void dlog (int sink, int prio, const char * fmt, ...)
__attribute__((format(printf, 3, 4)));
#include <pthread.h>
#include <stdarg.h>
#include "log_pthread.h"
extern int logsink;
#define condlog(prio, fmt, args...) \
dlog(logsink, prio, fmt "\n", ##args)