/******************************************************************************/ /* */ /* X r d C m s T a l k . c c */ /* */ /* (c) 2007 by the Board of Trustees of the Leland Stanford, Jr., University */ /* All Rights Reserved */ /* Produced by Andrew Hanushevsky for Stanford University under contract */ /* DE-AC02-76-SFO0515 with the Department of Energy */ /* */ /* This file is part of the XRootD software suite. */ /* */ /* XRootD is free software: you can redistribute it and/or modify it under */ /* the terms of the GNU Lesser General Public License as published by the */ /* Free Software Foundation, either version 3 of the License, or (at your */ /* option) any later version. */ /* */ /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ /* License for more details. */ /* */ /* You should have received a copy of the GNU Lesser General Public License */ /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ /* COPYING (GPL license). If not, see . */ /* */ /* The copyright holder's institutional names and contributor's names may not */ /* be used to endorse or promote products derived from this software without */ /* specific prior written permission of the institution or contributor. */ /******************************************************************************/ #include #include #include #include "XProtocol/YProtocol.hh" #include "Xrd/XrdLink.hh" #include "XrdCms/XrdCmsTalk.hh" using namespace XrdCms; /******************************************************************************/ /* A t t e n d */ /******************************************************************************/ const char *XrdCmsTalk::Attend(XrdLink *Link, XrdCms::CmsRRHdr &Hdr, char *buff, int blen, int &rlen, int TimeOut) { // First obtain the complete header // if (Link->Recv((char *)&Hdr, sizeof(Hdr), TimeOut) != sizeof(Hdr)) return "header not sent"; // Decode the length and make sure it fits in the buffer // rlen = static_cast(ntohs(Hdr.datalen)); if (rlen > blen) return "data too long"; // Get the actual data // if (Link->Recv(buff,rlen,TimeOut) != rlen) return "data not received"; // All done // return 0; } /******************************************************************************/ /* C o m p l a i n */ /******************************************************************************/ int XrdCmsTalk::Complain(XrdLink *Link, int ecode, const char *msg) { static const int xNum = 2; struct iovec Liov[xNum]; int mlen = strlen(msg)+1; CmsResponse LEResp={{0, kYR_error, 0, 0}, htonl((unsigned int)ecode)}; // Fill out header and iovector // LEResp.Hdr.datalen = htons(static_cast(mlen+sizeof(LEResp.Val))); Liov[0].iov_base = (char *)&LEResp; Liov[0].iov_len = sizeof(LEResp); Liov[1].iov_base = (char *)msg; Liov[1].iov_len = mlen; // Send off the data // Link->Send(Liov, xNum); return 0; } /******************************************************************************/ /* R e q u e s t */ /******************************************************************************/ const char *XrdCmsTalk::Request(XrdLink *Link, XrdCms::CmsRRHdr &Hdr, char *buff, int blen) { struct iovec ioV[2] = {{(char *)&Hdr, sizeof(Hdr)}, {(char *)buff, (size_t)blen}}; Hdr.datalen = htons(static_cast(blen)); // Send the actual data // if (Link->Send(ioV, 2) < 0) return "request not sent"; return 0; } /******************************************************************************/ /* R e s p o n d */ /******************************************************************************/ const char *XrdCmsTalk::Respond(XrdLink *Link, XrdCms::CmsRspCode rcode, char *buff, int blen) { static const unsigned short ovhd = sizeof(kXR_unt32); CmsResponse Resp = {{0, (kXR_char)rcode, 0, htons(static_cast(blen+ovhd))}, 0}; struct iovec ioV[2] = {{(char *)&Resp, sizeof(Resp)}, { buff, (size_t)blen}}; // Send the actual data // if (Link->Send(ioV, 2) < 0) return "response not sent"; return 0; }