syscall_gettaskxid-oldproc.hc (1334B)
1 // $Id$ --*- c -*-- 2 3 // Copyright (C) 2004 Enrico Scholz <enrico.scholz@informatik.tu-chemnitz.de> 4 // 5 // This program is free software; you can redistribute it and/or modify 6 // it under the terms of the GNU General Public License as published by 7 // the Free Software Foundation; version 2 of the License. 8 // 9 // This program is distributed in the hope that it will be useful, 10 // but WITHOUT ANY WARRANTY; without even the implied warranty of 11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 12 // GNU General Public License for more details. 13 // 14 // You should have received a copy of the GNU General Public License 15 // along with this program; if not, write to the Free Software 16 // Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. 17 18 19 #ifdef HAVE_CONFIG_H 20 # include <config.h> 21 #endif 22 23 #include "utils-legacy.h" 24 25 static xid_t 26 getctx_legacy_internal(pid_t pid) 27 { 28 size_t bufsize = utilvserver_getProcEntryBufsize(); 29 char buf[bufsize]; 30 char *pos = 0; 31 32 pos = utilvserver_getProcEntry(pid, "\ns_context: ", buf, bufsize); 33 34 if (pos!=0) return atoi(pos); 35 else return VC_NOCTX; 36 } 37 38 static inline ALWAYSINLINE xid_t 39 vc_get_task_xid_oldproc(pid_t pid) 40 { 41 xid_t res; 42 do { 43 res = getctx_legacy_internal(pid); 44 } while (res==VC_NOCTX && errno==EAGAIN); 45 46 return res; 47 }