00001 #ifndef __SYS_LOGGING_H__ 00002 #define __SYS_LOGGING_H__ 00003 /******************************************************************************/ 00004 /* */ 00005 /* X r d S y s L o g g i n g . h h */ 00006 /* */ 00007 /*(c) 2016 by the Board of Trustees of the Leland Stanford, Jr., University */ 00008 /*Produced by Andrew Hanushevsky for Stanford University under contract */ 00009 /* DE-AC02-76-SFO0515 with the Deprtment of Energy */ 00010 /* */ 00011 /* This file is part of the XRootD software suite. */ 00012 /* */ 00013 /* XRootD is free software: you can redistribute it and/or modify it under */ 00014 /* the terms of the GNU Lesser General Public License as published by the */ 00015 /* Free Software Foundation, either version 3 of the License, or (at your */ 00016 /* option) any later version. */ 00017 /* */ 00018 /* XRootD is distributed in the hope that it will be useful, but WITHOUT */ 00019 /* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or */ 00020 /* FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public */ 00021 /* License for more details. */ 00022 /* */ 00023 /* You should have received a copy of the GNU Lesser General Public License */ 00024 /* along with XRootD in a file called COPYING.LESSER (LGPL license) and file */ 00025 /* COPYING (GPL license). If not, see <http://www.gnu.org/licenses/>. */ 00026 /* */ 00027 /* The copyright holder's institutional names and contributor's names may not */ 00028 /* be used to endorse or promote products derived from this software without */ 00029 /* specific prior written permission of the institution or contributor. */ 00030 /******************************************************************************/ 00031 00032 #include <limits.h> 00033 #include <stdlib.h> 00034 #include <sys/time.h> 00035 #include <sys/uio.h> 00036 00037 #include "XrdSys/XrdSysLogPI.hh" 00038 #include "XrdSys/XrdSysPthread.hh" 00039 00040 //----------------------------------------------------------------------------- 00043 //----------------------------------------------------------------------------- 00044 00045 class XrdSysLogger; 00046 00047 class XrdSysLogging 00048 { 00049 public: 00050 00051 //----------------------------------------------------------------------------- 00054 //----------------------------------------------------------------------------- 00055 00056 XrdSysLogging() {} 00057 00058 ~XrdSysLogging() {} 00059 00060 //----------------------------------------------------------------------------- 00062 //----------------------------------------------------------------------------- 00063 00064 struct Parms 00065 {const char *logfn; 00066 XrdSysLogPI_t logpi; 00067 int bufsz; 00068 int keepV; 00069 bool hiRes; 00070 Parms() : logfn(0), logpi(0), bufsz(-1), keepV(0), hiRes(false) {} 00071 ~Parms() {} 00072 }; 00073 00074 //----------------------------------------------------------------------------- 00081 //----------------------------------------------------------------------------- 00082 00083 static bool Configure(XrdSysLogger &logr, Parms &parms); 00084 00085 //----------------------------------------------------------------------------- 00095 //----------------------------------------------------------------------------- 00096 00097 static bool Forward(struct timeval mtime, unsigned long tID, 00098 struct iovec *iov, int iovcnt); 00099 00100 private: 00101 struct MsgBuff 00102 {struct timeval msgtod; // time message was generated 00103 unsigned long tID; // Thread ID issuing message 00104 unsigned int next; // Offset to next message, 0 if none 00105 unsigned short buffsz; // In doublewords (max is 512K-8) 00106 short msglen; // Len of msg text (max 32K-1) if <0 ->lost msgs 00107 // char msgtxt; // Text follows the message header 00108 }; 00109 static const int msgOff = sizeof(MsgBuff); 00110 static const int mbDwords = (sizeof(MsgBuff)+7)/8*8; 00111 static const int maxMsgLen = SHRT_MAX; 00112 00113 static int CopyTrunc(char *mbuff, struct iovec *iov, int iovcnt); 00114 static bool EMsg(XrdSysLogger &logr, const char *msg); 00115 static MsgBuff *getMsg(char **msgTxt, bool cont); 00116 static void *Send2PI(void *arg); 00117 00118 static pthread_t lpiTID; 00119 static bool lclOut; 00120 static bool rmtOut; 00121 }; 00122 #endif