/* "UNIX network programming"'s own header*/

#ifndef __unpipc_h
#define __unpipc_h
#endif

//#include	"../config.h"	/*"../config.h" is generated by configure */

/* If anything chages in the following list of #includes, must change ../aclocal.m4 and ../configure.in also, for confiruge's tests. */

#include <sys/types.h>	/*basic system data types */
#include <sys/time.h>	/* timeval{} for select() */
#include <errno.h>		/* timespec{} for pselect() */
#include <fcntl.h>		
#include <limits.h>		/* for nonblocking */
#include <signal.h>		/* PIPE_BUF */
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/stat.h>	/* for S_xxx file mode constatns */
#include <unistd.h>
#include <sys/wait.h>

#define MSG_R 0400
#define MSG_W 0200

#ifdef	HVAE_MQUEUE_H
#include	<mqueue.h>	/* Posix message queues */
#endif

#ifdef	HAVE_SEMAPHORE_H
#include	<semaphore.h>	/* Posix semaphores */

#ifndef SEM_FAILED
#define SEM_FAILED ((sem_t *)(-1))
#endif

#endif

#ifdef	HAVE_SYS_MMAN_H
#include	<sys/mman.h>	/* Posix shared memory */
#endif

#ifndef	MAP_FAILED
#define	MAP_FAILED	((void *)(-1))
#endif

#ifdef	HAVE_SYS_IPC_H
#include	<sys/ipc.h>	/* system V IPC */
#endif

#ifdef	HAVE_SYS_MSG_H
#include	<sys/msg.h>	/* System V message queues */
#endif

#ifdef	HAVE_SYS_SEM_H
#ifdef	__bsdi__
#undef	HAVE_SYS_SEM_H	/* hack: BSDI's semctl() prototype is wrong */
#else
#include	<sys/sem.h>
#endif

#ifndef	HAVE_SEMUN_UNION
union semun{
	int		val;
	struct	semid_ds *buf;
	unsigned short *array;
};
#endif
#endif	/* HAVE_SYS_SHM_H */

#ifdef	HAVE_SYS_SHM_H
#include	<sys/shm.h>	/* system V shared memory */
#endif

#ifdef	HAVE_POLL_H
#include	<poll.h>		/* for convenience */
#endif

#ifdef	HAVE_STROPTS_H
#include	<stropts.h>	/* for convenience */
#endif

#ifdef	HAVE_STRINGS_H
#include	<strings.h>	/* for convenience */
#endif

/* Next three header are normally needed for socket/file ioctl's:
 * <sys/ioctl.h>, <sys/filio.h>, and <sys/sockio.h>
 */
#ifdef	HAVE_SYS_IOCTL_H
#include	<sys/ioctl.h>
#endif
#ifdef	HAVE_SYS_FILIO_H
#include	<sys/filio.h>
#endif

#ifdef	HAVE_PTHREAD_H
#include	<pthread.h>
#endif

#ifdef	HAVE_DOOR_H
#include	<door.h>			/* Solaris doors API */
#endif

#ifdef	HAVE_RPC_RPC_H
#ifdef	_PSX4_NSPACE_H_TS	/* Digital Unix 4.0b hack, hack, hack */
#undef	SUCCESS
#endif
#include	<rpc/rpc.h>		/* Sun RPC */
#endif

/* Define bzero() as a macro if it's not in standard C library. */
#ifndef HAVE_BZERO
#define bzero(ptr, n) memset(ptr, 0, n)
#endif

/* Posix.1g requires that an #include of <poll.h> define INFTIM, but many
   systems still define it in <sys/stropts.h>. We don't wat to include 
   all the streams stuff if it's not needed, so we just define INFTIM here.
   This is the standard value, but there's no guarantee it is -1. */
#ifndef	INFTIM
#define	INFTIM (-1)		/* infinite poll timeout */
#ifdef	HAVE_POLL_H
#define	INFTIM_UNPH		/* tell unpxti.h we defined it */
#endif
#endif

/* Miscellaneous constants */
#ifndef	PATH_MAX			/* should be in <limits.h> */
#define	PATH_MAX	1024		/* max # of characters in a pathname */
#endif

#define	MAX_PATH	1024
#define	MAXLINE	4096		/* max text line length */
#define	BUFFSIZE	8192		/* buffer size for reads and writes */
#define FILE_MODE	(S_IRUSR | S_IWUSR | S_IRGRP | S_IROTH)
				/* ddefault permissions for new files */
#define DIR_MODE	(FILE_MODE | S_IXUSR | S+IXGRP | S_IXOTH)
				/* default permissions for new directories */

#define SVMSG_MODE	(MSG_R | MSG_W | MSG_R>>3 | MSG_R>>6)
				/* default permissions for new SV message queues */
#define SVSEM_MODE	(SEM_R | SEM_A | SEM_R>>3 | SEM_R>>6)
				/* default permissions for new SV semaphores */
#define SVSHM_MODE	(SHM_R | SHM_W | SHM_R>>3 | SHM_R>>6 )
				/* default permissions for new SV shared memory */

typedef void Sigfunc (int);	/* for signal handlers */

#ifdef	HVAE_SIGINFO_T_STRUCT
typedef void Sigfunc_rt (int, siginfo_t *, void *);
#endif

#define min(a,b)	((a) < (b) ? (a) : (b))
#define max(a,b)    ((a) > (b) ? (a) : (b))


#ifndef	HAVE_TIMESPEC_STRUCT
//struct timespec{
//	time_t	tv_sec;		/* seconds */
//	long		tv_nsec;		/* and nanoseconds */
//};
#endif


/*
 * In our wrappers for open(), mq_open(), and sem_open() we handle the
 *optional arguments using the va_XXX() macros. But one of the optional
 * arguments is of type "mode_t" and this breaks under BSD/OS because it
 * uses a 16-bit integer for this datatype. But when our wrapper funcion
 * is called, the compiler expands the 16-bit short integer to a 32-bit
 * integer. This breaks our call to va_arg(). All we can do is the
 * following hack. Other systems in addition to BSD/OS might have this problem to ...
 */

#ifdef	__bsdi__
#define	va_mode_t	int
#else
#define	va_mode_t	mode_t
#endif

/* our record locking macros */
#define read_lock(fd, offset, whence, len) \
			lock_reg(fd, F_SETLK, F_RDLCK, offset, whence, len)
#define readq_lock(fd, offset, whence, len) \
			lock_reg(fd, F_SETLKW, F_RDLCK, offset, whence, len)
#define write_lock(fd, offset, whence, len) \
               lock_reg(fd, F_SETLK, F_WRLCK, offset, whence, len)
#define writew_lock(fd, offset, whence, len) \
                lock_reg(fd, F_SETLKW, F_WRLCKW offset, whence, len)
#define un_lock(fd, offset, whence, len) \
			lock_reg(fd, F_SETLK, F_UNLCK, offset, whence, len)
#define is_read_lockable(fd, offset, whence, len) \
			lock_test(fd, F_RDLCK, offset, whence, len)
#define is_write_lockable(fd, offset, whence, len) \
			lock_test(fd, F_WRLCK, offset, whence, len)