/*

 * fcgios.h --

 *

 *      Description of file.

 *

 *

 *  Copyright (c) 1996 Open Market, Inc.

 *  All rights reserved.

 *

 *  This file contains proprietary and confidential information and

 *  remains the unpublished property of Open Market, Inc. Use,

 *  disclosure, or reproduction is prohibited except as permitted by

 *  express written license agreement with Open Market, Inc.

 *

 *  Bill Snapper

 *  snapper@openmarket.com

 */

#ifndef _FCGIOS_H

#define _FCGIOS_H



#ifdef _WIN32

#define WIN32_LEAN_AND_MEAN 

#include <windows.h>

#include <winsock2.h>

#endif



#include "fcgi_config.h"



#ifdef HAVE_SYS_TIME_H

#include <sys/time.h>

#endif



#ifdef HAVE_SYS_TYPES_H

#include <sys/types.h>

#endif



#if defined (c_plusplus) || defined (__cplusplus)

extern "C" {

#endif



#ifdef _WIN32

#define OS_Errno GetLastError()

#define OS_SetErrno(err) SetLastError(err)

#ifndef O_NONBLOCK

#define O_NONBLOCK     0x0004  /* no delay */

#endif

#else /* !_WIN32 */

#define OS_Errno errno

#define OS_SetErrno(err) errno = (err)

#endif /* !_WIN32 */



#ifndef DLLAPI

#ifdef _WIN32

#define DLLAPI __declspec(dllimport)

#else

#define DLLAPI

#endif

#endif





/* This is the initializer for a "struct timeval" used in a select() call

 * right after a new request is accept()ed to determine readablity.  Its

 * a drop-dead timer.  Its only used for AF_UNIX sockets (not TCP sockets).

 * Its a workaround for a kernel bug in Linux 2.0.x and SCO Unixware.

 * Making this as small as possible, yet remain reliable would be best.

 * 2 seconds is very conservative.  0,0 is not reliable.  The shorter the

 * timeout, the faster request processing will recover.  The longer the

 * timeout, the more likely this application being "busy" will cause other

 * requests to abort and cause more dead sockets that need this timeout. */

#define READABLE_UNIX_FD_DROP_DEAD_TIMEVAL 2,0



#ifndef STDIN_FILENO

#define STDIN_FILENO  0

#endif



#ifndef STDOUT_FILENO

#define STDOUT_FILENO 1

#endif



#ifndef STDERR_FILENO

#define STDERR_FILENO 2

#endif



#ifndef MAXPATHLEN

#define MAXPATHLEN 1024

#endif



#ifndef X_OK

#define X_OK       0x01

#endif



#ifndef _CLIENTDATA

#   if defined(__STDC__) || defined(__cplusplus)

    typedef void *ClientData;

#   else

    typedef int *ClientData;

#   endif /* __STDC__ */

#define _CLIENTDATA

#endif



typedef void (*OS_AsyncProc) (ClientData clientData, int len);



DLLAPI int OS_LibInit(int stdioFds[3]);

DLLAPI void OS_LibShutdown(void);

DLLAPI int OS_CreateLocalIpcFd(const char *bindPath, int backlog);

DLLAPI int OS_FcgiConnect(char *bindPath);

DLLAPI int OS_Read(int fd, char * buf, size_t len);

DLLAPI int OS_Write(int fd, char * buf, size_t len);

DLLAPI int OS_SpawnChild(char *execPath, int listenFd);

DLLAPI int OS_AsyncReadStdin(void *buf, int len, OS_AsyncProc procPtr,

                      ClientData clientData);

DLLAPI int OS_AsyncRead(int fd, int offset, void *buf, int len,

		 OS_AsyncProc procPtr, ClientData clientData);

DLLAPI int OS_AsyncWrite(int fd, int offset, void *buf, int len,

		  OS_AsyncProc procPtr, ClientData clientData);

DLLAPI int OS_Close(int fd);

DLLAPI int OS_CloseRead(int fd);

DLLAPI int OS_DoIo(struct timeval *tmo);

DLLAPI int OS_Accept(int listen_sock, int fail_on_intr, const char *webServerAddrs);

DLLAPI int OS_IpcClose(int ipcFd);

DLLAPI int OS_IsFcgi(int sock);

DLLAPI void OS_SetFlags(int fd, int flags);



DLLAPI void OS_ShutdownPending(void);



#if defined (__cplusplus) || defined (c_plusplus)

} /* terminate extern "C" { */

#endif



#endif /* _FCGIOS_H */