/*
- * Copyright (C) 1995-2005, Index Data ApS
+ * Copyright (C) 1995-2006, Index Data ApS
* See the file LICENSE for details.
*
- * $Id: log.c,v 1.34 2006-03-24 13:58:43 adam Exp $
+ * $Id: log.c,v 1.41 2006-10-04 07:42:13 adam Exp $
*/
/**
* \file log.c
- * \brief Implements logging utility
+ * \brief Logging utility
*/
#if HAVE_CONFIG_H
#include <pth.h>
#endif
+#include <sys/stat.h>
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#endif
-static int default_log_level() {
+static int default_log_level(void)
+{
char *env = getenv("YAZ_LOG");
if (env != 0)
return yaz_log_mask_str_x(env, YLOG_DEFAULT_LEVEL);
static char l_custom_format[TIMEFORMAT_LEN] = "";
static char *l_actual_format = l_old_default_format;
-/** l_max_size tells when to rotate the log. Default to 1 GB */
-static const int l_def_max_size = 1024*1024*1024;
+/** l_max_size tells when to rotate the log. Default is 1 GB
+ This is almost the same as never, but it saves applications in the
+ case of 2 or 4 GB file size limits..
+ */
static int l_max_size = 1024*1024*1024;
#define MAX_MASK_NAMES 35 /* 32 bits plus a few combo names */
static unsigned int next_log_bit = YLOG_LAST_BIT<<1; /* first dynamic bit */
-static void init_mutex()
+static void init_mutex(void)
{
if (mutex_init_flag)
return;
return f;
}
-void yaz_log_close()
+void yaz_log_close(void)
{
if (yaz_file_type == use_file && yaz_global_log_file)
{
static void rotate_log(const char *cur_fname)
{
- char newname[512];
- strncpy(newname, cur_fname, 509);
- newname[509] = '\0'; /* make sure it is terminated */
- strcat(newname, ".1");
+ int i;
#ifdef WIN32
/* windows can't rename a file if it is open */
fclose(yaz_global_log_file);
yaz_global_log_file = 0;
- MoveFileEx(cur_fname, newname, MOVEFILE_REPLACE_EXISTING);
+#endif
+ for (i = 0; i<9; i++)
+ {
+ char fname_str[FILENAME_MAX];
+ struct stat stat_buf;
+
+ sprintf(fname_str, "%s.%d", cur_fname, i);
+ if (stat(fname_str, &stat_buf) != 0)
+ break;
+ }
+ for (; i >= 0; --i)
+ {
+ char fname_str[2][FILENAME_MAX];
+
+ if (i > 0)
+ sprintf(fname_str[0], "%s.%d", cur_fname, i-1);
+ else
+ sprintf(fname_str[0], "%s", cur_fname);
+ sprintf(fname_str[1], "%s.%d", cur_fname, i);
+#ifdef WIN32
+ MoveFileEx(fname_str[0], fname_str[1], MOVEFILE_REPLACE_EXISTING);
#else
- rename(cur_fname, newname);
+ rename(fname_str[0], fname_str[1]);
#endif
+ }
}
+
void yaz_log_init_level(int level)
{
init_mutex();
- if (l_level < 0) l_level = default_log_level();
+ if (l_level < 0)
+ l_level = default_log_level();
if ( (l_level & YLOG_FLUSH) != (level & YLOG_FLUSH) )
{
l_level = level;
yaz_log_reopen(); /* make sure we set buffering right */
- } else
+ }
+ else
l_level = level;
if (l_level & YLOG_LOGLVL)
{ /* dump the log level bits */
void yaz_log_init_max_size(int mx)
{
- if (mx <0)
- l_max_size = l_def_max_size;
- else
+ if (mx > 0)
l_max_size = mx;
+ else
+ l_max_size = 0;
}
void yaz_log_set_handler(void (*func)(int, const char *, void *), void *info)
end_hook_info = info;
}
-static void yaz_log_open_check(struct tm *tm, int force)
+static void yaz_log_open_check(struct tm *tm, int force, const char *filemode)
{
char new_filename[512];
static char cur_filename[512] = "";
if (force && yaz_file_type == use_file && *cur_filename)
{
yaz_log_close();
- yaz_global_log_file = fopen(cur_filename, "a");
+ yaz_global_log_file = fopen(cur_filename, filemode);
if (l_level < 0) l_level = default_log_level();
if (l_level & YLOG_FLUSH)
setvbuf(yaz_global_log_file, 0, _IONBF, 0);
}
}
-void yaz_log_reopen()
+static void yaz_log_do_reopen(const char *filemode)
{
time_t cur_time = time(0);
#if HAVE_LOCALTIME_R
#else
tm = localtime(&cur_time);
#endif
- yaz_log_open_check(tm, 1);
+ yaz_log_open_check(tm, 1, filemode);
nmem_mutex_leave(log_mutex);
}
+
+void yaz_log_reopen()
+{
+ yaz_log_do_reopen("a");
+}
+
+void yaz_log_trunc()
+{
+ yaz_log_do_reopen("w");
+}
+
+
+
static void yaz_strftime(char *dst, size_t sz,
const char *fmt, const struct tm *tm)
{
DWORD tid = GetCurrentThreadId();
#else
long tid = 0;
+#if YAZ_POSIX_THREADS
+ tid = pthread_self();
+#endif
#endif
memcpy(fmt2, fmt, cp-fmt);
fmt2[cp-fmt] = '\0';
strftime(dst, sz, fmt, tm);
}
-static void yaz_log_to_file(int level, FILE *file, const char *buf)
+static void yaz_log_to_file(int level, const char *log_message)
{
+ FILE *file;
time_t ti = time(0);
- int i;
#if HAVE_LOCALTIME_R
struct tm tm0, *tm = &tm0;
#else
init_mutex();
nmem_mutex_enter(log_mutex);
-
- #if HAVE_LOCALTIME_R
+
+#if HAVE_LOCALTIME_R
localtime_r(&ti, tm);
#else
tm = localtime(&ti);
#endif
- yaz_log_open_check(tm, 0);
+ yaz_log_open_check(tm, 0, "a");
file = yaz_log_file(); /* file may change in yaz_log_open_check */
if (file)
{
char tbuf[TIMEFORMAT_LEN];
char flags[1024];
+ int i;
*flags = '\0';
for (i = 0; level && mask_names[i].name; i++)
yaz_strftime(tbuf, TIMEFORMAT_LEN-1, l_actual_format, tm);
tbuf[TIMEFORMAT_LEN-1] = '\0';
- fprintf(file, "%s %s%s %s%s\n", tbuf, l_prefix, flags, l_prefix2, buf);
+ fprintf(file, "%s %s%s %s%s\n", tbuf, l_prefix, flags, l_prefix2,
+ log_message);
if (l_level & (YLOG_FLUSH|YLOG_DEBUG) )
fflush(file);
}
(*hook_func)(o_level, buf, hook_info);
file = yaz_log_file();
if (file)
- yaz_log_to_file(level, file, buf);
+ yaz_log_to_file(level, buf);
if (end_hook_func)
(*end_hook_func)(o_level, buf, end_hook_info);
}