-/*
- * Copyright (C) 1995-2007, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) Index Data
* See the file LICENSE for details.
- *
- * $Id: log.c,v 1.51 2007-05-06 20:12:20 adam Exp $
*/
/**
#ifdef WIN32
#include <windows.h>
+#include <sys/stat.h>
#endif
+#if HAVE_SYS_STAT_H
#include <sys/stat.h>
+#endif
#include <stdio.h>
#include <stdlib.h>
-#include <ctype.h>
#include <string.h>
#include <stdarg.h>
#include <errno.h>
#include <time.h>
-#include <yaz/nmem.h>
+#include <yaz/yaz-iconv.h>
+#include <yaz/errno.h>
+#include <yaz/thread_id.h>
#include <yaz/log.h>
+#include <yaz/mutex.h>
#include <yaz/snprintf.h>
#include <yaz/xmalloc.h>
-
-#define HAS_STRERROR 1
-
-
-#if HAS_STRERROR
-
-#else
-char *strerror(int n)
-{
- extern char *sys_errlist[];
- return sys_errlist[n];
-}
-
+#if YAZ_POSIX_THREADS
+#include <pthread.h>
#endif
-
static int l_level = YLOG_DEFAULT_LEVEL;
enum l_file_type { use_stderr, use_none, use_file };
-static enum l_file_type yaz_file_type = use_stderr;
-static FILE *yaz_global_log_file = NULL;
+
+struct {
+ enum l_file_type type;
+ FILE *log_file;
+ char l_prefix[512];
+ char l_prefix2[512];
+ char l_fname[512];
+} yaz_log_info = {
+ use_stderr, 0, "", "", ""
+};
static void (*start_hook_func)(int, const char *, void *) = NULL;
static void *start_hook_info;
static void (*hook_func)(int, const char *, void *) = NULL;
static void *hook_info;
-static char l_prefix[512] = "";
-static char l_prefix2[512] = "";
-static char l_fname[512] = "";
-
-
static char l_old_default_format[] = "%H:%M:%S-%d/%m";
static char l_new_default_format[] = "%Y%m%d-%H%M%S";
#define TIMEFORMAT_LEN 50
+#define TID_LEN 30
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 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..
+/** l_max_size tells when to rotate the log. The default value is
+ 0 which means DISABLED. This is to be preffered if YAZ runs
+ as a server using logrotate etc.
+ A positive size specifies the file size in bytes when a log rotate
+ will occur. Note that in order for this to work YAZ must have
+ permissions to do so.
*/
-static int l_max_size = 1024*1024*1024;
+static int l_max_size = 0;
#define MAX_MASK_NAMES 35 /* 32 bits plus a few combo names */
static struct {
{ YLOG_LOG, "log" },
{ YLOG_ERRNO, ""},
{ YLOG_MALLOC, "malloc"},
- { YLOG_APP, "app" },
+ { YLOG_TID, "tid" },
+ { YLOG_APP, "app" },
{ YLOG_NOTIME, "notime" },
- { YLOG_APP2, "app2" },
+ { YLOG_APP2, "app2" },
{ YLOG_APP3, "app3" },
{ YLOG_ALL, "all" },
{ YLOG_FLUSH, "flush" },
- { YLOG_LOGLVL, "loglevel" },
+ { YLOG_LOGLVL, "loglevel" },
{ 0, "none" },
{ 0, NULL }
/* the rest will be filled in if the user defines dynamic modules*/
-};
+};
static unsigned int next_log_bit = YLOG_LAST_BIT<<1; /* first dynamic bit */
-static void internal_log_init(void)
+static YAZ_MUTEX log_mutex = 0;
+
+static void yaz_log_lock(void)
{
- static int mutex_init_flag = 0; /* not yet initialized */
- char *env;
+ yaz_mutex_enter(log_mutex);
+}
- if (mutex_init_flag)
- return;
- mutex_init_flag = 1; /* here, 'cause nmem_mutex_create may call yaz_log */
