2 * Copyright (c) 1995-1999, Index Data
3 * See the file LICENSE for details.
4 * Sebastian Hammer, Adam Dickmeiss
7 * Revision 1.20 1999-11-30 13:47:12 adam
8 * Improved installation. Moved header files to include/yaz.
10 * Revision 1.19 1999/08/27 09:40:32 adam
11 * Renamed logf function to yaz_log. Removed VC++ project files.
13 * Revision 1.18 1998/10/28 10:27:00 adam
14 * New functions log_init_file, log_init_level, log_init_prefix.
16 * Revision 1.17 1997/12/09 16:11:02 adam
17 * Assume strerror is defined on Unixes as well. It's standard ANSI.
19 * Revision 1.16 1997/10/06 08:55:07 adam
20 * Changed log_init so that previous (if any) is closed.
22 * Revision 1.15 1997/09/29 07:13:13 adam
25 * Revision 1.14 1997/09/18 08:48:09 adam
26 * Fixed minor bug that caused log_init to ignore filename.
28 * Revision 1.13 1997/09/01 08:54:13 adam
29 * New windows NT/95 port using MSV5.0. Made prefix query handling
30 * thread safe. The function options ignores empty arguments when met.
32 * Revision 1.12 1997/05/01 15:08:14 adam
33 * Added log_mask_str_x routine.
35 * Revision 1.11 1996/02/05 12:24:32 adam
36 * Implemented log_event_{start,end}-functions.
38 * Revision 1.10 1995/12/06 09:51:27 quinn
39 * Fixed the log-prefix buffer - it was too small and the setup code lacked
42 * Revision 1.9 1995/09/29 17:12:34 quinn
45 * Revision 1.8 1995/09/27 15:03:02 quinn
46 * Modified function heads & prototypes.
48 * Revision 1.7 1995/06/19 12:40:18 quinn
51 * Revision 1.6 1995/06/15 15:45:03 quinn
54 * Revision 1.5 1995/05/16 08:51:11 quinn
55 * License, documentation, and memory fixes
57 * Revision 1.4 1995/05/15 11:56:55 quinn
58 * Debuggng & adjustments.
60 * Revision 1.3 1995/04/10 10:23:51 quinn
63 * Revision 1.2 1995/03/31 10:16:55 quinn
66 * Revision 1.1 1995/03/30 10:26:53 quinn
69 * Revision 1.9 1994/12/12 12:09:02 quinn
72 * Revision 1.8 1994/11/22 13:15:38 quinn
75 * Revision 1.7 1994/10/05 10:16:11 quinn
76 * Added xrealloc. Fixed bug in log.
78 * Revision 1.6 1994/10/04 14:02:19 quinn
81 * Revision 1.5 1994/09/28 13:07:41 adam
82 * Implemented log_mask_str.
84 * Revision 1.4 1994/09/27 20:04:13 quinn
87 * Revision 1.3 1994/08/18 08:18:48 quinn
88 * Added prefix to log_init.
90 * Revision 1.2 1994/08/17 14:27:53 quinn
93 * Revision 1.1 1994/08/17 13:23:15 quinn
108 #define HAS_STRERROR 1
113 char *strerror(int n)
115 extern char *sys_errlist[];
116 return sys_errlist[n];
121 static int l_level = LOG_DEFAULT_LEVEL;
122 static FILE *l_file = NULL;
123 static char l_prefix[512] = "log";
130 { LOG_FATAL, "fatal"},
131 { LOG_DEBUG, "debug"},
132 { LOG_WARN, "warn" },
147 void log_init_file (const char *fname)
152 if (!fname || !*fname)
154 if (!(new_file = fopen(fname, "a")))
156 if (l_file != stderr)
160 setvbuf(new_file, 0, _IONBF, 0);
164 void log_init_level (int level)
169 void log_init_prefix (const char *prefix)
171 if (prefix && *prefix)
172 sprintf(l_prefix, "%.512s", prefix);
175 void log_init(int level, const char *prefix, const char *fname)
177 log_init_level (level);
178 log_init_prefix (prefix);
179 log_init_file (fname);
182 static void (*start_hook_func)(int, const char *, void *) = NULL;
183 static void *start_hook_info;
184 static void (*end_hook_func)(int, const char *, void *) = NULL;
185 static void *end_hook_info;
187 void log_event_start (void (*func)(int, const char *, void *), void *info)
189 start_hook_func = func;
190 start_hook_info = info;
193 void log_event_end (void (*func)(int, const char *, void *), void *info)
195 end_hook_func = func;
196 end_hook_info = info;
199 void yaz_log(int level, const char *fmt, ...)
202 char buf[4096], flags[1024];
209 if (!(level & l_level))
214 for (i = 0; level && mask_names[i].name; i++)
215 if (mask_names[i].mask & level)
217 if (*mask_names[i].name)
218 sprintf(flags + strlen(flags), "[%s]", mask_names[i].name);
219 level -= mask_names[i].mask;
222 vsprintf(buf, fmt, ap);
223 if (o_level & LOG_ERRNO)
224 sprintf(buf + strlen(buf), " [%s]", strerror(errno));
226 (*start_hook_func)(o_level, buf, start_hook_info);
228 tim = localtime(&ti);
229 strftime(tbuf, 50, "%H:%M:%S-%d/%m", tim);
230 fprintf(l_file, "%s: %s: %s %s\n", tbuf, l_prefix, flags, buf);
233 (*end_hook_func)(o_level, buf, end_hook_info);
236 int log_mask_str (const char *str)
238 return log_mask_str_x (str, LOG_DEFAULT_LEVEL);
241 int log_mask_str_x (const char *str, int level)
248 for (p = str; *p && *p != ','; p++)
250 if (*str == '-' || isdigit(*str))
253 for (i = 0; mask_names[i].name; i++)
254 if (strlen (mask_names[i].name) == (size_t) (p-str) &&
255 memcmp (mask_names[i].name, str, p-str) == 0)
257 if (mask_names[i].mask)
258 level |= mask_names[i].mask;