:58  rsmith
 * NCBI_OS_DARWIN and NCBI_OS_UNIX are not mutually exclusive.
 *
 * Revision 1.70  2003/09/22 13:43:41  ivanov
 * Include <corelib/ncbidll.hpp> only on MSWin. + include <corelib/ncbi_os_mswin.hpp>
 *
 * Revision 1.69  2003/09/17 21:03:58  ivanov
 * FindProgramExecutablePath:  try more accurate method of detection on MS Windows
 *
 * Revision 1.68  2003/09/16 20:55:33  ivanov
 * FindProgramExecutablePath:  try more accurate method of detection on Linux.
 *
 * Revision 1.67  2003/09/16 16:35:38  ivanov
 * FindProgramExecutablePath(): added implementation for UNIX and MS-Windows
 *
 * Revision 1.66  2003/08/06 20:27:17  ucko
 * LoadConfig: take advantage of the latest changes to CMetaRegistry to
 * reuse reg.
 *
 * Revision 1.65  2003/08/06 14:31:55  ucko
 * LoadConfig: Only replace m_Config if it was empty, and remember to
 * delete the old object if we owned it.
 *
 * Revision 1.64  2003/08/05 20:00:36  ucko
 * Completely rewrite LoadConfig to use CMetaRegistry; properly handle
 * only sometimes owning m_Config.
 *
 * Revision 1.63  2003/06/26 18:55:40  rsmith
 * call LoadConfig even if conf is null, child classes might do something
 * anyway. (gbench).
 *
 * Revision 1.62  2003/06/25 15:59:00  rsmith
 * factor out config file DEBUG settings into HonorDebugSettings
 *
 * Revision 1.61  2003/06/23 18:02:31  vakatov
 * CNcbiApplication::MacArgMunging() moved from header to the source file.
 * Heed warnings, formally reformat the code and comments.
 *
 * Revision 1.60  2003/06/18 20:41:23  ucko
 * FindProgramExecutablePath: conditionalize the Darwin-specific code on
 * Metrowerks, since no executable linked against Carbon can run remotely. :-/
 *
 * Revision 1.59  2003/06/16 13:52:27  rsmith
 * Add ProgramDisplayName member. Program name becomes real executable full
 * path. Handle Mac special arg handling better.
 *
 * Revision 1.58  2003/04/07 21:22:54  gouriano
 * correct App exit codes when CException was catched
 *
 * Revision 1.57  2003/03/19 19:37:10  gouriano
 * added optional adjustment of stdio streams
 *
 * Revision 1.56  2003/03/14 21:01:06  kans
 * commented out include Processes because Mac OS 10.2 libraries give an
 * undefined symbol error
 *
 * Revision 1.55  2003/03/14 20:35:24  rsmith
 * Comment out previous changes for Mac OSX since on 10.2 the header files
 * do not compile properly.
 *
 * Revision 1.54  2003/03/13 22:16:11  rsmith
 * on Metrowerks, Mac OSX, always use ncbi.args as the file name for arguments.
 *
 * Revision 1.53  2003/03/13 22:04:27  rsmith
 * Changes to AppMain so MacOSX can find out the appname and arguments.
 *
 * Revision 1.52  2003/02/17 06:30:05  vakatov
 * Get rid of an unused variable
 *
 * Revision 1.51  2002/12/26 17:13:03  ivanov
 * Added version info and Set/GetVersion functions into CNcbiApplication class
 *
 * Revision 1.50  2002/12/18 22:54:48  dicuccio
 * Shuffled some headers to avoid a potentially serious compiler warning
 * (deletion of incomplete type in Windows).
 *
 * Revision 1.49  2002/08/08 18:36:50  gouriano
 * added HideStdArgs function
 *
 * Revision 1.48  2002/08/08 13:39:06  gouriano
 * logfile & conffile-related correction
 *
 * Revision 1.47  2002/08/02 20:13:06  gouriano
 * added possibility to disable arg descriptions
 *
 * Revision 1.46  2002/08/01 19:02:17  ivanov
 * Added autoload of the verbose message file specified in the
 * applications configuration file.
 *
 * Revision 1.45  2002/07/31 18:33:44  gouriano
 * added default argument description,
 * added info about logfile and conffile optional arguments
 *
 * Revision 1.44  2002/07/22 19:33:28  ivanov
 * Fixed bug with internal processing parameters -conffile and -logfile
 *
 * Revision 1.43  2002/07/15 18:17:23  gouriano
 * renamed CNcbiException and its descendents
 *
 * Revision 1.42  2002/07/11 14:18:25  gouriano
 * exceptions replaced by CNcbiException-type ones
 *
 * Revision 1.41  2002/07/10 16:20:13  ivanov
 * Changes related with renaming
 * SetDiagFixedStrPostLevel()->SetDiagFixedPostLevel()
 *
 * Revision 1.40  2002/07/09 16:36:52  ivanov
 * s_SetFixedDiagPostLevel() moved to ncbidiag.cpp
 * and renamed to SetDiagFixedStrPostLevel()
 *
 * Revision 1.39  2002/07/02 18:31:38  ivanov
 * Added assignment the value of diagnostic post level from environment
 * variable and config file if set. Disable to change it from application
 * in this case.