+static void yaz_log_unlock(void)
+{
+ yaz_mutex_leave(log_mutex);
+}
+
+void yaz_log_init_globals(void)
+{
+ char *env;
+ if (log_mutex == 0)
+ yaz_mutex_create(&log_mutex);
+#if YAZ_POSIX_THREADS
+ pthread_atfork(yaz_log_lock, yaz_log_unlock, yaz_log_unlock);
+#endif
env = getenv("YAZ_LOG");
if (env)
l_level = yaz_log_mask_str_x(env, l_level);
}
-
FILE *yaz_log_file(void)
{
FILE *f = 0;
- switch(yaz_file_type)
+ switch (yaz_log_info.type)
{
case use_stderr: f = stderr; break;
case use_none: f = 0; break;
- case use_file: f = yaz_global_log_file; break;
+ case use_file: f = yaz_log_info.log_file; break;
}
return f;
}
void yaz_log_close(void)
{
- if (yaz_file_type == use_file && yaz_global_log_file)
+ if (yaz_log_info.type == use_file && yaz_log_info.log_file)
{
- fclose(yaz_global_log_file);
- yaz_global_log_file = 0;
+ fclose(yaz_log_info.log_file);
+ yaz_log_info.log_file = 0;
}
}
void yaz_log_init_file(const char *fname)
{
- internal_log_init();
+ yaz_init_globals();
yaz_log_close();
if (fname)
{
if (*fname == '\0')
- yaz_file_type = use_stderr; /* empty name; use stderr */
+ yaz_log_info.type = use_stderr; /* empty name; use stderr */
else
- yaz_file_type = use_file;
- strncpy(l_fname, fname, sizeof(l_fname)-1);
- l_fname[sizeof(l_fname)-1] = '\0';
+ yaz_log_info.type = use_file;
+ strncpy(yaz_log_info.l_fname, fname, sizeof(yaz_log_info.l_fname)-1);
+ yaz_log_info.l_fname[sizeof(yaz_log_info.l_fname)-1] = '\0';
}
else
{
- yaz_file_type = use_none; /* NULL name; use no file at all */
- l_fname[0] = '\0';
+ yaz_log_info.type = use_none; /* NULL name; use no file at all */
+ yaz_log_info.l_fname[0] = '\0';
}
yaz_log_reopen();
}
char fname_str[FILENAME_MAX];
struct stat stat_buf;
- sprintf(fname_str, "%s.%d", cur_fname, i);
+ yaz_snprintf(fname_str, sizeof(fname_str), "%s.%d", cur_fname, i);
if (stat(fname_str, &stat_buf) != 0)
break;
}
char fname_str[2][FILENAME_MAX];
if (i > 0)
- sprintf(fname_str[0], "%s.%d", cur_fname, i-1);
+ yaz_snprintf(fname_str[0], sizeof(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);
+ yaz_snprintf(fname_str[0], sizeof(fname_str[0]),
+ "%s", cur_fname);
+ yaz_snprintf(fname_str[1], sizeof(fname_str[1]),
+ "%s.%d", cur_fname, i);
#ifdef WIN32
MoveFileEx(fname_str[0], fname_str[1], MOVEFILE_REPLACE_EXISTING);
#else
void yaz_log_init_level(int level)
{
- internal_log_init();
+ yaz_init_globals();
if ( (l_level & YLOG_FLUSH) != (level & YLOG_FLUSH) )
{
l_level = level;
yaz_log_reopen(); /* make sure we set buffering right */
- }
+ }
else
l_level = level;
void yaz_log_init_prefix(const char *prefix)
{
if (prefix && *prefix)
- sprintf(l_prefix, "%.511s ", prefix);
+ yaz_snprintf(yaz_log_info.l_prefix,
+ sizeof(yaz_log_info.l_prefix), "%s ", prefix);
else
- *l_prefix = 0;
+ *yaz_log_info.l_prefix = 0;
}
void yaz_log_init_prefix2(const char *prefix)
{
if (prefix && *prefix)
- sprintf(l_prefix2, "%.511s ", prefix);
+ yaz_snprintf(yaz_log_info.l_prefix2,
+ sizeof(yaz_log_info.l_prefix2), "%s ", prefix);
else
- *l_prefix2 = 0;
+ *yaz_log_info.l_prefix2 = 0;
}
