-/*
- * Copyright (C) 1995-2006, Index Data ApS
+/* This file is part of the YAZ toolkit.
+ * Copyright (C) 1995-2010 Index Data
* See the file LICENSE for details.
- *
- * $Id: log.c,v 1.40 2006-09-29 15:29:36 adam Exp $
*/
/**
#ifdef WIN32
#include <windows.h>
+#include <sys/stat.h>
#endif
-#if YAZ_POSIX_THREADS
-#include <pthread.h>
-#endif
-
-#if YAZ_GNU_THREADS
-#include <pth.h>
-#endif
-
+#if HAVE_SYS_STAT_H
#include <sys/stat.h>
+#endif
#include <stdio.h>
#include <stdlib.h>
#include <ctype.h>
#include <stdarg.h>
#include <errno.h>
#include <time.h>
-#include <yaz/nmem.h>
+#include <yaz/errno.h>
+#include <yaz/thread_id.h>
#include <yaz/log.h>
+#include <yaz/snprintf.h>
#include <yaz/xmalloc.h>
-static NMEM_MUTEX log_mutex = 0;
-static int mutex_init_flag = 0; /* not yet initialized */
-
-#define HAS_STRERROR 1
-
-
-#if HAS_STRERROR
+static int l_level = YLOG_DEFAULT_LEVEL;
-#else
-char *strerror(int n)
-{
- extern char *sys_errlist[];
- return sys_errlist[n];
-}
-
-#endif
-
-
-static int default_log_level(void)
-{
- char *env = getenv("YAZ_LOG");
- if (env != 0)
- return yaz_log_mask_str_x(env, YLOG_DEFAULT_LEVEL);
- else
- return YLOG_DEFAULT_LEVEL;
-}
-
-
-static int l_level = -1; /* will be set from default_log_level() */
-
-enum l_file_type { use_stderr, use_none, use_file };
+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;
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 to 1 GB */
-static const int l_def_max_size = 1024*1024*1024;
-static int l_max_size = 1024*1024*1024;
+/** 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 = 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_APP3, "app3" },
static unsigned int next_log_bit = YLOG_LAST_BIT<<1; /* first dynamic bit */
-static void init_mutex(void)
+static void internal_log_init(void)
{
+ static int mutex_init_flag = 0; /* not yet initialized */
+ char *env;
+
if (mutex_init_flag)
return;
- nmem_mutex_create(&log_mutex);
- mutex_init_flag = 1;
+ mutex_init_flag = 1; /* here, 'cause nmem_mutex_create may call yaz_log */
+
+ env = getenv("YAZ_LOG");
+ if (env)
+ l_level = yaz_log_mask_str_x(env, l_level);
}
+
FILE *yaz_log_file(void)
{
FILE *f = 0;
void yaz_log_init_file(const char *fname)
{
- init_mutex();
+ internal_log_init();
yaz_log_close();
if (fname)
static void rotate_log(const char *cur_fname)
{
int i;
+
#ifdef WIN32
/* windows can't rename a file if it is open */
- fclose(yaz_global_log_file);
- yaz_global_log_file = 0;
+ yaz_log_close();
#endif
- for (i = 0; i<100; i++)
+ for (i = 0; i<9; i++)
{
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)
{
- init_mutex();
- if (l_level < 0)
- l_level = default_log_level();
+ internal_log_init();
if ( (l_level & YLOG_FLUSH) != (level & YLOG_FLUSH) )
{
l_level = level;
}
else
l_level = level;
+
if (l_level & YLOG_LOGLVL)
{ /* dump the log level bits */
const char *bittype = "Static ";
yaz_log(YLOG_LOGLVL, "Setting log level to %d = 0x%08x",
l_level, l_level);
/* determine size of mask_names (locked) */
- nmem_mutex_enter(log_mutex);
for (sz = 0; mask_names[sz].name; sz++)
;
- nmem_mutex_leave(log_mutex);
/* second pass without lock */
for (i = 0; i < sz; i++)
if (mask_names[i].mask && *mask_names[i].name)
void yaz_log_init_prefix(const char *prefix)
{
if (prefix && *prefix)
- sprintf(l_prefix, "%.511s ", prefix);
+ yaz_snprintf(l_prefix, sizeof(l_prefix), "%s ", prefix);
else
*l_prefix = 0;
}
void yaz_log_init_prefix2(const char *prefix)
{
if (prefix && *prefix)
- sprintf(l_prefix2, "%.511s ", prefix);
+ yaz_snprintf(l_prefix2, sizeof(l_prefix2), "%s ", prefix);
else
*l_prefix2 = 0;
}
void yaz_log_init(int level, const char *prefix, const char *fname)
{
- init_mutex();
+ internal_log_init();
yaz_log_init_level(level);
yaz_log_init_prefix(prefix);
if (fname && *fname)
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)
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 (l_fname && *l_fname)
+ if (yaz_file_type != use_file)
+ return;
+
+ if (*l_fname)
{
strftime(new_filename, sizeof(new_filename)-1, l_fname, tm);
if (strcmp(new_filename, cur_filename))
}
}
- if (l_max_size > 0 && yaz_global_log_file && yaz_file_type == use_file)
+ if (l_max_size > 0 && yaz_global_log_file)
{
long flen = ftell(yaz_global_log_file);
if (flen > l_max_size)
force = 1;
}
}
