#ifndef _LIGHTTPD_SETTINGS_H_
#define _LIGHTTPD_SETTINGS_H_
#include "first.h"

#ifdef __GNUC__
# define LI_NORETURN __attribute__((noreturn))
#else
# define LI_NORETURN
#endif

#define UNUSED(x) ( (void)(x) )

#define BV(x) (1 << x)

#define FILE_CACHE_MAX      16

/**
 * max size of a buffer which will just be reset
 * to ->used = 0 instead of really freeing the buffer
 *
 * 64kB (no real reason, just a guess)
 */
#define BUFFER_MAX_REUSE_SIZE  (4 * 1024)

/* both should be way smaller than SSIZE_MAX :) */
#define MAX_READ_LIMIT (256*1024)
#define MAX_WRITE_LIMIT (256*1024)

/**
 * max size of the HTTP request header
 *
 * 32k should be enough for everything (just a guess)
 *
 */
#define MAX_HTTP_REQUEST_HEADER  (32 * 1024)

typedef enum { HANDLER_UNSET,
		HANDLER_GO_ON,
		HANDLER_FINISHED,
		HANDLER_COMEBACK,
		HANDLER_WAIT_FOR_EVENT,
		HANDLER_ERROR,
		HANDLER_WAIT_FOR_FD
} handler_t;

#define HTTP_LINGER_TIMEOUT 5

#ifndef __sgi
/* IRIX doesn't like the alarm based time() optimization */
/* #define USE_ALARM */
#endif

/* select event-systems */

#if defined(HAVE_EPOLL_CTL) && defined(HAVE_SYS_EPOLL_H)
# define USE_LINUX_EPOLL
#endif

/* MacOS 10.3.x has poll.h under /usr/include/, all other unixes
 * under /usr/include/sys/ */
#if defined(HAVE_POLL) && (defined(HAVE_SYS_POLL_H) || defined(HAVE_POLL_H))
# define USE_POLL
#endif

#if defined(HAVE_SELECT)
# define USE_SELECT
#endif

#if defined(HAVE_SYS_DEVPOLL_H) && defined(__sun)
# define USE_SOLARIS_DEVPOLL
#endif

#if defined(HAVE_PORT_H) && defined(HAVE_PORT_CREATE) && defined(__sun)
# define USE_SOLARIS_PORT
#endif

#if defined(HAVE_SYS_EVENT_H) && defined(HAVE_KQUEUE)
# define USE_FREEBSD_KQUEUE
#endif

/* sendfile/writev/mmap */

/* on linux 2.4.x you get either sendfile or LFS */
#if defined(HAVE_SYS_SENDFILE_H) && defined(HAVE_SENDFILE) && (!defined(_LARGEFILE_SOURCE) || defined(HAVE_SENDFILE64)) && defined(__linux__) && !defined(HAVE_SENDFILE_BROKEN)
# if defined(USE_SENDFILE)
#  error "can't have more than one sendfile implementation"
# endif
# define USE_SENDFILE "linux-sendfile"
# define USE_LINUX_SENDFILE
#endif

#if defined(HAVE_SENDFILE) && (defined(__FreeBSD__) || defined(__DragonFly__))
# if defined(USE_SENDFILE)
#  error "can't have more than one sendfile implementation"
# endif
# define USE_SENDFILE "freebsd-sendfile"
# define USE_FREEBSD_SENDFILE
#endif

#if defined(HAVE_SENDFILE) && defined(__APPLE__)
# if defined(USE_SENDFILE)
#  error "can't have more than one sendfile implementation"
# endif
# define USE_SENDFILE "darwin-sendfile"
# define USE_DARWIN_SENDFILE
#endif

#if defined(HAVE_SYS_SENDFILE_H) && defined(HAVE_SENDFILEV) && defined(__sun)
# if defined(USE_SENDFILE)
#  error "can't have more than one sendfile implementation"
# endif
# define USE_SENDFILE "solaris-sendfilev"
# define USE_SOLARIS_SENDFILEV
#endif

/* not supported so far
#if defined(HAVE_SEND_FILE) && defined(__aix)
# if defined(USE_SENDFILE)
#  error "can't have more than one sendfile implementation"
# endif
# define USE_SENDFILE "aix-sendfile"
# define USE_AIX_SENDFILE
#endif
*/

#if defined(HAVE_SYS_UIO_H) && defined(HAVE_WRITEV)
# define USE_WRITEV
#endif

#if defined(HAVE_SYS_MMAN_H) && defined(HAVE_MMAP) && defined(ENABLE_MMAP)
# define USE_MMAP
#endif

#endif