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samba-mirror/ctdb/lib/util/debug.c
Rusty Russell 9fbb191b78 logging: give a unique logging name to each forked child.
This means we can distinguish which child is logging, esp. via syslog where we have no pid.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>

(This used to be ctdb commit 68b3761a0874429b90731741f0531f76dcfbb081)
2010-08-18 11:46:32 +09:30

137 lines
3.2 KiB
C

/*
Unix SMB/CIFS implementation.
ctdb debug functions
Copyright (C) Volker Lendecke 2007
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include "includes.h"
#include "system/time.h"
#include <unistd.h>
#include <ctype.h>
static void _do_debug_v(const char *format, va_list ap)
{
struct timeval t;
char *s = NULL;
struct tm *tm;
char tbuf[100];
int ret;
ret = vasprintf(&s, format, ap);
if (ret == -1) {
fprintf(stderr, "vasprintf failed in _do_debug_v, cannot print debug message.\n");
fflush(stderr);
return;
}
t = timeval_current();
tm = localtime(&t.tv_sec);
strftime(tbuf,sizeof(tbuf)-1,"%Y/%m/%d %H:%M:%S", tm);
fprintf(stderr, "%s.%06u [%s%5u]: %s", tbuf, (unsigned)t.tv_usec,
debug_extra, (unsigned)getpid(), s);
fflush(stderr);
free(s);
}
/* default logging function */
void (*do_debug_v)(const char *, va_list ap) = _do_debug_v;
const char *debug_extra = "";
void do_debug(const char *format, ...)
{
va_list ap;
va_start(ap, format);
do_debug_v(format, ap);
va_end(ap);
}
static void _do_debug_add_v(const char *format, va_list ap)
{
char *s = NULL;
int ret;
ret = vasprintf(&s, format, ap);
if (ret == -1) {
fprintf(stderr, "vasprintf failed in _do_debug_add_v, cannot print debug message.\n");
fflush(stderr);
return;
}
fprintf(stderr, "%s", s);
fflush(stderr);
free(s);
}
/* default logging function */
void (*do_debug_add_v)(const char *, va_list ap) = _do_debug_add_v;
void do_debug_add(const char *format, ...)
{
va_list ap;
va_start(ap, format);
do_debug_add_v(format, ap);
va_end(ap);
}
static void print_asc(int level, const uint8_t *buf, size_t len)
{
int i;
for (i=0;i<len;i++) {
DEBUGADD(level,("%c", isprint(buf[i])?buf[i]:'.'));
}
}
void dump_data(int level, const uint8_t *buf, size_t len)
{
int i=0;
if (len<=0) return;
if (!DEBUGLVL(level)) return;
DEBUG(level, (__location__ " dump data of size %i:\n", (int)len));
DEBUGADD(level,("[%03X] ",i));
for (i=0;i<len;) {
DEBUGADD(level,("%02X ",(int)buf[i]));
i++;
if (i%8 == 0) DEBUGADD(level,(" "));
if (i%16 == 0) {
print_asc(level,&buf[i-16],8); DEBUGADD(level,(" "));
print_asc(level,&buf[i-8],8); DEBUGADD(level,("\n"));
if (i<len) DEBUGADD(level,("[%03X] ",i));
}
}
if (i%16) {
int n;
n = 16 - (i%16);
DEBUGADD(level,(" "));
if (n>8) DEBUGADD(level,(" "));
while (n--) DEBUGADD(level,(" "));
n = MIN(8,i%16);
print_asc(level,&buf[i-(i%16)],n); DEBUGADD(level,( " " ));
n = (i%16) - n;
if (n>0) print_asc(level,&buf[i-n],n);
DEBUGADD(level,("\n"));
}
DEBUG(level, (__location__ " dump data of size %i finished\n", (int)len));
}