src/critical_log.c

   1 /*
   2  * Copyright 2012  Samsung Electronics Co., Ltd
   3  *
   4  * Licensed under the Flora License, Version 1.0 (the "License");
   5  * you may not use this file except in compliance with the License.
   6  * You may obtain a copy of the License at
   7  *
   8  * http://www.tizenopensource.org/license
   9  *
  10  * Unless required by applicable law or agreed to in writing, software
  11  * distributed under the License is distributed on an "AS IS" BASIS,
  12  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  13  * See the License for the specific language governing permissions and
  14  * limitations under the License.
  15  */
  16
  17 #include <stdio.h>
  18 #include <stdarg.h>
  19 #include <stdlib.h>
  20 #include <sys/time.h>
  21 #include <errno.h>
  22 #include <string.h>
  23 #include <libgen.h>
  24 #include <sys/types.h>
  25 #include <unistd.h>
  26
  27 #include <dlog.h>
  28 #include <Eina.h>
  29
  30 #include "conf.h"
  31 #include "debug.h"
  32 #include "util.h"
  33 #include "critical_log.h"
  34
  35 static struct {
  36         FILE *fp;
  37         int file_id;
  38         int nr_of_lines;
  39         char *filename;
  40 } s_info = {
  41         .fp = NULL,
  42         .file_id = 0,
  43         .nr_of_lines = 0,
  44         .filename = NULL,
  45 };
  46
  47
  48
  49 HAPI int critical_log(const char *func, int line, const char *fmt, ...)
  50 {
  51         va_list ap;
  52         int ret;
  53         struct timeval tv;
  54
  55         if (!s_info.fp)
  56                 return -EIO;
  57
  58         if (gettimeofday(&tv, NULL) < 0) {
  59                 tv.tv_sec = 0;
  60                 tv.tv_usec = 0;
  61         }
  62
  63         fprintf(s_info.fp, "%d %lu.%lu [%s:%d] ", getpid(), tv.tv_sec, tv.tv_usec, util_basename((char *)func), line);
  64
  65         va_start(ap, fmt);
  66         ret = vfprintf(s_info.fp, fmt, ap);
  67         va_end(ap);
  68
  69         s_info.nr_of_lines++;
  70         if (s_info.nr_of_lines == MAX_LOG_LINE) {
  71                 char *filename;
  72                 int namelen;
  73
  74                 s_info.file_id = (s_info.file_id + 1) % MAX_LOG_FILE;
  75
  76                 namelen = strlen(s_info.filename) + strlen(SLAVE_LOG_PATH) + 20;
  77                 filename = malloc(namelen);
  78                 if (filename) {
  79                         snprintf(filename, namelen, "%s/%d_%s", SLAVE_LOG_PATH, s_info.file_id, s_info.filename);
  80
  81                         if (s_info.fp)
  82                                 fclose(s_info.fp);
  83
  84                         s_info.fp = fopen(filename, "w+");
  85                         if (!s_info.fp)
  86                                 ErrPrint("Failed to open a file: %s\n", filename);
  87
  88                         DbgFree(filename);
  89                 }
  90
  91                 s_info.nr_of_lines = 0;
  92         }
  93         return ret;
  94 }
  95
  96
  97
  98 HAPI int critical_log_init(const char *name)
  99 {
 100         int namelen;
 101         char *filename;
 102
 103         if (s_info.fp)
 104                 return 0;
 105
 106         s_info.filename = strdup(name);
 107         if (!s_info.filename) {
 108                 ErrPrint("Failed to create a log file\n");
 109                 return -ENOMEM;
 110         }
 111
 112         namelen = strlen(name) + strlen(SLAVE_LOG_PATH) + 20;
 113
 114         filename = malloc(namelen);
 115         if (!filename) {
 116                 ErrPrint("Failed to create a log file\n");
 117                 DbgFree(s_info.filename);
 118                 s_info.filename = NULL;
 119                 return -ENOMEM;
 120         }
 121
 122         snprintf(filename, namelen, "%s/%d_%s", SLAVE_LOG_PATH, s_info.file_id, name);
 123
 124         s_info.fp = fopen(filename, "w+");
 125         if (!s_info.fp) {
 126                 ErrPrint("Failed to open log: %s\n", strerror(errno));
 127                 DbgFree(s_info.filename);
 128                 s_info.filename = NULL;
 129                 DbgFree(filename);
 130                 return -EIO;
 131         }
 132
 133         DbgFree(filename);
 134         return 0;
 135 }
 136
 137
 138
 139 HAPI int critical_log_fini(void)
 140 {
 141         if (s_info.filename) {
 142                 DbgFree(s_info.filename);
 143                 s_info.filename = NULL;
 144         }
 145
 146         if (s_info.fp) {
 147                 fclose(s_info.fp);
 148                 s_info.fp = NULL;
 149         }
 150
 151         return 0;
 152 }
 153
 154
 155
 156 /* End of a file */