void yaz_log_init(int level, const char *prefix, const char *fname)
{
- internal_log_init();
+ yaz_init_globals();
yaz_log_init_level(level);
yaz_log_init_prefix(prefix);
if (fname && *fname)
void log_event_start(void (*func)(int, const char *, void *), void *info)
{
- start_hook_func = func;
- start_hook_info = info;
+ start_hook_func = func;
+ start_hook_info = info;
}
void log_event_end(void (*func)(int, const char *, void *), void *info)
{
- end_hook_func = func;
- end_hook_info = info;
+ end_hook_func = func;
+ end_hook_info = info;
}
static void yaz_log_open_check(struct tm *tm, int force, const char *filemode)
char new_filename[512];
static char cur_filename[512] = "";
- if (yaz_file_type != use_file)
+ if (yaz_log_info.type != use_file)
return;
- if (l_fname && *l_fname)
+ if (*yaz_log_info.l_fname)
{
- strftime(new_filename, sizeof(new_filename)-1, l_fname, tm);
+ strftime(new_filename, sizeof(new_filename)-1, yaz_log_info.l_fname,
+ tm);
if (strcmp(new_filename, cur_filename))
{
strcpy(cur_filename, new_filename);
}
}
- if (l_max_size > 0 && yaz_global_log_file)
+ if (l_max_size > 0 && yaz_log_info.log_file)
{
- long flen = ftell(yaz_global_log_file);
+ long flen = ftell(yaz_log_info.log_file);
if (flen > l_max_size)
{
rotate_log(cur_filename);
if (new_file)
{
yaz_log_close();
- yaz_global_log_file = new_file;
+ yaz_log_info.log_file = new_file;
if (l_level & YLOG_FLUSH)
- setvbuf(yaz_global_log_file, 0, _IONBF, 0);
+ setvbuf(yaz_log_info.log_file, 0, _IONBF, 0);
}
else
{
struct tm *tm;
#endif
+ yaz_log_lock();
#if HAVE_LOCALTIME_R
localtime_r(&cur_time, tm);
#else
tm = localtime(&cur_time);
#endif
yaz_log_open_check(tm, 1, filemode);
+ yaz_log_unlock();
}
{
strftime(dst, sz, fmt, tm);
}
-
+
static void yaz_log_to_file(int level, const char *log_message)
{
FILE *file;
struct tm *tm;
#endif
- internal_log_init();
-
+ yaz_log_lock();
#if HAVE_LOCALTIME_R
localtime_r(&ti, tm);
#else
tm = localtime(&ti);
#endif
-
- yaz_log_open_check(tm, 0, "a");
+
+ 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 tid[TID_LEN];
char flags[1024];
int i;
-
+
*flags = '\0';
for (i = 0; level && mask_names[i].name; i++)
if ( mask_names[i].mask & level)
{
- if (*mask_names[i].name && mask_names[i].mask &&
+ if (*mask_names[i].name && mask_names[i].mask &&
mask_names[i].mask != YLOG_ALL)
{
- sprintf(flags + strlen(flags), "[%s]", mask_names[i].name);
+ if (strlen(flags) + strlen(mask_names[i].name)
+ < sizeof(flags) - 4)
+ {
+ strcat(flags, "[");
+ strcat(flags, mask_names[i].name);
+ strcat(flags, "]");
+ }
level &= ~mask_names[i].mask;
}
}
-
+
tbuf[0] = '\0';
if (!(l_level & YLOG_NOTIME))
{
}
if (tbuf[0])
strcat(tbuf, " ");
- fprintf(file, "%s%s%s %s%s\n", tbuf, l_prefix, flags, l_prefix2,
+ tid[0] = '\0';
+
+ if (l_level & YLOG_TID)
+ {
+ yaz_thread_id_cstr(tid, sizeof(tid)-1);
+ if (tid[0])
+ strcat(tid, " ");
+ }
+
+ fprintf(file, "%s%s%s%s %s%s\n", tbuf, yaz_log_info.l_prefix,
+ tid, flags, yaz_log_info.l_prefix2,
log_message);
if (l_level & YLOG_FLUSH)
fflush(file);
}
+ yaz_log_unlock();
}
void yaz_log(int level, const char *fmt, ...)
