util/log.h

   1 /*
   2  * Copyright (c) 1995, 1996, 1997 Kungliga Tekniska Högskolan
   3  * (Royal Institute of Technology, Stockholm, Sweden).
   4  * All rights reserved.
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions
   8  * are met:
   9  *
  10  * 1. Redistributions of source code must retain the above copyright
  11  *    notice, this list of conditions and the following disclaimer.
  12  *
  13  * 2. Redistributions in binary form must reproduce the above copyright
  14  *    notice, this list of conditions and the following disclaimer in the
  15  *    documentation and/or other materials provided with the distribution.
  16  *
  17  * 3. Neither the name of the Institute nor the names of its contributors
  18  *    may be used to endorse or promote products derived from this software
  19  *    without specific prior written permission.
  20  *
  21  * THIS SOFTWARE IS PROVIDED BY THE INSTITUTE AND CONTRIBUTORS ``AS IS'' AND
  22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE INSTITUTE OR CONTRIBUTORS BE LIABLE
  25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  31  * SUCH DAMAGE.
  32  */
  33
  34 /* $Id$ */
  35
  36 #ifndef _ARLAUTIL_LOG_H
  37 #define _ARLAUTIL_LOG_H 1
  38
  39 #include <stdarg.h>
  40 #include <parse_units.h>
  41
  42 #if !defined(__GNUC__) && !defined(__attribute__)
  43 #define __attribute__(x)
  44 #endif
  45
  46 typedef enum {
  47     LOG_CPU_USAGE = 1
  48 } log_flags;
  49
  50 typedef struct log_method Log_method;
  51 typedef struct log_unit Log_unit;
  52
  53 /*
  54  * Functions for handling logging
  55  */
  56
  57 Log_method *log_open (const char *progname, char *fname);
  58 /* Starting logging to `fname'.  Label all messages as coming from
  59  * `progname'. */
  60
  61 void log_close (Log_method *logm);
  62
  63 Log_unit *log_unit_init (Log_method *method, const char *name,
  64                          struct units *lognames,
  65                          unsigned long default_mask);
  66
  67 void log_unit_free (Log_method *method, Log_unit *logu);
  68
  69 log_flags log_setflags(Log_method *logm, log_flags flags);
  70 log_flags log_getflags(Log_method *logm);
  71
  72 void log_log (Log_unit *logu, unsigned level, const char *fmt, ...)
  73 __attribute__((format (printf, 3, 4)))
  74 ;
  75
  76 void log_vlog(Log_unit *logu, unsigned level, const char *fmt, va_list args)
  77 __attribute__((format (printf, 3, 0)))
  78 ;
  79
  80 unsigned log_get_mask (Log_unit *logu);
  81
  82 void log_set_mask (Log_unit *logu, unsigned mask);
  83
  84 void log_set_mask_str (Log_method *method, Log_unit *default_unit,
  85                        const char *str);
  86
  87 size_t log_mask2str (Log_method *method, Log_unit *unit, char *buf, size_t sz);
  88
  89 #endif /* _ARLAUTIL_LOG_H */