/* LOGGER.H     (c) Copyright Jan Jaeger, 2003-2006                  */
/*              System logger functions                              */

#ifndef __LOGGER_H__
#define __LOGGER_H__

#ifndef _LOGMSG_C_
#ifndef _HUTIL_DLL_
#define LOG_DLL_IMPORT DLL_IMPORT
#else   /* _HUTIL_DLL_ */
#define LOG_DLL_IMPORT extern
#endif  /* _HUTIL_DLL_ */
#else   /* _LOGGER_C_ */
#define LOG_DLL_IMPORT DLL_EXPORT
#endif /* _LOGGER_C_ */

#ifndef _LOGGER_C_
#ifndef _HUTIL_DLL_
#define LOGR_DLL_IMPORT DLL_IMPORT
#else
#define LOGR_DLL_IMPORT extern
#endif
#else
#define LOGR_DLL_IMPORT DLL_EXPORT
#endif

#define LOG_READ  0
#define LOG_WRITE 1

extern int logger_syslogfd[2];

#define LOG_NOBLOCK 0
#define LOG_BLOCK   1

#if defined(SSIZE_MAX) && SSIZE_MAX < 1048576
 #define LOG_DEFSIZE SSIZE_MAX
#else
 #define LOG_DEFSIZE 65536
#endif

/* Logging functions in logmsg.c */
LOG_DLL_IMPORT void logmsg(char *,...);
LOG_DLL_IMPORT void logmsgp(char *,...);
LOG_DLL_IMPORT void logmsgb(char *,...);
LOG_DLL_IMPORT void logdevtr(DEVBLK *dev, char *, ...);

LOGR_DLL_IMPORT void logger_init(void);

LOGR_DLL_IMPORT int log_read(char **buffer, int *msgindex, int block);
LOGR_DLL_IMPORT int log_line(int linenumber);
LOGR_DLL_IMPORT void log_sethrdcpy(char *filename);
LOGR_DLL_IMPORT void log_wakeup(void *arg);

/* Log routing section */
typedef void LOG_WRITER(void *,char *);
typedef void LOG_CLOSER(void *);

LOG_DLL_IMPORT int log_open(LOG_WRITER*,LOG_CLOSER*,void *);
LOG_DLL_IMPORT void log_close(void);
LOG_DLL_IMPORT void log_write(int,char *);
/* End of log routing section */

/* Log routing utility */
LOG_DLL_IMPORT char *log_capture(void *(*)(void *),void *);

#endif