FILE *file;
int o_level = level;
- internal_log_init();
+ yaz_init_globals();
if (!(level & l_level))
return;
va_start(ap, fmt);
if (o_level & YLOG_ERRNO)
{
- strcat(buf, " [");
- yaz_strerror(buf+strlen(buf), 2048);
- strcat(buf, "]");
+ size_t remain = sizeof(buf) - strlen(buf);
+ if (remain > 100) /* reasonable minimum space for error */
+ {
+ strcat(buf, " [");
+ yaz_strerror(buf+strlen(buf), remain-5); /* 5 due to extra [] */
+ strcat(buf, "]");
+ }
}
va_end (ap);
if (start_hook_func)
void yaz_log_time_format(const char *fmt)
{
- if ( !fmt || !*fmt)
+ if ( !fmt || !*fmt)
{ /* no format, default to new */
l_actual_format = l_new_default_format;
- return;
+ return;
}
if (0==strcmp(fmt, "old"))
{ /* force the old format */
l_actual_format = l_old_default_format;
- return;
+ return;
}
/* else use custom format */
strncpy(l_custom_format, fmt, TIMEFORMAT_LEN-1);
}
/** cleans a loglevel name from leading paths and suffixes */
-static char *clean_name(const char *name, int len, char *namebuf, int buflen)
+static char *clean_name(const char *name, size_t len, char *namebuf, size_t buflen)
{
char *p = namebuf;
char *start = namebuf;
if (buflen <= len)
- len = buflen-1;
+ len = buflen-1;
strncpy(namebuf, name, len);
namebuf[len] = '\0';
while ((p = strchr(start, '/')))
static int define_module_bit(const char *name)
{
- int i;
+ size_t i;
for (i = 0; mask_names[i].name; i++)
if (0 == strcmp(mask_names[i].name, name))
{
return mask_names[i].mask;
}
- if ( (i>=MAX_MASK_NAMES) || (next_log_bit & (1<<31) ))
+ if ( (i>=MAX_MASK_NAMES) || (next_log_bit & (1U<<31) ))
{
yaz_log(YLOG_WARN, "No more log bits left, not logging '%s'", name);
return 0;
}
- mask_names[i].mask = next_log_bit;
+ mask_names[i].mask = (int) next_log_bit; /* next_log_bit can hold int */
next_log_bit = next_log_bit<<1;
mask_names[i].name = (char *) malloc(strlen(name)+1);
strcpy(mask_names[i].name, name);
int i;
char clean[255];
char *n = clean_name(name, strlen(name), clean, sizeof(clean));
- internal_log_init();
-
+ yaz_init_globals();
+
for (i = 0; mask_names[i].name; i++)
if (0==strcmp(n, mask_names[i].name))
{
yaz_log(YLOG_LOGLVL, "returning log bit 0x%x for '%s' %s",
- mask_names[i].mask, n,
+ mask_names[i].mask, n,
strcmp(n,name) ? name : "");
return mask_names[i].mask;
}
- yaz_log(YLOG_LOGLVL, "returning NO log bit for '%s' %s", n,
+ yaz_log(YLOG_LOGLVL, "returning NO log bit for '%s' %s", n,
strcmp(n, name) ? name : "" );
return 0;
}
int yaz_log_mask_str(const char *str)
{
- internal_log_init(); /* since l_level may be affected */
+ yaz_init_globals(); /* since l_level may be affected */
return yaz_log_mask_str_x(str, l_level);
}
+/* this function is called by yaz_log_init_globals & yaz_init_globals
+ and, thus, may not call any of them indirectly */
int yaz_log_mask_str_x(const char *str, int level)
{
const char *p;
- internal_log_init();
while (*str)
{
int negated = 0;
negated = 1;
str++;
}
- if (isdigit(*(unsigned char *) str))
+ if (yaz_isdigit(*str))
{
level = atoi(str);
}
- else
+ else
{
char clean[509];
- char *n = clean_name(str, p-str, clean, sizeof(clean));
+ char *n = clean_name(str, (size_t) (p - str), clean, sizeof(clean));
int mask = define_module_bit(n);
if (!mask)
level = 0; /* 'none' clears them all */
/*
* Local variables:
* c-basic-offset: 4
+ * c-file-style: "Stroustrup"
* indent-tabs-mode: nil
* End:
* vim: shiftwidth=4 tabstop=8 expandtab
*/
+
projects / yaz-moved-to-github.git / blobdiff