#include <iostream>
#include <cstdio>
#include <unistd.h>
#include <sys/types.h>
#include <sys/uio.h>
#include "XrdApps/XrdMpxXml.hh"
#include "XrdCl/XrdClBuffer.hh"
#include "XrdCl/XrdClFileSystem.hh"
#include "XrdCl/XrdClURL.hh"
#include "XrdCl/XrdClXRootDResponses.hh"

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Functions
void	Fatal (const XrdCl::XRootDStatus &Status)

int	main (int argc, char *argv[])

void	Usage (int rc)

Function Documentation

◆ Fatal()

void Fatal ( const XrdCl::XRootDStatus & Status )

Definition at line 48 of file XrdQStats.cc.

{
   std::string eText;
 
// If this is an xrootd error then get the xrootd generated error
//
   eText = (Status.code == XrdCl::errErrorResponse ?
                           eText = Status.GetErrorMessage() : Status.ToStr());
 
// Blither and exit
//
   std::cerr <<"xrdqstats: Unable to obtain statistic - " <<eText <<std::endl;
   exit(3);
}

References XrdCl::Status::code, XrdCl::errErrorResponse, XrdCl::XRootDStatus::GetErrorMessage(), and XrdCl::XRootDStatus::ToStr().

Referenced by main().

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◆ main()

int main	(	int	argc,
		char *	argv[] )

Definition at line 87 of file XrdQStats.cc.

{
   extern char *optarg;
   extern int optind, opterr, optopt;
   XrdMpxXml::fmtType fType = XrdMpxXml::fmtText;
   XrdMpxXml *xP = 0;
   const char *Stats = "bldpsu", *pgm = "xrdqstats: ";
   const char *valOpts = "df:i:n:s:z";
   int WTime = 0, Count = 0;
   char obuff[65536];
   char *sP, c;
   bool Debug = false, nozed = false;
 
// Process the options
//
   opterr = 0;
   if (argc > 1 && '-' == *argv[1]) 
      while ((c = getopt(argc,argv,valOpts)) && ((unsigned char)c != 0xff))
     { switch(c)
       {
       case 'd': Debug = true;
                 break;
       case 'f':      if (!strcmp(optarg, "cgi" )) fType = XrdMpxXml::fmtCGI;
                 else if (!strcmp(optarg, "flat")) fType = XrdMpxXml::fmtFlat;
                 else if (!strcmp(optarg, "xml" )) fType = XrdMpxXml::fmtXML;
                 else {std::cerr <<pgm <<"Invalid format - " <<optarg <<std::endl;
                       Usage(1);
                      }
                 break;
       case 'h': Usage(0);
                 break;
       case 'i': if ((WTime = atoi(optarg)) <= 0)
                    {std::cerr <<pgm <<"Invalid interval - " <<optarg <<std::endl;
                     Usage(1);
                    }
                 break;
       case 'n': if ((Count = atoi(optarg)) <= 0)
                    {std::cerr <<pgm <<"Invalid count - " <<optarg <<std::endl;
                     Usage(1);
                    }
                 break;
       case 's': sP = optarg;
                 while(*sP)
                      {if (!index("abcdipsuz", *sP))
                          {std::cerr <<pgm<<"Invalid statistic letter - "<<*sP<<std::endl;
                           Usage(1);
                          } else if (*sP == 'c') *sP = 'l';
                       sP++;
                      }
                 Stats = optarg;
                 break;
       case 'z': nozed = true;
                 break;
       default:  std::cerr <<pgm <<'-' <<char(optopt);
                 if (c == ':') std::cerr <<" value not specified." <<std::endl;
                    else std::cerr <<" option is invalid" <<std::endl;
                 Usage(1);
                 break;
       }
     }
 
// Make sure host has been specified
//
   if (optind >= argc)
      {std::cerr <<pgm <<"Host has not been specified." <<std::endl; Usage(1);}
 
// Construct the URL to get to the server
//
   std::string sURL("root://");
   sURL += argv[optind];
   XrdCl::URL fsURL(sURL);
   if (!fsURL.IsValid())
      {std::cerr <<pgm <<"Invalid host specification - " <<argv[optind] <<std::endl;
       Usage(1);
      }
 
// Establish what we wiil be asking for
//
   XrdCl::Buffer wantStats;
   wantStats.FromString(std::string(Stats));
 
// Establish count and interval
//
   if (!WTime && Count) WTime = 10;
      else if (WTime && !Count) Count = -1;
              else if (!WTime && !Count) Count = 1;
 
// Establish format
//
   if (fType != XrdMpxXml::fmtXML) xP = new XrdMpxXml(fType, nozed, Debug);
 
// Create the file system to query the stats
//
   XrdCl::FileSystem theFS(fsURL);
 
// Perform statistics gathering and display
//
   XrdCl::Buffer *theStats;
   XrdCl::XRootDStatus xStatus;
   while(Count--)
        {xStatus = theFS.Query(XrdCl::QueryCode::Stats, wantStats, theStats);
         if (!xStatus.IsOK()) Fatal(xStatus);
         if (!xP) std::cout <<theStats->GetBuffer() <<std::endl;
            else {int rc, wLen = xP->Format(0, theStats->GetBuffer(), obuff);
                  char *bP = obuff;
                  while(wLen > 0)
                       {do {rc = write(STDOUT_FILENO, bP, wLen);}
                                 while(rc < 0 && errno == EINTR);
                        wLen -= rc; bP += rc;
                       }
                 }
         delete theStats;
         if (WTime) sleep(WTime);
         if (Count) std::cout <<"\n";
        }
 
// All done
//
   return 0;
}

References Debug, Fatal(), XrdMpxXml::fmtCGI, XrdMpxXml::fmtFlat, XrdMpxXml::fmtText, XrdMpxXml::fmtXML, XrdMpxXml::Format(), XrdCl::Buffer::FromString(), XrdCl::Buffer::GetBuffer(), XrdCl::Status::IsOK(), XrdCl::URL::IsValid(), optind, optopt, XrdCl::QueryCode::Stats, Usage(), and write.

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◆ Usage()

void Usage ( int rc )

Definition at line 67 of file XrdQStats.cc.