- if (force && yaz_file_type == use_file && *cur_filename)
+ if (force && *cur_filename)
{
+ FILE *new_file;
+#ifdef WIN32
yaz_log_close();
- 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);
+#endif
+ new_file = fopen(cur_filename, filemode);
+ if (new_file)
+ {
+ yaz_log_close();
+ yaz_global_log_file = new_file;
+ if (l_level & YLOG_FLUSH)
+ setvbuf(yaz_global_log_file, 0, _IONBF, 0);
+ }
+ else
+ {
+ /* disable log rotate */
+ l_max_size = 0;
+ }
}
}
struct tm *tm;
#endif
- nmem_mutex_enter(log_mutex);
#if HAVE_LOCALTIME_R
localtime_r(&cur_time, tm);
#else
tm = localtime(&cur_time);
#endif
yaz_log_open_check(tm, 1, filemode);
- nmem_mutex_leave(log_mutex);
}
yaz_log_do_reopen("w");
}
-
-
static void yaz_strftime(char *dst, size_t sz,
const char *fmt, const struct tm *tm)
{
- const char *cp = strstr(fmt, "%!");
- if (cp && strlen(fmt) < 60)
- {
- char fmt2[80];
- char tpidstr[20];
-#ifdef WIN32
- 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';
- sprintf(tpidstr, "%08lx", (long) tid);
- strcat(fmt2, tpidstr);
- strcat(fmt2, cp+2);
- strftime(dst, sz, fmt2, tm);
- }
- else
- strftime(dst, sz, fmt, tm);
+ strftime(dst, sz, fmt, tm);
}
static void yaz_log_to_file(int level, const char *log_message)
struct tm *tm;
#endif
- init_mutex();
+ internal_log_init();
- nmem_mutex_enter(log_mutex);
-
#if HAVE_LOCALTIME_R
localtime_r(&ti, tm);
#else
if (file)
{
char tbuf[TIMEFORMAT_LEN];
+ char tid[TID_LEN];
char flags[1024];
int i;
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;
}
}
-
- if (l_level & YLOG_NOTIME)
- tbuf[0] = '\0';
- else
- 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,
+
+ tbuf[0] = '\0';
+ if (!(l_level & YLOG_NOTIME))
+ {
+ yaz_strftime(tbuf, TIMEFORMAT_LEN-2, l_actual_format, tm);
+ tbuf[TIMEFORMAT_LEN-2] = '\0';
+ }
+ if (tbuf[0])
+ strcat(tbuf, " ");
+ 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, l_prefix, tid, flags, l_prefix2,
log_message);
- if (l_level & (YLOG_FLUSH|YLOG_DEBUG) )
+ if (l_level & YLOG_FLUSH)
fflush(file);
}
- nmem_mutex_leave(log_mutex);
}
void yaz_log(int level, const char *fmt, ...)
FILE *file;
int o_level = level;
- if (l_level < 0)
- l_level = default_log_level();
+ internal_log_init();
if (!(level & l_level))
return;
va_start(ap, fmt);
-#ifdef WIN32
- _vsnprintf(buf, sizeof(buf)-1, fmt, ap);
-#else
-/* !WIN32 */
-#if HAVE_VSNPRINTF
- vsnprintf(buf, sizeof(buf), fmt, ap);
-#else
- vsprintf(buf, fmt, ap);
-#endif
-#endif
-/* WIN32 */
+
+ /* 30 is enough for our 'rest of output' message */
+ yaz_vsnprintf(buf, sizeof(buf)-30, fmt, ap);
+ if (strlen(buf) >= sizeof(buf)-31)
+ strcat(buf, " [rest of output omitted]");
+
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)
}
/** 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;
static int define_module_bit(const char *name)
{
- int i;
- init_mutex();
- nmem_mutex_enter(log_mutex);
+ size_t i;
+
for (i = 0; mask_names[i].name; i++)
if (0 == strcmp(mask_names[i].name, name))
{
- nmem_mutex_leave(log_mutex);
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) ))
{
- nmem_mutex_leave(log_mutex);
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 = malloc(strlen(name)+1);
+ mask_names[i].name = (char *) malloc(strlen(name)+1);
strcpy(mask_names[i].name, name);
mask_names[i+1].name = NULL;
mask_names[i+1].mask = 0;
- nmem_mutex_leave(log_mutex);
return mask_names[i].mask;
}
int i;
char clean[255];
char *n = clean_name(name, strlen(name), clean, sizeof(clean));
- init_mutex();
+ internal_log_init();
- nmem_mutex_enter(log_mutex);
for (i = 0; mask_names[i].name; i++)
if (0==strcmp(n, mask_names[i].name))
{
- nmem_mutex_leave(log_mutex);
yaz_log(YLOG_LOGLVL, "returning log bit 0x%x for '%s' %s",
mask_names[i].mask, n,
strcmp(n,name) ? name : "");
return mask_names[i].mask;
}
- nmem_mutex_leave(log_mutex);
yaz_log(YLOG_LOGLVL, "returning NO log bit for '%s' %s", n,
- strcmp(n, name) ? name : "" );
+ strcmp(n, name) ? name : "" );
return 0;
}
int yaz_log_mask_str(const char *str)
{
- return yaz_log_mask_str_x(str, default_log_level());
+ internal_log_init(); /* since l_level may be affected */
+ return yaz_log_mask_str_x(str, l_level);
}
int yaz_log_mask_str_x(const char *str, int level)
{
const char *p;
+ internal_log_init();
while (*str)
{
int negated = 0;
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