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/*
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* dmessage.c
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* panlib
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*
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* Debug message reporting routines.
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*
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* Created by gward on Thu May 10 2001.
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* Copyright (c) 2001 Anyhere Software. All rights reserved.
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*
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*/
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <errno.h>
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#include "dmessage.h"
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#define DM_NCLASSES DMCnerr /* number of message classes */
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#define DM_MOSTFLAGS (DMFrecord|DMFlog|DMFstderr|DMFalert)
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char dmessage_buf[DM_BUF_LEN];
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const char * dmessage_class_name[DM_NCLASSES+1] = {
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"assert",
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"memory",
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"system",
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"parameter",
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"resource",
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"data",
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"input",
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"warning",
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"info",
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"trace",
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"none"
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};
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int dmessage_class_flags[DM_NCLASSES+1] = {
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DM_MOSTFLAGS|DMFabort,
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DM_MOSTFLAGS|DMFexit,
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DM_MOSTFLAGS,
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DM_MOSTFLAGS,
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DM_MOSTFLAGS,
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DM_MOSTFLAGS,
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DM_MOSTFLAGS,
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DMFrecord|DMFlog|DMFstderr,
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DMFrecord|DMFlog,
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DMFrecord,
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0
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};
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int dmessage_class_done[DM_NCLASSES];
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const char * dmessage_file[DM_NCLASSES];
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int dmessage_line[DM_NCLASSES];
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const char * dmessage_record[DM_NCLASSES+1];
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DMsgClass dmessage_last_class = DMCnerr;
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FILE * dmessage_logfp = NULL;
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int (*dmessage_call)(DMsgClass cls, const char *msg,
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const char *file, int line) = NULL;
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int (*dmessage_alert)(const char *msg) = NULL;
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void (*dmessage_exit)(int status) = exit;
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void (*dmessage_abort)() = abort;
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#define DM_MAX_RECORD 128
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static char dmessage_mine[DM_NCLASSES][DM_MAX_RECORD];
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/* Report/record message, aborting program if cls is DMCassert */
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int
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dmessage(DMsgClass cls, const char *msg, const char *file, int line)
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{
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int todo;
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const char *cp;
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if ((cls < 0) | (cls >= DMCnerr))
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return 0;
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todo = dmessage_class_flags[cls];
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if (msg == NULL || !*msg)
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msg = "(missing message)";
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if (file != NULL && ((cp = strrchr(file, '/')) != NULL ||
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(cp = strrchr(file, '\\')) != NULL))
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file = cp+1; /* use tail */
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dmessage_file[cls] = file; /* remember call */
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dmessage_line[cls] = line;
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dmessage_class_done[cls] = todo;
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if (cls < dmessage_last_class) /* mark class */
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dmessage_last_class = cls;
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if (dmessage_call != NULL) /* notify callback */
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todo &= ~(*dmessage_call)(cls, msg, file, line);
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if (todo & DMFrecord) { /* save message */
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if (msg != dmessage_buf && strlen(msg) >= DM_MAX_RECORD) {
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dmessage_record[cls] = msg;
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} else {
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strncpy(dmessage_mine[cls], msg, DM_MAX_RECORD-1);
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dmessage_record[cls] = dmessage_mine[cls];
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}
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todo &= ~DMFrecord;
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}
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if (todo & DMFstderr) { /* send to stderr */
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if (file != NULL)
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fprintf(stderr, "%s@%d>%s: %s", file, line,
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dmessage_class_name[cls], msg);
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else
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fprintf(stderr, "%s: %s",
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dmessage_class_name[cls], msg);
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if ((cls == DMCsystem) | (cls == DMCresource) && errno) {
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fputs(": ", stderr);
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perror(NULL);
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} else
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fputc('\n', stderr);
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if (fflush(stderr) != EOF) {
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todo &= ~DMFstderr;
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if (dmessage_logfp == stderr)
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todo &= ~DMFlog;
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}
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}
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if (todo & DMFlog && dmessage_logfp != NULL) { /* log to file */
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if (file != NULL)
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fprintf(dmessage_logfp, "%s@%d>%s: %s\n", file, line,
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dmessage_class_name[cls], msg);
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else
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fprintf(dmessage_logfp, "%s: %s\n",
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dmessage_class_name[cls], msg);
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if (fflush(dmessage_logfp) != EOF)
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todo &= ~DMFlog;
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}
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if (todo & DMFalert && dmessage_alert != NULL) /* alert user */
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if ((*dmessage_alert)(msg))
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todo &= ~DMFalert;
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if (todo & DMFabort && dmessage_abort != NULL) {/* abort */
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(*dmessage_abort)();
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todo &= ~DMFabort;
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}
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if (todo & DMFexit && dmessage_exit != NULL) { /* exit */
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(*dmessage_exit)(1);
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todo &= ~DMFexit;
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}
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/* say what was done */
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return dmessage_class_done[cls] = (dmessage_class_flags[cls] & ~todo);
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}
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