 *
 * Revision 1.38  2002/06/19 16:57:56  ivanov
 * Added new default command line parameters "-logfile <file>" and
 * "-conffile <file>" into CNcbiApplication::AppMain()
 *
 * Revision 1.37  2002/04/11 21:08:00  ivanov
 * CVS log moved to end of the file
 *
 * Revision 1.36  2002/01/22 19:28:37  ivanov
 * Changed ConcatPath() -> ConcatPathEx() in LoadConfig()
 *
 * Revision 1.35  2002/01/20 05:53:59  vakatov
 * Get rid of a GCC warning;  formally rearrange some code.
 *
 * Revision 1.34  2002/01/10 16:52:20  ivanov
 * Changed LoadConfig() -- new method to search the config file
 *
 * Revision 1.33  2001/08/20 14:58:10  vakatov
 * Get rid of some compilation warnings
 *
 * Revision 1.32  2001/08/10 18:26:07  vakatov
 * Allow user to throw "CArgException" (and thus force USAGE printout
 * with user-provided explanation) not from any of Init(), Run() or Exit().
 *
 * Revision 1.31  2001/07/07 01:19:28  juran
 * Use "ncbi" for app name on Mac OS (if argv[0] is null).
 *
 * Revision 1.30  2001/03/26 20:07:40  vakatov
 * [NCBI_OS_MAC]  Use argv[0] (if available) as basename for ".args"
 *
 * Revision 1.29  2001/02/02 16:19:27  vasilche
 * Fixed reading program arguments on Mac
 *
 * Revision 1.28  2001/02/01 19:53:26  vasilche
 * Reading program arguments from file moved to CNcbiApplication::AppMain.
 *
 * Revision 1.27  2000/12/23 05:50:53  vakatov
 * AppMain() -- check m_ArgDesc for NULL
 *
 * Revision 1.26  2000/11/29 17:00:25  vakatov
 * Use LOG_POST instead of ERR_POST to print cmd.-line arg usage
 *
 * Revision 1.25  2000/11/24 23:33:12  vakatov
 * CNcbiApplication::  added SetupArgDescriptions() and GetArgs() to
 * setup cmd.-line argument description, and then to retrieve their
 * values, respectively. Also implements internal error handling and
 * printout of USAGE for the described arguments.
 *
 * Revision 1.24  2000/11/01 20:37:15  vasilche
 * Fixed detection of heap objects.
 * Removed ECanDelete enum and related constructors.
 * Disabled sync_with_stdio ad the beginning of AppMain.
 *
 * Revision 1.23  2000/06/09 18:41:04  vakatov
 * FlushDiag() -- check for empty diag.buffer
 *
 * Revision 1.22  2000/04/04 22:33:35  vakatov
 * Auto-set the tracing and the "abort-on-throw" debugging features
 * basing on the application environment and/or registry
 *
 * Revision 1.21  2000/01/20 17:51:18  vakatov
 * Major redesign and expansion of the "CNcbiApplication" class to 
 *  - embed application arguments   "CNcbiArguments"
 *  - embed application environment "CNcbiEnvironment"
 *  - allow auto-setup or "by choice" (see enum EAppDiagStream) of diagnostics
 *  - allow memory-resided "per application" temp. diagnostic buffer
 *  - allow one to specify exact name of the config.-file to load, or to
 *    ignore the config.file (via constructor's "conf" arg)
 *  - added detailed comments
 *
 * Revision 1.20  1999/12/29 21:20:18  vakatov
 * More intelligent lookup for the default config.file. -- try to strip off
 * file extensions if cannot find an exact match;  more comments and tracing
 *
 * Revision 1.19  1999/11/15 15:54:59  sandomir
 * Registry support moved from CCgiApplication to CNcbiApplication
 *
 * Revision 1.18  1999/06/11 20:30:37  vasilche
 * We should catch exception by reference, because catching by value
 * doesn't preserve comment string.
 *
 * Revision 1.17  1999/05/04 00:03:12  vakatov
 * Removed the redundant severity arg from macro ERR_POST()
 *
 * Revision 1.16  1999/04/30 19:21:03  vakatov
 * Added more details and more control on the diagnostics
 * See #ERR_POST, EDiagPostFlag, and ***DiagPostFlag()
 *
 * Revision 1.15  1999/04/27 14:50:06  vasilche
 * Added FastCGI interface.
 * CNcbiContext renamed to CCgiContext.
 *
 * Revision 1.14  1999/02/22 21:12:38  sandomir
 * MsgRequest -> NcbiContext
 *
 * Revision 1.13  1998/12/28 23:29:06  vakatov
 * New CVS and development tree structure for the NCBI C++ projects
 *
 * Revision 1.12  1998/12/28 15:43:12  sandomir
 * minor fixed in CgiApp and Resource
 *
 * Revision 1.11  1998/12/14 15:30:07  sandomir
 * minor fixes in CNcbiApplication; command handling fixed
 *
 * Revision 1.10  1998/12/09 22:59:35  lewisg
 * use new cgiapp class
 *
 * Revision 1.7  1998/12/09 16:49:56  sandomir
 * CCgiApplication added
 *
 * Revision 1.4  1998/12/03 21:24:23  sandomir
 * NcbiApplication and CgiApplication updated
 *
 * Revision 1.3  1998/12/01 19:12:08  lewisg
 * added CCgiApplication
 *
 * Revision 1.2  1998/11/05 21:45:14  sandomir
 * std:: deleted
 *
 * Revision 1.1  1998/11/02 22:10:13  sandomir
 * CNcbiApplication added; netest sample updated
 *
 * ===========================================================================
 */