| 1 | //#---------------------------------------------------------------------------
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| 2 | //# PKSmsg.h: Message handling for the PKSIO classes.
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| 3 | //#---------------------------------------------------------------------------
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| 4 | //# livedata - processing pipeline for single-dish, multibeam spectral data.
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| 5 | //# Copyright (C) 2008-2009, Australia Telescope National Facility, CSIRO
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| 6 | //#
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| 7 | //# This file is part of livedata.
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| 8 | //#
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| 9 | //# livedata is free software: you can redistribute it and/or modify it under
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| 10 | //# the terms of the GNU General Public License as published by the Free
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| 11 | //# Software Foundation, either version 3 of the License, or (at your option)
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| 12 | //# any later version.
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| 13 | //#
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| 14 | //# livedata is distributed in the hope that it will be useful, but WITHOUT
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| 15 | //# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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| 16 | //# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
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| 17 | //# more details.
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| 18 | //#
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| 19 | //# You should have received a copy of the GNU General Public License along
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| 20 | //# with livedata.  If not, see <http://www.gnu.org/licenses/>.
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| 21 | //#
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| 22 | //# Correspondence concerning livedata may be directed to:
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| 23 | //#        Internet email: mcalabre@atnf.csiro.au
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| 24 | //#        Postal address: Dr. Mark Calabretta
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| 25 | //#                        Australia Telescope National Facility, CSIRO
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| 26 | //#                        PO Box 76
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| 27 | //#                        Epping NSW 1710
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| 28 | //#                        AUSTRALIA
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| 29 | //#
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| 30 | //# http://www.atnf.csiro.au/computing/software/livedata.html
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| 31 | //# $Id: PKSmsg.h,v 1.3 2009-09-29 07:33:38 cal103 Exp $
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| 32 | //#---------------------------------------------------------------------------
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| 33 | //# Original: 2008/09/18, Mark Calabretta, ATNF
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| 34 | //#---------------------------------------------------------------------------
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| 35 | 
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| 36 | #ifndef ATNF_PKSMSG_H
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| 37 | #define ATNF_PKSMSG_H
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| 38 | 
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| 39 | #include <casa/stdio.h>
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| 40 | 
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| 41 | using namespace std;
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| 42 | 
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| 43 | // <summary>
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| 44 | // Message handling for the PKSIO classes.
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| 45 | // </summary>
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| 46 | 
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| 47 | class PKSmsg
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| 48 | {
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| 49 |   public:
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| 50 |     // Constructor.
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| 51 |     PKSmsg();
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| 52 | 
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| 53 |     // Destructor.
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| 54 |     virtual ~PKSmsg();
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| 55 | 
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| 56 |     // Set message disposition.  If fd is non-zero messages will be written
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| 57 |     // to that file descriptor, else stored for retrieval by getMsg().
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| 58 |     virtual int setMsg(
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| 59 |         FILE *fd = 0x0);
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| 60 | 
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| 61 |     // Log a message.
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| 62 |     virtual void logMsg(const char *msg = 0x0);
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| 63 | 
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| 64 |     // Get a message string, or 0x0 if there is none.  The null-terminated
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| 65 |     // message string may contain embedded newline characters and will have
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| 66 |     // a trailing newline.
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| 67 |     const char *getMsg();
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| 68 | 
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| 69 |     // Get the next group of messages by type: ERROR, WARNING, or otherwise.
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| 70 |     // The null-terminated message string may contain embedded newline
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| 71 |     // characters but will NOT have a trailing newline.  Call this repeatedly
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| 72 |     // to unwind the message stack (otherwise messages may be lost).
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| 73 |     enum msgType {NORMAL, WARNING, ERROR};
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| 74 |     const char *getMsg(msgType &type);
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| 75 | 
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| 76 |     // Clear the message buffer.
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| 77 |     void clearMsg(void);
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| 78 | 
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| 79 |   protected:
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| 80 |     // Initialize messaging.
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| 81 |     void initMsg();
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| 82 | 
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| 83 |   private:
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| 84 |     // For messaging.
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| 85 |     char *cMsgBuff, *cMsgIdx;
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| 86 |     int   cMsgLen, cNMsg;
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| 87 |     FILE *cMsgFD;
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| 88 | };
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| 89 | 
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| 90 | #endif
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