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greg |
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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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} |
